Free Bradford White RTG-S-199-X1 Infiniti GS Series Instruction Manual PDF | Manualsnet (2024)

WARNING If the information in this manual is not followed exactly, a fire or explosion may result causing property damage, personal injury or loss of life.

Do not store or use gasoline or other flammable vapors and liquids in the vicinity of this or any other appliance.

WHAT TO DO IF YOU SMELL GAS Do not try to light any appliance. Do not touch any electrical switch; do not

use any phone in your building. Immediately call your gas supplier from a

nearby phone. Follow the gas supplier's instructions.

If you cannot reach your gas supplier, call the fire department.

Installation and service must be performed by a qualified installer, service agency, or gas supplier.

FOR YOUR SAFETY: This product must be installed and serviced by a professional service technician, qualified in water heater installation and maintenance. Improper installation and/or operation could create carbon monoxide gas in flue gases which could cause serious injury, property damage, or death. Improper installation and/or operation will void the warranty.

AVERTISsem*nT Assurez-vous de bien suivres les instructions donnes dans cette notice pour rduire au minimum le risque dincendie ou dexplosion ou pour viter tout dommage matriel, toute blessure ou la mort.

Ne pas entreposer ni utiliser dessence ou ni dautres vapeurs ou liquides inflammables dans le proximit de cet appareil ou de tout autre appareil.

QUE FAIRE SI VOUS SENTEZ UNE ODEUR DE GAZ: Ne pas tenter dallumer dappareils. Ne touchez aucun interrupteur. Ne pas vous servir

des tlphones dans le btiment o vous vous trovez.

Appelez immdiatement votre fournisseur de gaz depuis un voisin. Suivez les instructions du fournisseur.

Si vous ne pouvez rejoindre le fournisseur de gaz, appelez le sservice des incendies.

Linstallation et lentretien doivent tre assurs par un installateur ou un service dentretien qualifi ou par le fournisseur de gaz.

(199,000 BTU/hr)

Natural Gas (NG) - Factory Configuration Propane (LP) - Factory Configuration

Installation and Operation Instructions

Installation and Operation Instructions for

Infiniti GS Series Wall-Mounted, Modulating Gas Condensing Water Heater Model RTGS199N1 / RTGS199X1

238-54627-00A Rev 07/22

TABLE OF CONTENTS

SECTION 1 Product Accessories 1.1 Introduction ...........................................................3 1.2 Included with the Unit ...........................................3

SECTION 2 Product Characteristics 2.1 Model Nomenclature ............................................4 2.2 Specifications .......................................................5 2.3 Dimensions ...........................................................6 2.4 Names of Components .........................................7

SECTION 3 Safety Regulations 3.1 Safety Symbols ....................................................8 3.2 Safety Precautions and Proper Use .....................9

SECTION 4 Installation

4.15 Air Handler Mode ................................................... 35 4.16 Disposal of Condensate .....................................38 4.17 Pressure Relief Valve .........................................39 4.18 Electrical Wiring Connections .............................39 4.19 DIP Switches .....................................................40 4.20 Wiring Diagram ..................................................41 4.21 Ladder Diagram .................................................42 4.22 Electrical Connections .......................................43

SECTION 5 Control Display and Operation 5.1 Control Dial and Buttons ....................................45 5.2 LCD Overview ...................................................46 5.3 Operating Mode ..................................................47 5.4 Status Display Mode ..........................................48 5.5 Set Point Change Mode .....................................49 5.6 Installer Mode ....................................................50 5.7 Error Mode .........................................................51

SECTION 6 Error Codes 6.1 Error Codes .......................................................52

SECTION 7 Troubleshooting 7.1 Diagnostics .........................................................56

SECTION 8 Maintenance 8.1 Annual Startup and General Maintenance .........60

SECTION 9 Installation Check 9.1 Quick View .........................................................61 9.2 Final check lists ..................................................61

SECTION 10 Warranty

NOTE: For Cascading Installations, please refer to the cascading instructions, available

online. 4.1 Location and Clearances ....................................12 4.2 Wall Mount Bracket ............................................13 4.2.1 The installation height and location ...................13 4.2.2 Hang the Water Heater.......................................13 4.3 Combustion Air ...................................................14 4.3.1 Combustion Air from Room ................................14 4.3.2 Ducted Combustion Air .......................................14 4.4 Venting (Exhaust) ...............................................16

4.5 General Location Guideline ................................18 4.6 Locations for Vent Pipe Terminal ........................19 4.6.1 Direct Venting Clearances .................................19 4.6.2 Non-Direct Venting Clearances .........................20 4.6.3 Venting Requirements in the

Commonwealth of Massachusetts .....................21 4.6.4 Common Vent Test .............................................22 4.7 Air Supply and Vent Connections .......................23 4.7.1 Vent / Air Pipe Lengths .......................................23 4.7.2 Direct Venting .....................................................23 4.7.3 Single Venting ...................................................24 4.8 Vent / Air Pipe Termination .................................24 4.9 Gas Supply and Piping .......................................27 4.10 Gas Supply Pressure .........................................30 4.11 Gas Setup and Adjustment .................................30 4.12 Gas High Altitude Setting ..................................31 4.13 Plumbing Guidelines. ...................................... 32

4.14 Select Water Heater Mode ................................ 33

4.4.1 Selecting Vent Pipe.............................................17

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SECTION 1 Product Accessories

Items Descriptions Qty

Tankless Water Heater 1

Installation Instructions and Users Manual 1

Wall Mount Bracket 1

Bolts w/Anchors

Vent terminal cap 2" 2

Parts Kit 1

Edition "National Fuel Gas Code" or 2) CSA B149.1 "Natural Gas and Propane Installation Code" and with the requirement of the local utility or other authorities having jurisdiction. Such applicable requirements take precedence over the general instructions contained herein.

All electrical wiring is to be done in accordance with the local codes, or in the absence of local codes, with: 1) The National Electrical Code ANSI/NFPA No. 70-latest Edition, or 2) CSA STD. C22.1 "Canadian Electrical Code - Part 1". This appliance must be electrically grounded in accordance with these codes.

1.1 Introduction This manual provides information necessary for the installation, operation, and maintenance of the GS Series. All application and installation procedures must be read and reviewed completely before proceeding with the installation. Consult the manufacturer, or your local factory representative, with any problems or questions regarding this equipment. Experience has shown that most operating problems are caused by improper installation.

All installations must be made in accordance with 1) American National Standard Z223.1/NFPA54-Latest

1.2 Included with the Unit

Infiniti GS Series Tankless Water Heater

44

Page 4

SECTION 2 Product Characteristics

2.1 Model Nomenclature The Model Nomenclature is shown on your Rating Plate and consists of a series of letters and numbers that further identifies the characteristics of your GS Series Water Heater.

MODEL NUMBER

WARNING Do not use this appliance if any part has been under water. Immediately call a qualified service technician to inspect the appliance and to replace any part of the control system and any gas control that may have been under water.

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R T 1 9 9

Model

BWC Tankless

Size

199 mBH

Fuel

N - Natural X - Propane

Pump Option

S - No Pump R - With Recirculation Pump

NG S

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2.2 Specifications

Model Name RTGS199N1 / RTGS199X1

Gas Input Rate MAX 199,000 Btu/h MIN 18,000 Btu/h

High Elevation 180,000 Btu/h

Hot Water Capacity 35F Rise 11.1 Gal/min (42 L/min) 45F Rise 8.7 Gal/min (32.9 L/min) 77F Rise 5.1 Gal/min (19.3 (L/min)

Installation Indoor / Outdoor Wall Hung (with outdoor vent cap) Flue System Sealed Combustion Direct Vent, Single Vent, Outdoor

Max Vent Run 2 (60ft) / 3 (150ft) Schedule 40 PVC, CPVC, PP

Orifice Size NG (Gas / Needle) 0.330 (8.4mm) / 0.342 (8.7mm) LP (Gas / Needle) 0.259 (6.6mm) / 0.263 (6.7mm)

Gas Supply Pressure NG 3.5 WC to 10.5 WC LP 8.0 WC to 14 WC

Manifold Pressure

Gas Type NG LP

Low Fire 2 VENT 0.1 WC -0.05 WC 3 VENT 0.1 WC -0.05 WC

High Fire 2 VENT -0.20 WC -0.30 WC 3 VENT -0.20 WC -0.30 WC

Power Supply Main Supply 120V 60Hz Max Current Less than 2A

Power Consumption Standby 2.7W

Operation 74W / 188W with external pump Anti Freeze 53W

Ignition System Direct Electronic Ignition / Automatic Flame Sensing Burner System Premixed Metal Fiber Burner

Gas Valve System Air Ratio Valve Minimum Flow Activation Flow 0.5 GPM

Internal Pipe Material Stainless Steel (304) and PPS Dimensions W 17.3 H 27.6 D 14.9

Weight 78 lbs (35.5 kg) Water Holding Capacity Under 2 Gallons

Control Panel / Circuit Board PR-922C / NGTH-9600C

Water Pressure MAX 150 psi MIN 15 psi

Materials Casing Cold Rolled Carbon Steel

Heat Exchanger Heat Exchanger : SS 304

Safety Devices Flame Sensor, Overheat Cut Off Switch, Gas Leak Detector, Water Leak Detector, Exhaust Temperature Sensor, Water Temperature Sensor

Temperature Operating ambient Temperature Range : Range: 14F to 140F (-10 to 60C). Operating Relative Humidity up to: 90% at 104F (40C). Shipping & Storage Temperature Range of : -4F to 176F (-20 to 80C).

Infiniti GS Series Tankless Water Heater

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2.3 Dimensions - [RTGS199N1 / RTGS199X1]

27 .6"

[7 00

m m

]

4.0 " [

10 1m

m] 6.9" [175mm]

4.6" [117mm]5.8" [148mm]

14 .9"

[3 78

m m

]

4.3 " [

10 9m

m ]

3.0" [75mm]

8.2" [208mm]

17.3" [440mm] 2.5" [65mm] 6.1" [155mm]

A

C

D

E F

G

B

Description Size

A Exhaust 2" PVC

B Air Intake 2" PVC

C Gas 3/4" NPT

D Condensate 1/2" NPT

E Hot Water Connection 3/4" NPT

F Cold Water Connection 3/4" NPT

G Cold Water Filter -

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2.4 Names of Components [RTGS199N1 / RTGS199X1]

# Name of Component

1 Vent Pipe Collar

2 Combustion Air Intake Assembly

3 Ignition Transformer

4 Igniter

5 Flame Detection Sensor

6 High Limit Switch

7 Sight Glass

8 Terminal Port

9 Water Mixing Valve

10 Main Controller

11 Water Leak Detector

12 Gas Inlet

13 Domestic Hot Water (DHW) Outlet

14 Condensate Trap Cleanout

# Name of Component

15 Cold Water Inlet

16 Cold Water Filter

17 Condensate Trap

18 Water Adjustment Valve

19 Control Panel

20 Manual Power Switch

21 Secondary Heat Exchanger

22 Primary Heat Exchanger

23 Gas Valve

24 Air Gas Mixture (AGM) Actuator

25 Blower

26 Air Intake Filter

27 Air Intake Collar

1

2

3

4

5

6

8

9

10

11 17

18

20

21

22

23

25

27

26

24

19

12 13 14 15 16

7

Infiniti GS Series Tankless Water Heater

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SECTION 3 Safety Regulations 3.1 Safety Symbols

WARNING WARNING To avoid product damage, personal injury, or even possible death, carefully read, understand, and follow all the instructions in the Installation and Operation manual before installation, operation and service the Water Heater.

Every circ*mstance that may involve a potential hazard cannot be anticipated. Therefore, all possible incidents are not included in our warnings. Proper installation, operation, and service are your responsibility. You must make sure that the operation and settings of the Water Heater are safe for you and for others.

This manual provides Safety Symbols. When the user fails to adhere to the following requirement, it may cause death, serious injury, and substantial property damage.

For safety symbols, DANGER, WARNING, CAUTION are indicated and the definitions for these terms are as follow:

DANGER

Indicates an imminently hazardous situation which, if not avoided, will result in death or serious injury. This signal word is limited to the most extreme situations.

WARNING

Indicates a potentially hazardous situation which, if not avoided, could result in death or serious injury.

WARNING Cancer and Reproductive Harm. www.P65WARNINGS.CA.GOV. as required by the state of California Proposition 65.

CAUTION

Indicates a potentially hazardous situation which, if not avoided, may result in minor or moderate injury. It is also used to alert against unsafe practices and hazards involving only property damage.

FOR YOUR SAFETY READ BEFORE OPERATING

If you do not follow these instructions exactly, a fire or explosion could result causing property dam- age, personal injury or loss of life.

A. This appliance does not have a pilot. It is equipped with an ignition device which automatically lights the burner. Do not try to light the burner by hand.

B. BEFORE OPERATING smell all around the appliance area for gas. Be sure to smell next to the floor because some gas is heavier than air and will settle on the floor.

WHAT TO DO IF YOU SMELL GAS

Do not try to light any appliance. Do not touch any electric switch; do not use any

phone in your building. Immediately call your gas supplier from a

neighbors phone. Follow the gas suppliers instructions.

If you cannot reach your gas supplier, call the fire department.

C. Use only your hand to push in or turn the gas control knob. Never use tools. If the knob will not push in or turn by hand, dont try to repair it, call a qualified service technician. Force or attempted repair may result in a fire or explosion.

D. Do not use this appliance if any part has been under water. Immediately call a qualified service technician to inspect the appliance and to replace any part of the control system and any gas control which has been under water.

This appliance must be installed in accordance with local codes if any; if not, follow ANSI Z224.1/NFPA 54 or CAN/CSA B149.1, Natural Gas and Propane Installation Code, as applicable.

This appliance is certified for use at altitudes up to 2,000 ft (609m) without adjusting Altitude settings, accordance to the latest CSA/CGA 2.17-M91 Gas- Fired Appliances for Use at High Altitudes. Refer to Section 4.12 for High Altitude Settings, if installing above 2,000 ft (609m) up to a maximum of 10,000 ft (3,044m).

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DANGER

Vapors from flammable liquids will explode and catch on fire. These will cause death or severe burns.

Do not use or store flammable products such as gasoline, solvents or adhesives in the same room or area near the appliance.

Keep flammable products

Far away from water heater In approved containers Tightly closed Out of childrens reach

Vapors

Cannot be seen are heavier than air spread on the floor Can spread from other rooms to the main burner by air currents

Do not install the appliance where flammable products will be stored. Read and follow water heater warnings and instructions thoroughly. If owners manual is missing, contact the retailer or manufacturer.

The water heater must be installed by a qualified plumber, a licensed gas fitter, and/or a professional service technician. Improper installation and/or operation will cause a potentially hazardous situation, such as serious injury or death. Also, it will void the warranty.

The National Fuel Gas Code NFPA 54 / ANSI Z224.1 National Electric Code ANSI/NEPA 70 All applicable local, state, national and provincial

codes, regulations and laws.

Proper care is your responsibility. Carefully read and understand the Operating Information in this manual before operating the water heater.

Be aware of the location of the gas shut-off valve and operation method. Close the gas shut-off valve immediately if the appliance is subjected to fire, overheating, flood, physical damage, or any other

damaging condition that might affect the operation of the unit. water heater must be checked by a qualified technician before resuming operation.

DO NOT use this water heater if any part has been under water. Immediately call a qualified technician for inspecting the water heater and replacing any part of the control system and gas control which have been under water.

DO NOT power up the unit until the gas and water supply valves are fully opened. Make sure that the fresh air intake port and exhaust gas port are opened and functional.

DO NOT attempt to install, repair, or service this Water Heater by yourself. Do not change any part of the water heater. Contact a qualified technician if the Water Heater needs repair or maintenance. Ask your gas supplier for a list of qualified service providers.

DO NOT use spray paint, hair spray, or any other flammable spray near Water Heater or near the exterior fresh air inlet port. DO NOT place any items in or around the exterior exhaust gas outlet port and/ or fresh air inlet port. These could restrict or block the flow in or out of the vent system.

Caution: While repairing control, all wires are labeled. You must connect the wires in accordance with the instruction. Wiring errors can cause improper and dangerous operation.

Verify proper operation after servicing operation.

This consists of the gas ignition system components which are protected from water (dripping, spraying, rain, etc.) during operation and service (circulator replacement, condensate trap, control replacement, etc.).

After installing the heater, safety device must be tested.

This water heater is equipped with a blocked vent shutoff system.

Infiniti GS Series Tankless Water Heater

Page 10

Before Operation

1. Check the Gas Type (NG/LP) When moving the unit or setting it up for the first time, confirm that the supplied gas type (natural gas or propane) matches the configuration of the water heater. The gas type of the water heater is indicated on the rating plate found on its side.

2. Check the Power (120V 60Hz) Check that the appliance is connected properly.

3. Check the Cold Water Inlet valve. The water heater water inlet valve must be open at all times. The water heater will not ignite when insufficient water is available at the inlet.

4. Check the Gas Valve Check that the manual gas shut-off valve that supplies the water heater is opened.

5. Check for a gas leak at the gas connection portion with soapy water.

6. Check the area around the appliance and remove any combustible or flammable materials per the installation manual. Remove laundry or any other items that are on or near the water heater or exhaust vent.

7. Check Combustion Air. Check the combustion air vent system and ensure it is installed per the installation manual.

When in Operation CAUTION

1. Caution for Ventilation Ensure that there is unobstructed and sufficient inflow and outflow combustion air for the water heater. If the ventilation is improper, combustion quality may deteriorate inside the appliance and cause shortened life of the appliance.

3.2 Safety Precautions and Proper Use

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Page 11

WARNING Do not use the appliance for any other purpose than for domestic water heating. Do not store combustibles or flammable material such as gasoline near the appliance. Do not store other items on or near this water heater. Do not store combustible (flammable) materials such as papers. Do not hang clothes on the exhaust stack. This may start a fire.

Gas leakage test. Gas supply line must be inspected periodically.

Do not shut off the Water Heater. When you leave home for a extended periods, do not shut off the water heater. The water heater has a freeze protection function. The ceramic heater is installed inside of the heaters internal pipe to protect the heater from freezing.

Do not wipe the appliance or control panel with wet cloth, or internal parts may fail due to the exposure to moisture.

Do not disassemble the water heater. If repair is required, call your local qualified technician.

CAUTION

Scalding Risk: The use of an anti-scald mixing valve at the hot water outlet (water heater location) can reduce potential for scalding. Contact Manufacturer for recommended models. Check with local codes.

__________________________________________

DANGER

DANGER

Exhaust gas must be vented to the outside using approved vent material. See section 4.4 Exhaust venting for proper approved vent materials and practices. Vent and combustion air piping must be sealed gas-tight to prevent flue gas spillage, carbon monoxide emissions resulting in personal injury or death.

If you detect a gas leak during installation, shut off the gas and ventilate the room(open windows, doors). Tighten appropriate fittings to stop leak. Turn the gas on and check again with a gas leak detection solution. Never test for gas leaks using a match or flame.

Carbon Monoxide Poisoning.

Infiniti GS Series Tankless Water Heater

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SECTION 4 Installation

4.1 Location and Clearances

The water heater must be mounted to a suitable wall by a qualified heating contractor per the provided instructions. The wall may be of concrete or wood. Suitable fasteners for concrete or wood must be used. Failure to wall mount this water heater using correct fasteners will affect the performance and life expectancy of the water heater and will void the warranty.

Table 1. Minimum Clearances

Installations must comply with All the local, state, provincial, and national codes,

laws, regulations and ordinances. National Fuel Gas Code, ANSI Z224.1 The latest

version. National Electrical Code. A National Standard of Canada CAN/CSA-B149.1-05

Check before placing the Water Heater Always check the connected components which are

near to the heater. The components are below.

Water piping position / Venting adapter / Gas supply piping / Electrical power / Condensate drain hose. Check the area around Water Heater. Remove any

combustible materials, gasoline and other flammable liquids. Failure to keep the Water Heater area clear and free of combustible materials, gasoline and other flammable liquids and vapors can result in severe personal injury, death or substantial property damage.

The Water Heater which has gas control system components must be protected from any possible damage during operation and service.

If new Water Heater replaces the existing appliance, check and correct system problems.

Provide clearances as outlined in Table 1

As for vent connector and hot water pipe from combustible construction, please consult with a qualified technician.

If the heater was installed in a narrow space or corner, please ensure that there is sufficient space for service and maintenance access. For regular maintenance, there should not be any problem to approach gas and water line.

The water heater must be installed on a wall that can bear its weight.

WARNING

WARNING CLEARANCES FOR SERVICE ACCESS The water heater must be installed on a wall that

can bear its weight. Adequate service clearance must be considered.

The water heater can be installed on any suitable internal wall (sound proofing may be required when installing onto a stud partition wall).

Minimum clearances to Combustibles.

to Combustibles and for Service.

For installation from Non-Combustibles and

Combustibles

Suggested Service

Clearance TOP 10 in (25 cm) 18 in (46 cm)

BACK 1 in (2.5 cm) 1 in (2.5 cm) FRONT 4 in (10 cm) 40 in (101 cm)

SIDE 4 in (10 cm) 8 in (20 cm) BOTTOM 10 in (25 cm) 24 in (61 cm)

NOTE: For Cascading Installations, please refer to the cascading kit instructions, available online.

10 in 25 cm

4 in 10 cm

4 in 10 cm

4 in 10 cm

10 in 25 cm

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4.2 Wall Mount Bracket

4.2.1 The installation height and location

The installation height depends on your installation scenario. With all clearances considered, and given adequate positioning for air supply and venting, you will need to determine the best position to mount the Wall Mount Bracket. The wall must be concrete, wood, or plywood over studs, and must be strong enough to hold the water heater!

Start by familiarizing yourself to how the included Wall Mount Bracket hooks underneath the two Hangers that are attached to the back of the water heater. The hooks of the Wall Mount Bracket will be 3" (76.2 cm) from the Top of the water heater once the water heater is hung.

If mounting to a concrete wall, then use the concrete anchors. If onto wood or 5/8" (16 mm) plywood, then use the wood screws. Do not hang the water heater onto unsupported sheetrock, unless it is possible to fasten to the structural studs. If the included anchors do not suit your installation, you must use Field Supplied anchors that are appropriate for the walls construction.

Wall Mount Bracket

Bolts (4) Wall Mount

Bracket

Anchors (4)

3" to Top of Unit

Concrete, Wood, or 5/8" Plywood

4.2.2 Hang the Water Heater Lift the water heater up, align the Hangers on the back of the water heater with the hooks on the Wall Mount Bracket, and hang the water heater onto the Wall Mount Bracket. Do a visual inspection to make sure that the water heater is hanging properly onto the hooks of the Wall Mount Bracket. Fasten the bottom of the water heater to the wall using 2 suitable wall anchors (field supplied).

Hangers (2) (fastened to the back of unit)

Infiniti GS Series Tankless Water Heater

Page 14

Table 2. Required Combustion Air Pipe Material.

SECTION 4. Installation (continued)

4.3 Combustion Air GS Series water heaters must have provisions for combustion and ventilation air in accordance with the applicable requirements for Combustion Air Supply and Ventilation in the National Fuel Gas Code, ANSI Z223 1; or in Canada, the Natural Gas and Propane Installation Code, CSA B149.1. All applicable provisions of local building codes must also be adhered to. An GS Series unit can take combustion air from the space in which it is installed, or the combustion air can be ducted directly to the unit. Ventilation air must be provided in either case.

4.3.1 Combustion Air from Room In the United States, the most common requirements specify that the space shall communicate with the outdoors in accordance with method 1 or 2, which follow. Where ducts are used, they shall be of the same cross-sectional area as the free area of the openings to which they connect. Method 1: Two permanent openings, one commencing within 12" (300mm) of the top and one commencing within 12" (300mm) of the bottom, of the enclosure shall be provided. The openings shall communicate directly, or by ducts, with the outdoors or spaces that freely communicate with the outdoors. When directly communicating with the outdoors, or when communicating to the outdoors through vertical ducts, each opening shall have a minimum free area of 1 square inch per 4000 Btu/hr (550 square mm/kW) of total input rating of all equipment in the enclosure. When communicating to the outdoors through horizontal ducts, each opening shall have a minimum free area of not less than 1 square inch per 2000 Btu/ hr (1100 square mm/kW) of total input rating of all equipment in the enclosure. Method 2: One permanent opening, commencing within 12" (300mm) of the top of the enclosure, shall be permitted. The opening shall directly communicate with the outdoors or shall communicate through a

vertical or horizontal duct to the outdoors or spaces that directly communicate with the outdoors and shall have a minimum free area of 1 square inch per 3000 Btu/hr (734 square mm/kW) of the total input rating of all equipment located in the enclosure. This opening must not be less than the sum of the areas of all vent connectors in the confined space. Other methods of introducing combustion and ventilation air are acceptable, providing they conform to the requirements in the applicable codes listed above. In Canada, consult local building and safety codes or, in absence of such requirements, follow CAN/CGA B149.

4.3.2 Ducted Combustion Air The combustion air can be taken through the wall, or through the roof. When taken from the wall, it must be taken from out-of-doors by means of the horizontal wall terminal. When taken from the roof, a field- supplied rain cap or an elbow arrangement must be used to prevent entry of rain water. As allowed by local codes use ABS, PVC, CPVC, Polypropylene for the Combustion air intake. Route the intake to the water heater as directly as possible. Seal all joints. Provide adequate hangers. The unit must not support the weight of the combustion air intake pipe. Maximum linear pipe length allowed is shown in Table 6. Subtract 5 allowable linear ft. (1.5m) for every elbow used. The connection for the intake air pipe is at the top of the unit. In addition to air needed for combustion, air shall also be supplied for ventilation, including air required for comfort and proper working conditions for personnel.

MATERIAL UNITED STATES CANADA ABS ANSI/ASTM D1527

Air pipe material must be chosen CPVC, sch 40, ANSI/ASTM, Polypropylene based upon the intended application of the

water heater.

PVC, sch 40 Polypropylene ANSI/ASTM D1785/1738 or D2665

CPVC, sch 40 Polypropylene ANSI/ASTM F441 UL1738, ULC S636.

Single wall galv. steel 26 gauge

COMBUSTION AIR INSTALLATION STANDARDS

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Page 15

NOTICE The instructions for the installation of the venting system shall specify that the horizontal portions of the venting system shall be supported to prevent sagging; the methods of and intervals for support shall be specified. These instructions shall also specify that the venting system: Category IV water heaters must be installed so that horizontal sections have a slope of at least inch per foot (21mm/m) to the appliance to prevent accumulation of condensate; and For Category IV water heaters, where necessary, have means provided for drainage of condensate.

AVIS Les instructions d'installation du systme d'vacuation doivent prciser que les sections horizontales doivent tre supportes pour prvenir le flchissem*nt. Les mthodes et les intervalles de support doivent tre spcifis. Les instructions doivent aussi indiquer les renseignements suivants:

les chaudires de catgories IV doivent prsenter des tronons horizontaux dont la pente montante est d'au moins po par pied (21 mm/m) entre la chaudire et l'vent; les chaudires de catgories IV doivent tre installes de faon empcher l'accumulation de condensat; et si ncessaire, les chaudires de catgories II et IV doivent tre pourvues de dispositifs d'vacuation du condensat. The GS Series comes from the factory set

to use either Natural gas or Propane. Confirm the installation gas type matches the gas type on the rating plate.

Adequate drainage The appliance should be installed not to damage

the adjacent area. If such locations cannot be avoided, it is recommended that a suitable drain pan, adequately drained, be installed under the appliance. The pan must not block combustion air flow.

Connecting the Water Supply To conserve water and energy, insulate all water

pipingespecially the hot and recirculation water lines. Never cover the drain or pressure relief valve. Having a backflow preventer in the cold water supply line means that it prevent from thermal expansion backflow. Contact the water supplier or local plumbing inspector for information about how to control this situation. If overheating occurs or the gas supply fails to shut off, turn off the manual gas valve and check the installation.

This installation must conform with below section "Air for Combustion and Ventilation" of the

National Fuel Gas Code, ANSI Z224.1/NFPA 54, or Sections 8.2, 8.3 or 8.4 of Natural Gas and Propane Installation Code, CAN/CSA B149.1, or applicable provisions of the local building codes.

CAUTION

4.4 Venting (Exhaust)

The flue temperature of the water heater changes dramatically with changes in operating water temperature. If the water heater is installed in an application where the set point is greater than 140F(60C), ambient temperature is elevated, and/or installed in a closet/alcove, CPVC, polypropylene, or stainless steel material is required. If the system temperatures are unknown at the time of installation, stainless, polypropylene or CPVC material is recommended. The GS Series is a Category IV appliance and may be installed with PVC, CPVC or polypropylene that complies with ULC-S636, ANSI/ASTM D1785 F441 (see Table 3) or a PVC or stainless steel venting system that complies with UL 1738.

INSTALLATIONS IN CANADA require the use of venting material certified to ULCS636. All Gas vents connected to the water heater, plastic, stainless steel or otherwise must be certified to this ULC standard. Appropriate selection of vent material is very important for proper performance and safe operation of the water heater. The flue temperature of the water heater changes dramatically with changes in operating water temperature. Therefore, it is necessary to assess the application of the water heater to determine the required certified vent class. If the water heater is installed in an application where the

Infiniti GS Series Tankless Water Heater

Page 16

NOTICE DO NOT COMMON VENT GS UNITS WITH ANY OTHER APPLIANCE. GS Series units are never permitted to share a vent with Category I appliances.

AVIS NE PAS METTRE EN COMMUN LES UNITS GS AVEC UN AUTRE APPAREIL. GS Series units ne sont jamais autoriss partager un vent Catgorie I avec les appareils.

outlet water temperature exceeds 145F, and/ or installed in a closet, class IIB or higher vent material is required. If the system temperatures are unknown at the time of installation, class IIB or higher venting material is recommended. IN CANADA all venting used must meet the following requirements: 1. ULC-S636 certified and marked 2. The first 3 feet of venting must be accessible

for visual inspection. 3. All components used in the vent system must

be from a certified manufacturer. 4 . Vent system components must not be mixed

with alternate manufacturers certified components and/or unlisted components.

5 . The venting must be installed according to the vent manufacturers installation instructions.

The units vent can terminate through the roof, or through an outside wall. Vent pipe must pitch upward, toward the vent terminal, not less than 1/4" per foot, so that condensate will run back to the water heater to drain. Route vent pipe to the heater as directly as possible. Seal all joints and provide adequate hangers as required in the venting system manufacturers Installation Instructions. Horizontal portions of the venting system must be supported to prevent sagging and may not have any low sections that could trap condensate. The unit must not support the weight of the vent pipe.

Setting the Vent type. 1. Turn OFF the Power to the Display Control 2. Then, with the power OFF. Press and HOLD the button to get into the Installer Mode.

WARNING Use of cellular core PVC (ASTM F891), cellular core CPVC, or Radel (polyphenolsulfone) in venting systems shall be prohibited.

WARNING Failure to use the appropriate vent material, installation techniques, glues/sealants could lead to vent failure causing property damage, personal injury or death.

WARNING All venting must be installed according to this manual and any other applicable local codes, including but not limited to, ANSI Z224.1/NFPA 54, CSA B149.1, CSAB149.2 and ULC-S636. Failure to follow this manual and applicable codes may lead to property damage, severe injury, or death.

NOTE: For Cascading Installations, please refer to the cascading kit instructions, available online.

Table 3. Required Exhaust Vent Material.

MATERIAL UNITED STATES CANADA PVC, sch 40 ANSI/ASTM D1785 Venting must be ULC-S636 certified for use as

venting material. The venting material must be chosen

based upon the intended application of the water heater. CPVC, sch 40 ANSI/ASTM F441 Polypropylene UL1738 or ULC-S636

Stainless Steel AL29-4C Certified for Category IV and direct vent appliance venting

VENTING INSTALLATION STANDARDS

Bradford White Corporation

3. Rotate the Dial until you get to 16:Vt Tap the Dial to enter into that Parameter.

II ill1ll CD

II 8@:dJ

;;:\ IG H C) n

4. Turn the Dial to select either PVC or CPVC.

11111 IIJ ?[6(

High Hot Water Temperature Range

Item Vent Type Setpoint Range( F)

PVC 95 ~ 140 (Standard Temperature Vent) 16:Vt

CPVC, Polypropylene, Stainless 95 ~ 180 Steel (High Temperature Vent)

5. If you have CPVC, Polypropylene, stainless steel or other high temp vent material, set to CPVC and then you can also set to hot water range at 125 F~180 F. If you are not positive as to the type of venting, leave it at the default setting of PVC.

6. Finish by pressing the button. If you have changed the setting, complete the

label and attach it to the front cover.

Warning

This product had been installed with the venting material checked below.

Setting the temperature higher than 140F without the proper venting

material will cause severe damage.

Contractor - Company:

Installation Date:

Temperature setting converted to high temperature Yes n Vent Pipe Material: PVC CPVC Poly-Propylene D

4.4.1 Selecting Vent Pipe

1. Polypropylene vent

Non

The following polypropylene vent components are approved for use with this appliance: Duravent PolyPro SW (Rigid) (Certified to ULCS636) - 2PPS-xxx (2") or 3PPS-xxx (3")

Centrotherm lnnoflue SW (Rigid) (Certified to UL 1738 and ULCS636)

Page 17

- ISxx02xx (2") or ISxx03xx (3") Z-Flex Z-DENS SW (Rigid) (Certified to UL 1738 and ULCS636)

- 2ZDxx (2") or 3ZDxx (3")

2. Stainless steel vent

The following stainless steel vent components are approved for use with this appliance: Duravent FasNSeal (Rigid) (Certified to UL 1738 and ULCS636)

- FSA-PVC3 (3" PVC to FasNSeal Appliance Adapter) - FSxxxxx03 (3")

Z-Flex Z Vent - 2SVSTTA023 (2" x 3" Appliance Adapter) : 2SVEPSCF030X (Straight Pipe) - 2SVEEWCF0390 (90 Elbow) - 2SVEEWCF0345 (45 Elbow)

3. Vent termination kit

The following PVC vent terminations are approved for use with this appliance IPEX (Certified to ULCS636) - 2 in FGV Concentric Kit #196105 - 3 in FGV Concentric Kit #196106

IPEX (Certified to UL 1738) - 2 in FGV Concentric Kit #397105 - 3 in FGV Concentric Kit #397106

IPEX Low Profile Termination Kit (Certified to ULCS636) - 2 in Low Profile Vent Kit #196984 - 3 in Low Profile Vent Kit #196985

IPEX Low Profile Termination Kit (Certified to UL 1738) - 2 in Low Profile Vent Kit #397984 - 3 in Low Profile Vent Kit #397985

Royal Plastcic limbing Solutions - 2" GVS-65 Concentric Vent Termination Kit #52CVKGCS6502 - 3" GVS-65 Concentric Vent Termination Kit #52CVKGCS6503 - GVS-65 Side Wall Vent Termination Kit

#52SWVKGVS6502(2") The following polypropylene vent terminations are approved for use: Duravent PolyPro Horizontal Concentric Termination Kit (Certified to ULCS636)

- 2 in x 4 in Concentric Vent Kit #2PPS-HKC - 3 in x 5 in Concentric Vent Kit #3PPS-HKC

Infiniti GS Series Tankless Water Heater

Page 18

Centrotherm lnnoflue Low Profile Termination Kit (Certified to UL 1738 and ULCS636)

- 2 in Vent Kit #ISLPT0202

- 3 in Vent Kit #ISLPT0303

Centrotherm Concentric Vent Kit (Certified to UL 1738 and ULCS636)

- 2 in Vent Kit #ICWT242

- 3 in Vent Kit #ICWT352

Z-Flex Z DENS Horizontal Termination (Certified to UL 1738 and ULCS636)

- 2 in Vent Kit #2ZDHK2

- 3 in Vent Kit #2ZDHK3

Ecco Manufacturing (Certified to ULCS636)

- 2" PP Concentric Terminations Horizontal (Wall)

Terminations #190288

- 3" PP Concentric Terminations Horizontal (Wall)

Terminations #190388

The following polypropylene vent components can be used as terminations:

Duravent PolyPro (Certified to ULCS636) )

- 2PPS-E90L or 3PPS-E90L (2" or 3" 90 Elbow)

- 2PPS-E45L or 3PPS-E45L (2" or 3" 45 Elbow)

- 2PPS-TL or 3PPS-TL (2" or 3" Tee)

- 2PPS-BG or 3PPS-BG (2" or 3" Birdscreen)

Centrotherm lnnoflue (Certified to UL 1738 and ULCS636)

- ISELL0287 or ISELL0387 (2" or 3" 87 Elbow)

- ISELL0245 or ISELL0345 (2" or 3" 45 Elbow)

- IST02 or IST03 (2" or 3" Tee)

- IASPP02 or IASPP03 (2" or 3" Birdscreen)

Z-Flex Z-DENS (Certified to UL 1738 and ULCS636)

- 2ZDE_87 or 3ZDE_87 (2" or 3" 87 Elbow)

- 2ZDE_ 45 or 3ZDE_ 45 (2" or 3" 45 Elbow)

- 2ZDTT or 3ZDTT (2" or 3" Tee)

- 2ZDES or 3ZDES (2" or 3" Birdscreen)

The following stainless steel (AL29-4C) vent components can be used as terminations:

Duravent FasNSeal (Certified to UL 1738 and ULCS636)

- FSELB9003 (3" 90 Elbow)

- FSELB8803 (3" 88 Elbow)

- FSELB4503 (3" 45 Elbow)

- FST3 (3" Tee)

- FSBS3 (3" Birdscreen)

Z-Flex Z Vent (Certified to UL 1738 and ULCS636)

- 2SVEEWCF0390 (90 Elbow)

- 2SVEEWCF0345 (45 Elbow)

- 2SVSTTF03 (3" Tee)

4.5 General Location Guideline

1. Vent system installation must be in accordance with Local codes or, in the absence of local codes, the National Fuel Gas Code, ANSI Z224.1 /NFPA

54 and/or CSA B 149.1, Natural Gas and Propane Installation Code.

2. The Water Heater is designed to be installed as a

Direct Vent (sealed combustion) type. Be careful to avoid entering foreign substances

into the combustion air. Also, the flue gases must be vented directly to the outdoors (through wall or roof).

3. Do not install venting system components on the exterior of building except as specifically required by these instructions

- Vent terminals must be at least 1 foot from any door, window, or gravity inlet into the building.

- Maintain the correct clearance and orientation between the vent and air intake terminals. If the vent and air intake terminals must be at the same height, their center lines must be spaced apart 12" minimum.

- The bottom of the vent and air intake terminal must be at least 12" above the normal snow line. In no case should they be less than 12" above grade level.

- Do not install the vent terminal directly over windows or doors. - Air intake terminal must not terminate in areas that might

contain combustion air contaminates, such as near swimming pools.

- For sidewall venting, the minimum horizontal distance between any adjacent individual Module (Water Heater) vent terminations is twelve (12) inches. It is better to be far more

than 12 inches for avoiding frost damage to building surfaces

where vent terminations are placed. - The minimum horizontal distance between any adjacent

individual module (water heater) roof vent end piece is one (1) foot.

Bradford White Corporation

Page 19

4.6.1 Direct Venting Clearances

U.S. Installations (see note 1) Canadian Installations (see note 2) A= Clearance above grade, veranda, porch, 12 inches (30 cm) 12 inches (30 cm)

deck, or balcony See note 6 See note 6

B= Clearance to window or door that may be Direct vent only: 12 inches (30cm); 36 inches (91 cm) opened Other than Direct vent: 4 ft (1.2m) below or to NT 80 only - 12 inches (30 cm)

side of opening; 1 ft (30cm) above opening

C= Clearance to permanently closed window See note 4 See note 5

D= Vertical clearance to ventilated soffit located above the terminal within a horizontal See note 4 See note 5 distance of 2 feet (61cm) from the center line of the terminal

E= Clearance to unventilated soffit See note 4 See note 5

F= Clearance to outside corner See note 4 See note 5

G= Clearance to inside corner See note 4 See note 5

H= Clearance to each side of center line 3 feet (91 cm) within a height 15 feet extended above meter/regulator assembly See note 4 above the meter/regulator assembly

I= Clearance to service regulator vent outlet See note 4 3 feet (91 cm)

J= Clearance to nonmechanical air supply Direct vent only: 12" (30cm) 80-285; 36" (91cm) inlet to building or the combustion air inlet 399-850. Other than Direct vent: 4 ft (1.2m) below 36 inches (91 cm) to any other appliance or to side of opening; 1 ft (30cm) above opening NT 80 only - 12 inches (30 cm)

K= Clearance to a mechanical air supply inlet 3 feet (91 cm) above if within 10 feet (3 m) 6 feet (1.83 m) horizontally

L= Clearance above paved sidewalk or pavedVent termination not allowed in this location7 ft (2.1 m) driveway located on public propertyfor category IV appliances. See note 5

M= Clearance under veranda, porch, deck, See note 4 12 inches (30 cm) (see note 3) or balcony

Notes: 1. In accordance with the current ANSI Z223.1 / NFPA 54 National Fuel Gas Code. 2. In accordance with the current CAN/CSA-B149.1 Installation Codes. 3. Permitted only if veranda, porch, deck, or balcony is fully open on a minimum of two sides beneath the floor. 4. For clearances not specified in ANSI Z223.1 / NFPA 54, clearance is in accordance with local installation codes and the requirements of the gas supplier. 5. For clearances not specified in CAN/CSA-B149, clearance is in accordance with local installation codes and the requirements of the gas supplier. 6. IMPORTANT: Terminal must be placed such that it remains a minimum 12" above expected snow line. Local codes may have more

specific requirements, and must be consulted.

4.6 Locations for Vent Pipe Terminal

Table 4. Direct Vent Clearances

Bradford White Corporation

Page 20

Description US Non-Direct Canadian Non-Direct A Clearance above grade, veranda, porch, deck, or balcony 12 in (30 cm) 12 in (30 cm)

B Clearance to window or door that may be opening

48 in (120 cm) below or to side of opening; 12 in (30 cm) above opening

36 in (91 cm)

C Clearance to permanently closed window * *

D Vertical clearance to ventilated soffit located above the terminal within a horizontal distance of 2 feet from the center line of the terminal * *

E Clearance to unventilated soffit * *

F Clearance to outside corner * *

G Clearance to inside corner * *

H Clearance to each side of center line extended above meter / regulator assembly *

36 in (91 cm) within a height 15 ft (4.57 m) above the meter/ regulator assembly

I Clearance to service regulator vent outlet * 36 in (91 cm)

J Clearance to non-mechanical air supply inlet to building or the combustion air inlet to any other appliance

48 in (120 cm) below or to side of opening; 12 in (30 cm) above opening

36 in (91 cm)

K Clearance to a mechanical air supply inlet 36 in (91 cm) above if within 10 ft (3 m) horizontally

6 ft (1.83 m)

L Clearance above paved sidewalk or paved driveway located on public property * 7 ft (2.13 m)

M Clearance under veranda, porch, deck, or balcony * 12 in (30 cm)

4.6.2 Non-Direct Venting (Single Pipe) Clearances

Table 5. Non-Direct Vent Clearances

Infiniti GS Series Tankless Water Heater

Page 21

4.6.3 Venting Requirements in the Commonwealth of Massachusetts

In Massachusetts the following items are required if the side-wall exhaust vent termination is less than seven (7) feet above finished grade in the area of the venting, including but not limited to decks and porches. From Massachusetts Rules and regulations 248 CMR 5.08

1.Installation of Carbon Monoxide Detectors At the time of installation of the side wall vented gas fueled appliance, the installing plumber or gasfitter shall observe that a hard-wired carbon monoxide detector with an alarm battery back-up is installed on the floor level where the gas appliance is to be installed. In addition, the installing plumber or gasfitter shall observe that a battery operated or hard-wired carbon monoxide detector with an alarm is installed on each additional level of the dwelling, building or structure served by the side-wall horizontally vented gas fueled equipment. It shall be the responsibility of the property owner to secure the services of qualified licensed professionals for installation of hard-wired carbon monoxide detectors.

a. In the event that the side-wall horizontally vented gas fueled equipment is installed in a crawl space or an attic, the hard-wired carbon monoxide with alarm and battery back-up may be installed on the next adjacent floor level.

b. In the event that the requirements of the subdivision cannot be met at the time of completion of installation, the owner shall have a period of thirty (30) days to comply with the above requirements, provided, however, that during said thirty (30) day period, a battery operated carbon monoxide detector with an alarm be installed.

2. Approved Carbon Monoxide Detectors Each carbon monoxide detector shall comply with NFPA 720 and be ANSI/UL 2034 listed and IAS certified.

3. Signage. A metal or plastic identification plate shall be permanently mounted to the exterior of the building at a minimum height of eight (8) feet above grade directly in line with the exhaust vent terminal for horizontally vented gas fueled heating appliance or equipment. The sign shall read, in print no less than one-half (1/2) inch in size: GAS VENT DIRECTLY BELOW, KEEP CLEAR OF ALL OBSTRUCTIONS.

4. Inspection The state or local gas inspector of the side-wall horizontally vented gas fueled appliance shall not approve the installation unless, upon inspection, the inspector observes carbon monoxide detectors and signage installed in accordance with the provisions of 248 CMR 5.08(2)(a) 1-4.

Bradford White Corporation

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NOTICE At the time of removal of an existing water heater, the following steps shall be followed with each appliance remaining connected to the common venting system placed in operation, while the other appliances remaining connected to the common venting system are not in operation. 1. Seal any Not Used openings in the common venting

system. 2. Visually inspect the venting system for proper size and

horizontal pitch and determine there is no blockage or restriction, leakage, corrosion and other deficiencies which could cause an unsafe condition.

3. Insofar as is practical, close all building doors and windows and all doors between the space in which the appliances remaining connected to the common venting system are located and other spaces of the building. Turn on clothes dryers and any appliance not connected to the common venting system. Turn on any exhaust fans, such as range hoods and bathroom exhausts, so they will operate at maximum speed.

4. Place in operation the appliance being inspected. Follow the lighting instructions. Adjust thermostat so the appliance will operate continuously.

5. Operate the main burner for 5 minutes then, determine if the cut-draw overflows to the discharge opening. Use the flame of a match or a candle or the smoke of a cigarette, a cigar or a pipe

6. Once it has been determined, according to the method indicated above, that each device connected to the vent system is placed in the open air in an adequate manner. Install the doors and windows, fans, the registers of chimneys and gas appliances to their original position

7. Any malfunction of the venting system should be corrected so that the installation conforms to the National Fuel Gas Code, ANSI Z223.1/NFPA 54 and (or) the installation codes CAN/CSA-B149.1. If the size of a section of the evacuation system must be changed, the system should be modified to comply with the minimum values of the relevant tables of appendix F of the National Fuel Gas Code, ANSI Z223.1/ NFPA 54 and (or) the installation codes CAN/CSA-B149.1

4.6.4 Common Vent Test NOTE: This section does not describe a method for common venting the water heater units. It describes what must be done when an existing unit is removed from a common vent system.

AVIS Au moment du retrait d'une chaudire existante, les mesures suivantes doivent tre prises pour chaque appareil toujours raccord au systme d'vacuation commun et qui fonctionne alors que d'autres appareils toujours raccords au systme d'vacuation ne fonctionnent pas: 1. Sceller toutes les ouvertures non utilises du systme

d'vacuation. 2. Inspecter de faon visuelle le systme d'vacuation

pour dterminer la grosseur et l'inclinaison horizontale qui conviennent et s'assurer que le systme est exempt d'obstruction, d'tranglement, de fuite, de corrosion et autres dfaillances qui pourraient prsenter des risques.

3. Dans la mesure du possible, fermer toutes les portes et les fentres du btiment et toutes les portes entre l'espace o les appareils toujours raccords au systme d'vacuation sont installs et les autres espaces du btiment. Mettre en marche les scheuses, tous les appareils non raccords au systme d'vacuation commun et tous les ventilateurs d'extraction comme les hottes de cuisinire et les ventilateurs des salles de bain. S'assurer que ces ventilateurs fonctionnent la vitesse maximale. Ne pas faire fonctionner les ventilateurs d't. Fermer les registres des chemines.

4. Mettre l'appareil inspect en marche. Suivre les instructions d'allumage. Rgler le thermostat de faon que l'appareil fonctionne de faon continue.

5. Faire fonctionner le brleur principal pendant 5 min ensuite, dterminer si le coupe-tirage dborde l'ouverture de dcharge. Utiliser la flamme d'une allumette ou d'une chandelle ou la fume d'une cigarette, d'un cigare ou d'une pipe.

6. Une fois qu'il a t dtermin, selon la mthode indique ci-dessus, que chaque appareil raccord au systme d'vacuation est mis l'air libre de faon adquate. Remettre les portes et les fentres, les ventilateurs, les registres de chemines et les appareils au gaz leur position originale.

7. Tout mauvais fonctionnement du systme d'vacuation commun devrait tre corrig de faon que l'installation soit conforme au National Fuel Gas Code, ANSI Z223.1/NFPA 54 et (ou) aux codes d'installation CAN/CSA-B149.1. Si la grosseur d'une section du systme d'vacuation doit tre modifie, le systme devrait tre modifi pour respecter les valeurs minimales des tableaux pertinents de l'appendice F du National Fuel Gas Code, ANSI Z223.1/NFPA 54 et (ou) les codes d'installation CAN/CSA-B149.1

NOTICE DO NOT COMMON VENT GS UNITS WITH ANY OTHER APPLIANCE. GS Series units are never permitted to share a vent with Category I appliances.

AVIS NE PAS METTRE EN COMMUN LES UNITS GS AVEC UN AUTRE APPAREIL. GS Series units ne sont jamais autoriss partager un vent Catgorie I avec les appareils.

Infiniti GS Series Tankless Water Heater

Page 23

4.7 Air Supply and Vent Connections

Water Heater model

3" Combustion Air / Vent Pipe 2" Combustion Air / Vent Pipe Max Max

GS199 150 (45M) 60 (18M)

Table 6. Maximum Vent / Air Pipe Lengths for either 3" or 2" Pipes

4.7.1 Vent / Air Pipe Lengths

Note : For each elbow, reduce maximum allowable length 5 feet (1.5M) for each 3-inch 90-degree elbow 3 feet (0.9M) for each 3-inch 45-degree elbow 8 feet (2.4M) for each 2-inch 90-degree elbow 4 feet (1.2M) for each 2-inch 45-degree elbow Max 8 elbows for 3" vent, Max 5 elbows for 2" vent

4.7.2 Direct Venting The water heater uses 3" or 2" diameter exhaust and 3" or 2"diameter intake air ducts. To ensure the draw of air directly from and exhaust of air directly to the outside of the building, create an airtight seal from the water heater collar to the vent termination.

(For installations in Canada) field-supplied plastic vent piping must comply with CAN/CGA B149.1 (latest edition) and be certified by the Standard For Type BH Gas Venting Systems, ULC-S636. Components of this listed system must not be interchanged with other vent systems or unlisted pipes or fittings. All plastic components and specified primers and glues of the certified vent system must be from a single system manufacturer and must not be intermixed with another system manufacturers parts.

This water heater has a built-in control to limit the exhaust temperature.

Tightening Water Heater Collar (Socket) to Vent Pipe & Inlet Pipe Canada has adopted standard ULC S636 which requires the following additional items. The following steps for cement application are highlighted:

Clean and dry your selected PVC, CPVC vent pipe and Water Heater collar (socket). - You can select to the size of vent pipe (2" & 3"), according to the installation conditions. - Push the pipe into the collar (socket) until it touches the bottom of the socket fitting.

Bradford White Corporation

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Model GS199

Maximum Input (BTU/H) 199,000

Indoor make up air is provided, a minimum free

area of 1 in2 per 1,000 BTU/H

All Terminations:

4.7.3 Single Venting

Read and Follow Sections 4.3 Guidelines First.

1. Insert the termination end cap into the intake air duct.

2. Provide two openings to allow for circulation of combustion air as specified by ANSI Z224.1/NFPA 54 or CAN/CGA B-149.1:

4.8 Vent / Air Pipe Termination

Vertical Vent Termination Direct Vent - Vertical Terminations

with Sloped Roof

Vent Screens are required

After connecting terminals, install vent screens on both the vent and air inlet. Two 2" vent screens are included with each unit. Additional replacement screens are available for purchase from the manufacturer.

Infiniti GS Series Tankless Water Heater

199 in2

14 1/4" (W) x

14 1/4" (H)

Page 25

Horizontal Vent Termination Direct Vent - Sidewall Termination

SIDE VIEWFRONT VIEW

Exhaust Screen

12 MIN

1 MIN

Exhaust

Combustion Intake

Air Intake Screen

Exterior Wall

NOTE: Must be 12 Minimum distance

above highest anticipated snow level or grade, whichever

is greater.

NOTE: The Exhaust must be equal to or above the

Combustion Intake while at a Minimum of 12 apart.

12 MIN Apart

Exhaust 90o Elbow

Exhaust ScreenExhaustExhaust

12 MIN

1 MIN Sill

Combustion Intake

SIDE VIEWFRONT VIEW

Exterior Wall

Combustion Intake

NOTE: Must be 12 Minimum distance

above highest anticipated snow level or grade, whichever

is greater.

12 MIN

12 MIN

Exhaust Screen

Exhaust

12 MIN12 MIN 1 MIN Sill

Combustion Intake

Combustion Intake

SIDE VIEWFRONT VIEW

Air Intake Screen

90o Elbow

Exterior Wall

12

NOTE: Must be 12 Minimum distance

above highest anticipated snow level or grade, whichever

is greater.

Exhaust

MIN

A

B

C

Vent Screens are required

Vent Screens are required

Vent Screens are

required

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Page 26

Direct Vent - Optional Side wall Terminations

4. Concentric Vent Termination Direct Vent - Optional Horizontal and Vertical Concentric Vent

Strap 1" (25mm) to 4" (100mm)

Combustion Air

Vent

12 (30cm) Minimum clearance above highest anticipate

snow level.

Vent

12 Minimum clearance above highest anticipated

snow level or grade, whichever is greater.

12 Minimum clearance above highest anticipated

snow level or grade, whichever is greater.

Side Wall Kit (2 or 3)

Exterior Wall

Exhaust

Combustion Air

Concentric Vent Termination Direct Vent - Optional Horizontal

and Vertical Concentric Vent

Direct Vent - Optional Side wall Terminations

4. Concentric Vent Termination Direct Vent - Optional Horizontal and Vertical Concentric Vent

Strap 1" (25mm) to 4" (100mm)

Combustion Air

Vent

12 (30cm) Minimum clearance above highest anticipate

snow level.

Vent

12 Minimum clearance above highest anticipated

snow level or grade, whichever is greater.

12 Minimum clearance above highest anticipated

snow level or grade, whichever is greater.

Side Wall Kit (2 or 3)

Exterior Wall

Exhaust

Combustion Air

Direct Vent - Optional Side wall Terminations

4. Concentric Vent Termination Direct Vent - Optional Horizo tal and Vertical Concentric Vent

Strap 1" (25mm) to 4" (100mm)

Combustion Air

Vent

12 (30cm) Minimum clearance above highest anticipate

snow level.

Vent

12 Minimum clearance above highest anticipated

snow level or grade, whichever is greater.

12 Minimum clearance above highest anticipated

snow level or grade, whichever is greater.

Sid Wall Kit (2 or 3)

Exterior Wall

Exhaust

Combustion Air

Infiniti GS Series Tankless Water Heater

Page 27

WARNING: Open flame can cause gas to ignite and result in property damage, severe injury, or loss of life.

NOTE: The GS Series appliance and all other gas appliances sharing the gas supply line must be firing at maximum capacity to properly measure the inlet supply pressure. The pressure can be measured at the supply pressure port on the gas valve. Low gas pressure could be an indication of an undersized gas meter, undersized gas supply lines and/or an obstructed gas supply line.

SCHED 40 METAL PIPE CAPACITY FOR 1.50 SPECIFIC GRAVITY UNDILUTED PROPANE

NOMINAL PIPE SIZE @ 11" W.C. INLET AND 0.5" W.C. PRESSURE DROP

SIZE 1/2" 3/4" 1" LENGTH MAXIMUM CAPACITY IN THOUSANDS OF BTU PER HOUR

20 200 418 787 40 - 287 541 60 - 231 434 80 - 197 372

100 - 175 330 NOTES: 1. Follow all local and national propane gas codes for line sizing and equipment requirements. 2. Verify that inlet gas pressure remains between 4 and 13 inches of water column before and during operation. Source: ANSI Z223.1-80 National Fuel Gas Code.

Table 7. Nominal Pipe Size, Propane

Table 8. Nominal Pipe Size, Natural Gas

4.9 Gas Supply and Piping Gas piping should be supported by suitable hangers or floor stands, not the appliance. Review the following instructions before proceeding with the installation. 1. Verify that the appliance is fitted for the proper

type of gas by checking the rating plate. GS Series water heaters will function properly at elevations up to 10,000 feet (3050 m). Refer to Section 4.12 for High Altitude Settings.

2. Refer to Table 7, Table 8, and Table 9 for sizing piping.

3. For minimum and maximum gas supply pressures, see Table 10.

4. Run gas supply line in accordance with all applicable codes.

5. Locate and install manual shutoff valves in accordance with state and local requirements.

6. A sediment trap must be provided upstream of the gas controls.

7. All threaded joints should be coated with piping compound resistant to action of liquefied petroleum gas.

8. The appliance and its individual shutoff valve must be disconnected from the gas supply piping during any pressure testing of that system at test pressures in excess of 1/2 PSIG (3.45kPa).

9. The unit must be isolated from the gas supply system by closing its individual manual shutoff valve during any pressure testing of the gas supply piping system at test pressures equal to or less than 1/2 PSIG (3.45kPa).

10. The appliance and its gas connection must be leak tested before placing it in operation.

11. Purge all air from gas lines. 12. Note if using 1/2" Gas line a maximum of 24

equivalent feet is allowed.

EQUIVALENT LENGTHS OF STRAIGHT PIPE FOR TYPICAL SCH 40 FITTINGS

NOMINAL PIPE SIZE

FITTING 1/2" 3/4" 1" LINEAR FEET

90 ELBOW 3.6 4.4 5.2 TEE 4.2 5.3 6.6

Table 9. Equivalent Pipe Lengths

SCH 40 METAL PIPE CAPACITY FOR 0.60 SPECIFIC GRAVITY NATURAL GAS NOMINAL PIPE SIZE @ 0.30" W.C. PRESSURE DROP

SIZE 1/2" 3/4" 1" FT CUBIC FEET OF GAS PER HOUR

20 92 190 350 40 - 130 245 60 - 105 195 80 - 90 170

100

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Gas line close position Gas line open position

The gas connection fitting on the unit is 3/4" male NPT.

The supply line must be sized for the maximum output of the water heater model being installed. If there are additional gas appliances from the main supply line, you must measure sizes of the supply line according to the COMBINED total maximum BTU/Hr draw for the appliances as if they were all operating at the same time.

Measure the length of the gas supply line from the gas meter to the Water Heater. Use the tables in this manual or refer to the gas line manufacturers sizing information to determine the correct supply pipe size.

The gas shut-off valve in the gas supply line should be installed close to the unit.

To facilitate any future maintenance, it is also recommended that an approved gas union fitting be

installed in the supply line between the shut-off valve and the 3/4" male NPT connection on the Water Heater. 1) Install an approved gas line pipe to gas

line connection under the Water Heater. Include manual shut off valve and gas union connection, as shown.

2) Test gas pressure to make sure it meets the minimum standards and does not exceed the maximum standards for the water heater.

3) Leak test the gas line pipe before placing the unit in operation. Use approved leak detector liquid solutions only to check for leaks.

Do not operate the water heater until all connections have been completed and the heat exchanger is filled with water.

Water Heater MUST be installed downstream of the gas meter for adequate gas supply.

4.9 Gas Supply and Piping (continued)

Infiniti GS Series Tankless Water Heater

Page 29

Propane gas piping installation.

Natural Gas piping installation.

recommended to be the first appliance to

gas supply line.

Connection

Gas pipe size

Manual gas shut off valve

Gas meter

G Capacity : not less than 'total capacity of connected appliances'

Other appliance

Sediment Trap

The Water Heater is

be connected to the

recommended to be the first appliance to

gas supply line.

Connection

Gas pipe size

Manual gas shut off valve

Gas meter

G Capacity : not less than 'total capacity of connected appliances'

Other appliance

Sediment Trap

The Water Heater is

be connected to the

Full size gas pipe

LP GAS TANK

shut off valve

Gas Regulator (2 psi) Gas Regulator (supply press 12")

1/2" pipe

Sediment Trap

Other appliance

Manual Union

Union

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Manifold pressure port.

Offset Fire Adjustment Screw

Inlet Gas pressure port

4.10 Gas Supply Pressure Refer to the illustration. Check the gas inlet pressure measurement from inlet gas pressure port.(Loosen the port bolts before you check the gas inlet pressure.)

1. The appliance and its individual shutoff valve must be disconnected from the gas supply piping system during any pressure testing of that system at test pressures in excess of 1/2 psi (3.5 kPa).

2. The appliance must be isolated from the gas supply piping system by closing its individual manual shutoff valve during any pressure testing of the gas supply piping system at test pressures equal to or less than 1/2 psi (3.5 kPa).

Follow these steps. 1. Establish a call for water by opening a hot water

tap. 2. Set up your combustion analyzer and place the

sensor in the combustion test port. 3. Per Table 15 for Max fire, change dip switch 6 to

ON and 7 to OFF. The unit will cycle up to MAX fire. 4. Wait for your combustion analyzer to stabilize

(This may take up to 3 minutes depending on your analyzer). Then measure your CO2 for Max fire. Refer to Table 11 for acceptable MAX fire combustion readings. DO NOT ADJUST CO2 AT MAX FIRE, ONLY AT MIN FIRE.

5. Change dip switch 6 to OFF and 7 to

Natural Gas Propane

Maximum Pressure 10.5" WC Maximum Pressure 14.0" WC

Minimum Pressure 3.5" WC Minimum Pressure 8.0" WC

Table 10. Min and Max Inlet Gas Line Pressures

4.11 Gas Setup and Adjustment

Table 11. CO2 Values

Table 12. Manifold Pressures

WARNING

Installer may be required to to verify combustion settings as part of the installation process. CO should not exceed 200 PPM. Check local codes. Standard Factory Setting is for MIN Fire. 9.0% CO2 @ 0 - 2,000 ft altitude (Natural Gas).

Continue to next page.

CO2 Values Natural Gas (NG) Propane Gas (LP)

2" or 3" VENT 2" or 3" VENT

GS199 (all versions and

all altitudes)

MAX FIRE 8.5 - 10.5% 9.5 - 11%

MIN FIRE 8 - 10% 9 - 10.5%

Manifold Pressure

GS199 MIN FIRE +0.07" to +0.13" WC -0.02" to -0.08" WC

Infiniti GS Series Tankless Water Heater

type combustibility

type combustibility

Page 31

9:HA Choose the correct value from the following four options.

0 - 2 0 ~ 1,999 ft (0 - 609 m) 2 - 5 2,000 ~ 4,999 ft (610 - 1,523 m) 5 - 8 5,000 ~ 7,999 ft (1,524 - 2,438 m)

8 - 10 8,000 ~ 10,000 ft (2,439 - 3,048 m)

High Altitude settings (2,000 ~ 10,000 ft)

1. With the Power turned OFF, press the 'Modes button' for 5 seconds to get into the Installer Parameters Mode.

2. Turn the dial until 10:HA appears.

3. Press the dial.

4. Set the high altitude value by turning the dial. Refer to Table 13 for proper altitude setting.

5. Press the dial again to save the setting.

6. Press the Modes button for one second, to Save the number and to go back to initial status.

4.12 Gas High Altitude Setting (no adjustment is needed below 2000 feet)

The GS Series has been set up at the factory for altitudes of less than 2,000 ft, but it may be installed at elevations up to 10,000 ft for use with Natural Gas or Propane. If the installation is at an altitude of greater than 2,000 ft, then altitude settings need to be adjusted in the Installer Mode as describe below. NOTE: Above 2,000 ft (610 m), the water heater will de-rate by 2-4% for each 1,000 ft (305 m) of altitude gain.

ON. The unit will cycle down to MIN fire. 6. Wait for your combustion analyzer to stabilize. Then

measure the CO2 for MIN fire. Refer to Table 11 for acceptable MIN fire combustion readings.

7. If needed, open the gas valve adjustment port by removing the cap screw with a T15 Torx wrench

8. Use the Torx wrench to make a minor adjustments; 1/8 of a turn clockwise to increase or 1/8 of a turn counterclockwise to decrease CO2.

9. It may be necessary to go back and forth between

MAX fire and MIN fire several times (making adjustments only at MIN fire) before CO2 levels are acceptable. Be sure to put the adjustment port cap screw back into the valve when done.

10. Once the CO2 and manifold pressure measurements for MIN fire are acceptable per Table 12, set dip switches 6 and 7 to the OFF position for nominal fire (normal operation).

Table 13. Altitude Settings

10 : HA

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4.13 Plumbing Guidelines. - Ensure pipe material is suitable for the local codes and industry standards. - The pipe must be cleaned and without any debris. - Do not apply torch heat within 12" of the bottom connections of the unit. - The size of the hot water pipe should be 3/4" diameter. - Isolation valves(Shutoff valve) will be used. - All piping should be insulated.

Applicable Backflow Preventer - Apply a backflow preventer valve in the

make-up water supply (water Inlet) to the unit as required by local codes.

Use the MINIMUM pipe size for all Water Heater loop piping Domestic hot water pipe minimum size: 3/4"

CAUTION

Water Quality Potable water is defined as drinkable water supplied from a utility or from a well, in compliance with EPA secondary maximum contaminant levels (40 CFR Part 143.3) as shown in Table 14. Water quality must be within these maximum allowable parameters. If your water contains contaminants in quantities greater than outlined by EPA, then water treatment is required and additional maintenance may also be required. If you suspect that your water is contaminated in any way, discontinue use of the appliance and contact a qualified technician.

Contaminant Maximum Allowable Level Contaminant Maximum Allowable Level Total Hardness 200 mg/l (12 grains/gallon) Manganese 0.05 mg/l Aluminum 0.05 to 0.2 mg/l pH 6.5 - 8.5 Chloride 250 mg/l Sulfate 205 mg/l Copper 1 mg/l Total Dissolved Solids (TDS) 500 mg/l Iron 0.3mg/l Zinc 205 mg/l

Table 14. Water Quality Specifications

CAUTION A pressure relief valve (PRV) must be installed immediately at water heater outlet with no valves between.

ATTENTION A soupape de surpression (PRV) doit tre install immdiatement sortie chaudire avec pas de vannes entre. _____________________________________

CAUTION

Scalding Risk: The use of an anti-scald mixing valve at the hot water outlet (water heater location) can reduce potential for scalding. Contact Manufacturer for recommended models. Check with local codes.

_______________________________

3/4" PIPE (COLD INLET)

3/4" PIPE (DHW OUTLET)

3/4" PIPE (GAS INLET )

Isolation valve

Backflow preventer

Pressure relief valve

Ball valve

Anti-scald rated mixing Valve (where required by local code)

Infiniti GS Series Tankless Water Heater

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4.14 Setting the Water Heater Mode

Setting Pulse Mode

1. Select Installer Mode 11:rC

3. Select the time (05 ~ 60)

2. Select PuLS

Pump operates every 60 minutes. Operation and stop time can be set in the display.

EX-1. If the operating time is selected as 05, it will repeat the 5-minute operation/55-minute standby.

EX-2. If the operating time is selected as 30, it will repeat the 30-minute operation/30-minute standby.

EX-3. If the operating time is selected as 60, it will operate continuously

11 : rC Component Remark

PuLS Pump Max switching voltage 120VAC, Rated current 2A

Installation guide

External Pump Mode (Recirculation Mode)

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Setting Title24, On Demand Mode

11 : rC Component Remark

tt24, OndE Pump, Push Button

(Non Locking) Max switching voltage 120VAC

Rated current 2A

1. Select Installer Mode 11:rC 2. Select tt24 or OndE

Pump will be operated if the button is pressed longer than 0.5 seconds. 1.If tt24 is selected, pump will be operated as per Californias Building Energy Standards - Title24 regulations.

2.If OndE is selected, warmer and more stable hot water can be circulated compared to tt24.

Installation guide

Infiniti GS Series Tankless Water Heater

Page 35

4.15 Air Handler Mode Setting Standard Mode

12:AH Component Remark

Std Mixing Valve No electrical connection

1. Select Installer Mode 12:AH 2. Select Std

Hot water will be supplied as Air Handler operates.

Installation guide

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Setting ECO Mode

12:AH Component Remark

ECO Mixing Valve, Flow Switch

1. Select Installer Mode 12:AH

3. Select Antl (Anti-Legionella)* on * Set the operation/stop time of anti-bacteria function

5. Select Antl oFF, select a value between 1 and 10 hours.

2. Select ECO

4. Select operation time(01 ~ 60 minutes)** **This will set how long the air handler pump runs each anti-bacteria/legionella cycle.

6. Select off time (01-10 hours). This will determine time between each Anti-legionella cycle. Check local codes for required frequency of anti-legionella cycles.

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1. Water heater receives signal from the Room Thermostat and it will control the Air Handler unless the flow switch detects domestic hot water priority. 2. This mode prevents simultaneous operation of DHW and heating to eliminate cold drafts during heating or lower water temperature during showers uses. 3. If no heating calls occur for extended periods, the pump will operate during the AntI on time for preventing bacteria in the heating pipe

Typical Air Handler installation.

Sequence of Operation

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Page 38

4.16 Disposal of Condensate High efficiency, gas condensing water heaters create condensation when operating. This condensation has an acidic pH of approximately 4-5. This should be considered when plumbing the condensate drain.

Condensate must be drained in accordance with all local regulations. Follow your local code with regards to the disposal of condensation.

One of 3 disposal methods must be followed 1. to floor drain 2. to neutralizer drain (optional kit * ) 3. to condensate pump (field supplied)

If a neutralizer is installed, periodic replacement of the lime stone (or neutralizing agent) will be required. The rate of depletion of the lime stone varies upon usage of the Water Heater. During the first year of operation, please check the neutralizer every few months for depletion.

Apply only corrosion-resistant materials for the condensate drain lines such as 1/2" PVC, CPVC, Polypropylene pipe.

NOTICE Category IV water heaters must be installed with a means provided for the drainage of condensate.

AVIS Catgorie IV chauffe-eau doit tre install avec une moyens prvus pour lvacuation des condensats.

CAUTION Condensate is mildly acidic (pH=5), and may harm some floor drains and/or pipes, particularly those that are metal. Ensure that the drain, drainpipe, and anything that will come in contact with the condensate can withstand the acidity, or neutralize the condensate before disposal. Damage caused by failure to install a neutralizer kit or to adequately treat condensate will not be the manufacturers responsibility. _________________________________________

Hot Water Pipe

Condensate Drain

Pressure Relief

Valve Drain

Cold Water Pipe

Gas Pipe

Infiniti GS Series Tankless Water Heater

Page 39

WARNING

This appliance must be electrically grounded per local codes. Ensure the electrical receptacle, in which the water heater will be plugged into, is properly grounded; if wiring directly. Do not attach the ground wire to the gas or the water piping as plastic pipe or dielectric unions may isolate the Water Heater electrically. The wiring diagrams contained in this manual are for reference purposes only. Refer to this diagram and the wiring diagram of any controls used with the Water Heater. Read, understand and follow all wiring instructions

Install wiring and electrically ground Water Heater in accordance with authority having jurisdiction or in the absence of such requirements follow the National Electrical Code, NFPA 70, and/or CSA C22.1 Electrical Code-Part 1 in Canada.

ELECTRICAL SHOCK HAZARD For your safety, turn off electrical power supply at service entrance panel before making any electrical connections to avoid possible electric shock hazard. Failure to do so can cause severe personal injury or death.

supplied with the controls. Do not disconnect the power supply when the unit is in normal operation. Damage caused by freezing is not covered under the warranty. Manual(Rocker) switch maximum allowable current for each circulator is 16 amps at 125VAC. ( Housing : Nylon #66 UL 94V-2 , Rocker : Nylon #66 UL 94V-2, Terminal : Copper Alloy )

4.17 Pressure Relief Valve

An approved Pressure Relief Valve must be installed in this installation. The Valve must be an approved ASME HV Relief Valve, installed on the DHW supply line for domestic hot water loop as close to the unit as possible. (Valve size 3/4", maximum 150psi).

WARNING

4.18 Electrical Wiring Connections

Hot Water Pipe

Condensate Drain

Pressure Relief

Valve Drain

Cold Water Pipe

Gas Pipe

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4.19 DIP Switches There is one set of DIP switches. DIP switches 6 and 7 must be set to OFF when operating the water heater normally.

Shown in its actual orientation in the unit.

Maximum flame detecting voltage 2.4V

Pre-purge time (Tp) Maximum 10s, minimum 1s

Safety Time (igniting time) (Ts) 3.5s

Igniting interval time <10s

Post-purge time (Tip) 60s

Over-heating 1,2,3 protection detection time <1s

Temperature sensor fault detection time <2s Number of trial for ignition (Ntl) 10

DHW water SET temperature range 95F ~ 140F (180F with High Temp Venting installed)

DHW water OFF temperature DHW target temperature + DHW differential temperature(27F)

DHW water ON temperature Below DHW target temperature +5F

DHW water ON minimum water flow 0.5 GPM (12Hz)

DHW water OFF minimum water flow 0.5 GPM (10Hz)

Table 15. Dip Switches

DIP Switch Function OFF ON

1-3 Machine power Do NOT Move.

4 Inlet DHW Flow Limiter ON OFF

5 Propane or Natural Gas LP NG

6 Max. Normal MAX Fire

7 Min. Normal MIN Fire

Table 16. System Control Settings

Infiniti GS Series Tankless Water Heater

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4.20 Wiring Diagram

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4.21 Ladder Diagram

Infiniti GS Series Tankless Water Heater

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4.22 Electrical Connections

Connector

Descriptions HT SELV no. of location and type Pin nr. Board Silk

CN9

1 GROUND -

2 L Power Supply Line

HT (120V~)

3 CP1 External Circulation Pump

4 IT Ignition Transformer 5 HEAT/CP2 Ceramic Heaters 6 GV Gas Valve 7 Unuse 8 N Power Supply Neutral

9-12 N AC Power COM Line

CN1

1

RS-485

RS485 +

SELV (5V) 2 RS485 - 3 Unuse 4 RS485 + 5 RS485 -

CN4

1

FAN

Unuse - 2 GROUND SELV (30V) 3 VDD SELV (14V) 4 Fan power(start coil)

SELV (30V) 5 Fan power(end coil) 6 Fan speed feedback signal SELV (14V)

CN8

1

MCU ISP

GND

SELV (5VDC) 2 ISP /Reset port 3 ISP TOOL0 Data port 4 VCC

CN11

1 HWL Unused -

8 2

LWL Water Leak Sensor SELV (12V) 10 3

HD Unused 11 4

TH Connect to the Display Control (Thermostat)

SELV (14VDC)

12 5

APS Exhaust Air Pressure Switch 13 6

EL Unused 14 7

BL Burner High Limit 15 8

HL Water Temperature High Limit 16

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Connector Description HT

SELVno. of location and type Pin nr. Board Silk

CN7

1,8 F.S Flame Sensor

SELV (5V)

2,9 OP.S Outlet Operating Water Temperature Sensor 3,10 DH.S DHW Temperature Sensor 4,11 I.S Inlet Water Temperature Sensor

5,12 BG.S Exhaust Water Temperature Sensor

6,13 ST.S Unused 7,14 SP.S Unused

CN12

1

AGM

AGM Stepper Motor Coil / Y Phase

SELV (24V)

2 3

AGM Stepper Motor Coil / Y Phase 4 5 GND 6 AGM Stepper Motor Position 7 VDD

CN10

1

DHM (Mixing Valve)

DHM Stepper motor coil /Y phase

SELV (14V)

2

3 DHM Stepper motor coil /X phase

4 5 GND 6 DHM Stepper motor position 7 VDD 8 VDD

CN14

1

IWM (Flow Control Valve)

GND

SELV (14V)

2 IWM Stepper motor position 3 VDD 4 IWM Stepper motor coil /X phase 5 IWM Stepper motor coil Y phase 6 VDD 7 IWM Stepper motor coil /X phase 8 IWM Stepper motor coil Y phase 9 Unused

CN3

1 Push Button Switch

VCC

SELV (5V)

2 Title 24 3 GND 4

FLUX1 VCC

5 Water Flow Sensor 6 GND

CN5 1

RPM Fan RPM Sensor

SELV (5V) 2 GND

CN15 1

FLUX2 Unused

2 DHW Priority Switch 3 GND

Infiniti GS Series Tankless Water Heater

Page 45

SECTION 5 Control Display and Operation

5.1 Control Dial and Buttons

Display Screen

Indicator (Green)

Hot Water Temperature Button

Temperature Unit Select Button Dial Button / Enter Power ON / OFF Button For turning the water heater ON / OFF.

Function Button

Buttons Functionalities

PRESS (Tap) PRESS and HOLD (5 seconds)

Power Turns Control Display ON / OFF N/A

Modes Tap to return to menu (If Display Power was On ) Status Display Mode (If Display Power was Off ) Installer Mode

Hot Water DHW Set-Point LOW Range 95 - 120F (35 - 49C)

DHW Set-Point HIGH Range 121-140F(49.5-60C)

>140F(60C) only accessible when using high temp vent see section 4.4.

Unit Toggle (C, Liter F, Gallon)

Scroll / Select Turn to scroll, tap to select (clockwise or counterclockwise N/A

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5.2 LCD Overview

The LCD will illuminate when a user action is detected (a button is pressed) and will turn back off after 20 seconds.

Domestic Hot Water Mode PCB-Display Connection Status

External Pump

Flame Signal

Status and Installer Modes

PCB-Display Connect. Status Indicates display and PCB communication is normal

Status and Installer mode The Status Mode or the Installer Mode is Active (all parameters)

Flame Signal Flame is detected

Numeric Display Number and character display, to display all parameters

DHW Mode Flow detected / set temperature change

External Pump External Pump on

Infiniti GS Series Tankless Water Heater

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5.3 Operating Mode

Operating Mode After the Power is turned on, and/or the Control Display is turned on , the Control Display will go through a Start Up checklist and briefly show a sequence of diagnostic codes before entering into the Operating Mode. It will then display the following information.

Indicate Example

Target DHW temperature

If the flow is present

If flame detected

Temperature sign Celsius or Fahrenheit letter

Main PCB to Display Connection State (If symbol is shown connection status is connected)

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5.4 Status Display Mode

To view any of the above listed Status Parameters, Press and Hold Button to get into the Status Display Mode.

Rotate Dial until you find the Parameter that you wish to view. Tap Dial to enter that Parameter.

Rotate the dial to view the parameter that you require and then press (tap) Dial to Exit.

Index Parameter Description

A:GA or A:LI Flow Current flow value(LI: L/m, GA: GPM)

b:Fr Fan RPM Current fan rpm value

C:oP Operation temperature Current Heat Exchanger Temperature

D:dH Domestic hot water temperature Current DHW temperature

E:Eh Exhaust temperature Current Exhaust temperature

F:In Inlet temperature Current Inlet temperature

G:rt

1:PH Power supply time Power Supply Time : 0000 hours

2:rh Burner operation time Burner Operating Time : 0000 hours

3:It Ignition attempts Ignition attempts number : 0000 cycles

4:CF Water Accumulated Accumulated : 0000 gallons

Infiniti GS Series Tankless Water Heater

Page 49

DHW Set Point Change Modes The display shows the following information when changing water heating temperature set points.

Hot Water Temperature Range (Setting the water temperature to >140F (60C) will convert the unit into a commercial unit and the commercial warranty will apply.)

Vent Type( )

Press the Button 95 ~ 120F (35 ~ 49C) 95 ~ 120F (35 ~ 49C)

Press and hold the Button 125 ~ 140F (51.5 ~ 60C) 125 ~ 180F (51.5 ~ 82C)

Indication Example

Target DHW temperature

When changing DHW set point, the DHW icon will flash

When DHW set-point range is high : from 125F (51.5C) to 180F (82.0C)

Temperature sign Celsius or Fahrenheit letter

If water heater display is communicating with the main Controller normally, the communication icon will be indicated.

5.5 DHW Set Point Change Mode

The GS Series has a built in water flow limiter and will automatically adjust the flow rate up or down based on outlet temperature at the inlet side of the water heater. If the temperature drops below the set point, and the water heater is at full fire, the inlet flow to the heat exchanger will be reduced. Therefore, the outlet temperature will begin to rise to the desired set point. If the temperature begins to rise above the set point the flow will increase until full flow is reached. This feature ensures that the outlet water is always the ideal temperature for the user. If this feature is not desired, then the over-ride to this feature must be turned ON.

1. Turn off the power to the Control Display. 2. Move DIP switch 4 to the OFF Position.

CAUTION Scalding Risk: The use of an anti-scald mixing valve at the hot water outlet (water heater location) can reduce potential for scalding. Contact Manufacturer for recommended models. Check with local codes.

* Default set-point is 120F (49C) Changing between Celsius and Fahrenheit. When the button is pressed (for more than 5 seconds), temperature unit will toggle between C and F.

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5.6 Installer Mode

Index Description Main Sub

1:EH E0:xx ~ E9:xx E0:xx - Latest error, E9:xx - Oldest Error

2:cE oFF(Default) No Reset

on Reset all error history

3:In oFF(Default) No Reset

on "Reset to Factory default except 4: AG, 5: FH and 6: FL"

4:AG Default: 0 "Adjust AGM plate location for min only (-50 ~ +50)"

5:FH Default : 0 "Adjust Blower pwm for High fire (-50 ~ +50)"

6:FL Default : 0 "Adjust Blower pwm for Low fire (-30 ~ +30)"

7:dr no( Default) No reset

YES Reset Burner run time

8:dl no( Default) No reset

YES Reset Ignition Cycling time

9:dF no( Default) No reset

YES Reset Total Water Usage

10:HA

0 - 2 0 ~ 2,000 ft (Sea Level)

2 - 5 2,000 ~ 5,000 ft

5 - 8 5,000 ~ 8,000 ft

8 - 10 8,000 ~ 10,000 ft

11:rC

oFF(Default) Deactivate Recirculation functions

PuLS Pulse circulation mode

tt24 Title24 circulation mode

OndE On demand circulation mode

Index Description Main Sub

12:AH

oFF Deactivate Air Handler functions

Std Standard Air handler mode

ECO Eco Air handler mode

13:cn Default :0

"Cascade : ID Setting 00 : Cascade Deactivated 01 : Cascade Leader unit setting 02 ~ 16 : Cascade Follower unit setting"

14:cl Default :1 Number of Cascade units open to flow demand

15:Eh on Cascade : Common vent

oFF Cascade : Individual vent

16:Vt PVC PVC vent

CPVC CPVC vent

to the

These changes are to be made only by a qualified technician.

To c hange any of the Installer Parameters, Start by turning OFF the Power Display Control. Then, with the power OFF, Press and HOLD (5 seconds) the Button to get into the Installer Mode. Rotate Dial until you find the Installer Parameter that you wish to change. Tap Dial to enter that Parameter. Adjust to the setting that you require and then press (tap) Dial to save and to Exit. Finish by pressing button

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5.7 Error Mode

Flashing

Indicate Example

Error Er . xx will flash

Main PCB to Display Connection State

NOTE: When communication between the Control Display and the main controller is lost, the will not be displayed.

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SECTION 6 Error Codes

Error Code Error Code Description Possible Remedies *Lockout

Type

10 Flame has been lost 8 (eight) times

Press the Power button to clear the Error Code. If Error happens again: 1. Monitor the gas pressure to the water heater while in operation. Ensure pressure is between 3.5 and and 10.5" WC for NG and between 8" WC and 14" WC for LP. 2. Check gas valve wire. Ensure connection is secure. 3. Check flame detection sensor. Ensure connections are secure. Normal operating Settings are more than 2.5 VDC before ignition, less than 2.5 VDC after ignition. 4. Check ignition transformer for proper connection. 5. Clean spark igniter with steel wool to remove oxides. Ensure separation of 0.12"-0.16" (3 - 4 mm). 6. Replace the spark igniter if damaged. 7. Ensure that the flame is stable when lit.

Hard Lock

11 Ignition has Failed 10 (Ten) Times

Press the Power button to clear the Error Code. If Error happens again: 1. Monitor the gas pressure to the water heater while in operation. Ensure gas pressure is between 3.5" WC and 10.5" WC for NG and between 8" WC and 14" WC for LP. 2. Check gas valve wire. Ensure connection is secure. 3. Check flame detection sensor. Ensure connections are secure. Normal operating settings are more than 2.5 VDC before ignition, less than 2.5 VDC after ignition. 4. Check ignition transformer for proper connection. 5. Clean the spark igniter with steel wool to remove oxides. Ensure separation of 0.12"-0.16" (3-4 mm). 6. Replace the spark igniter if damaged. 7. Assure that the flame is stable when lit.

Hard Lock

16

Operating Temperature Sensor or DHW Sensor detects Water Temperature Greater than 199F (93C)

This Error Code will clear when the DHW temperature decreases. If Error happens again: 1. Check if dip switch MAX Fire setting is ON. Switches 6 and 7 should be OFF for normal operation. 2. Check if DHW pipe is blocked. Ensure there is enough water flowing to the water heater. 3. Check DHW sensor at DHW outlet. If resistance is zero, replace the sensor. 4. Check Operating Temperature sensor at the heat exchanger. If resistance is zero, replace the sensor.

Soft Lock

20

High Limit Overheat Switch Closed is Normal, Open is Fault

Press the Power button to clear the Error Code. 1. Inspect the High Limit Overheat switch. Ensure proper connections. 2. Check High Limit Overheat switch. With the switch at room temperature measure the continuity.

Hard Lock

29 Condensate Trap Blocked

Press the power button to clear the error code. 1. Check condensate line and termination for blockages. 2. Check exhaust vent for blockage.

Hard Lock

31 Inlet Water Sensor Open or Short

This Error Code will clear when inlet water temperature reads correctly. If Error happens again: 1. Check inlet water temperature sensor. Ensure connections are secure. 2. Check sensor resistance. If resistance is zero, replace the sensor.

Soft Lock

32 DHW Sensor Open or Short

This Error Code will clear when outlet water temperature reads correctly. If Error happens again: 1. Check DHW outlet temperature sensor. Ensure connections are secure. 2. Check sensor resistance. If resistance is zero, replace the sensor.

Soft Lock

33 Operating Temperature Sensor Open or Short

This Error Code will clear when outlet water temperature reads correctly. If Error happens again: 1. Check operating temperature sensor. Ensure connections are secure. 2. Check sensor resistance. If resistance is zero, replace the sensor.

Soft Lock

35 Exhaust Sensor Open or Short

This Error Code will clear when exhaust temperature reads correctly. If Error happens again: 1. Check exhaust temperature sensor. Ensure connections are secure. 2. Check sensor resistance. If resistance is zero, replace the sensor. 3. Check exhaust vent for blockage.

Soft Lock

6.1 Error Codes

*Lockout Type : Hard lock: requires manual reset / Soft Lock: resets itself when issue subsides.

Infiniti GS Series Tankless Water Heater

Page 53

Error Code Error Code Description Possible Remedies *Lockout

Type

39 Flame Detected after Exiting a Flame On Condition

This Error Code will clear when the false flame condition is remedied. If Error occurs again: 1. Check the water heater cover. Ensure it is secure. Flame detection sensor can detect an external light source. 2. Check flame detection sensor. Ensure connections are secure. Normal operating settings are more than 2.5 VDC before ignition, less than 2.5 VDC after ignition.

Soft Lock

40

Gas Leakage is Detected in 10 Minutes, or three times within One Hour (Greater than 5 Seconds Each Time)

IMPORTANT: If you smell gas, STOP! Follow the instructions on page 8, this manual, and call a qualified service technician or the fuel gas utility. Press the Power button to clear the Error Code. If Error occurs again: 1. Check the water heater cover. Ensure it is secure. 2. Check gas connections for leakage with a soapy solution. Fix any leaks. 3. Check condition of the burner assembly.

Hard Lock

41 Fan Speed too High with Flame On

Press the Power button to clear the Error Code. If Error happens again: 1. Check the vent connections for blockages. 2. Check the burner assembly. 3. Check fan operation. If fan appears to be operating normally but RPMs are too low or too high, replace the fan.

Hard Lock

42 APS - Closed is Normal, Open is Fault

Press the Power button to clear the Error Code. 1. Check APS and main controller connections. Ensure all are secure. 2. Check APS resistance. If resistance is zero, replace the air pressure switch (APS). 3. Check APS hose. Ensure it is connected and in good condition. 4. Check exhaust vent for blockages.

Hard Lock

43 Burner Overheat Switch Open

Press the Power button to clear the Error Code. If Error happens again: 1. Check burner overheat switch connections. Ensure connections are secure. 2. Check the High Limit Overheat switch. With the switch at room temperature measure the continuity. 3. If the switch is not closed replace the switch.

Hard Lock

45 Water Leak Detection

If Error happens, the cold inlet water valve closes automatically to prevent water leak damage. 1. Turn power off to the water heater. 2. Valve off the water heater to isolate it from the system. 3. Call a qualified installer / service technician to diagnose and repair the source of the leak.

Hard Lock

61 Fan Speed Feedback Signal Abnormal

This Error Code will clear when the condition is remedied. If Error happens again: 1. Check the connections to the fan. Ensure all are secure. 2. If the fan does not rotate during ignition sequence, check for 26.5 VAC power at the fan connection. If 120 VAC power is present at the control, replace the blower. If the blower does not have 120VAC power, check power at the control. If 26.5 VAC power is not present at the control, replace the control.

Soft Lock

65 Supply Water Valve Error

Press the Power button to clear the Error Code. If Error happens again: 1. Turn power OFF and ON at the main power switch inside the water heater. 2. Check wiring connections to supply water valve. Ensure all are secure. 3. Replace supply water valve.

Hard Lock

66 Mixing Valve Error

Press the Power button to clear the Error Code. If Error happens again: 1. Turn power OFF and ON at the main power switch inside the water heater. 2. Check wiring connections to mixing valve. Ensure all are secure. 3. Replace mixing valve.

Hard Lock

6.1 Error Codes (continued)

*Lockout Type : Hard lock: requires manual reset / Soft Lock: resets itself when issue subsides.

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Error Code Error Code Description Possible Remedies *Lockout

Type

67 AGM Error

Press the Power button to clear the Error Code. If Error happens again: 1. Turn power OFF and ON at the main power switch inside the water heater. 2. Ensure fan inlet hole is completely open after turning the power OFF and ON. 3. Check wiring connections to the AGM. Ensure all are secure. 4. Check AGM operation. 5. Replace AGM components.

Hard Lock

72 Flame Signal Detected before Ignition

This Error Code will clear when the condition is remedied. If Error happens again: 1. Check the water heater cover. Ensure it is secure. Flame detection sensor can detect an external light source. 2. Check flame detection sensor. Ensure connections are secure. Normal operating settings are more than 2.5 VDC before ignition, less than 2.5 VDC after ignition.

Soft Lock

73 DIP Switch is abnormal

This Error Code will clear when the condition is remedied. If Error happens again: 1. Check dip switches. Ensure switches match the ratings plate requirements of the water heater. See dip switch details, this manual, for default settings.

Soft Lock

76 Poor Communication

This Error Code will clear when the condition is remedied. If Error happens again: 1. Check connections from main control to display panel. 2. If the problem persists, replace the display.

Soft Lock

78 Cascade Communication Error

NOTE: This error will only appear in a cascaded system. 1. Turn power OFF and ON at the appliance display panel. 2. If error reappears, ensure all cascaded appliances are powered ON. 3. If error reappears, check Installer Mode parameter 13:cn at all cascaded appliances. Ensure the address number matches that of the connected appliance (01 for Leader, 02 for Follower 1, etc.) and that no numbers are skipped or repeated. 4. Ensure every water heater in the cascade system is connected properly. Inspect the cascade cables and ensure all are connected without damage or defect. Repair or replace any damaged cables.

Soft Lock

79 Combustion Issues - Cascade / Common Vent Application

NOTE: This error will only appear in a cascaded and common vent system as Er:79 on the Leader and Er:61 on a Follower water heater. 1. Check the connections to the fan. Ensure all are secure. 2. If the fan does not rotate during the ignition sequence, check for 8 - 26.5 VAC power at the fan connection. If 8 - 26.5 VAC power is present at the control, replace the fan. If the blower does not have 8 - 26.5 VAC power, check power at the control. If 8 - 26.5 VAC power is not present at the control, replace the control.

Soft Lock

94

Exhaust NTC detects Vent Temperature is Greater than setting temperature. PVC : 149F(65C), CPVC : 200F(93.5C)

This Error Code will clear when the condition is remedied. If Error happens again: 1. Check if dip switch MAX Fire setting is ON. Switches 6 and 7 should be OFF for normal operation. 2. Check exhaust temperature sensor. Ensure connections are secure. 3. Check sensor resistance. If resistance is zero, replace the sensor. 4. Check exhaust vent for blockage.

Hard Lock

6.1 Error Codes (continued)

*Lockout Type : Hard lock: requires manual reset / Soft Lock: resets itself when issue subsides.

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SECTION 7 Troubleshooting

Question & Answer

Before calling for service, review the following diagnostic steps first.

Behavior Indicator

Burner does not ignite even if hot water is opened.

Make sure that the ON/OFF button on the Control Panel has been turned ON.

If the monitor on the Control Panel is blank, make sure the power cord is plugged and fuses on the main controller in the units are good. Make sure that there is water supplied to the unit. The heater will be running when the inlet water flow sensor detects the flow over 0.5gpm.

Make sure the cold and hot water valve are not plumbed in reverse.

Make sure that cold water and gas supply lines are opened.

Make sure that water lines are not frozen.

Outlet water is not hot enough.

Make sure that the set point temperature on the unit is not too low.

Make sure that the filter in the cold water inlet line is not clogged with debris.

Make sure that the gas supply type is correct.

Check if the supply and manifold gas pressures are in accordance with specifications.

Make sure that the water flow sensor with three wires has been properly connected on the PCB.

Outlet water is too hot.

Make sure that the set point temperature on the unit is not too hot.

Make sure that the filter in the cold water inlet line is not clogged with debris.

Make sure that the gas supply type is correct.(Check the provided gas with the water heater model)

Lukewarm water temperature Make sure that the filter in the cold water inlet line is clean.

Check if the supply gas pressure is sufficient.

The blower is still operating after the combustion stops.

This is normal because the blower still keeps operating for 60 seconds. If the motor is not running in 120VAC, replace the motor.

Abnormal sounds come from unit during operation.

Check for a leak of combustion gas between sealed chamber and exhaust duct inside the unit. Immediately call a qualified service technician for evaluation and halt operation of the unit. Improper venting termination, make sure that the venting termination complies with specification. Check if the supply gas pressure is sufficient. Insufficient gas pressure will cause unstable burner flame and noise.

7.1 Diagnostics

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7.1 Diagnostics (continued)

Diagnostics and suggested corrective actions This controller is able to record information about the water heaters condition for the ten previous faults or errors. Refer to the Error Code section of this Manual, (Section 6).

Display Condition Diagnostic Corrective Action(s)

Nothing shown on display control panel and blower running at full speed.

Panel is not receiving power.

Check wiring for short circuit or incorrect wiring.

Correct wiring per wiring diagram including connection of transformer to the control.

Check for 14VDC output of panel wire. Push the the button of control panel.

Nothing is shown in display control panel and no other Water Heater components are operating.

Control is not receiving 120VAC power.

Is there 120 VAC at the manual switch?

Correct the power supply from the manual switch.

Check the water heater inside manual power switch.

Turn on the manual power switch inside the water heater case.

Check for 120 VAC at the line voltage terminal inside the water heater case.

Correct wiring inside the water heater case using the wiring diagram in this manual.

Nothing is shown on control panel, but water heater is oper- ating.

Occurs when the communication is lost from the control to the display.

Check for loose connections and proper pin alignment/ engagement on the Control's plug.

Check for continuity on the wire harness from the display to the control panel. See repair parts section for proper replacement part.

Cycle power off and on using water heater power switch and check for operation.

Replace with new display module. See repair parts section for proper replacement part.

TEMPERATURE RISE TOO QUICKLY

Occurs when supply water temperature in heat exchanger rises faster than 2F per second during the first two minutes the burner is on.

Automatically resets after a few minutes delay or use manual reset.

See the message displayed TEMPERATURE SENSOR and follow procedures for loose connections.

TEMPERATURE SENSOR

Occurs when a temperature sensor has electrically shorted(SHORT) or has become disconnected (OPEN).

Reset screen on control panel. (Power button)

Check all the temperature readings of the water heater on the DIAGNOSTICS - TEMPERA- TURES menu to determine if any sensors are currently displayed as SHORT or OPEN.

Check wire harness for loose connections and pin engagement at sensor Connection and Control module.

If problem persists after checking items above, replace Control.

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Display Condition Diagnostic Corrective Action(s)

FLAME FAULT

Occurs when flame is detected when there should be no flame

Reset using manual switch. Reset screen on control panel. (Power button)

Burner may be operating too hot due to incorrect combustion.

Check for flame at burner via flame current with burner off. Turn off and watch flame through observation port. If flame continues after shutdown, replace gas valve.

BLOWER FAULT Blower is unable to reach required speed or 0 RPM when it is turned off.

Reset using manual switch. Reset screen on control panel. (Power button)

Check wire harness for loose connections and pin engagement at blower connections.

Water heater is in standby mode and fan is not running. If FAN SPEED is not 0 RPM then replace the fan.

IGNITION FAULT

Even if water heater went through 8 ignition attempts, but cannot detect flame.

Manual switch Power off and on.

Check incoming gas pressure with water heater off and at MAX fire. Adjust within limits on rating plate.

Check for vent pipe and intake pipe restrictions or blockage

Check burner fasteners and gaskets

Check air intake pipe and orifice

GAS VALVE FAULT The Control has

detected a problem with its gas valve output circuit

Reset using manual switch. Reset screen on control panel. (Power button)

Check wire harness connections between gas valve and Control.

If lockout reoccurs, replace Gas valve.

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Regular Maintenance After the water heater installation is completed, this manual should be placed in safe dry location near the water heater. Maintenance instructions should be carried out by these guidelines annually by a qualified technician. For maintenance details, please refer to the instructions below.

- Check power source. Make sure that the power cord is correctly connected. The main power line is connected to the manual switch box inside the Water Heater.

- Check vent pipe. Visually inspect the flue gas vent piping for detecting any signs of blockage, leakage or deterioration of the piping. Please contact a qualified service technician immediately if you find any problem.

- Check air inlet pipe. Visually inspect the air inlet to be sure it is unobstructed. Inspect entire length of air piping for ensuring that piping is intact and all joints are properly sealed. Call your qualified service technician if you notice any problems.

- Check relief valve. Inspect the Water Heater relief valve and the relief valve discharge pipe for any signs of weeping or leakage. If the relief valve often weeps, immediately contact your qualified service technician for inspecting the Water Heater and system.

- Check the condensate outlet. While the Water Heater is running, check the discharge end of the condensate drain tubing. Make sure that no flue gas is escaping from the condensate drain tubing. If flue gas is continuously escaping, it is a serious problem. Call your qualified service technician for inspecting the Water Heater and condensate line. Also, refill the condensate trap if problem persists regularly.

- Visually inspect the vent terminal rodent screen. If clogged with debris, clean the screens or replace it with spare parts.

Maintenance procedures [ Periodically ]

- Check installation location To prevent potential severe personal injury, death or substantial property damage, remove all material contaminants. If contaminants are found : Remove products immediately from the area. In order to check the status of Water Heater, call a qualified service technician to inspect the Water Heater for possible damage from acid corrosion.

- Check if WATER HEATER casing is closed. Check if there is any problem with the Water Heater casing and the two upper and lower screws are tightened well. Water Heater casing must be closed while it is running.

Periodically

Please check installation location. Please check if water heater casing is closed. Please check power source.

Monthly

Please check vent pipe. Please check air inlet pipe. Please check relief valve. Please check condensate outlet.

Every 6 Months Please check water heater piping (gas and water) Please check operate relief valve

No plan for long- term use.

Do not shut the water heater down unless fully drained of all water to prevent damage from freezing.

SECTION 8 Maintenance

DO NOT store combustible materials, gasoline or any other flammable vapors or liquids near the Water Heater. Remove them immediately or store them other places.

WARNING

8.1 Annual Startup and General Maintenance

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- Cleaning Air Intake Filter - To properly maintain the water heater, you should clean the air intake filter every 3 months. If not, you may

encounter combustion issues

To clean air intake filter: 1. Press Power button on the control panel to turn off the water heater. 2. Remove the screw holding the filter screen. 3. Remove the filter from the plastic assembly and clean it with a toothbrush and clean running water. 4. Dry the filter completely then reinsert the filter into the collar and secure with filter screws.

- Cleaning cold water Inlet Filter (Draining the Water Heater)

1. Place a bucket under the appliance to collect the residual water inside the water heater. 2. Press Power button on the front control panel to turn off the electrical power to the water heater. And then

turn off the gas valve. 3. Close water supply valve on the inlet to the appliance. If there is no valve, turn off main water valve. 4. Open the hot water faucets completely. 5. Remove the cold water inlet filter allowing water in the pipes to drain into the bucket. Then clean it with

a toothbrush and clean running water.

6. To refill the water heater, follow the previous steps in reverse.

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- Flushing the Water Heater Flushing the Heat Exchanger of the water heater is a complicated procedure and should only be done by an authorized technician or licensed professional. Keep in mind that improper maintenance can void your warranty.

1. Disconnect electric power to the water heater. 2. Close the shutoff valves on both hot water outlet and

cold water inlet lines. (V1 & V2) 3. Connect one hose "D1" to the valve "V3" and place

the free end in the bucket. Connect one of the hoses "D3" to the circulation pump outlet and the cold water inlet line at the valve "V4". Connect other hose "D2" to the circulation pump inlet and place the free end in the bucket.

4. Pour the cleaning solution into the bucket. A straight white vinegar solution is recommended. If using a commercial descaling solution refer to the manufactures proper dilution ratio. Place the drain hose (D1) and the hose (D2) to the pump inlet into the cleaning solution.

5. Open service valves (V3 & V4) on the hot water outlet and cold water inlet lines.

6. Turn on the circulation pump (Operate the pump and allow the cleaning solution to circulate through the water heater for at least 1 hour at a rate of 4 gallons per minute.)

7. Rinse the cleaning solution from the water heater as follows: - Remove the free end of the drain hose (D1) from the

bucket. - Close service valve, (V4), and open shutoff valve,

(V2). Do not open shutoff valve, (V1). - Allow water to flow through the water heater for 5 minutes.

- Close shutoff valve (V2).

8. Disconnect all hoses. 9. Remove the cold water inlet filter from the water heater

and clean out any residues. 10. Reinsert the filter and ensure the filter cap is securely

tightened. 11. Connect electrical power to the water heater.

Maintenance procedures [Every 6 Months]

- Check piping. (gas and water) Visually inspect for leaks around internal water piping. Also inspect external water piping, circulators, relief valve and fittings. Immediately call a qualified service technician to repair any leaks. Leaks must be fixed by a qualified service technician immediately. Failure to comply with this instruction could result in severe personal injury, death or substantial property damage.

- Check relief valve operation

WARNING Before proceeding with maintenance, verify that the relief valve has be piped to a safe place, avoiding any possiblity of scalding from hot water.

Before proceeding with maintenance, verify that relief valve outlet has been piped to a safe place of discharge, avoiding any possibility of scalding from hot water. If water flows freely, release the lever and allow the valve to seat. Watch the end of the relief valve discharge pipe to ensure that the valve does not weep after the line has had time to drain. If the valve weeps, lift the seat again to attempt to clean the valve seat. If the valve continues to weep, contact your qualified service technician for inspecting the valve and system. If water does not flow from the valve even though you have lifted the lever completely, the valve or discharge line may be blocked. Shut down the Water Heater immediately. Call your qualified service technician to inspect the water heater and system.

- Check burner condition The burner should be cleaned or replaced by a qualified service technician when needed.

WARNING Leaks must be fixed by a qualified service technician imme- diately. Failure to comply with this instruction could result in severe personal injury, death or substantial property damage. This discharge line must be installed by a qualified heating installer or a service technician.

D1 D2

D3

8.1 Annual Startup and General Maintenance (continued)

V2

V4

V1

V1

V3

V3

V2 V4

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SECTION 9 Installation Check 9.1 Quick View Before Installing

- Make sure that there is enough space for installing water and gas line.

- Verify vent/air termination is located as required. - Verify the unit is set up for the gas supply

Install Water Piping - Water Heater loop piping must be sized to the

minimums listed in the Water Heater manual. Using smaller piping will cause performance problems.

Install Vent & Air Piping - Slide the air inlet pipe and vent pipe into the Water

Heater pipe connector. - Make sure the terminations are placed as required

in the manual and that air intakes are at least 12 inches above normal snow line.

- Refer to the material check list in this guide for a list of items needed.

Install Condensate Piping / Tubing & Components - Fill out the material check list in this guide to

ensure you have the tubing or PVC pipe and all components needed for the condensate piping.

- Connect internal components that are supplied with the Water Heater.

Install Gas Piping - Install a union and shutoff valve.

Wire the Water Heater - Connect power wiring and control wiring per water heater manual wiring diagram.(Section 4.20)

Start up, Adjust & Test - Follow the Water Heater manual instructions to clean the system if needed, then fill and check water chemistry.

9.2 Final check lists

Final check: Installation Conditions. Is the Water Heater properly mounted on the wall? Is there space for a drain which is close to the Water Heater? Are there any combustible materials near the Water Heater and vent pipe? Is the air supply sufficient for proper operation of the Water Heater? Are the proper service clearances maintained? Is the distance between the Water Heater and point of vent termination minimized? Is the proper distance from windows, doors, and other intake vents maintained?

Final check: Gas pipe installation Is the gas supply line equipped with a manual shut off valve? Is the gas supply line a minimum of 1/2" inner diameter? Is the gas supply line length and diameter adequacy to deliver the required BTUs? Has the gas supply line pressure been measured? Does the supply gas type match the type indicated on the water heater rating plate?

Final check: Air/Vent pipe installation Has the Water Heater been vented with 3" or 2" PVC, CPVC, Polypropylene or BH Special Gas Vent (S636 PVC, CPVC) for Category IV appliances in accordance with this manual and/or your local code? Is the vent termination at least 12" above the exterior grade? Is the total vent length within the maximum vent length restriction? Have you checked the air/vent piping for leaks? Have you properly supported the vent termination? Are all vent runs properly supported? Is the vent sloped upward toward the vent termination at a rate of 1/4" per foot (2% grade)?

Final check: Condensate drain installation Have you installed a condensate drain line from the Water Heater to a drain or laundry tub?

Final check: Setting the DIP switches Are all DIP switches correctly set on the main board?

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Final check : Connecting the power supply Check that the power is 120V AC. Confirm the polarity of the electrical connection.

Final check : Pressure relief valve Have you installed an approved pressure relief valve on the water heater? Is the pressure relief valve at least 3/4" in diameter? Have you installed the pressure relief valve on the hot water outlet pipe near the Water Heater?

Final check : Burner flames The burner flame should be checked annually for a constant proper blue color. If the flame does not appear normal, the burner may need to be cleaned. If the burner needs to be cleaned, it must be performed by a qualified service technician.

Sight Glass

Blue flame picture

Final Check List (continued)

Infiniti GS Series Tankless Water Heater

NOTES:

Bradford White Corporation

NOTES:

Infiniti GS Series Tankless Water Heater

NOTES:

Bradford White Corporation

BRADFORD WHITE CORPORATION

WHAT DOES THIS LIMITED WARRANTY COVER? This limited warranty covers both the heat exchanger and component parts for leakage or other malfunction caused by defects in materials and/or workmanship. It applies to the original consumer purchaser and to any subsequent owner as long as the heater remains installed at its original place of installation and installation is performed by a professional installer.

WHAT DOES THIS LIMITED WARRANTY NOT COVER?** 1. This limited warranty does not cover leakage or other

malfunctions caused by: a) Defective installation, reinstallation at another

location, installation by anyone other than a professional installer, and specifically, any installation which is made: i) in violation of applicable state or local plumbing,

housing or building codes, or ii) without a certified American Gas Association,

ASME, or comparable pressure relief valve, or iii) contrary to the written instructions furnished with

the unit. b) Adverse local conditions, specifically sediment or

lime precipitate in the heat exchanger; corrosive elements in the atmosphere; or water quality contrary to the written requirements furnished with the unit.

c) Misuse, specifically operations and/or maintenance contrary to the written instructions furnished with the unit, anode removal (if provided), disconnection, alteration or addition of non-approved components or apparatus, operation at settings other than those set forth on the rating plate, or accidental or other exterior damage.

2. This warranty also does not cover: a) Production of noise, taste, odors, discoloration or

rusty water. b) Incidental property damage, loss of use,

inconvenience or other incidental or consequential costs.

c) Costs associated with the replacement and/or repair of the unit, including: i) any freight, shipping or delivery charges ii) any removal, installation or re-installation charges iii) any material, and/or permits required for

installation, re-installation or repair iv) charges to return the defective heater and/or

component part to the manufacturer.

WHAT IS THE PERIOD OF COVERAGE? This limited warranty runs from date of installation (or without proof of installation, from three (3) months after the date of manufacture) for the period specified on the following table.

WHAT IS THE DURATION OF THE IMPLIED WARRANTY? ANY IMPLIED WARRANTIES, INCLUDING THE WARRANTY OF MERCHANTABILITY IMPOSED ON THE SALE OF THE WATER HEATER UNDER THE LAWS OF THE STATE OF SALE ARE LIMITED IN DURATION TO ONE YEAR FROM DATE OF ORIGINAL INSTALLATION.

HOW DOES STATE LAW RELATE TO THE WARRANTY? Some states DO NOT allow: 1. Limitations on how long an implied warranty

lasts. 2. Limitations on incidental or consequential

damages. Therefore, the above limitations or exclusions may not apply to you.

This warranty gives you specific legal rights, and you may also have other rights which vary from state to state.

LIMITED INFINITI TANKLESS WATER HEATER WARRANTY

FIFTEEN YEAR LIMITED HEAT EXCHANGER WARRANTY* Ano charge* replacement will be provided in the event of a covered failure of the Heat Exchanger.

FIVE YEAR LIMITED PARTS WARRANTY* All other parts not referenced above are covered for five years from date of original installation. --------------------------------------------------------------- *Note: Limited heat exchanger warranty fifteen (15) years. Limited parts warranty is five (5) years. A warranty product or part is provided exclusive of labor, freight and/or any installation costs. Any product used for other than a single-family housing unit application will be warranted for only eight (8) years on heat exchanger and five (5) year on parts regardless of any other warranty period specified. All replacement heaters and parts carry the balance of the original warranty, i.e. if an original fifteen (15) year warranted heater develops a leak due to defects in materials/workmanship after only eight (8) years, the replacement unit is warranted for seven (7) years in this example.

**Restrictions are not applicable to implied warranties in California. See Special State Provisions on reverse side.

54717A (05/22)

54717A (05/22)

WHAT WILL WE DO TO CORRECT PROBLEMS? 1. If a defect occurs within the heat exchanger warranty

period, we will: Provide a replacement heat exchanger of our manufacture (or at our option) repair any unit which develops a leak in the heat exchanger within the warranty period. To obtain a replacement, you must forward both the rating plate from the defective unit to us and a copy of the original sales receipt. If government regulations require the replacement heat exchanger to have features not found in the defective heat exchanger, you will be required to pay the difference in price represented by those government required features.

2. If a defect occurs within the parts warranty period, we will: Provide a replacement part (or at our option repair) any part which fails to function within the parts warranty period. To obtain a replacement, you must forward the defective part to us. If government regulations require the replacement part to have features not found in the defective part, you will be required to pay the difference in price represented by those government required features.

We do reserve the right to verify any claims of defect by inspection.

WHAT WILL WE NOT DO? We will not: 1. Repair or replace any heater or part subject to conditions

outlined in What Does This Limited Warranty Not Cover?

2. Reimburse any costs associated with repair and/or replacement.

3. Replace and/or repair any heater without complete model/serial number.

4. Replace any heater without prior receipt of actual rating plate from appliance and copy of original sales receipt.

HOW DO YOU GET WARRANTY ASSISTANCE? Upon discovering a defect or problem, you should: 1. Contact either the professional installer or dealer, or 2. Contact us

BRADFORD WHITE CORPORATION WARRANTY SUPPORT GROUP 200 LAFAYETTE ST. MIDDLEVILLE, MI 49333 1-800-531-2111 warranty@bradfordwhite.com

Please have model number and serial number ready.

WHAT SHOULD YOU DO TO KEEP THE WARRANTY IN EFFECT? To facilitate warranty assistance, you should: 1. Follow all instructions enclosed with the

product. 2. Retain all bills of sale or receipts for proof of

installation, etc. 3. Contact your installer, dealer or our Warranty

Department as soon as any problem or defect is noticed.

4. When necessary, allow us, or our chosen representative, to inspect the unit.

5. For your reference, fill in the Model and Serial Number found on the units Rating Plate:

Model Number

Serial Number

Date of Installation

Name of Installer

LIMITED TANKLESS WATER HEATER WARRANTY (CONTINUED)

SPECIAL STATE PROVISIONS For heaters installed in California or Oregon, paragraphs 2(c) (i) (iv) of the section WHAT DOES THIS WARRANTY NOT COVER? does NOT apply. All other terms and conditions of this warranty apply as stated.

PLEASE RETAIN THIS WARRANTY IN A SAFE LOCATION FOR FUTURE REFERENCE

For U.S. and Canada field service, contact your professional installer or

local Bradford White sales representative.

Sales

Technical Support Email

Warranty Email

Service Parts Email

800-523-2931

800-334-3393 techserv@bradfordwhite.com

800-531-2111 warranty@bradfordwhite.com

800-538-2020 parts@bradfordwhite.com

Sales & Technical Support Fax

Warranty

Technical Support

Service Parts

Orders

866-690-0961 905-203-0600 905-636-0666

bwccwarranty@bradfordwhite.com

bwcctech@bradfordwhite.com

orders@bradfordwhitecanada.com

ca.orders@bradfordwhite.com

General Contact international@bradfordwhite.com

www.bradfordwhite.com2022, Bradford White Corporation, USA. All rights reserved.

United States

Canada

International

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