Noritz GQ-2857WX-FFA US Installation Manual Download Page 2

Page: 2 / 42

Included Accessories

The following accessories are included with the unit.

Check for any missing items before starting installation.

Q’ty

Shape

Part

Anchoring Screw

each

Part

Shape

Q’ty

Optional Accessories

The accessories listed below are not

included with the units, but may be necessary

for installation.

Q’ty

Shape

Part

Shape

Q’ty

Quick Connect Cord

(QC-2)

Isolation Valves*

(includes pressure

relief valve)

Owner's Guide, Warranty,

Installation Manual

(this document)

Rain Cap with Air Intake

Remote Controller

(See p.28)

System Controller

(SC-301-6M-EXT)

Drain hose

(With clamp)

Part No.

Description

4"-CVP-4STR

12"-CVP-12STR

24"-CVP-24STR

36"-CVP-36STR

Adjustable

Part No.

Description

CVT-S

Horizontal Termination

Flange Elbow

Part No.

Description

CRCAI-1-F

Adjustable

90 Elbow

Support Strap

CVP-45ELB

CSCR-1

Standard Horizontal Kit

FP-5-OUT

90 Elbow

Straight

Termination

11"-CVP-11ADJ

16"-CVP-16ADJ

40"-CVP-40ADJ

CWF-F

Storm Collar Ring

CVP-90ELB

SS5-2

CARF-1

45 Elbow

Plate

CVP-90ADJELB**

CWF-90ELB**

Horizontal Kit - CVK-H-F

Vertical Kit - CVK-H2-F

Roof Flashing

(0 - 45 )

Note: Additional vent pieces are available; consult the latest product catalogue for details.

* Isolation valves are necessary for flushing the Heat Exchanger.

They allow for easy flushing of the system.

** "Male to Male Adapter (CVP-ADAPT-M2M)" is necessary for using "Adjustable 90°Elbow (CPV-

90ADJELB)" and "Horizontal Termination Flange Elbow (CWF-90ELB)".

Wall Flange

-Female Model

Male to Male Adapter

CVP-ADAPT-M2M

Summary of Contents for GQ-2857WX-FFA US

Page 1: ...ted in this manual are not covered by the warranty Check that the installation was done properly in accordance with this Installation Manual upon completion After completing installation please either place this Installation Manual in a plastic pouch and attach it to the side of the water heater or the inside of the pipe cover or recess box if applicable or hand it to the customer to retain for fu...

Page 2: ...4 CVP 24STR 36 CVP 36STR Adjustable Part No Description CVT S HorizontalTermination Flange Elbow Part No Description CRCAI 1 F Adjustable 90 Elbow Support Strap CVP 45ELB CSCR 1 Standard Horizontal Kit FP 5 OUT 90 Elbow Straight Straight Termination 11 CVP 11ADJ 16 CVP 16ADJ 40 CVP 40ADJ CWF F Storm Collar Ring CVP 90ELB SS5 2 CARF 1 45 Elbow Plate CVP 90ADJELB CWF 90ELB Horizontal Kit CVK H F Ver...

Page 3: ...ler connector from the other unit Note Connect the remote controller to only one of the units System Diagram Insulate the hot water piping to prevent heat loss Insulate and apply heating materials to the cold water supply piping to prevent heat loss and freezing of pipes when exposed to exces sively cold temperatures Size the piping to allow for the maximum flow rates of the units Distance at cent...

Page 4: ...ly required is 120VAC at 60Hz May result in fire or electric shock Use Extreme Caution if Using With a Solar Pre Heater Using this unit with a solar pre heater can lead to unpredictable output temperatures and possibly scalding If absolutely necessary use mixing valves to ensure output temperatures do not get to scalding levels Do not use a solar pre heater with the quick connect multi system Prec...

Page 5: ...id installation in places where special chemical agents e g hair spray or spray detergent are used Ignition failures and malfunction may occur as a result Carbon Monoxide Poisoning Hazard Do not install this water heater in a recreational vehicle or on a boat The water heater is designed for indoor installation only Never install it outdoors or in a bathroom it may be damaged or a fire may be caus...

Page 6: ...installing make sure that the exhaust flue termination will have the proper clearances according to the National Fuel Gas Code ANSI Z223 1 latest edition or the Natural Gas and Propane Installation Code CSA B149 1 State of California The water heater must be braced anchored or strapped to avoid moving during an earthquake Contact local utilities for code requirements in your area or call 1 866 766...

Page 7: ...stance from combustibles Maintain the following clearances from both combustible and non combustible materials Check Illustration If possible leave 8 200mm or more on either side of the unit to facilitate inspection If possible leave 24 600mm or more in front of the unit to facilitate maintenance and service if necessary If possible leave 3 75mm or more above and below the vent pipe to facilitate ...

Page 8: ...al air supply inlet to building or the combustion air inlet to any other appliance K Clearance to a mechanical air supply inlet 6 ft 1 83 m L Clearance above paved sidewalk or paved driveway located on public property Clearance under veranda porch deck or balcony 7 ft 2 13 m M 1 In accordance with the current CSA B149 1 Natural Gas and Propane Installation Code 2 In accordance with the current ANS...

Page 9: ... suffi cient reinforcement must be done to prevent the transfer of vibration Do not drop or apply unnecessary force to the device when installing Internal parts may be damaged and may become highly dangerous Install the unit on a vertical wall and ensure that it is level Locating Screw Holes Mounting Structure When installing with bare hands take caution to not inflict injury Be careful not to hit...

Page 10: ...s can cause abnor mal combustion resulting in undesired performance from the water heater 8 Vent Pipe Installation This appliance requires the use of special concentric type vent pipe specified by Noritz America Do not attempt to use materials that are not specified for use on this appliance WARNING Be sure to do CARBON MONOXIDE POISONING Follow all vent system requirements in accordance with rele...

Page 11: ...rform this step will result in a 73 code displayed on the operation panel and a cease in operation If this occurs disconnect then reconnect power to the water heater to reset the system Note Please refer to page 28 for the location of the dip switch bank Maximum Vent Length Configurations Do not change any other dipswitches Vent length condition 1 Minimum length 7 8 ON OFF 2 Short length 3 Long le...

Page 12: ...gases from leaking Steam or condensed water may drip out of the vent terminal Dispose of this condensed water according to local codes and in order to prevent injury or property damage If this product will be installed in an area where snow is known to accumulate protect the vent termination from blockage by snow drifts or damage from snow falling off of roofs Support the vent pipe with hangers at...

Page 13: ... at least 6 1 8m from the combus tion air intake of any appliance and 3 0 9m from any other building opening gas utility me ter service regulator etc Enclose exterior vent systems below the roof line to limit condensation and protect against mechanical failure When the vent penetrates a floor or ceiling and is not running in a fire rated shaft a firestop and support is required When the vent termi...

Page 14: ...the installer The installer must be professionally trained to do such work and must always follow all local and national codes and regulations Gas line sizing calculations must be performed for every installation Please contact Noritz America at 866 766 7489 if you have any questions or concerns CAUTION Regulators Ensure that all gas regulators used are operating properly and providing gas pressur...

Page 15: ...d length from the meter or regulator so that the following supply pressures are available even at maximum demand WARNING Natural Gas Supply Pressure Min 4 WC Max 10 5 WC LP Gas Supply Pressure Min 8 WC Max 14 WC Reference Tools Sample Calculations The tables and samples below are for reference only The professional sizing and installing the gas line should always run the appropriate calculations b...

Page 16: ...3 45 13 5m Use 50 15m 175 000 Btuh requires 1 Outlet E 25 7 5m Use 30 9m 199 900 Btuh requires 3 4 Section 4 45 13 5m Use 50 15m 355 000 Btuh requires 1 1 4 Natural Gas Meter Noritz Tankless Gas Water Heater 199 900 Btuh Clothes Dryer 35 000 Btuh Barbecue 50 000 Btuh Gas Range Stove 65 000 Btuh 10 3m 10 3m 10 3m 10 3m 5 1 5m 5 1 5m 5 1 5m 5 1 5m 5 1 5m 5 1 5m Gas Fireplace 25 000 Btuh Section 3 Se...

Page 17: ...nce to verify all appliances are receiving a minimum of 5 WC for NG or 8 WC for LP If all appliances are not receiving the minimum inlet pressure the gas piping system may need to be changed CAUTION Pipe Size Length including fittings 10 20 30 40 50 60 70 80 90 100 125 150 200 3m 6m 9m 12m 15m 18m 21m 24m 27m 30m 38m 45m 60m 1 2 275 189 152 129 114 103 96 89 83 78 69 63 55 3 4 567 393 315 267 237 ...

Page 18: ...ot be connected to any heating system or components previously used with a nonpotable water heating appliance When water is required in one part of the system at a higher temperature than in the rest of the system means such as a mixing valve shall be installed to temper the water to reduce the scald hazard Installation and service must be performed by a qualified plumber In the Commonwealth of Ma...

Page 19: ...insulation heat tape or electric heaters solenoids or pipe covers In order for the freeze prevention heaters to operate the water heater must have power at all times Supply water piping Do not use PVC iron or any piping which has been treated with chromates boiler seal or other chemicals Mount a check valve and a shut off valve near the inlet In order for the client to use the water heater comfort...

Page 20: ...on is an example Please check with the actual water heater about the position of piping and form If this water heater will be installed in an application where the supply water is hard the water must be treated with either the Noritz H2Flow or ScaleShield or a water softener Refer to the below tables for suggested treatment and maintenance measures to be taken based on the water hardness level If ...

Page 21: ...e H2 to the circulating pump 5 Connect the drain hose H3 to the drain valve V4 6 Pour 1 gallon of 㻯㼍㼘㼏㼕㼡㼙㻘㻌㻸㼕㼙㼑㻌㼍㼚㼐㻌㻾㼡㼟㼠㻌㻾㼑㼙㼛㼢㼍㼘㻌㻼㼞㼛㼐㼡㼏㼠 and 㻝㻌gallon water into the bucket Noritz recommends 㻯㼍㼘㼏㼕㼡㼙㻘㻌㻸㼕㼙㼑㻌㼍㼚㼐㻌㻾㼡㼟㼠㻌㻾㼑㼙㼛㼢㼍㼘㻌㻼㼞㼛㼐㼡㼏㼠㻌for flushing 7 Place the both drain hoses H2 and H3 into the bucket filled with the flushing solution 8 Open the both drain valves V3 and V4 The water heater must remain ...

Page 22: ...llons per minute or more 5 The code C60 is displayed on the Remote Controller when the water heater detects the flow of the flushing solution When 1 minute passes the code C60 will change to C59 on the Remote Controller 6 When 1 hour passes the code C00 is flashing on the Remote Controller Do not disconnect the blue connector for flushing 7 Turn off the circulating pump The connector color is blue...

Page 23: ...he Remote Controller 7 Close the Front Covers 8 Open the gas supply valves and water out let valves 9 Check for correct operation of the water heaters is displayed when the Main Water Heater s bule connector is connected is displayed when the Sub Water Heater s bule connector is connected Main Water Heater Sub Water Heater Circuit Board Remote Controller Quick Connect Cord CCC FCC CCC FCC Detects ...

Page 24: ... check the remaining time of flushing䍿 ON OFF PROG ALARM OFF 120 F Temp CCC Error unit 01 Beep Beep Press ON ON ALARM OFF STOP OFF Display Example In case of Unit 1 s blue connector is connected System down is displayed when the all unit s blue connectors are connected at the same time Press the both buttons simultaneously for more than 2 seconds Press Unit No 0 3 Item Data 0 0 0 0 0 Display Examp...

Page 25: ...th Procedure 3 See the Procedure 3 1 3 5 7 Disconnect the blue connector for flushing The Code CCC goes out on the Remote Controller 8 Close the Front Covers 9 Open the gas supply valves and water outlet valves 10 Check for correct operation of the water heaters Water Drain Valve NOTE Place a bucket under the water heater to drain water from the Water Drain Valve Carefully unscrew the Water Drain ...

Page 26: ...ommends the use of an Isolation Kit with the installation These kits include an integrated shut off and service valve with unions and a pressure relief valve 2 Size the pump to provide a maximum of 3 GPM 11 3 L min with a head pressure equal to the loss through the water heater and Air Handler 3 Check valve required if it is not included with the pump 4 Set the flow switch to deactivate the Air Ha...

Page 27: ...ater or gas piping Do not tie the ground to a telephone line Breaker Installation Mount a device which shuts off the electrical path automatically leakage breaker when electrical leakage is detected The electrical supply required by the water heater is 120VAC at 60 Hz The power consumption may be up to 276W or higher if using optional accessories Use an appropriate circuit Do not disconnect the po...

Page 28: ...s removed 185 F 85 C 140 F 60 C 130 F 54 C 120 F 50 C To change the default temperature adjust the dip switches as described below The default temperature is 120 F 50 C 1 Disconnect electrical power to the water heater 2 Remove the front cover of the water heater 4 screws 3 Disconnect the remote controller Adjust the dip switches as illustrated below 4 Replace the front cover of the water heater 4...

Page 29: ...rode and cause problems Be sure to hand tighten when screwing to the terminal block Power tools may cause damage to the terminal block 1 Check to make sure that the remote controller cord has plenty of slack in order to reach the external connection terminal block 2 Disconnect electrical power to the water heater 3 Remove the single screw securing the terminal block cover and then remove the cover...

Page 30: ...te controller 2 Disconnect then reconnect electrical power to the water heater 3 Press the MENU Button inside the cover select Initial settings using the Buttons 4 Press the ENTER button the Initial settings screen appears on the display 5 Select F gal C L using the Buttons 6 Press the ENTER Button and select either F gal or C L using the Buttons 7 Press the ENTER Button and Set complete Please wa...

Page 31: ...om a wall circuit to the pump 5 Replace the front cover Pump Wiring This feature is not available when using the Quick Connect Multi System feature Relay connection with larger pumps 85 W 1 Locate and prepare the pump control wires as described above 2 Choose a suitable installation location for the relay where it will be protected from moisture 3 Connect the pump control wires from the heater to ...

Page 32: ...upling Cord Clamp Ground wire Connector Connector Connecting Quick Connect Cord 2 Caution For Quick Connect Multi System Installation use part QC 2 only sold separately Quick Connect Cord 2 Quick Connect Cord 2 tag A B 1 Red 2 Black 3 White 4 Green 5 Blue 6 Blue 1 Red 2 Black 3 White 4 Green 5 Blue 6 Blue 1 Red 2 Black 3 White 4 Green 5 Blue 6 Blue 1 White 2 Green 3 Red 4 Black 5 Blue 6 Blue The w...

Page 33: ... a proper blue color and consistency 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 Do not obstruct the flow of combustion and ventilation air The pressure relief valve must be operated once a year to ensure that it is functioning properly and there is no obstruction Turn the power off t...

Page 34: ...power to the unit 8 The unit will now operate whenever hot water is called for If the unit will not operate follow the shutdown instructions and call a service technician Shutdown Instructions 1 Stop any water demand 2 Turn off electric power 3 Turn the gas control manual valve clockwise to the off position Should overheating occur or the gas supply fail to shut off turn off the manual control val...

Page 35: ...BLONG HOLE 24 6 626mm 22 3 567mm HOT WATER OUTLET COLD WATER INLET GAS INLET 1 8 45mm 2 2 55mm 2 2 56mm AC120V FLUE COLLAR AIR INLET CONDENSATE DRAIN GAS INLET COLD WATER INLET WATER DRAIN VALVE WATER FILTER WIRING THROUGHWAY HOT WATER OUTLET WATER DRAIN VALVE AC120V WIRING THROUGHWAY HOT WATER OUTLET 3 4 GAS INLET 3 4 WIRING THROUGHWAY COLD WATER INLET 3 4 WIRING THROUGHWAY 6 0 2 x 0 4 6 x10mm OB...

Page 36: ...minutes of connecting electrical power before turning on the Power On Off Button press the or button on the remote controller and hold until the display blinks 99 If 99 does not blink on the remote controller unplug the water heater and try again 4 Use the or button on the remote controller to scroll to the appropriate dipswitch number as indicated below 5 Press the FLOW METER ALARM SET button for...

Page 37: ... This system will make hot water more quickly available to remote fixtures The pump will circulate water through the loop until the entire loop is warm and then the system controller will turn off the pump until the loop cools down Size the pump to provide at least 2 GPM 10 feet of head piping losses through the system Check the maintenance monitors on the unit to make sure the pump is providing a...

Page 38: ...tat Pump Control Wires use external relayV Unit 1 Set Yes for the question Start pump rotation in system settings See SC 301 6M EXT Installation Manual When installing 2 pumps in parallel Set Yes for the question Start pump rotation in system settings See SCU 301 6M EXT Installation Manual B 2 Example of Installation with a Storage Tank and Recirculation System Tank recirculation system The pump w...

Page 39: ...2 PCB Power PCB B5 B5 System Controller No 5 No 4 No 3 No 2 Remote Control terminal block Remote control terminal block Remote Controller Cord PCB Power PCB PCB Power PCB Multi System Wiring Use SC 301 6M EXT The remote controller terminal location may differ depending on the unit Connect these to the remote control terminal block in each unit ...

Page 40: ...n order to use this product safely read this installation manual carefully and follow the installation instructions Potential dangers from accidents during installation and use are described below Closely observe these warnings they are critical to your safety The remote controller is not water resistant Keep it dry CAUTION Do not connect power to the system unit until the remote controller instal...

Page 41: ...t The value in indicates the quantity Remote Controller Mounting bracket Raised countersunk head wood screw Wall anchor Raised countersunk head screw For junction box installation Machine screw When attaching to a junction box Use the raised countersunk head screws to attach the mounting bracket to the junction box In this case the wall anchor and raised countersunk head wood screws are not used T...

Page 42: ...of the remote controller and the frame pull the entire decorative frame forward while pressing the sections indicated where the fingers are in the figure below If it does not come off insert a flat head driver into the notch at the bottom of the decorative frame and slightly twist it to remove due caution is required not to scratch the remote controller decorative frame or the wall in doing so Cli...

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