Noritz GQ-C2859WX-FF US Installation Manual
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Noritz GQ-C2859WX-FF US Installation Manual

Condensing tankless gas water heater
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Installation Manual
CONDENSING TANKLESS GAS WATER HEATER
Potential dangers from accidents during installation and use are divided into the following three
categories. Closely observe these warnings, they are critical to your safety.
DANGER
WARNING
CAUTION
WARNING:
If the information in this manual is not followed exactly, a fire or explosion may result
causing property damage, personal injury or death.
Prohibited
Requests to Installers
• In order to use the water heater safely, read this installation manual carefully, and follow the
installation instructions.
• Failures and damage caused by erroneous work or work not as instructed 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 future reference. Also, be sure to fill in all of the required
items on the warranty and to hand the warranty to the customer along with the Owner's Guide.
CERTIFIED
R
Low NOx Approved by SCAQMD
14 ng/J or 20 ppm
(Natural Gas Only)
SBB80TB
Rev. 01/17
EZ111DV (GQ-C3259WX-FF US)
EZ98DV (GQ-C2859WX-FF US)
DANGER indicates an imminently hazardous situation which,
if not avoided, will result in death or serious injury.
WARNING indicates a potentially hazardous situation which,
if not avoided, could result in death or serious injury.
CAUTION indicates a potentially hazardous situation which,
if not avoided, may result in minor or moderate injury.
Disconnect
Power
CAUTION
Ground
FOR USE IN RESIDENTIAL OR MANUFACTURED HOME APPLICATIONS.
Installation must conform with local codes, or in the absence of
local codes, the National Fuel Gas Code, ANSI Z223.1/NFPA 54-
latest edition and/or the Natural Gas and Propane Installation
Code CSA B149.1 - latest edition.
When applicable, installation must conform with the Manufactured
Home Construction and Safety Standard, Title 24 CFR, Part
3280 or the Canadian Standard CAN/CSA-Z240 MH Mobile
Homes, Series M86.
Noritz America reserves the right to discontinue, or change at any
time, the designs and/or specifications of its products without notice.
NORITZ AMERICA
CORPORATION
Be sure to do
*SBB80TB*

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  • Page 1 14 ng/J or 20 ppm 3280 or the Canadian Standard CAN/CSA-Z240 MH Mobile (Natural Gas Only) Homes, Series M86. Noritz America reserves the right to discontinue, or change at any time, the designs and/or specifications of its products without notice. SBB80TB Rev. 01/17...

  • Page 2: Included Accessories

    Included Accessories The following accessories are included with the unit. Check for any missing items before starting installation. Part Shape Part Shape Q’ty Q’ty Owner's Guide, Warranty, Anchoring Screw Installation Manual each (this document) Remote Controller Remote Controller Cord (6ft (2m)) (See p.

  • Page 3: Optional Accessories

    (With Inlet Screen) each Flex Vent 2" Kit • 2"×3" Increaser coupling • 2" Pipe 35 Feet** • Installation Manual (EZ2FVK-2) (Check List) 3"(75mm) Noritz Connect Horitzontal Wireless Adapter Hood Termination NWC-ADAPTER (PVT-HL) (NAW-1 US) Neutralizer Plastic Rain Cap*** (NC-1)

  • Page 4: Quick Connect Multi System Installation

    Quick Connect Multi System Installation • The Quick Connect Multi System allows the installation of two units together utilizing only the Quick Connect Cord. The Quick Connect Cord is 6 ft.(2m) long. Install the units 3-18" (75-457mm) apart from each other to ensure the cord will be able to reach between the units.

  • Page 5: Before Installation

    (Pour installation dans une maison préfabriquée(Mobile)). -For gas conversion information, contact Noritz America. (Pour I’ information de conversion de gaz, contact Noritz America.) • Using this unit with a solar pre-heater can lead to unpredictable output temperatures and -Installations above 2000 ft(610m) require an adjustment. See Installation Instructions for details.(Installations au-dessus de 2000 ft(610m) exigent un ajustement.

  • Page 6: Choosing Installation Site

    Choosing Installation Site * Locate the appliance in an area where leakage from the unit or connections will not result in damage to the area adjacent to the appliance or to the lower floors of the structure. When such installation locations cannot be avoided, a suitable drain pan, adequately drained, must be installed under the appliance.
  • Page 7 1) This water heater can only be used in outdoor applications if the usage is restricted to summertime usage exclusively. 2) The water heater can be used for hot water only and not in a combination of domestic and space heating. For Venting Manufacturers Requirements, see websites listed below: Noritz N-Vent www.noritz.com...

  • Page 8: Installation Clearances

    Installation Clearances WARNING Before installing, check for the following: Install in accordance with relevant building and mechanical codes, as well as any local, state or national regulations, or in the absence of local and state codes, to the National Fuel Gas Code ANSI Z223.1/NFPA 54 –...

  • Page 9: Outdoor Installation

    Outdoor Installation Item Check Illustration • Maintain the following clearance from both combustible 24" (600mm) and non-combustible materials. or more 36" (900mm) or more 3" (75mm) or more • When installing the unit in a common side corridor, provide 47" (1,190mm) or more a clearance of 47"...
  • Page 10 Clearance Requirements from Vent Terminations to Building Openings <When supplying combustion air from the outdoors (Direct Vent)> * All clearance requirements are in accordance with ANSI Z21.10.3 and the National Fuel Gas Code, ANSI Z223.1 and in Canada, in accordance with the Natural Gas and Propane Installation Code CSA B149.1.
  • Page 11 Clearance Requirements from Vent Terminations to Building Openings <Other than Direct Vent> * All clearance requirements are in accordance with ANSI Z21.10.3 and the National Fuel Gas Code, ANSI Z223.1 and in Canada, in accordance with the Natural Gas and Propane Installation Code CSA B149.1.

  • Page 12: Installation

    Installation • The weight of the device will be applied to the wall. If the strength of the wall is not sufficient, 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.
  • Page 13 3. Affix the Mounting Bracket (Lower) to the wall by 2 screws. Mounting Bracket (Lower) Anchoring Screw Elevation Adjustment Above 2,000ft • Adjust the dip switches as illustrated in the table to the below if this water heater is installed at an altitude of 2000 ft.

  • Page 14: Venting The Water Heater

    • This appliance is suitable for Common Vent System. 51' (15.3m) 93' (27.9m) To make a Common Vent System, optional accessories are required. Contact Noritz * Not including the termination America at http://support.noritz.com/ or 1-866- 766-7489 for details. Refer to pages 20 for max. vent lengths •...
  • Page 15 Maximum Vent Length Adjustment Dip switches The unit can be adjusted to accommodate longer vent runs; refer to the below table to find the maximum vent length based on the number of elbows. Adjust the dip switches according to the vent condition noted in the tables below.
  • Page 16 Venting With PVC or CPVC This appliance can be vented with non cellular core plastic pipe materials as specified in the below table. Vent installations in Canada which utilize plastic vent systems must comply with ULC S636. Item Material United States Canada Schedule 40 PVC ANSI/ASTM D1785...

  • Page 17: Vent Pipe Installation

    Vent Pipe Installation Horizontal Vent Termination - PVC/CPVC Material Only (when using PVT-HL termination) Ceiling Exterior Wall PVT-HL Hanger Straps Intake 3"(75mm) * 1' Minimum Exhaust Slope the Vent **2"×3" Increaser 3" (75mm) coupling Upward 12"(300mm) Exhaust Intake above grade or above snow line 3"...
  • Page 18 Vent Pipe Installation Alternate Horizontal Vent Termination- PVC/CPVC Materials Only * When 3’ (0.9m) distance between Intake and Exhaust cannot be ensured. * Can not use Hood termination (PVT-HL) * Insert the bird screen. 90° elbow vertical setting (downward). * Ensure at least 3ft (0.9m) or more distance between the near edge of the air intake pipe or exhaust pipe to the inside corner of a wall.
  • Page 19 PVC Concentric Termination • The concentric termination may be shortened, but not lengthened from its original factory supplied length. • 2"(50mm) or 3" (75mm) PVC or CPVC pipe may be used with the concentric termination. Maintain the same vent pipe diameter from the water heater flue to the termination. •...
  • Page 20 Vertical Plastic Rain Cap* (PRC-1) PRC-1 *Not supplied with water heater, order separately. 3" (75mm) pipe 2"×3" increaser coupling Increaser coupling** 12" (30cm) 2" (50mm) pipe **Not supplied with water heater, order separately. 3" (75mm) pipe and 2"×3" increaser coupling requires when using PRC-1. PVC-2CT PVC-3CT*** Intake...
  • Page 21 Refer to page 28 for the location of the dip switch bank. • SV Conversion kit SV-CK-2 is required for the air intake. • Noritz recommends to install a Carbon Monoxide Alarm in installation site of the unit when supplying combustion air from the indoors.

  • Page 22: Combustion Air

    EZ111DV (GQ-C3259WX-FF US) : 70 cubic feet of fresh air per minute EZ98 (GQ-C2859WX-FF US) : 63 cubic feet of fresh air per minute • If the unit is installed in a mobile home, outdoor air must be supplied. The usage of the "-SV"...
  • Page 23 Indoor Installation when using 2" flexible polypropylene WARNING CARBON MONOXIDE POISONING Follow all vent system requirements in accordance with relevant local or state regulation, or, in the absence of local or state code, in the U.S. to the National Fuel Gas Code ANSI Z233.1/NFPA 54 –...
  • Page 24 General Requirements Maximum Vent Lengths • Flex Vent 2" Conversion Kit (EZ2-CK) must be • Maximum Vent Length varies according used when using 2" flexible polypropylene pipe to Vent Kit model. for vent pipe installation. Refer to the instructions provided with Flex Vent 2" Conversion Kit for Check the Vent Kit model.
  • Page 25 Installation of Flex Vent 2" Conversion Kit 1. Secure the "Flex Vent 2" Conversion Kit" to top of the water heater*. Flex Vent 2" Conversion Kit (EZ2-CK) * Refer to the instructions provided with "Flex Vent 2" Conversion Kit" for additional detail. (Note): Flex Vent 2"...
  • Page 26 WARNING This unit is suitable only for vertical vent. Vertical Vent Termination with Polypropylene N-Flex system • Terminate at least 3’ (0.9m) from the combustion air intake of any appliance Storm and any other building opening. Collar Roof Enclose exterior vent systems below •...
  • Page 27 • If combustion air will be provided through a duct, size the duct to provide as below. EZ111DV (GQ-C3259WX-FF US) : 70 cubic feet of fresh air per minute EZ98DV (GQ-C2859WX-FF US) : 63 cubic feet of fresh air per minute • If the unit is installed in a mobile home, outdoor air must be supplied.
  • Page 28 Outdoor Installation • When installing this water heater outdoors, must be used "Outdoor Vent Cap (VC-6)". • Disconnect power and then turn ON dip switch #2 if outdoor installation. • Make sure the clearance of the water heater in accordance with page 9 (Outdoor Installation). * Dip switch No.2 is turned on.

  • Page 29: Gas Piping

    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. Gas Type The gas type indicated on the water heater rating plate (NG or LP) must match the type of gas being supplied to the water heater.
  • Page 30 Refer to the NFPA 54 for details. Please contact Noritz for details. For corrugated stainless steel tubing (CSST) capacity tables, please consult with the manufacturer.
  • Page 31 BTU/Cubic Foot ratings. For simplification of your calculations, 1 Cubic Foot of Gas is approximately equivalent to 1000 BTU. Sample Gas Line Instructions 1. Size each outlet branch starting from the furthest Noritz Condensing Tankless Gas Water Heater using the Btuh required and the length from the meter. Barbecue (180,000 or 199,900 Btuh) 2.
  • Page 32 Table 3. Maximum Undiluted Propane (LP) Delivery Capacity in Thousands of BtuH (0.5” WC Pressure Drop) [Schedule 40 Metallic Pipe] Length (including fittings) Pipe 100' 125' 150' 175' 200' Size (3m) (6m) (9m) (12m) (15m) (18m) (24m) (30m) (38m) (45m) (53m) (60m) 1/2"...

  • Page 33: Water Piping

    Installation and service must be performed by a qualified plumber. In the Water Piping Commonwealth of Massachusetts, this product must be installed by a licensed plumber or gas fitter in accordance with the Massachusetts Plumbing and Fuel Gas Code 248 CMR Sections 2.00 and 5.00. Observe all applicable codes. This appliance is suitable for combination potable water and space heating applications.
  • Page 34 : 200 mg/L (12 gpg) or less Damage to the water heater as a result Aluminum : 0.05 to 0.2 mg/L or less of the below is not covered by the Noritz Chloride : 250 mg/L or less America Limited Warranty.

  • Page 35: Water Treatment System

    * # = 1, 2, 3, 4 ... 9 Damage to the water heater as a result of the items below is not covered by the Noritz America Limited Warranty. • Water in excess of 12 gpg (200mg/L) of hardness •...

  • Page 36: Water Heater

    How to select the Service Reminder This water heater is equipped with an automatic service reminder to announce for flushing the Heat Exchanger. The factory default of this service reminder is OFF. The customer or installer needs to set the service reminder to ON or OFF.
  • Page 37 Damage to the water heater due to Scale Build-up is not covered by the water heater's warranty. To clear the alarm code “C1#*”, the Heat Exchanger must be flushed. If the alarm code “C *” is displayed and flashing on the Remote Controller, please contact Noritz America (866-766-7489).

  • Page 38: Flushing The Heat Exchanger

    3. Clean the water heater with fresh water for 3 minutes or more. (Needs to have enough time to clean the water heater.) NOTE : If EZ98DV(GQ-C2859WX-FF US ) or EZ111DV(GQ-C3259WX-FF US) Water is installed, the unit has the “Water Drain Valve” from the Drain Valve bottom of the water heater.
  • Page 39 The Code “C00” 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. Please contact Noritz America if more information is needed for flushing. (Phone # : 866-766-7489)

  • Page 40: Condensate Piping

    Condensate Piping CAUTION Due to the acidic nature of the condensate, be sure to properly drain and if necessary, treat the condensate prior to disposal. Damage caused by improperly handled condensate is not covered by the warranty. • This water heater is a high efficiency, fully condensing appliance which produces acidic condensate during operation.
  • Page 41 Condensate piping to floor drain Condensate piping with pump DO NOT ADD DO NOT ADD ANY VALVES ANY VALVES 1/2" PVC pipe 1/2" PVC pipe 1/2" PVC elbow 3/8" ID tubing* Slope pipe downwards The end of the drain pipe 1/4"...

  • Page 42: Plumbing Applications

    (Model L6006A or L6006C) Combination Potable Water and Space Heating System Notes: 1. Noritz recommends 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.

  • Page 43: Electrical Wiring

    Electrical Wiring Consult a qualified electrician for the electrical work. Do not connect electrical power to the unit until all electrical wiring has been completed. Disconnect Power This appliance must be electrically grounded in accordance with local codes, or in the absence of local codes, with the National Electrical Code, ANSI/NFPA 70.

  • Page 44: Remote Controller

    Remote Controller • Applicable Model * Remarks [125 °F / 55 °C] RC-7651M Remote controller Celsius display mode Fahrenheit display mode Install the remote controller according to the instructions in the Installation Guide (p. 51). * Only one remote controller can be connected to the water heater. A malfunction may occur if two or more remote controllers are connected.
  • Page 45 Changing Other Features Adjusting the Temperature Display Note: The setting must be done within the first 10 minutes of connecting electrical power to the water heater. Table of Setting Items Item No. Item Choices (factory defaults shaded) Celsius / Liter °F / gal °C / L Fahrenheit / Gallon...

  • Page 46: Pump Wiring

    * This feature is not available when using the Quick Pump Wiring Connect Multi System feature. Connecting the pump control wire 1. Leave enough slack so that the pump control wires will stay connected if the unit is removed from the Pump Control wall.
  • Page 47 For Quick Connect Multi System Installation Connecting Quick Connect Cord-2 use part #QC-2 only. (sold separately). Caution The wire coloring on the Quick Connect Cord-2 will not be the same as the wire coloring of the connection plug inside the unit. 1.Red 1.Red 1.White...

  • Page 48: Maintenance

    Maintenance Periodically check the following to ensure proper operation of the water heater. • The venting system must be examined periodically by a qualified service technician to check for any leaks or corrosion. • The burner flame must be checked periodically for a proper blue color and consistency. •...

  • Page 49: Lighting Instructions

    CAUTION Handling after trial operation • If the unit will not be used immediately, close off all gas and water shutoff valves, drain all of the water out of the unit and the plumbing system to prevent the unit and system from freezing, and bleed the gas out of the gas line.
  • Page 50 Dimensions < inch (mm) > 17.7" (450mm) 13.4" (340mm) 2.1" (53mm) HOT WATER OUTLET (3/4”) WATER DRAIN VALVE COLD WATER INLET (3/4”) WATER DRAIN VALVE (WATER FILTER) WALL MOUNTING BRACKET (INCLUDED ACCESSORY) 0.2" (5mm) 12.8" (325mm) 18.5" (471mm) 3.5" (88mm) 17.8"...
  • Page 51 Remote Controller RC-7651M carefully before carrying out installation. Installation Guide NORITZ AMERICA CORPORATION Note Do not connect power to the water heater before the remote controller has been properly installed. Recommended installation location of the remote controller is in a bathroom.

  • Page 52: Installation

    Installation 3. Remove the cover of the remote control, 1. Apply Wall Packing to the rear side of the mark the location of the screw holes, and remote controller. drill holes for the wall anchors. 2. Connect the remote controller wires to the separate remote controller cord.

  • Page 53: Post Installation Checks

    Requests to Installers Remote Controller ● In order to use the water heater safely, read this installation guide carefully, and follow the installation instructions. RC-9018M ● Failures and damage caused by erroneous work or work not as instructed in this manual are not covered by the warranty. ● Refer to the Installation Manual provided with the water heat- er for complete installation details. Installation Guide NORITZ AMERICA CORPORATION In 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. CAUTION CAUTION indicates a potentially hazardous situation which, if not avoided, may result in minor or moderate injury. CAUTION The remote controller is not water resistant. Keep it dry. CAUTION • Do not connect power to the system unit until the remote controller installation is complete. • Be sure to fasten the mounting screws tightly by hand so that the remote controller will be secure. * Do not use electric drivers, impact drivers and so forth. Tightening with excessive force may cause the mounting bracket to be damaged and lead to failures. • Install the remote controller on an even wall surface.
  • Page 54 Included Parts List (The value in ( ) indicates the quantity.) Mounting Machine Raised countersunk Raised countersunk Remote Controller Wall anchor bracket screw head wood screw head screw (For junction box installation) Notes on the Installation Location Connection of Remote Controller Cord White Connector To Remote controller • The remote should be installed in an easily accessible location. Y-shaped terminals To Water heater • Avoid installing in a place where water (two-core) or steam can come into contact with the * Confirm the connection with the labels at...
  • Page 55 5. Attach the remote controller to the mounting 2. Remove the decorative frame from the remote bracket. Insert the bottom of the remote controller. (The remote controller is inserted controller into the groove at the bottom of the in the decorative frame.) bracket and push in the 2 hooks on top of the remote controller completely. * If it is difficult to attach, do not try to force it Main remote as it may result in broken hooks. Check for controller body proper alignment in the groove or for loose wires obstructing the remote controller.

  • Page 56: Optional Remote Controller

    Optional Remote Controller • Applicable Model * Remarks [125 °F / 55 °C] RC-9018M Remote controller Celsius display mode Fahrenheit display mode Install the remote controller according to the instructions in the Installation Guide. (p. 53). * Only one the remote controller can be connected to the water heater. A malfunction may occur if two or more remote controllers are connected. * The water heater has been factory set to allow a maximum temperature setting of [120°F / 50°C]. To access higher temperature settings through the remote controller, follow the below steps. <When setting the maximum temperature to [125 -140°F / 55-60°C]> 1. Turn the water heater off by pressing the Power On/Off Button on the remote controller. 2. Press the MENU Button inside the remote cover, select "Misc settings" using the / Buttons. 3. Press the ENTER Button, the "Misc settings" screen appears on the display. 4. Select "Max set Temp" using the / Buttons. 5. Press the ENTER Button, [120°F / 50°C] appears on the display. 6. Set the upper limit of the hot-water supply temperature to [125°F, 130°F, 135°F or 140°F / 55°C or 60°C] using the / Buttons. 7. Press the ENTER Button, "Set complete" appears on the display and then returns to the "Misc settings" screen. 8. To put the water heater back into operation, press the Power On/Off Button on the remote controller. To keep the water heater off, either press the MENU Button or let the unit sit for 20 sec. to return to the original display. DANGER • When changing the temperature, make sure to confirm with the customer that the temperature of the hot water will be very high and that there is a risk of scalding. • Hot water heater temperatures over 125 °F (52 °C) can cause severe burns instantly or death from scalding.
  • Page 57 Changing Other Features Adjusting the Temperature / Water Quantity Display Note: The setting must be done within the first 10 minutes of connecting electrical power to the water heater. Table of Setting Items Item Choices (factory defaults shaded) Celsius / Liter °F / gal °C / L Fahrenheit / Gallon (Fahrenheit / Gallon) (Celsius / Liter) display mode. Remote Controller Power On/Off Button Display MENU Button ENTER Buttton ▲/▼ Buttons Setting Procedure 1. Turn the water heater off by pressing the Power On/Off Button on the remote 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, "Set complete Please wait..." appears on the display for 5seconds and then the "Initial settings" screen appears on the display. 8. To confirm the setting, turn the water heater on by pressing the Power On/Off Button on the remote controller.

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Ez98dvGq-c3259wx-ff usEz111dv

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