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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 fi re 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 fi ll 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
SBA8745
Rev. 11/11
NRC1111-DV
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
F O R U S E I N R E S I D E N T I A L O R M A N U FA C T U R E D H O M E
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
CSA B149.1, Natural Gas and Propane Installation Code (NSCNGPIC).
Low NOx
When applicable, installation must conform with the Manufactured
Home Construction and Safety Standard, Title 24 CFR, Part 3280 or the
Approved by
Canadian Standard CAN/CSA-Z240 MH Mobile Homes, Series M86.
SCAQMD
Noritz America reserves the right to discontinue, or change at any
14 ng/J or 20 ppm
time, the designs and/or specifi cations of its products without notice.
(Natural Gas Only)
(Indoor Installation)
Ground
CAUTION
NORITZ AMERICA
CORPORATION
Be sure to do
*SBA8745*
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Summary of Contents for Noritz ecOTOUGH NRC1111-OD-LP
- Page 1 Approved by Canadian Standard CAN/CSA-Z240 MH Mobile Homes, Series M86. SCAQMD Noritz America reserves the right to discontinue, or change at any 14 ng/J or 20 ppm time, the designs and/or specifi cations of its products without notice. (Natural Gas Only) SBA8745 Rev.
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Page 2: Included Accessories
Included Accessories The following accessories are included with the unit. Check for any missing items before starting installation. Q’ty Q’ty Part Shape Part Shape Owner's Guide, Warranty, Tapping Screw Installation Manual each (this document) Remote Controller Remote Controller (See p. 28) Cord (6ft (2m)) The accessories listed below are not Optional Accessories... -
Page 3: 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 2-18" (50 - 457mm) apart from each other to ensure the cord will be able to reach between the units. -
Page 4: Before Installation
Before Installation DANGER Checkup • Check the fi xing brackets and vent pipe yearly for damage or wear. Replace if necessary. WARNING Precautions on Vent Pipe Replacement • The vent system will almost certainly need to be replaced when this appliance is being installed. Only use vent materials that are specifi... -
Page 5: 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 fl oors of the structure. When such locations cannot be avoided, it is recommended that a suitable drain pan, adequately drained, be installed under the appliance. - Page 6 The Commonwealth of Massachusetts: 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 or phone numbers listed below: Noritz N-Vent www.noritz.com...
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Page 7: 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 8 Item Check Illustration • There must be a clearance of 24" (600mm) or more in front of the Flue terminal. • This restriction will not be applied to an area where an effective shield makes a There must be no 12"...
- Page 9 Clearance Requirements from Vent Terminations to Building Openings * 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 NSCNGPIC. Vent Terminal Area Where Terminal is Not Permitted Air Supply Inlet Outdoor Combustion Air Indoor Combustion Air...
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Page 10: Securing To The Wall
Installation Securing to the wall • The weight of the device will be applied to the wall. If the strength of the wall is not 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. - Page 11 Filling the condensate trap with water The condensate trap can be fi lled before connecting the vent pipe. Filling the condensate trap before vent pipe installation. Prior to initial start up, make sure that you fi ll the condensate trap with water. DANGER This is to prevent dangerous exhaust gases from entering the building.
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Page 12: Vent Pipe Installation
Vent Pipe Installation (Indoor Installation Only) 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 Be sure to do Z233.1/NFPA 54 –... - Page 13 Maximum Vent Length Adjustment Dipswitches The unit can be adjusted to accommodate longer vent runs; refer to the below table to fi nd 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 14 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 15 Vent Pipe Installation Horizontal Vent Termination- PVC/CPVC Materials Only • As illustrated on the left, make sure to keep a distance of 3' (0.9m) or wider between the intake and exhaust when installing the vent piping. • The PVT-HL termination may be used in place of elbows as the horizontal vent terminations.
- Page 16 Horizontal Vent Termination- 3" (75m) Concentric PVC/CPVC Termination • The concentric termination may be shortened, but not lengthened from its original factory supplied length. Hanger The concentric termination may only be used 3" (75mm) or Straps for horizontal terminations. 4" (100mm) 1"...
- Page 17 Vent Pipe Installation (When supplying combustion air from the indoors (SV, non-direct vent)) * Dip switch No.3 is turned on. • Disconnect power and turn ON dip switch 3 if combustion air will be supplied form the indoors as illustrated to the right. Refer to page 28 for the location of the dip switch bank.
- Page 18 Supply combustion air to the units as per the National Fuel Gas Code, ANSI Z223.1 Combustion Air and in Canada, in accordance with CSA-B149.1. Provide adequate combustion air so as to not create negative pressure within the building. • Provide two permanent openings to allow circulation of combustion air.
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Page 19: Gas Piping
Instructions Sample Gas Line 1. Size each outlet branch starting from the furthest Noritz Condensing Tankless Gas Water Heater using the Btuh required and the length from the Barbecue (199,900 Btuh) (50,000 Btuh) meter. - Page 20 Gas Line Sizing for a Noritz Condensing Tankless Gas Water Heater Adapted from UPC 1997 Maximum Natural Gas Delivery Capacity in Cubic Feet per Hour (0.60 Specific Gravity, 0.5" WC Pressure Drop) Length in Feet Pipe 10' (3m) 20' (6m) 30' (9m) 40' (12m) 50' (15m) 60' (18m) 70' (21m) 80' (24m) 90' (27m) 100' (30m) 125' (37.5m) Size 1/2"...
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Page 21: Water Piping
Installation and service must be performed by a qualifi ed plumber. In the Water Piping Commonwealth of Massachusetts, this product must be installed by a licensed plumber or gas fi tter 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 22 Supply water piping Hot water piping • Do not use PVC, iron, or any piping which has been • Do not use lead, PVC, iron or any piping which treated with chromates, boiler seal or other chemicals. has been treated with chromates, boiler seal or other chemicals.
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Page 23: Water Treatment System
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. -
Page 24: 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 effi ciency, fully condensing appliance which produces acidic condensate during operation. - Page 25 Condensate piping to floor drain Condensate piping with pump NORITZ NORITZ Condensing Condensing Tankless Gas Tankless Gas Water Heater Water Heater DO NOT ADD DO NOT ADD ANY VALVES ANY VALVES 1/2" PVC pipe 1/2" PVC pipe 1/2" PVC elbow 3/8"...
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Page 26: 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 27: Electrical Wiring
Consult a qualifi ed electrician Electrical Wiring 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 28: Remote Controller
Remote Controller • Applicable Model Noritz Condensing Tankless Gas Water Heater * Remarks [125 °F / 55 °C] Celsius display mode RC-7651M Remote controller Fahrenheit display mode Install the remote controller according to the instructions in the Installation Guide (p. 35). - Page 29 Connecting Remote Controller Cord to Unit • Keep the remote controller cord away from the freeze prevention heaters in the unit. • Tie the redundant cord outside the water heater. Do not put the extra length inside the equipment. • The remote controller cord can be extended up to 300' (90m) with 18AWG wire. •...
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Page 30: 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 31 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...
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Page 32: Maintenance
Maintenance Periodically check the following to ensure proper operation of the water heater. • The venting system must be examined periodically by a qualifi ed service technician to check for any leaks or corrosion. • The burner fl ame must be checked periodically for a proper blue color and consistency. •... -
Page 33: 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 34 Dimensions < inch (mm) > 17.7" (450mm) 4 - Ø0.5" (Ø13mm) 6 - 0.24" x 0.4" (6 x 10mm) OBLONG HOLE 18.3" (464mm) 6.7" (170mm) 17.6" (448mm) 5.5" (140mm) 5.9" (150mm) 9.1" (232mm) 9.4" (240mm) 0.4" (10mm) 3.9" (100mm) Ø4.5" (Ø114mm) Ø4.5"...
- Page 35 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.
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Page 36: 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. 2. Connect the remote controller wires to the drill holes for the wall anchors. 4. -
Page 37: Optional Remote Controller
● Refer to the Installation Manual provided with the water heater 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. - Page 38 Included Parts List (The value in ( ) indicates the quantity.) Mounting Raised countersunk Raised countersunk Machine 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 •...
- Page 39 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 contoller 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.
- Page 40 Optional Remote Controller • Applicable Model Noritz Condensing Tankless Gas Water Heater * Remarks [125 °F / 55 °C] Celsius display mode RC-9018M Remote controller Fahrenheit display mode Install the remote controller according to the instructions in the Installation Guide. (p. 37).
- Page 41 Changing Other Features Adjusting the Temperature / Water Quantity Display Note: The setting must be done within the fi rst 10 minutes of connecting electrical power to the water heater. Table of Setting Items Item Choices (factory defaults shaded) Celsius/Fahrenheit °F (Fahrenheit) / gal °C (Celsius) / L display mode.
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