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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.

Prohibited

Disconnect
Power

Ground

Be sure to do

WARNING:

 If the information in this manual is not followed exactly, a fire or explosion may result 

causing property damage, personal injury or death.

NORITZ AMERICA 
CORPORATION

 Installation Manual

CONDENSING TANKLESS GAS WATER HEATER

                            NRC711-OD

 

(Outdoor Installation)

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.

DANGER

WARNING

CAUTION

SBB8068

Rev. 01/14

Requests to Installers

•  In order to use the water heater safely, read this installation manual carefully, and follow the in-

stallation 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.

CAUTION

Low NOx 

Approved by 

SCAQMD

14 ng/J or 20 ppm

(Natural Gas Only)

*SBB8068*

FOR USE IN RESIDENTIAL 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 Pro-

pane Installation Code (NSCNGPIC).

Noritz America reserves the right to discontinue, or change at 

any time, the designs and/or specifications of its products with

-

out notice.

Содержание ecoTOUGH NRC711-OD

Страница 1: ...tion manual carefully and follow the in stallation 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 ins...

Страница 2: ...10ft 3m 1 2 Optional Accessories The accessories listed below are not included with the units but may be necessary for installation Cross Recessed Head Screw Q ty Shape Part Part Shape Q ty 1 Remote C...

Страница 3: ...s may occur as a result Check Water Supply Quality If the water supply is in excess of 12 grains per gallon 200 mg L of hardness acidic or otherwise impure treat the water with approved methods in ord...

Страница 4: ...heat Also consider the surrounding trees and animals The heat and moisture from the water heater may cause discoloration of walls and resinous materials or corrosion of aluminum materials Do not locat...

Страница 5: ...nspection and repair Do install the unit such as the wall of the second floor where the unit is out of reach When installing the unit in a common side corridor provide a clearance of 47 1 190mm or mor...

Страница 6: ...rance to service regulator vent outlet J Clearance to nonmechanical air supply inlet to building or the combustion air inlet to any other appliance K Clearance to a mechanical air supply inlet L Clear...

Страница 7: ...o 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 Locati...

Страница 8: ...er heater as with any gas appliance is the sole responsibility of the installer The installer must be professionally trained to do such work and must always follow all local and national codes and reg...

Страница 9: ...ing to total btuh demand of the building and 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...

Страница 10: ...tlet C Outlet D Outlet E Section 4 Table 2 For 8 WC 10 5 WC initial supply pressure Maximum Natural Gas Delivery Capacity 3 0 Pressure Drop Values in Table are in Cubic Feet of Gas per Hour 0 60 Speci...

Страница 11: ...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 Leng...

Страница 12: ...be connected to any heating system or components previ ously 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 o...

Страница 13: ...r resistance Use shower heads with low pressure loss If necessary use a pump or other means to ensure that the supply water pressure to the inlet of the heater does not fall below 29 PSI when the maxi...

Страница 14: ...Install Noritz Isolation Valves to allow for flushing Flushing is required if a water treatment device is not installed Suggested Suggested Install Noritz Isolation Valves to allow for flushing Flushi...

Страница 15: ...nearest drain is above the water heater will require the use of a condensate pump Size the pump to allow for a maximum condensate discharge of 0 8 GPH from the water heater Horizontal runs must be slo...

Страница 16: ...n of piping and form Condensate piping to floor drain Condensate piping with pump Slope pipe downwards 1 4 per foot or more The end of the drain pipe must have an air gap 1 or more USE NON CORROSIVE M...

Страница 17: ...ve with unions and a pressure relief valve 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 pre...

Страница 18: ...The electrical supply required by the water heater is 120VAC at 60 Hz The power consumption may be up to 182W Use an appropriate circuit Do not disconnect the power supply when not in use When the po...

Страница 19: ...er heater back into operation press the Power On Off Button on the optional remote controller To keep the water heater off let the unit sit for 30 sec to return to the original display When changing t...

Страница 20: ...On Off Button Flow Meter Alarm Set buttton Setting Button Remote Controller Setting Procedure 1 Turn the water heater off by pressing the Power On Off Button on the remote controller 2 Disconnect the...

Страница 21: ...efore opening the relief valve and make sure that water draining out of the valve will not cause any damage If the relief valve discharges periodically it may be due to thermal expansion in a closed w...

Страница 22: ...s stop and follow the instructions on page 3 of Owner s Guide 6 Turn the gas control manual valve counterclockwise to the on position 7 Turn on electric power to the unit 8 The unit will now operate w...

Страница 23: ...90mm 3 0 3 0 6 6 5 16 5mm OBLONG HOLE 4 0 5 13mm WATER DRAIN VALVE HOT WATER OUTLET CONDENSATE DRAIN WATER DRAIN VALVE COLD WATER INLET WIRING THROUGHWAY GAS INLET AC120V WATER DRAIN VALVE WATER FILT...

Страница 24: ...Location The remote should be installed in an easily accessible location Avoid installing in a place where water or steam can come into contact with the controller Avoid locations where special chemi...

Страница 25: ...ord Phillips Roundhead Wood Screw Wall Anchor 3 Remove the cover of the remote control mark the location of the screw holes and drill holes for the wall anchors 4 Insert the wall anchors screw the rem...

Страница 26: ...he wall pipe containing the remote controller wires through the hole 4 Slide the junction box packing and the junction box over the remote controller wires and wall pipe protruding from the outside wa...

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