Noritz NR50-OD Installation Manual Download Page 29

29

Included Parts List

Remote Controller RC-7649M

Installation Guide

For Installers:

  Read this installation guide 

carefully before carrying out 

installation.

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. 

Do not disassemble the remote controller.

Wall Packing

Connecting Wire

Remote Controller

Phillips Roundhead 

Wood Screw

Wall Anchor

                 Part Name
Remote Controller
Wall Packing
Phillips Roundhead Wood Screw
Wall Anchor

Quantity

1
1
2
2

Notes on the Installation 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 con-

troller.

•  Avoid  locations  where  special  chemical 

agents (e.g., benzene, fatty and oily deter-

gents) are used.

•  Avoid  outdoor  installation,  or  installation  in 

an indoor location where it will be exposed 

to direct sunlight.

Connection of Remote Controller Cord

   White Connector    To Remote controller

 

 Y-shaped terminals    To Water heater

 (two-core)

*  Confirm the connection with the labels at 

both ends of the remote controller cord. 

•  A 26' cord can be purchased separately 

(Part # RC-CORD26).  

•  The remote controller cord can be ex-

tended up to 83 ft. by splicing the cord and 

using 18 gauge wire to extend the cord to 

the appropriate length.

Summary of Contents for NR50-OD

Page 1: ...ge personal injury or death NORITZ AMERICA CORPORATION Installation Manual TANKLESS GAS WATER HEATER DANGER indicates an imminently hazardous situation which if not avoided will result in death or ser...

Page 2: ...t Part Shape Q ty 1 1 Remote Controller Cord 26ft 1 Isolation Valves includes pressure relief valve Pipe Cover PC 1S 1 1 Cross Recess Head Screw OD type only Owner s Guide Warranty Installation Manual...

Page 3: ...he water with approved methods in order to ensure full warranty coverage WARNING CAUTION Check the Gas Check that the rating plate indicates the correct type of gas Check that the gas supply line is s...

Page 4: ...upply opening causing the performance of the device fan to drop and incomplete combustion to occur as a result Avoid installation in places where special chemical agents e g hair spray or spray deterg...

Page 5: ...outdoor instal lation use high temperature sealant around the flue collar for rain protection Avoid installation where the unit will be exposed to excessive winds Before installing make sure that the...

Page 6: ...ore on either side of the unit to facilitate inspection If possible leave 24 or more in front of the unit to facilitate maintenance and service if necessary If possible leave 3 or more above and below...

Page 7: ...84 Maintain the following clearance from both combustible and non combustible materials indicates the distance when installing a heat insu lating board incombustible material other than metal with thi...

Page 8: ...k or paved driveway located on public property Under veranda porch deck or balcony 7 M indicates clearances required in Canada Maintain clearances in accordance with local installation codes and the r...

Page 9: ...ty air inlet into any building 3 above any forced air inlet within 10 Vent Clearances When Heater is In stalled Outdoors With a Vent Cap All clearance requirements are in accordance with ANSI Z21 10 3...

Page 10: ...For Installations in Canada clearances are as follows To windows doors gravity air inlets 36 To forced air inlets 6 3 1 1 1 Outdoor Clearances to Opening into Any Building 1 below 1 horizontally from...

Page 11: ...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...

Page 12: ...nt to this appliance Consult the manufacturer s instructions for the proper appliance adapter Vent Piping Noritz N Vent is suggested for the vent system If N Vent is not used a UL listed category III...

Page 13: ...section is recommended to prevent debris from falling into the water heater Install a condensation drain in the horizontal section of the venting For installations in tight spaces where there is not...

Page 14: ...t is installed in a mechanical closet provide a 24 clearance in front of the unit to the door If combustion air will be provided through a duct size the duct to provide 60 cubic feet of fresh air per...

Page 15: ...the furthest outlet and the Btuh required by everything after that section Sample Gas Line Sample Calculation Outlet A 45 Use 50 50 000 Btuh requires 1 2 Outlet B 40 65 000 Btuh requires 1 2 Section...

Page 16: ...per Hour of Natural Gas 0 60 Specific Gravity 0 5 WC Pressure Drop Length in Feet Pipe Size 3 4 1 1 1 4 1 1 2 2 10 20 30 40 50 60 70 80 90 100 150 200 206 383 614 1261 2934 147 269 418 888 2078 121 2...

Page 17: ...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 of t...

Page 18: ...her means to en sure that the supply water pressure to the inlet of the heater does not fall below 29 psi when the maximum amount of water is being demanded Also install a pressure meter on the inlet...

Page 19: ...ent Device Shutoff Valve Type of Water Hardness Level Treatment Device Flush Frequency Type of Water Hardness Level Treatment Device Flush Frequency Soft 0 1 gpg 1 3 gpg 0 17 mg L None None None None...

Page 20: ...ommends the use of an Isolation Kit with the installation These kits include an integrated shut off and serv ice valve with unions and a pressure relief valve 1 Noritz recommends the use of an Isolati...

Page 21: ...interference and faulty operation Disconnect Power Electrical Shock Hazard Do not turn power on until electrical wiring is finished Disconnect power before servicing Failure to do so may result in de...

Page 22: ...OFF button on the remote controller To keep the water heater off let the unit sit for 30 sec to return to the original display When setting the maximum temperature to 125 160 F 1 Turn the water heater...

Page 23: ...Part RC CORD26 or use 18AWG wire Install according to the National Electrical Code and all applicable local codes Connecting Remote Controller Cord to Unit Keep the remote controller cord away from th...

Page 24: ...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...

Page 25: ...s stop and follow the instruc tions 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...

Page 26: ...0 6 OBLONG HOLE HOT WATER OUTLET 3 4 COLD WATER INLET 3 4 GAS INLET 3 4 WIRING THROUGHWAYS b n k c g n s f r 4 0 5 2 0 3 x 0 5 OBLONG HOLE 4 7 2 0 3 3 2 4 3 3 4 7 3 0 3 x 0 6 OBLONG HOLE 0 4 24 5 0 4...

Page 27: ...OTTOM OFCASE BOTTOM OFCASE VIEW FROM TOP UPPER WALL MOUNT BRACKETS LOWER WALL MOUNT BRACKETS AIR INLET AIR INLET GAS INLET COLD WATER INLET WATER DRAIN VALVE HOT WATER OUTLET WATER FILTER WATER DRAIN...

Page 28: ...ING THROUGHWAYS 13 3 13 1 13 8 20 5 0 4 19 2 0 4 6 7 1 2 0 4 21 4 4 7 2 4 3 3 0 4 4 7 COLD WATER INLET 3 4 HOT WATER OUTLET 3 4 7 0 4 3 1 5 3 8 1 6 GAS INLET 1 2 10 0 3 9 7 2 2 2 VIEW FROM TOP WIRING...

Page 29: ...otes on the Installation 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 con troller Avoid loca...

Page 30: ...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...

Page 31: ...the 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 w...

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