Noritz NRC111OD Installation Manual Download

Page: 37 / 37

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

Display

Power On/Off Button

ENTER Buttton

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.

Remote Controller

▲/▼ Buttons

MENU Button

Item

Choices (factory defaults shaded)

Celsius / Liter

Fahrenheit / Gallon

display mode.

°F / gal

(Fahrenheit / Gallon)

°C / L

(Celsius / Liter)

Summary of Contents for NRC111OD

Page 1: ...tructed 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 fo...

Page 2: ...its but may be necessary for installation Cross Recessed Head Screw Quick Connect Cord QC 2 Q ty Shape Part Part Shape Q ty 1 1 Remote Controller Cord 26ft 8m 1 each Isolation Valves includes pressure relief valve Pipe Cover PC 3S 1 1 Recess Box RB 900 1 Remote Controller Outdoor Junction Box RC 7651M only Owner s Guide Warranty Installation Manual this document Remote Controller RC 9018M 1 1 Neut...

Page 3: ...l Block Cord Connector Cord Connector 3 Quick Connect Multi System Installation The Quick Connect Multi System allows the installation of two units together utilizing only the Quick Connect Cord Typical Plumbing When connecting two units use only a single remote controller Note Connect the remote controller to only one of the units System Diagram Insulate the hot water piping to prevent heat loss ...

Page 4: ...perature of the water supply as unexpected accidents 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 order to ensure full warranty coverage WARNING CAUTION 5 Choosing Installation Site Locate the appliance in an area where leakage from the unit or conne...

Page 5: ...the water heater may cause discoloration of walls and resinous materials or corrosion of aluminum materials Do not locate the vent termination directed towards a window or any other structure which has glass or wired glass facing the termination Install in a location where the exhaust gas flow will not be affected by fans or range hoods Take care that noise and exhaust gas will not affect neighbor...

Page 6: ... width Provide clearance of 24 600mm or more in front of the unit to facilitate inspection and repair Do install the unit in a location where the unit is out of reach such as the wall of the second floor When installing the unit in a common side corridor provide a clearance of 47 1 190mm or more in front of the unit Set the bottom edge of the exhaust port about 84 2 130mm from the corridor floor H...

Page 7: ...dwellings Permitted only if veranda porch deck or balcony is fully open on a minimum of two sides beneath the floor Clearance in accordance with local installation codes and the requirements of the gas supplier Clearance to opposite wall is 24 inches 60 cm 12 in 30 cm 12 in 30 cm 6 in 15 cm for appliances 10 000 Btuh 3kW 12 in 30 cm for appliances 10 000 Btuh 3kW and 100 000 Btuh 30 kW 36 in 91 cm...

Page 8: ...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 electrical wiring gas or water piping while drilling holes Item CAUTION Be sure to do Mounting Bracket upper Anchoring Screw Location of Screw Hole Locati...

Page 9: ...he 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 pressure...

Page 10: ...rding 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 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 sho...

Page 11: ...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 Condensing 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 12: ...at each appliance 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 80 100 125 150 175 200 3m 6m 9m 12m 15m 18m 24m 30m 38m 45m 53m 60m 1 2 291 200 160 137 122 110 101 94 89 84 74 67 3 4 608 418 336 28...

Page 13: ...nnected 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 Massachuse...

Page 14: ...er on the inlet If this is not done local boiling will occur inside the water heater causing abnormal sounds and decreasing the durability of the heat exchanger Freeze Prevention Freezing is prevented within the device automatically unless the outside temperature without wind is below 4 F 20 C If this model is installed in an area where the outside temperature can approach freezing conditions of 4...

Page 15: ...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 this water heater will be installed in an application where the supply water is hard Scale B...

Page 16: ...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 connecte...

Page 17: ...culating pump to circulate the flushing solution through the water heater for 1 hour at a rate of 1 5 gallons 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 no...

Page 18: ...ode 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 is displayed when the Main Water Heater s blue connector is connected is displayed when the Sub Water Heater s blue connector is connected Main Water Heater Sub Water Heater FLUSH Connect Circuit Board Remote Controller Quick Co...

Page 19: ... as short as possible Long runs or applications where the 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 2 GPH from the water heater Horizontal runs must be sloped 1 4 per foot towards the drain or condensate pump The condensate will be discharged by gravity force only Make the drain pipe run as short a...

Page 20: ...NCE 1 2 PVC pipe DO NOT ADD ANY VALVES DO NOT ADD ANY VALVES Condensing Tankless Gas Water Heater Condensing Tankless Gas Water Heater Note If the drain line becomes clogged or frozen condensate will back up into the water heater and a 29 error code will flash on the remote controller ceasing operation If this occurs clear the clog or freeze so that condensate can freely flow Be sure to slope the ...

Page 21: ...mp control requirement in order to maintain the full recirculation waranty 4 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 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 p...

Page 22: ...ply required by the water heater is 120VAC at 60 Hz The power consumption may be up to 303W or higher if using optional accessories Use an appropriate circuit Do not disconnect the power supply when not in use When the power is off the freeze prevention in the water heater will not activate resulting in possible freezing damage Do not let the power cord contact the gas piping Tie the redundant pow...

Page 23: ... On 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 This unit can be programmed so that it will default to one of three temperatures if the remote controller is removed 140 F 60 C 130 F 54 C 125 F 52 C To change the default temperature adjust the dip switches as described below The default temperature is 120 F 50 C 1 Di...

Page 24: ...te controller cord to the terminal block 5 Replace the terminal block cover and install the screw previously removed in step 3 6 Reconnect electrical power to the water heater External connection terminal block Wiring throughway Remote controller cord Changing Other Features Adjusting the Temperature Display Note The setting must be done within the first 10 minutes of connecting electrical power t...

Page 25: ...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 26: ...Clamp Ground wire Connector Use one of the vacant holes 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 B...

Page 27: ... 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 28: ...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 29: ...8 70mm 1 4 36mm 0 4 10mm 1 7 44mm 26 2 665mm 23 1 586mm 24 2 615mm 24 0 611mm 2 4 61mm 2 1 53mm 1 6 40mm 0 4 10mm 9 4 240mm 0 5 13mm 1 1 28mm 1 6 42mm 17 7 450mm 18 3 464mm 10 5 267mm 16 9 428mm 3 9 99mm 17 6 448mm WIRING THOROUGHWAY AC120V 5 3 135mm 2 8 71mm 6 7 171mm 7 0 177mm COLD WATER INLET 3 4 GAS INLET 3 4 14 2 362mm 5 7 146mm 3 9 98mm HOT WATER OUTLET 3 4 CONDENSATE DRAIN 1 2 WIRING THOROU...

Page 30: ...es 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 controller 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...

Page 31: ...cord 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 remote control to the wall and replace the cover Remote Controller Cord Wall Packing take off the paper Remote Control Wires Rear Side of Remote Controller ...

Page 32: ...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 wall Wall packing Wall pipe Take out the pipe about 3 4 from the wall Junction Box Box Nut Junction Box Packing Take off the paper 5 Slide the box nut over the remote controller wires and screw it onto...

Page 33: ...er 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 The remote controller is not water resistant Keep it dry CAUTION Do not connect power to the system unit until the remote controller in...

Page 34: ...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 35: ...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...

Page 36: ...R 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 ...

Page 37: ... 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 s...

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