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Noritz ecoTough NRC83-OD, Field Manual

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NORITZ America Corporation

Gas Water Heater

NRC83 (-DV, -OD)
NRC98 (-DV, -OD)
NRC1111/NCC1991(-DV,-OD)
NR981/NC199(-DVC,-OD,-SV)
NR83-DVC

Field Manual

•

  R e f e r  t o  t h i s  m a n u a l  w h e n e v e r  p e r f o r m i n g  s e r v i c e  o r 

maintenance on this appliance.

•

  This manual will be used for service technician training seminars.

•

  The  specifications  and  descriptions  in  this  manual  may  be 

changed without prior notice.

•

  For  further  assistance,  contact  Noritz  Technical  Support  at 

1-866-766-7489.

Do  not  short  circuit  any  safety  device  on 
this appliance

Rev: October, 2012         

Contents

Important Safety Information .................................................................................................... 2

1.  Features .............................................................................................................................. 3

2.  Speci

fi

cations/Performance Table ....................................................................................... 4

3.  Dimensions ......................................................................................................................... 7

4.  Components ....................................................................................................................... 9
5.  Troubleshooting .................................................................................................................. 26

•

 Error Codes and Checkpoints ......................................................................................... 26

•

 Remote Controller ........................................................................................................... 27

•

 Displaying Maintenance Monitors ................................................................................... 27

•

 Maintenance Monitor List ................................................................................................ 29

•

 Gas Line Requirements ................................................................................................... 26

• 

Water Treatment ............................................................................................................. 32

• Periodic lnspection 

 ......................................................................................................... 33

• Periodic Maintenance ........................................

............................................................. 34

•

 Changing Default Temperature Setting ........................................................................... 36

6.  Installation Check .............................................................................................................. 40

KS-11-0004

Summary of Contents for ecoTough NRC83-OD

Page 1: ...e For further assistance contact Noritz Technical Support at 1 866 766 7489 Do not short circuit any safety device on this appliance Rev October 2012 Contents Important Safety Information 2 1 Features 3 2 Specifications Performance Table 4 3 Dimensions 7 4 Components 9 5 Troubleshooting 26 Error Codes and Checkpoints 26 Remote Controller 27 Displaying Maintenance Monitors 27 Maintenance Monitor Lis...

Page 2: ...ice on this appliance If a safety device is not functioning properly replace the part Do not under any cir cumstances short circuit the part Exhaust and gas leakage caution Warning Always check for leaks when installing or modifying the exhaust vent or gas piping 2 Post Service Checks Check parts for leaks Caution e h t r e h t e h w f o s s e l d r a g e r s k a e l t s u a h x e r o r e t a w s ...

Page 3: ...Quick Connect Multi System only one remote controller will be installed 3 Temperature Lockout Function The remote controller can be set to restrict the maximum allowable temperature setting for added safety See Changing Default Temperature Setting section for details 4 Elevation Adjustment The water heater can be quickly configured for installations above 2000 by simply adjusting dip switches insid...

Page 4: ...ry Heat Exchanger Secondary Heat Exchanger Supply Consumption Power Vented NG 64W LP 68W Freeze Prevention 203W Specification Direct Ignition 15 150 psi 0 5 GPM 2 L min 24 2 615mm x 18 3 464mm x 9 4 240mm 58 lbs 57 lbs 0 5 Gallon 1 8L 3 4 3 4 3 4 1 2 Threaded 120 VAC 60Hz NG 58W LP 64W Freeze Prevention 213W Zincified Steel Plate Polyester Coating PVC Stainless Steel Copper Sheeting Copper Tubing St...

Page 5: ...city Consumption Installation Outdoor Wall Mounted Air Supply Exhaust 23 6 Height x 13 8 Width x 11 0 Depth 54 lbs 58 lbs Water Inlet Hot Water Outlet Gas Inlet Supply NG 65W NG 65W NG 80W LP 69W LP 67W LP 83W Casing Flue Collar Heat Exchanger Anchoring Screws Item Model Name Type Ignition Operating Pressure Water Holding Capacity Safety Devices Accessories Connection Sizes Power Supply Consumptio...

Page 6: ...opper Tubing Flame Rod Thermal Fuse Lightning Protection Device ZNR Overheat Prevention Device Freezing Prevention Device Fan Rotation Detector Anchoring Screws Item Model Name Type Ignition Operating Pressure Minimum Flow Rate Dimensions Height x Width x Depth Weight Water Holding Capacity Accessories Installation Air Supply Exhaust Connection Sizes Power Supply Materials Water Inlet Hot Water Ou...

Page 7: ...ions Maximum Performance Minimum Performance 45 F 25 C Rise NRC98 DV NG 180 000 btuh LP 180 000 btuh NRC98 OD NG 16 000 btuh LP 16 000 btuh 7 5 GPM 28 2 L min 0 5 9 8 GPM 2 37 0 L min 100 140 F In 5 F intervals 9 Options F Mode C Mode 37 48 C In 1 C intervals 50 55 60 C In 5 C intervals 15 Options 120 F 50 C 130 F 55 C 140 F 60 C Original is 120 F 50 C Item Gas Consumption Maximum Hot Water Capaci...

Page 8: ... temperature F 80 0 1 2 3 4 5 6 7 8 90 100 110 120 130 140 150 160 170 180 190 Flow Rate GPM Summer Inlet water temp 82 F Set temperature F 80 0 1 2 3 4 5 6 7 8 9 10 11 12 90 100 110 120 130 140 150 160 170 180 190 Flow Rate GPM Winter Inlet water temp 46 F 9 10 11 12 Set temperature F 80 0 1 2 3 4 5 6 7 8 90 100 110 120 130 140 150 160 170 180 190 Flow Rate GPM Spring Fall Inlet water temp 64 F 9...

Page 9: ...System Controller 170 185 F Bypass Flow Control Valve Open Set temperature 120F or less Storage Tank Setting W System Controller 160 F or less NRC1111 NCC1991 1 0 2 0 3 0 4 0 5 0 6 0 7 0 8 0 9 0 10 0 11 0 12 0 Flow Rate GPM 0 10 20 30 40 50 60 70 80 Pressure Loss Ft of head Bypass flow control valve Open Set temperature 120ﾟF or less storage Tank Setting W System Controller 160ﾟF or less Bypass fl...

Page 10: ...10 15 20 25 30 35 Pressure Loss psi 0 5 10 15 20 25 30 35 0 0 2 0 4 0 6 0 8 0 10 0 Pressure Loss psi Flow Rate GPM NR83 DVC 10 ...

Page 11: ... 6 0 24 x 0 4 6mm x 10mm OBLONG HOLE 0 4 10mm VIEW FROM TOP NRC98 DV NRC83 DV HEIGHT OF EACH FITTING FROM BOTTOM OF CASE CONDENSATE DRAIN HOT WATER OUTLET COLD WATER INLET 1 9 49mm 1 8 45mm 0 8 20mm 6 6 168mm 5 9 149mm 4 1 104mm 5 6 142mm 6 1 155mm 2 2 55mm 2 0 50mm 14 0 355mm 12 6 320mm 7 0 179mm 3 6 93mm VIEW FROM TOP WIRING THOROUGHWAY CONDENSATE DRAIN 1 2 HOT WATER OUTLET 3 4 WIRING THOROUGHWA...

Page 12: ...7 146mm 3 9 98mm HOT WATER OUTLET 3 4 CONDENSATE DRAIN 1 2 WIRING THOROUGHWAY COLD WATER INLET 3 4 GAS INLET 3 4 WATER DRAIN VALVE CONDENSATE DRAIN WIRING THOROUGHWAYS COLD WATER INLET WATER DRAIN VALVE HOT WATER OUTLET WIRING THOROUGHWA AC120V WATER DRAIN VALVE GAS INLET WATER FILTER WATER DRAIN VALVE 6 7 170mm 5 5 140mm 3 9 100mm 2 8 70mm 1 4 36mm AIR INLET FLUE COLLAR AIR INLET LED VIEW FROM TO...

Page 13: ...171mm 7 0 177mm 8 4 214mm 3 9 99mm 2 8 70mm 14 2 362mm 5 7 146mm 3 9 98mm AC120V WIRING THOROUGHWA AC120V WATER DRAIN VALVE GAS INLET WATER FILTER WATER DRAIN VALVE AIRINLET AIRINLET WATER DRAIN VALVE CONDENSATE DRAIN WIRING THOROUGHWAYS COLD WATER INLET WATER DRAIN VALVE HOT WATER OUTLET inch mm 4 Ø0 5 Ø13mm 6 0 24 x 0 4 6 x 10mm OBLONG HOLE 4 Ø0 5 Ø13mm 6 0 24 x 0 4 6 x 10mm OBLONG HOLE 1 4 36mm...

Page 14: ...M OF CASE NR981 DVC NC1991 DVC HOT WATER OUTLET 1 8 45mm COLD WATER INLET 2 2 55mm GAS INLET 2 2 56mm 600 23 6 88 3 4 42 1 7 252 9 9 61 2 4 334 13 1 350 13 8 AIR INLET FLUE COLLAR 336 13 2 10 0 4 10 0 4 240 9 4 10 0 4 28 1 1 567 22 3 41 1 6 AIR INLET AC120V COLD WATER INLET WATER DRAIN VALVE 2 7 7 5 2 87 7 WATER FILTER 6 1 7 WATER DRAIN VALVE 5 1 7 52 8 5 1 7 52 8 4 13 0 5 2 2 1 2 50 2 0 85 3 3 12...

Page 15: ...m OBLONG HOLE 24 6 626mm 22 3 567mm 1 0 26mm 4 4 113mm 4 0 102mm HOT WATER OUTLET COLD WATER INLET GAS INLET 1 8 45mm 1 9 49mm 2 2 56mm NR83 DVC 15 100 φ4 600 23 6 334 13 1 350 13 8 AIR INLET FLUE COLLAR 336 13 2 10 0 4 10 0 4 567 22 3 70 2 8 240 9 4 28 1 1 95 3 7 41 1 6 AC120V COLD WATER INLET WATER DRAIN VALVE HOT WATER OUTLET WATER FILTER GAS INLET WIRING THROUGHWAY WIRING THROUGHWAY 4 13 0 5 2...

Page 16: ...at Exchanger Thermistor Manifold Water Flow Sensor Freeze Prevention Heater 2 Freeze Prevention Heater 3 Freeze Prevention Heater Q High Limit Switch Burner Thermal fuse Igniter Primary Heat Exchanger Secondary Heat Exchanger AIR INLET FLUE COLLAR Hot Water Outlet Gas Inlet Water Inlet Water Drain Valve Water Drain Valve NRC98 DV NRC83 DV 16 ...

Page 17: ...xchanger Thermistor Manifold Water Flow Sensor Freeze Prevention Heater 2 Freeze Prevention Heater Q High Limit Switch Burner Thermal fuse Igniter Primary Heat Exchanger Secondary Heat Exchanger FLUE COLLAR Hot Water Outlet Gas Inlet Water Inlet Water Drain Valve Water Drain Valve Junction Box Power supply cord NRC98 OD NRC83 OD 17 ...

Page 18: ...NRC1111 DV NCC1991 DV 18 ...

Page 19: ...NRC1111 OD NCC1991 OD 19 ...

Page 20: ...e Prevention Heater Manifold Circuit Board Lightning Arrester High Limit Switch Freeze Prevention Heater Flue Collar Air Inlet Water Flow Sensor Burner Primary Heat Exchanger Ignition Plug Freeze Prevention Heater Water Inlet Thermistor Air Inlet Thermistor Water Drain Valve Water Filter Wiring Thoroughways Water Outlet Thermistor Freeze Prevention Heater Freeze Prevention Heater NR981 DVC NC1991 ...

Page 21: ...ntroller Terminal Block Water Drain Valve Water Flow Sensor Water Outlet Thermistor Bypass Flow Control Valve Fan Motor Water Inlet Thermistor Heat Exchanger Thermistor Flame Rod Main Flow Control Valve Manifold Thermal Fuse Water Drain Valve Exhaust Flue Burner Freeze Prevention Heater Lightning Arrester Wiring Thoroughways Freeze Prevention Heater Freeze Prevention Heater Water Filter NR981 OD N...

Page 22: ...ontroller Terminal Block Hot Water Outlet Freeze Prevention Heater Main Flow Control Valve Bypass Flow Control Valve Fan Motor Flame Rod Ignition Plug Heat Exchanger Thermistor Exhaust Flue Air Inlet Thermistor Water Drain Valve Burner Freeze Prevention Heater Water Inlet Thermistor Freeze Prevention Heater Wiring Thoroughways Freeze Prevention Heater Wiring Thoroughways Water Outlet Thermistor Wa...

Page 23: ...Water Drain Valve Hot Water Outlet Water Inlet Water Flow Sensor Main Flow Control Valve Manifold Gas Inlet Fan Motor Lightning arrester Igniter High Limit Switch Freeze Prevention Heater 3 Freeze Prevention Heater 3 Power supply cord Freeze Prevention Heater 2 Flue Collar Air Inlet NR83 DVC 23 ...

Page 24: ...atic water heater power ON or OFF setting as determined by the user selected schedule For turning the water heater on off Next page Locks remote controller operation Check the status of the system or the number of installed unit s Returns to the previous screen while making system settings or checking status Confirms changes made by the user For setting the hot water temperature the flow meter ala...

Page 25: ...yed when the button is ON Normally the hot water temperature and the clock etc are displayed Flame Symbol During normal operation the set temperature is displayed Display for Recirculation Operation Display for High Temperature Temperature Setting Clock Display Error Code For systems that use recirculation operation the symbol is displayed when the power ON OFF button is set to ON It is displayed ...

Page 26: ...damage of fuse Check outlet water temperature Is the water hard Is the water pressure less than 25 PSI Is there a clogged pre filter or strainer Check high limit switch connection Is the water hard Check pressure switch Check fan motor Check flue for blockage or obstruction For N 1321M ASME Check for neutralizer and or drain pipe blockage Check for proper connection of water level electrode Check ...

Page 27: ...hold both the up and down setting buttons simultaneously for more than two seconds This can be done regardless of whether the power has been turned on or the unit is operating Indications 1 The maintenance monitor data no will appear on the display for two seconds and then the data will appear 2 In order to switch to other maintenance monitor data press either the up or down button once The data n...

Page 28: ... turn the water heater on by pressing the Power On Off Button on the remote controller Displaying Maintenance Monitors Display Procedure 1 Press and hold both the up and down setting buttons simultaneously for more than 5 seconds This can be done regardless of whether the power has been turned on or the unit is operating Indications 1 Unit No Item Data No Data will appear on the display 2 Differen...

Page 29: ...ode History 7 Error Code History 6 Error Code History 5 Error Code History 4 Error Code History 3 98 97 96 95 94 93 92 91 Error Code History 1 Error Code History 2 If the same error code is repeated it will appear in the history list twice If it isrepeated more than twice it will only appear twice Total Flow Rate 1 When remote isin F Gallonsmode 2 When remote isin C Litersmode To view the maintane...

Page 30: ...inlet Remove the hex head philips screw from the tap and connect a manometer using a silicon tube In order to check the gas manifold pressure a pair of taps are provided on the gas valve inside the unit The pressure can be checked either by removing the hex head philips screw and connecting a manometer with a silicon tube or by removing the 1 8 NPT screw with an allen wrench and connecting the app...

Page 31: ...6 55 112 213 440 675 1260 Maximum Capacity of Flex TracPipe in Cubic Feet 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 2 206 383 614 1261 2934 147 269 418 888 2078 121 218 334 723 1698 105 188 284 625 1472 94 168 251 559 1317 86 153 227 509 1203 80 141 209 471 1114 75 132 194 440 1042 71 125 181 415 983 67 118 171 393 933 55 94 137 3...

Page 32: ... PRIORITY LED goes out on PRIORITY LED blinks 6 If 2D also needs to be changed repeat steps 4 and 5 7 To confirm the settings press the Setting Buttons and simultaneously for more than 5 seconds After the settings are confirmed the maintenance writer mode will end and the remote controller display will disappear ON OFF No warning 2D 2C 6 months 12 months 24 months Initial factory setting Reset the d...

Page 33: ...rns or scalding turn off the power button and wait until the equipment cools before performing maintenance CAUTION Check For laundry newspaper timber oil spray cans and other combustible materials near the heater or the exhaust vent terminal For abnormal sounds during operation For abnormalities in external appearance discoloration or flaws For water leaks from the equipment and piping For dust and...

Page 34: ...water fixtures 3 With a bucket ready remove the inlet and outlet drain plugs about 0 4 gallon 1 4L will drain out 4 Take the water drain valve with water filter out of the inlet See illustration to right 5 Clean the water drain valve with water filter with a brush under running water 6 Replace the water drain valve with water filter and close the drain plugs Take care not to lose the packing 7 Close a...

Page 35: ... water to 1 part Lime Away or CLR into a bucket 8 Place both the pump inlet hose and the drain outlet hose into the pail 9 Open both drain valve lever handles on the isolation valves 10 Turn the pump on The unit will attempt to ignite make sure that the gas has been turned off and a number 11 should flash on the remote controller after about 1 minute Do not reset the unit Allow the solution to circ...

Page 36: ... gas water heater can be programmed so that it will default to one of three temperatures if the remote controller is removed 140 130 120 F 60 55 50 C To change the default tempera ture adjust the dip switches as described below The default temperature is 120 F 50 C 1 Disconnect electrical power to the water heater 2 Remove the front cover of the water heater 4 screws 3 Disconnect the remote contro...

Page 37: ... general it is not advisable to run water through the unit when it is OFF p 6 but in this case freeze prevention is more important Remember to set mixing valves and fixtures to their original levels before using the unit again to prevent scalding If there is still a risk that the unit will freeze drain the unit as shown on the next page Freezing is prevented within the device automatically by the f...

Page 38: ...the power supply 4 Close the water supply valve 5 Fully open all hot water fixtures 6 Turn the drain plug to the left to open and then remove 7 Check that the water is completely drained close all the drain plugs and the hot water fixtures after 10 minutes or more pass from operation of 6 Drain water into a bucket to prevent water damage Fixture Do not touch with wet hands Drain Plugs Each drain plu...

Page 39: ...ltiple units are being used drain two minutes for each unit An 11 Error Code may appear on the remote controller This is not a malfunction of the unit Do not turn Power ON OFF Button OFF Manual Draining Close the water supply valve and disconnect the electrical power supplied to the unit 3 4 5When the water is completely drained replace all drain plugs and close the hot water fixtures faucets 5 Ope...

Page 40: ...t will not be exposed to steam ammonia sulfur chlorine ethylene compounds or acids 2 If this unit will be installed in a restaurant locate it so that it will not be effected by steam 3 Avoid any installation that will expose the unit to steam or moisture For Multiple Floor Water Supply 1 If the unit will be installed on the lower floor of a multiple story building in order to get the maximum flow ra...

Page 41: ...g the vent pipe Filling the condensate trap before vent pipe installation DANGER Prior to initial start up make sure that you fill the condensate trap with water This is to prevent dangerous exhaust gases from entering the building Failure to fill the condensate trap could result in severe personal injury or death Please follow one of the procedures described below to ensure that the condensate trap...

Page 42: ...here 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 as possible The end of the drain pipe must not be ...

Page 43: ...ndensing Tankless Gas Water Heater NORITZ 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 drain pipe use the appropriate size pipe allow the proper ...

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