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Navien NR-180, Installation Manual

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Navien NR-180 Installation Manual Download Page 61

Navien Gas Water Heater Installation 

 

61 

█ 

Ladder Diagram: 

 

 

 

NR-A 

 

 

 

 

 

 

 

 

 

 

 

 

 
 
 
 
 
 
 
 
 
 
 
 
 
 

 
 

W

IRING

 DIAGRAM

 

HOT

NEUTRAL

Power 

Switch

120VAC

MGV

Relay 1

Relay 2

Relay 3

Relay 4

Relay 6

SGV 1

SGV 2

Igniter

Relay 7

Pump

Speed Control

Transformer

Primary

Secondary

MCU 1

MCU 2

Flame rod

AC150V

AC9V

AC26V

Relay Power Supply

WD-RSS

DC24V

Relay 2

Relay 3

Relay 4

Relay 6

Relay 7

Driving Circuit

Flow Sensor

APS

GPS

DC5V

Fan

Hall Sensor

FAN

Water Adjustment 

Valve

Flow Control

AC19V

DC15V

Water Leakage 

Detection

H/E 

Thermostat

C/W 

Thermostat

H/W 

Thermostat

Modulation

GV

High Limit S/W

Exhaust Limit S/W

Remote Controller

Interface

Remote

Controller

MCU2 Pulse

Signal

5

A

5

A

Ready Link

Interface

Ready Link

Relay 1

Summary of Contents for NR-180

Page 1: ...electrical switch do not use any phone in your building Immediately call your gas supplier from a neighbor s phone Follow the gas supplier s instructions If you cannot reach your gas supplier call the...

Page 2: ...Relief Valve 19 Condensate Disposal Disposal of Condensate 20 Condensate Drain Cleaning 21 Gas Piping Gas Piping Guidelines 22 Gas Supply Line Pressures 22 Gas Piping Sizing Chart 23 Gas Pressure Test...

Page 3: ...Qty Navien Gas Water Heater 1 Remote Controller 1 Owner s Operation and Installation Manual 1 Wall Mounting Bracket 1 Condensate Drain Hose 1 Tapping Screws Anchors 4 Vent terminators 2 Wall Flanges...

Page 4: ...ies A 2 Optional Accessories Item Description Navien Plumb Easy Valve Set Navien Pressure Relief Valve Navien condesate Neutralizer Navien Ready Link Communication Cable Contact your Navien Water Heat...

Page 5: ...Pressure min max 15 150 PSI Natural Gas Supply Pressure from source Min Max 6 WC 10 5 WC 5 WC 10 5 WC Propane Gas Supply Pressure from source Min Max 9 WC 13 5 WC 8 WC 13 5 WC Natural Gas Manifold Pr...

Page 6: ...ation Pump NAPU9GLPCT01 21 Ignition Transformer BH1201041D 7 DHW Supply Adapter BH2507348B 22 APS Venturi BH2501413A 8 3 Way Valve BH2507467C 23 Manifold PABCR180AMF_001 9 DHW Inlet Adapter BH2507469A...

Page 7: ...culation Pump NAPU9GLPCT01 22 APS Venturi BH2501413A 7 DHW Supply Adapter BH2507348B 23 Manifold PABCR180AMF_001 8 3 Way Valve BH2507467C 24 Burner PABNCN30KDBN_003 9 DHW Inlet Adapter BH2507469A 25 A...

Page 8: ...A Description Diameter A Exhaust 3 B Air Intake 3 C DHW Supply D Recirculation Inlet E Cold Water Inlet F Gas Inlet NR A NP A Type Dimensions Model 180 14 29 2 13 7 17 3 210 15 2 29 2 14 9 17 3 240 1...

Page 9: ...H1501047B 22 APS Venturi BH2501413A 7 Heater Clip BH2507447A 23 Manifold PABCR180AMF_001 8 DHW Supply Adapter BH2507348B 24 Burner PABNCN30KDBN_003 9 DHW Inlet Adapter BH2507469A 25 APS NASS9EX00009 1...

Page 10: ...01047B 22 APS Venturi BH2501413A 7 Heater Clip BH2507447A 23 Manifold PABCR180AMF_001 8 DHW Supply Adapter BH2507348B 24 Burner PABNCN30KDBN_003 9 DHW Inlet Adapter BH2507469A 25 APS NASS9EX00009 10 S...

Page 11: ...ions NR NP NR NP Description Diameter A Exhaust 3 B Air Intake 3 C DHW Supply D Cold Water Inlet E Gas Inlet NR NP Type Dimensions Model 180 14 29 2 13 7 17 3 210 15 2 29 2 14 9 17 3 240 15 2 29 2 14...

Page 12: ...n will not be responsible for any damage resulting from leaking if adequate drainage is not provided 6 DO NOT use this water heater for any purpose other than water heating and space heating 7 If the...

Page 13: ...n the rating plate of the Navien Water Heater Using different gas type will cause abnormal combustion and Water Heater malfunction Be sure to use 120V AC 60Hz minimum 2A current Using abnormally high...

Page 14: ...ignal tique Automatic Instantaneous Water Heater Chauffe eau automatique instantan Navien America Inc 1371 Santa Fe Drive Tustin CA 92780 Tel 714 258 9005 Model No N de mod le Type of Gas Type de gaz...

Page 15: ...ect a location that minimizes the water piping distance between the major fixtures If the distances are long or an appliance needs instant hot water Navien recommends using its A models and running a...

Page 16: ...Ensure hanging laundry or other such items will not impede the air movement into or out of the Water Heater or its venting 11 For commercial applications avoid greasy fumes or a large amount of steam...

Page 17: ...onger the piping the longer it takes to get hot water to the fixtures Make the hot water piping system as short as possible To conserve water and energy insulate all water piping especially the hot an...

Page 18: ...e The flow rate of hot water may vary when more than two faucets appliances fixtures etc are being used simultaneously If a Water Heater is installed in a closed water supply system such as one having...

Page 19: ...tach the discharge tube to the pressure relief valve and run the end of the tube to within 6 from the floor This discharge tube must allow free and complete drainage without any restrictions No reduci...

Page 20: ...p comes factory installed inside each Water Heater All condensate must be drained in accordance with all local regulations Navien recommends draining the condensate to a laundry tub as the alkalie in...

Page 21: ...When this occurs the siphon must be cleaned To clean you will need a bucket to collect any residual water See figures below Remove retaining clip Prepare bucket twist and remove cap drain clean out si...

Page 22: ...2 Gas pressures over and above the specified ranges will result in adverse performance and dangerous operating conditions any damage resulting from extreme gas supply pressures will not be covered by...

Page 23: ...775 663 588 532 490 456 428 404 358 511 440 1 1 2 3 307 2 299 1 161 993 880 798 734 683 641 605 536 787 675 2 6 221 4 331 2 235 1 913 1 696 1 536 1 413 1 315 1 234 1 165 1 033 1 496 1 260 For referenc...

Page 24: ...ere are no gas leaks 6 Open multiple fixtures that have high flow rates bathtub showers kitchen sink to ramp the Water Heater up to its maximum burn 7 When the Navien Water Heater is at maximum burn c...

Page 25: ...y or death This Water Heater must be vented in accordance with the Venting of Equipment section of the latest edition of the ANSI Z223 1 NFPA 54 Natural Fuel Gas Code and or the Venting systems and ai...

Page 26: ...PVC galvanized steel corrugated aluminum or any other such materials If you are using a corrugated material ensure there is no inadvertent crimping of or damage to the intake air pipe Navien and Non D...

Page 27: ...directly with the outdoors combustion air must be supplied to the space The opening sizes below are Navien s minimum requirements Follow the latest version of the National Fuel Gas Code ANSI Z223 1 NF...

Page 28: ...nments Venting requirements in USA and Canada are different Please consult the chart below and the most recent edition of the National Fuel Gas Code ANSI Z223 1 NFPA 54 or CAN CGA B 149 1 as well as l...

Page 29: ...hat may be opened 1 3 C Permanently closed window D Vertical clearance to ventilated soffit located above the terminal within a horizontal distance of 2 feet from the center of the terminal E Unventil...

Page 30: ...maximum lengths listed above are for the exhaust pipe section only The intake air pipe length can be of equal length The Maximum Length are not including elbows Allowable 2 Venting The 2 diameter Sch...

Page 31: ...your designing your vent system Possible configurations are not limited to these diagrams Option 2 Non concentric venting through a side wall Air is drawn from different location at a minimum of 12 f...

Page 32: ...Gas Water Heater Installation 32 Venting VENTING Option 3 3 2 pipe Vertical Vent Termination 12 minimum from any obstruction above below left or right 12 Min Intake Exhaust...

Page 33: ...NSION A B C D 38 7 8 3 4 1 2 21 1 8 COMBUSTION AIR VENT 1 MINIMUM VENT COMBUSTION AIR MAINTAIN 12 MIN CLEARANCE ABOVE HIGHEST ANTICIPATED NOW LEVEL OR GRADE WHICHEVER IS GREATER COMBUSTION AIR VENT CO...

Page 34: ...That will prevent exhaust flue gas from entering the intake air pipe Make sure there are plenty of air around the intake air pipe and protect any objects from entering the intake air pipe Clearance Ve...

Page 35: ...as from entering the Water Heater intake air pipe terminal It may cause damage to the Water Heater and warranty will be avoided Install the Water Heater outdoor under the overhang with 3 feet or more...

Page 36: ...surge protector is recommended to protect from power surges Do not plug electrical power to the unit until all plumbing and gas piping is complete and the Water Heater has been filled with water The e...

Page 37: ...is remote controller The maximum length of wire between the Water Heater and the remote controller installation location is limited to a maximum of 300 feet There is no polarity The remote controller...

Page 38: ...ill automatically revert to the temperature indicated by the dipswitches The PCB board does not store the remote controller s temperature in memory As such the remote controller must remain connected...

Page 39: ...er s purpose 1 Case I NR A NP A Recirculation In the status that recirculation piping connected to cascade piping are open activate internal pump If flow rate per a unit does not reach to 2 GPM please...

Page 40: ...tion function additional pump could be installed out of the unit In this case be sure to set the head pressure and flowrate of the pump properly to enable each unit s flowrate to be more than 2 GPM Ho...

Page 41: ...ication Cable B B Cold Water Supply Gas Supply Hot Cold Rec Gas Remote Controller NR 10DU Hot Cold Rec Gas Master Unit Slave n 1 Slave n 14 Slave n 15 C C A Recirculation SYMBOL Ball Valve Check Valve...

Page 42: ...e first appliance Connector rise to the rating plate BTUH rating or the next higher rating for that appliance Read the connector vent size for that appliance at the top of the column 4 At the least to...

Page 43: ...0 2 50 90 100 Till 330 000 1 1 50 90 100 Till 360 000 2 50 90 100 Till 379 000 1 1 50 90 100 Till 398 000 2 50 90 100 Till 540 000 3 60 90 100 Till 559 000 2 1 60 90 100 Till 578 000 1 2 60 90 100 Til...

Page 44: ...3 83 6 83 80A 3 6 43 15 4 49 50A 2 21 151 02 4 06 100A 4 7 50 34 5 24 50A 2 22 158 21 4 25 100A 4 8 57 5 6 00 50A 2 23 165 41 4 45 100A 4 9 64 72 4 39 65A 21 2 24 172 60 4 65 100A 4 10 71 92 4 75 65A...

Page 45: ...and change the DIP switch 2 on the PCB as below During step 1 the power supply should be OFF Cable connection and DIP switch set up cascade communication cable PCB connecting adapter PCB CN9 port CN2...

Page 46: ...ast unit of Cascade connection The recommended location for the master unit is in the center Step 4 Communication set up After the cable connections and DIP switch set up the communication set up shou...

Page 47: ...munication set up Step 4 master unit change will be done Slave unit Addition Removal It is always possible to add or remove a slave unit After all units are powered OFF the communication cable is adde...

Page 48: ...After the slave set up DIP SW1 and DIP SW2 should be set to the original position and push the SW3 and SW4 of the master unit simultaneously for more than 3 seconds All the FND will be changed to the...

Page 49: ...ion Mode Select Operation Mode DIP Switch 1 2 Normal Operation OFF OFF Maximum Operation ON OFF Minimum Operation OFF ON 3 Stage Minimum ON ON Description Function ON OFF 1 Operation Select 1 1 Operat...

Page 50: ...8 Switches Operating Mode Selection NO Description Function ON OFF 1 Ready Link Multi System Select Ready Link Multi System Master Single Unit Operation or Multi System Slave 2 Location select Korea...

Page 51: ...40A Normal OFF OFF External Recirculation OFF ON Internal Recirculation ON OFF Without Pump NR 180 NR 210 NR 240 NP 180 NP 210 NP 240 ON ON 7 8 Temperature Selection Temperatures DIP Switch Regular Mo...

Page 52: ...elements and flammable vapors Is there a drain in close proximity of the Water Heater Are all combustible materials including clothing cleaning materials rags etc clear of the Water Heater and vent p...

Page 53: ...ef valve to within 6 8 of the floor Gas Supply Does the gas supply match the water heater s gas type indicated on the rating plate Is the gas line a minimum of ID inner diameter Is the gas supply line...

Page 54: ...t terminal been properly supported Have all air intake and exhaust joints from flue collar to termination been properly sealed Have the vent end caps been installed on the exhaust and the intake pipes...

Page 55: ...4 off 5 off or external recirculation mode 4 off 5 on or internal recirculation mode 4 on 5 off Is switch 6 properly set for regular or premium type Are switches 7 and 8 set to the customer s desired...

Page 56: ...5 6 ON 7 8 Dip Switch 1 1 2 3 4 5 6 ON 1 2 3 4 5 6 ON 7 8 1 2 3 4 5 6 ON 1 2 3 4 5 6 ON 7 8 1 2 3 4 5 6 ON 1 2 3 4 5 6 ON 7 8 NR 180A NG 1 2 3 4 5 6 ON 1 2 3 4 5 6 ON 7 8 NR 180A LP 1 2 3 4 5 6 ON 1 2...

Page 57: ...BK CN12 CN9 Remote Controller Cascade ON ON 1 2 3 4 5 6 1 2 3 4 5 6 7 8 Min Max Modulating Gas Valve Adjusting Dip S W 1 Dip S W 2 Dip S W 6 FND 1 BR SV1 Y Y Solenoid Valve 2 SV2 R R SW4 Service use...

Page 58: ...troller Cascade ON ON 1 2 3 4 5 6 1 2 3 4 5 6 7 8 Min Max Modulating Gas Valve Adjusting Dip S W 1 Dip S W 2 Dip S W 6 FND 1 BR SV1 Y Y Solenoid Valve 2 SV2 R R SW4 Service use SW3 Spark Electrode Fla...

Page 59: ...odulating Gas Valve Adjusting Dip S W 1 Dip S W 2 Dip S W 6 FND 1 BR SV1 Y Y Solenoid Valve 2 SV2 R R SW4 Service use SW3 Spark Electrode Flame rod B Power S W W W W BK W Anti Frost Heater 2nd H E R 1...

Page 60: ...e Adjusting Dip S W 1 Dip S W 2 Dip S W 6 FND 1 BR SV1 Y Y Solenoid Valve 2 SV2 R R M 2 Way Valve R B BK SW4 Service use SW3 Spark Electrode Flame rod B Power S W W W W BK W Anti Frost Heater 2nd H E...

Page 61: ...2 Flame rod AC150V AC9V AC26V Relay Power Supply WD RSS DC24V Relay 2 Relay 3 Relay 4 Relay 6 Relay 7 Driving Circuit Flow Sensor APS GPS DC5V Fan Hall Sensor FAN Water Adjustment Valve Flow Control...

Page 62: ...U 2 Flame rod AC150V AC9V AC26V Relay Power Supply WD RSS DC24V Relay 2 Relay 3 Relay 4 Relay 6 Relay 9 Relay 7 Driving Circuit Flow Sensor APS GPS DC5V Fan Hall Sensor FAN Water Adjustment Valve Flow...

Page 63: ...V AC9V AC26V Relay Power Supply WD RSS DC24V Relay 2 Relay 3 Relay 4 Relay 6 Driving Circuit Flow Sensor APS GPS DC5V Fan Hall Sensor FAN Water Adjustment Valve Flow Control AC19V DC15V Water Leakage...

Page 64: ...50V AC9V AC26V Relay Power Supply WD RSS DC24V Relay 2 Relay 3 Relay 4 Relay 6 Relay 9 Driving Circuit Flow Sensor APS GPS DC5V Fan Hall Sensor FAN Water Adjustment Valve Flow Control AC19V DC15V Wate...

Page 65: ...er Installation 65 Components Diagram Parts List 1 1 Case Disassemble NR A NR NP A NP COMPONENTS DIAGRAM PARTS LIST LADDER DIAGRAM 1 3 7 6 1 12 94 94 80 80 80 5 8 6 92 80 10 80 9 80 80 2 93 7 1 7 2 2...

Page 66: ...duct packing No 6 Ass y 10 Intake air filter BH2505416A 92 Intake air filter support BH2505417A 7 Exhaust pipe BH2505401B 7 1 Exhaust pipe O ring No 7 Ass y 7 2 Exhaust pipe packing No 7 Ass y 8 PCB...

Page 67: ...r Disassemble NR NR A NP NP A COMPONENTS DIAGRAM PARTS LIST 11 13 14 15 17 21 22 23 19 24 25 20 31 30 33 34 68 69 70 71 69 70 75 75 77 14 30 23 70 80 80 95 80 96 97 106 101 103 98 99 105 104 26 A Deta...

Page 68: ...d packing A BH2505054A 18 3 Flame rod packing B BH2405051A 18 4 Flame rod bracket BH2505681A 19 Burner PABNCN30KDBN_003 180 NG PABNCW48KDBN_002 210 240 NG PABCR180ABN_002 180 Propane PABCR210 240ABN_0...

Page 69: ...036A 180 BH2202041A 210 240 75 O ring BH2421003A 77 O ring BH2421008A 80 Screw D4 x 8L BH1705007A 95 Screw D4 x 10L BH1705001A 96 Bolt M4 x 12L BH1603006A 97 Screw D4 x 4L BH1710001A 98 Screw D4 x 12L...

Page 70: ...39 43 80 58 73 60 80 89 83 91 91 64 63 74 52 74 4 91 74 48 47 47 46 46 46 46 46 46 46 46 78 32 32 78 74 74 81 74 78 32 74 78 49 74 74 74 74 78 78 67 82 52 50 109 A 16 65 62 61 46 46 74 74 74 A 62 59 1...

Page 71: ...2 41 40 39 43 80 58 73 60 80 89 83 91 91 64 63 74 52 74 4 91 74 48 47 47 46 46 46 46 46 46 46 46 78 32 32 78 74 74 81 74 78 32 74 78 49 74 74 74 74 78 78 67 82 52 50 109 A 16 65 62 61 46 46 74 74 74 A...

Page 72: ...DIAGRAM PARTS LIST COMPONENTS DIAGRAM PARTS LIST 38 36 35 37 56 53 54 104 86 16 62 61 46 46 74 74 65 46 74 4 91 87 46 78 109 27 78 27 45 46 46 46 46 46 46 46 74 74 74 87 91 74 87 66 29 74 47 32 78 32...

Page 73: ...M PARTS LIST COMPONENTS DIAGRAM PARTS LIST 38 36 35 37 53 54 104 86 16 62 61 46 46 74 74 65 46 74 4 91 87 46 78 109 27 78 27 45 46 46 46 46 46 46 46 74 74 74 87 74 29 74 47 32 78 32 55 88 81 40 39 41...

Page 74: ...E bracket R BH2501704A 40 H E bracket L BH2501703A 41 Exhaust duct packing BH2406050A 42 Exhaust duct BH2544007D 43 Buffer tank PASNCWBFTANK_001 A Series 45 Secondary H E outlet adapter BH2507532B 46...

Page 75: ...n pump bracket BH2501445A A Series 74 O ring BH2423008A 78 O ring BH2423055A 79 Circulation pump fastener BH2507475A A Series 80 Screw D4 x 8L BH1705007A 81 DHW Outlet pipe BH2507513B NR 180A BH250751...

Page 76: ...6A 107 Bolt M3 x 5L BH1603002A 108 Bolt M4 x 14L STS BH1612008A 109 Water pipe adapter A Screw BH2507507C 110 Water pipe adapter A Clip BH2507508B 111 T type adapter clip BH2507474B NP 112 Freeze prot...

Page 77: ...hot water is not available when a fixture is opened Make sure the unit gets 120V 60Hz power supply Is the gas supply valve fully open Is the water supply valve fully open Is the filter on cold water...

Page 78: ...Gas Water Heater Installation 78 Printed Date xx Month xx Day xxxx year...

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