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SAQ8975

r

Rev. 3/05

Model N-132M

WARNING: If the information in this manual is not followed exactly, a fire or
explosion may result causing property damage, personal injury or death.

- Do not store or use gasoline or other flammable vapors and liquids in the

vicinity of this or any other appliance.

- WHAT TO DO IF YOU SMELL GAS
• Do not try to light any appliance.
• Do not touch any 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 fire department.

- Installation and service must be performed by a qualified installer, service

agency or the gas supplier.

Owner’s Guide  and

                      Installation Manual

*SAQ8975   T*

       Thank you for purchasing this Noritz Gas Water Heater. Before using, please:

Read this manual completely for correct installation and operation instructions.
Completely fill out the warranty registration card (included separately) and
mail the detachable portion to Noritz America Corporation.
Keep this manual (and the remainder of the warranty registration card) where it
can be found whenever necessary.

Low NOx

Approved by SCAQMD

CERTIFIED

R

NORITZ America Corporation

Summary of Contents for N-132M

Page 1: ...supplier s instructions If you cannot reach your gas supplier call the fire department Installation and service must be performed by a qualified installer service agency or the gas supplier Owner s Gu...

Page 2: ...e 29 Hot Water Feed Route 31 Electronic Control Unit 35 Electronic Control Unit Remote Controller and Attached Set 36 Installation Manual 37 1 Included Accessories 38 2 Optional Accessories 38 3 Quick...

Page 3: ...erious injury and even death when ignored Denotes content that may result in fire serious injury and even death when ignored Denotes content that may result in bodily injury and physical damage when i...

Page 4: ...e bath tub Do not turn off the water heater or change the water temperature while someone is using Be sure the gas power supplied matches the gas on the rating plate Warning Important Safety Informati...

Page 5: ...from vent pipe Do not place combustibles such as laundry newspapers oils etc near the heater or the exhaust vent terminal Exhaust vent terminal indoor installation Indicates suggested clearances for m...

Page 6: ...hot water supply shower and bath Do not touch the exhaust vent pipe during or immediately after operation of the water heater Do not use hair spray or spray detergent in the vicinity of the heater If...

Page 7: ...red by the warranty Take necessary measures to prevent freezing of water and leakage of gas when leaving the unit unused for long periods of time p 18 If it is snowing check the air inlet exhaust gas...

Page 8: ...el The above illustration shows an example of installation The exact installation configuration may be slightly different Main Unit Flue Collar Front Cover Air Inlet Water Supply Valve Gas Supply Valv...

Page 9: ...other settings Power On Off Button For turning the heater on and off Flow Meter Alarm Set Button For setting the flow meter alarm p 14 and 15 Setting Buttons Before use remove the protective sheet fr...

Page 10: ...t button p 15 Error Code When this indicator is lit the hot water temperature can be set p 13 Priority Indicator The illustration below shows the remote controller display What is actually displayed d...

Page 11: ...r make the following preparations Follow steps 1 through 4 1 Open the water supply valve Open a hot water fixture to confirm that water is available and then close the fixture again 3 Open the gas sup...

Page 12: ...rature To prevent scalding Check the water temperature by hand before bathing or showering When setting the unit to 125 F or higher the temperature display will flash for 10 seconds as a high temperat...

Page 13: ...re settings below are examples The temperature setting necessary depends on the usage the length of piping and the time of year Initial factory setting is 110 F If fixtures incorporate mixing valves s...

Page 14: ...Button 1 Plug the bath drain Preparation Starting with the power off Always check temperature setting before use Hot Cold On The temperature will be displayed on the remote control thermostat Previou...

Page 15: ...ns 10 60 In 5 gallon intervals 70 100 In 10 gallon intervals or 990 gallons Note The alarm will not sound if it is set for 990 gal Note The alarm will not sound if it is set for 990 gal On Flow meter...

Page 16: ...an be muted if it is desired 1 How to Use Muting the Remote Controller Initial factory setting is with sound Sound Muted No sound after 5 sec 1 With the remote controller off hold the Power On Off But...

Page 17: ...next page Preventing Damage from Freezing 1 Freezing is prevented within the device automatically by the freeze prevention heater If water will not flow because it is frozen 1 Close the gas and water...

Page 18: ...e unit 6 When the water is completely drained replace all drain plugs and close the hot water fixtures If the water heater will not be used for a long period of time Drain the water Drain the water as...

Page 19: ...r is water resistant but not water proof Keep it is dry as possible Caution Regular Maintenance 1 Periodic Inspection Check For laundry newspaper timber oil spray cans and other combustible materials...

Page 20: ...er with a brush under running water 6 Replace the filter and close the drain plugs Take care not to lose the packing 7 Close all hot water fixtures 8 Open the water supply valve and check that water d...

Page 21: ...ower button turned on Are the gas and water supply valves fully open Is the water temperature setting appropriate p 12 and p 13 If the water supply temperature is high it is possible for the temperatu...

Page 22: ...able but it should stabilize after a short time There are some types of hot water taps that discharges large volumes of hot water initially but stabilize after time To keep the temperature stable the...

Page 23: ...le The fan may run to prevent freezing The fan can be heard when it is very cold outside Other The heater stops burning during operation Are the gas and water supply valves fully open Is the water sup...

Page 24: ...t Abnormal combustion low gas supply pressure Error Code Cause Action If the alarm doesn t sound Open a door or window to let air in Close the hot water fixtures Press the power button to turn the uni...

Page 25: ...rrected contact our sales agent If you want to reinstall the appliance at a different location confirm that the gas and power supply indicated on the rating plate are available at the new location If...

Page 26: ...s Steel Copper Sheeting Copper Tubing Flame Rod Thermal Fuse Pressure Relief Valve Back Pressure Switch Lightning Protection Device ZNR Electric Leakage Prevention Device GFCI Overheat Prevention Devi...

Page 27: ...27 External outfitting 052 025 026 025 026 003 006 002 001 005 004 012 007 012 007 056 056 018 019 022 023 024 027 029 050 034 035 050 050 040 050 050 050 053 054 050 036 050 037 055 055...

Page 28: ...5 Front packing H CMN CMNL013 2 026 Front packing V CMN CMNL014 2 027 Current leakage safety device DTJ DTJJ015 1 029 Connection diagram label EJH EJHK002 1 034 Junction box set EHU EHUA008 1 035 Junc...

Page 29: ...100 128 152 119 050 121 050 136 132 053 129 135 050 127 126 050 130 156 114 117 056 151 151 118 110 156 111 149 155 155 151 134 116 154 125 050 120 105 103 104 108 101 050 102 050 106 107 122 112 113...

Page 30: ...21 1 120 Fixing plate for burner case left DMA DMAA022 1 121 Mounting plate for igniter DMA DMAA016 1 122 Manifold seal packing L DMA DMAL018 2 123 Manifold seal packing S DMA DMAL019 2 125 Main dampe...

Page 31: ...ection procedure Left side view Case rear Right side view Front view 404 403 401 401 416 415 B A 416 415 050 423 154 154 417 050 419 418 050 424 050 422 420 421 401 416 151 405 405 415 414 152 406 402...

Page 32: ...488 487 485 471 444 492 446 514 476 445 495 440 505 427 492 471 462 441 151 A B 454 458 056 465 443 447 444 448 513 512 446 492 471 493 491 433 492 492 493 491 445 471 444 435 513 446 512 434 481 480...

Page 33: ...8 Bypass coupling EHA EHAD014 1 433 Water inlet pipe EHA EHAD001 1 434 Water flow sensor set 1 DUV DUVD017 1 435 Magnetic sensor BWC BWCD093 1 440 Freeze preventive heater3 BGD BGDH002 4 441 Heater fa...

Page 34: ...fastner 12 7 6340202 2 492 Quick fastner 16A 6340300 6 493 O ring P12 5C 3359808 2 495 Mixing coupling EHA EHAD011 1 497 Mixing body EHA EHAD010 1 498 O ring P22C 7573308 1 505 Cross straight recessed...

Page 35: ...ronic control unit Special part Special part no Special part instruction manual 888 702 703 709 053 700 706 752 751 753 754 755 801 802 Remote controller kitchen remote controller RC 7646M 2 USA Attac...

Page 36: ...709 Relay case waterproof cover DMA DMAA026 1 751 RC 7646M 2 body USA QME QMEJ005 1 752 Drssed frame body QME QMEA003 1 753 Wall packing QHU QHUA115 1 754 Oar plug 6X25 755 Cross recessed round wood s...

Page 37: ...heater safely read this installation manual carefully and follow the installation instructions Caution WARNING If the information in this manual is not followed exactly a fire or explosion may result...

Page 38: ...1 Remote Controller See p 54 Remote Controller Cord 10 ft 1 2 Optional Accessories The accessories listed below are not included with the units but may be necessary for installation VC 132 Outdoor Ven...

Page 39: ...in pipe length between the two units When connecting 2 devices use only a single remote controller Note Connect the remote controller to only one of the devices System Diagram Insulate the hot water...

Page 40: ...ity If the water supply is hard acidic or otherwise impure treat the water with approved methods in order to ensure full warranty coverage Use Extreme Caution if Using With A Solar Pre Heater Using th...

Page 41: ...ering in the equipment Avoid installation in places where dust or debris will accumulate Dust may block the air supply opening causing the perfor mance of the device fan to drop and incomplete combust...

Page 42: ...t to facilitate inspection If possible leave 24 or more in front of the unit to facilitate maintenance and service if necessary Securing of space for repair inspection 24 or more 8 or more 8 or more M...

Page 43: ...bove paved sidewalk 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 installati...

Page 44: ...or gravity 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 Clearance Requirements from Vent Terminations to Buildi...

Page 45: ...nd hang the unit by the upper wall mounting bracket 3 Determine the positions for the remaining four screws two for the top bracket and two for the bottom and remove the unit The weight of the device...

Page 46: ...llow the vent pipe manufacturer s installation instructions Make the vertical section of the exhaust vent as short as possible Maintain the same vent pipe diameter all the way to the end Pipe diameter...

Page 47: ...and protect against mechanical failure When the vent penetrates a floor or ceiling and is not running in a fire rated shaft a firestop and support is required Terminate the vent system at least 3 abo...

Page 48: ...door air If the unit 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 100 cubic fe...

Page 49: ...cal codes or the National Fuel Gas Code ANSI Z223 1 Natural Gas Meter Noritz N 132M 380 000 Btuh Clothes Dryer 35 000 Btuh Barbecue 50 000 Btuh Gas Range Stove 65 000 Btuh 10 10 10 10 5 5 5 5 Gas Fire...

Page 50: ...n 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 10 20 30 40 50 60 70 80 90 100 150 200 206 383 614 1261 2934 147 269 418 88...

Page 51: ...e rest of the system means such as a mixing valve shall be installed to temper the water to reduce the scald hazard Flush water through the pipe to clean out metal powder sand and dirt before connecti...

Page 52: ...s a mixing valve shall be provided to temper the water for the other uses to help prevent scalding For Space Heating Purposes Check Valve Aquastat Use Aquastat if Unit Isn t Controlling Pump Aquastat...

Page 53: ...r servicing Field wiring to be performed at time of appliance installation Caution Do not let the power cord contact the gas piping Tie the redundant power cord outside the water heater Putting the re...

Page 54: ...ing the Flow Meter Alarm Set button for 0 5 seconds will switch the indicated item number from OFF to ON or ON to OFF If the Priority lamp is flashing when an item number is displayed this indicates a...

Page 55: ...purchased 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 a...

Page 56: ...tly from a wall circuit to the pump 5 Replace the front cover Pump Control Wire Tag Supplies Power for Circulating Pump Use a Relay for Larger Pumps Connecting the pump control wire Pump Wiring This f...

Page 57: ...lly for 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 technici...

Page 58: ...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...

Page 59: ...BR O GY W Y BR O GY BK BK O GY BK BL Y W R BL BR BR BL R W Y BL BK GY O O GY BK BK Y BR BL W CN10 G WW W BK W CN1 CN89 BL BL O W R BK Y BL CN102 CN78 W W W BK CN63 R R W O BK V G Y W BK BL W O BK V G...

Page 60: ...onnect Cord through the wiring throughway and into the unit 4 Plug the connector on the Quick Connect Cord to the receptacle inside the unit 5 Attach the ground wire of the Quick Connect Cord to the t...

Page 61: ...Gas Pipe Hot Water Return Line Size the water supply piping to allow for maximum flow rates of the units Hot Water 1 1 4 2 Water supply Also disconnect this connector on units 2 6 Disconnect this Conn...

Page 62: ...the pump set dipswitch 2 to OFF See SC 201 6M Installation Manual page 13 Do not connect more than one pump to the tank thermostat Hot Water Supply Remote Controller Option 2 Unit Control Option 1 Tan...

Page 63: ...2345678 B5 B5 System Controller No 5 No 4 No 3 No 2 Remote Control terminal block Remote control terminal block System select connectors Disconnect this Connector Disconnect this Connector Disconnect...

Page 64: ...ORPORATION Note Do not connect power to the water heater before the remote controller has been properly installed Do not disassemble the remote controller Wall Packing Connecting Wire Remote Controlle...

Page 65: ...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 66: ...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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