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SAFETY
Safety Instructions:
6
Improper venting may cause a build-up of carbon monoxide (CO).
Breathing carbon monoxide can cause brain damage or death. Read and
follow the above instructions carefully.
If the information in these instructions is not followed exactly, a fire or
explosion may result causing property damage, personal injury or death.
DO NOT OPERATE THE WATER HEATER. DO NOT OPERATE
ANY FAUCETS. Smell all around the water heater area for gas.
Be sure to smell near the floor because as some gas is heavier
than air and will settle near the floor.
Failure to follow the Venting Section of the Installation Manual may
result in the unsafe operation of this water heater. To avoid the risk of
fire, explosion or asphyxiation from carbon monoxide, never operate the
water heater unless it is properly vented to outside and has an
adequate air supply for proper operation.
Be sure to inspect the vent terminator and the air intake pipe annually to
ensure safe operation of the water heater.
Immediately turn off and do not use the water heater if any of the vent
pipes, vent elbows and/or the intake air pipe are :
DO NOT try to light any appliance.
DO NOT touch any electric 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 911 for police and/or the fire
department.
DO NOT return to your home until authorized by your gas supplier or the
fire department.
WHAT TO DO IF YOU SMELL GAS
DANGER
COMPROMISED VENTING SYSTEM
DANGER
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damaged in any way;
have separated at a joint;
are cracked or show evidence of corrosion, rusting or melting;
i.
ii.
iii.
WARNING
Summary of Contents for NR-180A
Page 5: ...SAFETY Safety Instructions 5 this...
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Page 20: ...INSTALLATION Locating the Water Heater 20 or follow local codes...
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Page 24: ...INSTALLATION Pressure Relief Valve 24 Pressure Relief Valve Shut off Valve...
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Page 31: ......
Page 32: ...INSTALLATION Venting 32 ground or local codes...
Page 33: ...INSTALLATION 33 Venting...
Page 34: ......
Page 35: ...INSTALLATION 35 Venting Clearances 1 Natural Natural...
Page 37: ...INSTALLATION 37 Venting Indoor Installation...
Page 39: ...INSTALLATION 39 Venting CONCENTRIC VENT TERMINATION 1 Sidewall Installation 2 Roof Installtion...
Page 40: ...INSTALLATION Venting 40...
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Page 44: ...INSTALLATION PCB Board Settings 44...
Page 45: ...INSTALLATION 45 CascadeConnectionandSet upProcedures...
Page 46: ...INSTALLATION 46...
Page 47: ...INSTALLATION 47...
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Page 55: ...INSTALLATION 55...
Page 56: ...INSTALLATION 56...
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Page 68: ...OPERATION Navien America Inc Limited Warranty 68 12 Grains of hardness may...
Page 69: ...OPERATION 69 Model Description Legend...
Page 70: ...OPERATION General Parts 70 Condensate Water...
Page 71: ...OPERATION 71 General Parts Condensate Water...
Page 72: ...OPERATION Remote Controller 72 Hot Water In Use Indicator...
Page 74: ...OPERATION OPERATION Setting the Clock 74 Hour Minute...
Page 79: ...OPERATION 79 A Series Recirculation Timer Setting 74...
Page 81: ...OPERATION 81 Lock Function Setting...
Page 82: ...OPERATION Well Pump setting function 82...
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Page 89: ...OPERATION 89 A Series External Recirculation Mode...