Polaris PC 130-34 2NV User Manual

21

…  Centrally located with the water piping system. Located 

as close to the gas piping and vent pipe system as pos-
sible.

…

  Located indoors and in a vertical position. Protected   

from freezing temperatures.

…

  Proper clearances from combustible surfaces main-

tained and not installed directly on a carpeted floor. 
Sufficient room to service the water heater.

…

  Provisions made to protect the area from water dam-

age. Properly sized metal drain pan installed and piped 
to an adequate drain.

…

  Installation area free of corrosive elements and      

flammable materials.

…  Drain stem is fully inserted in the elbow and glued   

properly.

…  Trap aligned so that the exhaust pipe is in a vertical 

position close to the surface of the water heater.

…  Line properly sloped to adequate drain or approved    

condensate pump.

…  Properly vented.
…  Protected from freezing (if required).

…  Vent pipe and fittings of approved material. 
…  Acceptable size, length, and number of elbows on air 

inlet pipe.

…  Acceptable size, length, and number of elbows on 

exhaust outlet pipe.

…  Add the air inlet filter per the manufacturer’s instruction.
…  Installed in accordance with prevailing provisions of 

Local codes, or in the absence of such, National  Fuel  
Gas Code, NFPA 54, ANSI Z223.1-Current Edition.  
Canadian Installations must be performed in accor-
dance with CAN/CSA-B149.1-Current Edition.

…  All 2” horizontal piping sloped down toward the water 

heater at 1/4” per foot (21 mm per meter). 3” piping 
sloped down towards the heater at 1/8” per foot (10.5 
mm per meter). 

…  Not obstructed in any way.

…  Correct relationship - outlet to inlet.
…  12” Min. (30.5 cm) above grade/snow level.
…  2” exhaust outlet/air inlet pipe sloped down towards 

water heater at 1/4” per foot (21 mm per meter).  3” 
piping sloped down towards the heater at 1/8” per foot 
(10.5 mm per meter). 

…  Away from corners, other vents, windows, etc.

…  Correct relationship - outlet to inlet.
…  12” Min. (30.5 cm) above anticipated snow level.
…  2” exhaust outlet/air inlet pipe sloped down towards 

water heater at 1/4” per foot (21 mm per meter).  3” 

piping sloped down towards the heater at 1/8” per foot 
(10.5 mm per meter). 

…  Away from corners, other vents, windows, etc.

       

…  Inlet - 12” Min. (30.5 cm) above roof/snow level.
…  Correct relationship - outlet to inlet.
…  Away from corners, other vents, windows, etc.

…  12” Min. (30.5 cm) above grade/snow level.
…  2” exhaust outlet/air inlet pipe sloped down towards 

water heater at 1/4” per foot (21 mm per meter).  3” 
piping sloped down towards the heater at 1/8” per foot 
(10.5 mm per meter). 

…  Away from corners, other vents, windows, etc.

…  Temperature and pressure relief valve properly 

installed with a discharge line run to an open drain and 
protected from freezing.

…  All piping properly installed and free of leaks.
…  Heater completely filled with water.
…  A properly sized expansion tank must be installed on all 

closed systems.

…  A mixing valve must be installed per the manufacturer’s 

instructions.

…  If using a flexible gas connector, make sure its rating 

tag matches or exceeds the input of the  water heater.

…  Adequate pipe size and of approved material.
…  Gas supply is the same type as listed on the water    

heater data plate.

…  Gas line equipped with full opening shut-off valve,   

union and drip leg.

…  Approved pipe joint compound used.
…  Chloride-free soap and water solution or other  ap-

proved means used to check all connections and fit-
tings for possible gas leaks.

…  Unit connected to a dedicated power supply.
…  Unit connected to a 120V electrical supply.
…  Proper polarity.
…  Water heater properly grounded.
…  Installed in accordance with prevailing provisions of 

local codes, or in the absence of such, National Fuel  
Gas Code, NFPA 54, ANSI Z223.1-Current Edition.  
Canadian installations must be performed in accor-
dance with CAN/CSA-B149.1-Current Edition.