Installation Checklist
A. Water Heater Location
❑
Close to area of vent.
❑
Indoors and protected from freezing
temperatures.
Proper clearance from combustible surfaces
❑
observed and water heater not installed on
carpeted floor.
❑
Sufficient fresh air supply for proper
operation of water heater.
❑
Air supply free of corrosive elements and
flammable vapours.
B. Water Supply
❑
Water heater completely filled with water.
Air purged from water heater and piping.
❑
C. Gas Supply
❑
Gas line equipped with shut-off valve, union
and sediment trap.
❑
The required inlet gas pressure to the water
heater is shown on the water heater rating
plate.
D. Relief Valve
❑
Temperature and Pressure Relief Valve
properly installed and discharge line run to
open drain.
E. Venting
Heater vented separately from all other
❑
appliances.
❑
Flue baffle properly hung in top of heater's
flue.
❑
Blower assembly properly installed.
❑
Proper materials and techniques used in vent
assembly.
❑
Vent pipe properly secured to blower
housing.
F. Wiring
❑
Correct power supply (120 V).
Electrical connections tight.
❑
❑
Provisions made to protect area from water
damage.
❑
Sufficient room to service heater.
Combustible materials, such as clothing,
❑
cleaning materials, rags, etc. clear of the
base of the heater.
❑
Clearances of 1"(2.54 cm) from combustion
air inlet openings observed
❑
Flammable vapour sensor is not blocked.
❑
Water connections tight and free of leaks.
❑ Pressure test as Required in B149.
Soap and water solution used to check all
❑
connections and fittings for possible gas
leak.
Gas Company inspected installation
❑
(if required).
❑
Discharge line protected from freezing.
Vent pipe supported at required intervals.
❑
❑
Appropriate minimum clearances observed.
Precautions taken to prevent moisture
❑
damage around vent termination.
❑
Vapours from vent pipe cement and primer
have dissipated prior to applying electrical
power.
❑
Heater properly grounded and proper
polarity observed.
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