John Wood Power Direct Vent (ENERGY STAR) - Manual (Page 18)

Installation Checklist
Water Heater Location
 Centrally located with the water piping system. Located
as close to gas piping and vent pipe system as possible.
 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.
 Provisions made to protect the area from water damage.
Drain pan installed and piped to an adequate drain.
 Installation area free of corrosive elements and flam-
mable material.
 Sufficient room to service the water heater.
Gas Supply and Piping
 Gas supply is the same type as listed on the water
heater data plate.
 Gas line equipped with shut-off valve, union and sedi-
ment trap (dirt leg)
 Approved pipe joint compound used.
 Adequate pipe size and of approved material.
 Chloride-free soap and water solution or other approved
means used to check all connections and fittings for
possible gas leaks.
Vent Pipe System
 Vent pipe and fittings of approved material.
 Acceptable size, length and number of elbows on air
intake system.
 Acceptable size, length and number of elbows on
exhaust vent system.
 Installed in accordance with prevailing provisions of
local codes, or in the absence of such, the latest edi-
tion of “Natural Gas and Propane Installation Code”
CSA-B149.1 (Canada), or “National Fuel Gas Code”
ANSI Z223.1 (NFPA 54) (U.S.A.).
 Horizontal piping slopes at an upward pitch of 3mm (1/8
in.) rise per 1.5m (5 ft). away from the water heater.
 Not obstructed in any way.
Vent Termination
Horizontal
 Correct relationship - air intake to exhaust vent.
 305mm (12 in.) min. above grade/snow level.
 Away from corners, other vents, windows etc.
Vertical
 Air intake and exhaust vent terminations 457mm (18 in.)
min. above roof/snow level.
 Correct relationship - air intake to exhaust vent.
 Air intake and exhaust vent terminations on the same
side of roof and facing same direction.
Water System Piping
 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.
 Closed system pressure build-up precautions installed.
Electrical Connections
 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, the latest edition
of “Canadian Electrical Code (CAN/CSA C22.1), Part
I” (Canada) or “National Electrical Code” (NFPA 70)”
(U.S.A.).
If the answer to all of the questions above is “Yes”,
proceed with lighting the heater.
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