John Wood Power Direct Vent (ENERGY STAR) - Manual (Page 7)

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The water heater should be located in an area not sub-
ject to freezing temperatures. Water heaters located in
unconditioned spaces (i.e., attics, basements, etc.) may
require insulation of the water piping and drain piping
to protect against freezing. The drain and controls must
be easily accessible for operation and service. Maintain
proper clearances as specified on the data plate.
Clearances and Accessibility
FRONT 610mm
(24 in.) MIN.
FOR SERVICE
BACK
SIDES
SIDES
VENT
TOP TO
CEILING
Figure 2. Minimum Clearance Locations
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The minimum clearances between the heater and com-
bustible materials are:
Top 406mm (16 in.)
Front 100mm (4 in.)
Rear and Sides 25mm (1 in.)
Vent Pipe through Wall 0mm (0 in.)
Note: These requirements are also listed on the data plate
located on the front of the water heater.
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The water heater is certified for installation on a combus-
tible floor.
Important: If installing over carpeting, the carpeting must
be protected by a metal or wood panel beneath the water
heater. The protective panel must extend beyond the full
width and depth of the water heater by at least 76mm (3 in.)
in any direction or if in an alcove or closet installation, the
entire floor must be covered by the panel.
Figure 2 may be used as a reference guide to locate the
specific clearance locations. A minimum of 610mm (24 in.)
of front clearance and 100mm (4 in.) on each side should be
provided for inspection and service.
In Earthquake Zones
Note: The water heater must be braced, anchored, or
strapped to avoid moving during an earthquake. Contact
local utilities for code requirements in your area.
Gas Supply
DANGER
Explosion Hazard
• Use a new CSA approved gas supply line.
• Install a gas supply shut-off valve.
• Do not connect a natural gas water heater
to a L.P. gas supply.
• Do not connect a L.P. gas water heater to
a natural gas supply
• Failure to follow these instructions can
result in death, an explosion or carbon
monoxide poisoning.
Gas Requirements
Read the data plate to be sure the water heater is made
for the type of gas you will be using in your home. This
information will be found on the data plate located near the
gas control valve. If the information does not agree with the
type of gas available, do not install or light. Call your dealer.
Note: An odourant is added by the gas supplier to the gas
used by this water heater. This odourant may fade over an
extended period of time. Do not depend upon this odourant
as an indication of leaking gas.
Gas Piping
This gas piping must be installed in accordance with all local
and provincial or state codes or, in the absence of such, the
latest edition of “Natural Gas and Propane Installation
Code” CSA-B149.1 (Canada), or “National Fuel Gas
Code” ANSI Z223.1 (NFPA 54) (U.S.A.).
Note: When installing gas piping, apply sealing compounds
approved for use with natural and propane gas.
Figure 3. Gas Piping
SEDIMENT
TRAP (DIRT
LEG)
MANUAL
GAS
SHUT-OFF
GAS
CONTROL/
THERMOSTAT
76mm
(3 in.)
GROUND-
JOINT UNION
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