John Wood Power Direct Vent (ENERGY STAR) - Manual (Page 6)

Relief Valve Requirements (T&P)
All water heaters must be fitted with a proper temperature
and pressure relief valve. These valves must be certified
as meeting the requirements of the “Standard For Relief
Valves For Hot Water Supply Systems, ANSI Z21.22/
CSA 4.4”.
MAKE SURE THE FLOW OF COMBUSTION AND
VENTILATION AIR IS NOT RESTRICTED.
If this water heater has been exposed to flooding, freezing,
fire or any unusual condition, do not put it into operation until
it has been inspected and approved by a qualified service
technician.
THESE CONDITIONS CAN RESULT IN UNSEEN
INTERNAL DAMAGE and are not subject to warranty cov-
erage.
III) INSTALLATION
Unpacking the Water Heater
WARNING
Excessive Weight Hazard
Use two or more people to move and install
water heater. Failure to do so can result in
back or other injury.
Important: Do not remove any permanent instructions,
labels, or the data label from outside of the water heater or
on the inside of panels.
•
Remove exterior packaging and place installation com-
ponents aside.
•
Inspect all parts for damage prior to installation and start-
up.
•
Completely read all instructions before attempting to
assemble and install this product.
If you observe damage to the water heater or any of its com-
ponents, DO NOT ASSEMBLE OR INSTALL IT OR MAKE
ANY ATTEMPT TO FIX THE DAMAGED PART(S). Contact
the place of purchase for further instructions.
•
After installation, dispose of packaging material in the
proper manner.
Location Requirements
Do not use or store flammable products such as gasoline,
solvents or adhesives in the same room or area near the
water heater. If such flammables must be used, all gas burn-
ing appliances in the vicinity must be shut off and their pilot
lights extinguished. Open the doors and windows for ventila-
tion while flammable substances are in use.
Site Location
•
The water heater must be installed indoors and in a verti-
cal position on a level surface.
•
Maximum ambient temperature 50°C (122°F).
Note: The water heater may be installed in a closet with
a door off a bedroom or bathroom providing the units are
installed and vented per the manufacturer’s instructions.
45mm MAX
(1 3/4 in.)
AT LEAST 50mm (2 in.)
GREATER THAN THE
WATER HEATER AND
BOTTOM AIR BOX.
PIPE TO
ADEQUATE
DRAIN
Figure 1. Drain Pan Installation
•
Consider the air intake and exhaust vent system piping
when selecting the water heater location. The venting
system must be able to run from the water heater to the
termination with a minimal length and number of elbows.
The venting system must comply with the requirements
set forth in the venting section of this manual.
•
Locate the water heater near the existing gas piping. If
installing a new gas line, locate the water heater to mini-
mize the pipe length and elbows.
Note: This water heater 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.).
IMPORTANT:
This water heater must be installed strictly in accordance
with the instructions enclosed, and local electrical, fuel
and building codes. It is possible that connections to
the water heater, or the water heater itself, may develop
leaks. IT IS THEREFORE IMPERATIVE that the water
heater be installed so that any leakage of the tank or
related water piping is directed to an adequate drain in
such a manner that it cannot damage the building, fur-
niture, floor covering, adjacent areas, lower floors of the
structure or other property subject to water damage. This
is particularly important if the water heater is installed in
a multi-story building, on finished flooring or carpeted
surfaces. THE MANUFACTURER WILL NOT ASSUME
ANY LIABILITY for damage caused by water leaking from
the water heater, pressure relief valve, or related fittings.
Select a location as centralized within the piping system
as possible. In any location selected, it is recommended
that a suitable drain pan be installed under the water
heater. This pan must limit the water level to a MAXIMUM
depth of 45mm (1 3/4 in.) and have a diameter that is a
minimum of 50mm (2 in.) greater than the diameter of the
water heater. Suitable piping shall connect the drain pan
to a properly operating floor drain. When used with a fuel-
fired heater, this drain pan must not restrict combustion
air flow.
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