John Wood Superflue Power Vent (75 Gallon) - Manual (Page 7)

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.
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 war-
ranty coverage.
III) INSTALLATION
Unpacking the Water Heater
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
The water heater must be installed indoors in an area not
subject to freezing temperatures and in a vertical position
on a level surface. Water heaters located in unconditioned
spaces (e.g., attics, basements etc.) may require insulation
of the water piping, drain piping and venting to protect
against condensation. The power vented series of water
heaters are designed to vent the products of combustion
horizontally through the wall or vertically through the roof.
The blower expels the products of combustion by means of
plastic piping to the outdoors without the need for a con-
ventional chimney.
Select a location as centralized within the piping system as
possible. The heater should be located in an area where
leakage of the tank or connections will not result in damage
to the area adjacent to the water heater or to lower floors of
the structure (see "IMPORTANT" notice above). Before
installing this water heater, consideration and planning must
be given to the following details:
• Proximity to walls and other objects (see "Clearance
and Accessibility").
• Air supply (see “Air Requirements”).
• Access to gas supply (see "Gas Supply").
• Routing and support of the vent piping and termination
(see "Exhaust Venting").
• Position of water supply and placement of water piping
and floor drain (see "Water Supply").
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.
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 relat-
ed water piping is directed to an adequate drain in such a
manner that it cannot damage the building, furniture, floor
covering, adjacent areas, lower floors of the structure or
other property subject to water damage. This is particular-
ly important if the water heater is installed in a multi-story
building, on finished flooring or carpeted surfaces. GSW
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.
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.
CAUTION
Hydrogen gas can be produced in a hot water system
served by this heater that has not been used for a long
period of time (generally two (2) weeks or more).
Hydrogen gas is extremely flammable and can ignite
when exposed to a spark or flame. To reduce the risk of
injury under these conditions, it is recommended that the
hot water faucet be opened for several minutes at the
kitchen sink before using any electrical appliance con-
nected to the hot water system. Use caution in opening
faucets. If hydrogen is present, there will probably be an
unusual sound such as air escaping through the pipe as
the water begins to flow. There should be no smoking or
open flame near the faucet at the time it is open.
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