Installation; Location - Rheem Maximus Manual

This water heater must be installed in accordance with these instructions, local codes, utility company requirements,
and/or in the absence of local codes, use the latest edition of the American National Standard/National Fuel Gas Code. A
copy can be purchased from either the American Gas Association, 400 N. Capitol Street NW, Washington, DC 20001 as
ANSI standard Z223.1 or National Fire Protection Association, 1 Batterymarch Park, Quincy, MA 02269 as booklet NFPA 54.

Location

The water heater should not be located in an area where
leakage from the tank or connections will result in damage
to the area adjacent to the heater or to lower floors of the
structure.
When such areas cannot be avoided it is recommended that
a suitable drain pan, adequately drained, must be installed
under the water heater.
The auxiliary drain pan installation MUST conform with
local codes.
The water heater must be positioned in the drain pan as
shown. Ensure that the condensate-tee is located inside the
drain pan. Recommended minimum drain pan size of 28"
diameter.
DRAIN PAN
Drain pan kits are available from the store where the water
heater was purchased, or any water heater distributor.
Make certain the floor underneath the water heater is
strong enough to sufficiently support the weight of the
water heater once it is filled with water.
This gas-fired water heater or any other appliance should
not be installed in a space where liquids which give
off flammable vapors are to be used or stored. Such
liquids include gasoline, LP gas (butane or propane),
paint or adhesives, thinners, solvents and/or combustible
removers.
WARNING:
Combustible construction refers to adjacent walls and
ceilings and should not be confused with combustible or
flammable products and materials. Combustible and/or
flammable products and materials should never be stored
in the vicinity of this or any gas appliance.
Because of natural air movement in a room or other
enclosed space, flammable vapors can be carried some
distance from where liquids which give off flammable
vapors are to be used or stored. The open flame of the
water heater's main burner can ignite these vapors creating
a shut down condition which will not allow the water heater
to ignite.
Rheem Water Heating FVIR certified gas water heaters can
be installed on a residential garage floor without the use
of an 18 in. (46 cm.) stand in accordance with the National
Fuel Gas Code, ANSI Z223.1/NFPA 54, unless otherwise
directed by State and Local code requirements. The water
heater must be located so it is not subject to physical
damage, for example, by moving vehicles, area flooding,
etc.
IMPORTANT: DO NOT install the water heater in a location
where it may be subjected to ambient temperatures
exceeding 125°F (52°C).
• The water heater should be installed so as to minimize
the length of plastic vent and combustion air-inlet
pipe and the number of vent and combustion air-inlet
connection fittings required.
• See Vent and Combustion Air-Inlet Section for vent
system requirements.
• Hot water lines should be insulated to conserve water
and energy.
• Protect the water heater and water lines from exposure
to freezing temperatures.
• DO NOT install this water heater outdoors.
• Minimum clearances from combustible construction:
Front Sides
5 In. 0 In.
(12.7 cm) (0 cm)
The Exhaust Tee located on the right front of the unit will require additional
side clearance of approximately 2.75" from the water heater.
NOTICE:
For proper operation and maintenance, a minimum
clearance of 1.5 inches (3.8 cm) must be provided from
the combination temperature and pressure relief valve to
any wall or object.
"Front" Clearance dimension is measured from the water
heater jacket to the closet door.
"Top" clearance dimension is measured from the jacket top
of the water heater to the ceiling.

INSTALLATION

Rear Top
0 In. 15 In.
(0 cm) (30.5 cm)
7