State GPG 81 370NEA - Manual (Page 10)

10
The heater must not be located in an area where it will be
subject to freezing.
locate it near a floor drain. The heater should be located
in an area where leakage from heater or connections will
not result in damage to adjacent area or to lower floors of
the structure.
When such locations cannot be avoided, a suitable metal
drain pan should be installed under heater. Such pans
should be fabricated with sides at least 2” deep, with length
and width at least 2” greater than diameter of heater and
must be piped to an adequate drain. Pan must not restrict
combustion air flow.
clearances
These heaters are approved for installation on non-combustible
flooring in an alcove when the minimum clearance from
combustion or non-combustible construction are followed as
indicated in Figure 7 and Table 4.
units which are to be installed on combustible flooring must
be supported by a full layer of hollow concrete blocks, from
8" to 12"
thick and extending 12" (minimum) beyond the heater in all
directions. The concrete blocks must provide an unbroken
concrete surface under the heater with the hollows running
continuously and horizontally. A 3/16 inch steel plate must
cover the concrete blocks. See Figure 5.
proper installation on combustible flooring
figure 6.
In all installations the minimum combustible clearances from
barometric draft control surface or vent piping shall be 6”
(152mm). Vent piping passing through a combustible wall or
ceiling must be a continuous run (no joints) and retain 6”
(152mm) clearance unless an approved reducing thimble is used.
A service clearance of 24” (610mm) should be maintained from
serviceable parts, such as relief valves, baffles, thermostats,
cleanout openings or drain valves.
table 4. installation clearances
a
(right side)
b
(leftside)
c
(back)
d
(ceiling)
GPG 81-140 6" (15.24 cm) 6" (15.24 cm) 6" (15.24 cm) 21" (53.34 cm)
GPG 81-199 6" (15.24 cm) 6" (15.24 cm) 6" (15.24 cm) 21" (53.34 cm)
GPG 81-270 6" (15.24 cm) 6" (15.24 cm) 6" (15.24 cm) 21" (53.34 cm)
GPG 81-370 6" (15.24 cm) 6" (15.24 cm) 6" (15.24 cm) 24" (60.96 cm)
locating the water heater
Property Damage Hazard
All water heaters eventually leak. •
Do not install without adequate drainage. •
CAUTION
When installing the heater, consideration must be given to
proper location. location selected should be as close to the
stack or chimney as practicable, with adequate air supply and
as centralized with the piping system as possible.
Fire or Explosion Hazard
Read instruction manual before
installing, using or servicing
water heater.
Avoid all ignition sources if you smell gas.
Do not store or use gasoline or other flammable vapors and
liquids in the vicinity of this or any other appliance.
Use only the gas shown on the water heater rating label.
Keep ignition sources away from faucets after extended
periods of non-use.
Maintain required clearances to combustibles.
Do not expose water heater controls to excessive gas
pressure.
There is a risk in using fuel burning appliances such as gas water
heaters in rooms, garages or other areas where gasoline, other
flammable liquids or engine driven equipment or vehicles are stored,
operated or repaired. Flammable vapors are heavy and travel
along the floor and may be ignited by the heater’s igniter or main
burner flames causing fire or explosion. Some local codes permit
operation of gas appliances in such areas if they are installed 18”
or more above the floor. This may reduce the risk if location in
such an area cannot be avoided.
Do not install this water heater directly on a carpeted floor. A fire
hazard may result. Instead the water heater must be placed on a
metal or wood panel extending beyond the full width and depth by at
least 3 inches in any direction. If the heater is installed in a carpeted
alcove, the entire floor shall be covered by the panel. Also, see the
DrAINING requirements in mAINTeNANCe Section.
The heater shall be located or protected so it is not subject to physical
damage by a moving vehicle.
Flammable items, pressurized containers or any other potential
fire hazardous articles must never be placed on or adjacent to
the heater. Open containers or flammable material should not be
stored or used in the same room with the heater.
installation considerations