Approvals; Model And Rating; Locating The New Water Heater; Facts To Consider About The Location - A.O. Smith HWG-140 Instruction Manual

facts to consIder aBout the locatIon

Installation of the water heater must be accomplished in such a
manner that if the tank or any connections should leak, the flow will
not cause damage to the structure. For this reason, it is not advisable
to install the water heater in an attic or upper floor.
Water heater life depends upon water quality, water pressure and
the environment in which the water heater is installed. Water heaters
are sometimes installed in locations where leakage may result in
property damage. However, unanticipated damage can be reduced
or prevented by a leak detector or water shut-off device. These
devices are available from some plumbing supply wholesalers and
retailers:
Carefully choose a location for the new water heater. The placement
is a very important consideration for the safety of the occupants in
the building and for the most economical use of the equipment.
The water heater should be located in an area where the general
public does not have access. If a suitable area is not available, a
cover should be installed over the thermostat to prevent tampering.

approVals

Model and ratInG

locatInG the new water heater

7
asMe
Whether replacing an old water heater or putting the water heater in
a new location, the following critical points should be observed. The
water heater should be located:
1. On a level surface. Shim the channel type skid base as
necessary if levelling is required.
2. Near a floor drain. 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 heater or to lower floors of the structure.
3. The discharge opening of the temperature and pressure relief
valve should always be piped to an open drain.
4. Close to the point of major hot water usage and the power
supply.
Hot water piping and branch circuit wiring should be as short as possible.
Insulate hot and cold water piping where heat loss and condensation
may be a problem.
Heater construction permits installation, maintenance, and service
work to be performed from the front of the unit. Ensure enough frontal
clearance so that the piping and coil may be removed from the tank.
Suggested clearances from adjacent surfaces are 12 inches on top,
for access to the unit.
The heater may be installed on or against combustible surfaces. The
left side and back may be placed flush against adjacent surfaces.
The temperature of the space in which the water heater is installed
must not go below 32°F or above 122°F.