A.O. Smith Saudi Arabia, Instruction Manual

Page: 7 / 48

7
LOCATING THE NEW WATER HEATER
USER CARE
USER INFORMATION
However, unanticipated damage can be reduced or prevented by
a leak detector or water shut-off device used in conjunction with a
piped drain pan. These devices are available from some plumbing
supply wholesalers and retailers, and detect and react to leakage
in various ways:
• Sensors mounted in the drain pan that trigger an alarm or turn
off incoming water to water heater when leakage is detected.
• Sensors mounted in the drain pan that turn off the water supply
to the entire home when water is detected in the drain pan.
• Water supply shut-off devices that activate based on the water
pressure diff erential between the cold water and how water pipes
connected to the water heater.
CLEARANCES
A minimum clearance of 4” (10.2 cm) must be allowed for access
to replaceable parts such as thermostats, drain valve and relief
valve.
Adequate clearance for servicing this water heater should be
considered before installation, such as changing the anodes, etc.
FLOOD WARNING
IF THE HEATER BECOMES IMMERSED IN WATER UP TO
OR ABOVE THE LEVEL OF THE BOTTOM OF THE ELEMENT
DOORS, THE HEATER SHOULD BE EXAMINED BY A
COMPETENT SERVICE PERSON BEFORE IT IS PLACED IN
OPERATION.
Water may drip from the discharge pipe of the pressure relief
device and this pipe must be left open to the atmosphere.
The pressure relief device must be operated at least once a year
to insure proper operation, verify that it is not blocked and to
remove lime deposits. This is to be done by a Qualified Service
Agent as a part of the regular maintenance.
THERMOSTAT SETTINGS-SURFACE MOUNT CONTROLS
Adjustment of temperature controls on surface mounted controls is to be performed by a qualifi ed service agent at initial start-up.
DRAINING THE WATER HEATER
The water heater must be drained if it is to be shut down and
exposed to freezing temperatures. Maintenance and service
procedures may also require draining the heater.
FACTS TO CONSIDER ABOUT THE LOCATION
The water heater should be located as close as possible to/or
centralized to the water piping system. The water heater should be
located in an area not subject to freezing temperatures.
The water 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 fl oors of the structure.
When such locations cannot be avoided, a suitable drain pan should
be installed by a qualifi ed installer, under the heater.
Such pans should be at least two 2” (5.1 cm) deep, have a minimum
length and width of at least 2” (5.1 cm) greater than the diameter of
the heater and should be piped to an adequate drain.
Note: For Compact Models without a drain valve, the water heater
will utilize the side connect water inlet as a means for draining.
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, even with the use of a drain pan piped to a drain.