A.O. Smith Cirrex SUN-80, Instruction Manual

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6
LOCAL CODES
The installation of solar water heater must be in accordance with
these instructions and all applicable local codes and electric utility
requirements. In the absence of local codes, install in accordance
with the current edition of the National Electrical Code (NFPA-70).
TEMPERATURE-PRESSURE RELIEF VALVE
INSTALLING THE NEW SOLAR WATER HEATER
Such a drain pan must have a minimum length and width of at
least 2 inches (51 mm) greater that the water heater dimensions
and must be piped to an adequate drain.
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. 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
the incoming water to the 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 differential between the cold water and hot
water pipes connected to the water heater.
INSULATION BLANKETS
Insulation blankets are available to the general public for external
use on electric water heaters but are not necessary with this
product. The purpose of an insulation blanket is to reduce the
standby heat loss encountered with storage tank heaters. Your
water heater meets or exceeds the National Appliance Energy
Conservation Act standards with respect to insulation and standby
loss requirements, making an insulation blanket unnecessary.
Should you choose to apply an insulation blanket to this heater,
you should follow these instructions below. Failure to follow these
instructions can result in fire, serious personal injury, or death.
• Do not cover the temperature and pressure relief (T & P) valve
with an insulation blanket.
• Do not cover the instruction manual. Keep it on the side of the
water heater or nearby for future reference.
• Do obtain new warning and instruction labels for placement on
the blanket directly over the existing labels.
LOCATING THE NEW SOLAR WATER HEATER
FACTS TO CONSIDER ABOUT THE LOCATION
Carefully choose an indoor location for the new solar water
heater, because the placement is a very important consideration
for the safety of the occupants in the building and for the most
economical use of the water heater.
Whether replacing an old water heater or putting the water
heater in a new location, the following critical points must
be observed:
1. Select a location indoors as close as practical or centralized
to the water piping system as possible. The solar water
heater should be located in an area not subject to freezing
temperatures.
2. Selected location must provide adequate clearances (4”/101.6
mm) for servicing parts such as the thermostats, drain valve, and
relief valve. Adequate clearance for servicing this water heater
should be considered before installation, such as changing the
anodes, etc.
3. The solar water heater should be located so it is not subject to
physical damage by moving vehicles or area flooding.
Installation of the solar 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 solar water heater in an attic or
upper floor. When such locations cannot be avoided, a suitable
metal drain pan should be installed under the solar water heater.
Drain pans are available from your local plumbing contractor.