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

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water heater’s hot water outlet.
CAUTION: Operating an empty or partially filled solar water heater
will result in damage to the tank.
If a solar water heater is installed in a closed water system; such as
one having a back flow preventer, check valve or water meter with
check valve in the cold water supply line, means shall be provided
to control thermal expansion. Contact the water supplier or local
plumbing contractor on how to control this situation.
INSTALLATION IN RESIDENTIAL GARAGES: The solar water
heater must be located and/or protected so it is not subject to
physical damage by a moving vehicle.
FILLING THE SOLAR WATER HEATER WITH WATER
WATER INLET
SHUTOFF
VALVE
DRAIN
VALVE
COLD
WATER
INLET
TEMPERED
WATER
OUTLET
TO PUMP
(SOLAR LOOP)
(ALTERNATE)
TO PUMP
(SOLAR LOOP)
FROM
COLLECTOR
(SOLAR LOOP)
(ALTERNATE)
FROM
COLLECTOR
(SOLAR LOOP)
Figure 6.
Before filling the solar water heater with water, the pump station
storage tank loop must be connected to the water heater.
The solar water heater is equipped with top and side pump station
water loop connections. Cap or plug the connections that are not
used in your application.
1. Close the solar water heater drain valve. The drain valve is on
the lower front of the solar water heater.
2. Open the cold water supply to the solar water heater. NOTE:
THIS VALVE MUST BE LEFT OPEN WHEN THE SOLAR
WATER HEATER IS IN USE.
3. Fill the solar water heater until a constant flow of water runs out
an opened hot water faucet. This will let out air in the solar
water heater and the piping. Close the faucet and solar loop
air vent after all air has been purged and the water comes out
with constant flow. You must not turn the electricity on until
the solar water heater is full of water. IF ANY AIR IS LEFT
IN THE TOP OF THE SOLAR WATER HEATER OR IN THE
PUMP STATION STORAGE TANK LOOP THE HEATING
ELEMENT WILL BURN OUT IMMEDIATELY.
4. Check all the new water piping for leaks. Fix as needed.
5. Never alter or modify the certified construction of the water
heater system or its components, or bypass any safety
features. Doing so voids all warranties.
T&P VALVE and PIPE INSULATION
(Selected Models)
Remove insulation for T&P Valve and pipe connections from
carton.
Fit pipe insulation over the incoming cold water line and the hot
water line. Make sure that the insulation is against the top cover of
the heater.
Fit T&P Valve insulation over valve. Make sure that the insulation
does not interfere with the lever or outlet of the T&P valve.
Secure all insulation using tape.
Figure 7.
WIRING OF ELEMENT
Never use water heater unless it is completely full of water. To
prevent damage to the tank and heating element, the tank must
be filled with water. Water must flow from the hot water faucet
before turning on power.
You must provide all wiring of the proper size outside of the
water heater. You must obey local codes and electric company
requirements when you install this wiring.
If you are not familiar with electric codes and practices, or if you