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Page 13 of 20
Revision: 9h Issued: 01 August 2008
HOME OWNER USER GUIDELINES
1.
ABOUT YOUR HEATER
MODEL DESCRIPTION SP4002
The SolarPower split system solar water heater model SP4002 has a copper heat exchange storage tank
installed at ground or floor level, remotely from the solar collectors. As the sun heats the water in the
solar collectors the increase in temperature activates the water circulator. The water circulator
switches on whenever the water in the solar collectors is hotter than the water in the tank. Cooler
water from the solar storage tank is circulated to the solar collectors to be heated by the sun’s energy.
This process continues while solar energy is available and will stop if the water in the panels gets
cooler than the water in the tank or if the storage tank reaches its maximum set point.
The solar storage tank is suitable for either outdoor or indoor installation. This system is not suitable
for installation in areas that experience sub-zero temperatures, but does offer a basic freeze protection
for the panels. If you need assistance determining whether your area is suitable for this water heater,
please contact your local SolarPower service agent.
MAINS PRESSURE LIMITS
The water heater is designed to operate at mains pressure by connecting directly to the mains water
supply. If the mains supply pressure exceeds 1100kPa, a pressure-limiting valve must be fitted before
the inlet of the heater, rated at 600kPa.
HOW HOT SHOULD THE WATER BE?
When operated in a domestic situation the system’s outlet temperature should be between 50
o
C and
80
o
C. During periods of low solar energy gain, the water temperature can be boosted by the
thermostatically controlled electric booster heating unit.
The water heater features a tradesperson adjustable thermostat. This requires a licensed tradesperson
to make any temperature adjustments. The thermostat is located inside the upper electrical cover.
SAFETY WARNING:
Ensure all sources of electricity are disconnected from the unit before
removing either of the electrical covers. For reasons of safety and economy we advise you adjust the
thermostat to the lowest setting which meets your needs. Not only will a lower thermostat setting
increase the amount of solar energy collected, but it will also reduce the chances of scalding in houses
not equipped with tempered hot water.
HOTTER WATER INCREASES THE RISK OF SCALD INJURY
We recommend, and it may also be required by regulations, that an approved temperature limiting
device be fitted into the hot water piping to all bathrooms and ensuites. This will keep the hot water
temperature below 50ºC at those outlets. The risk of scald injury will be reduced and still allow hotter
water to the kitchen and laundry.
SAFTEY WARNING
This water heater is not intended to be operated, adjusted or tampered with by young children or infirm
persons. Young children should be supervised to ensure they do not play with the water heater.
