INSTALLATION – SOLAR STORAGE TANK
23
REDUCING HEAT LOSSES
The cold water line to and the hot water line from the water heater must be insulated in accordance with the
requirements of AS/NZS 3500.4. The insulation must be weatherproof and UV resistant if exposed.
The pipe work between the solar storage tank and the solar collectors may be required to be insulated. Refer
to
on page 29.
ANODE
The vitreous enamel lined cylinder of the water heater is only covered by the Rheem warranty when the total
dissolved solids (TDS) content in the water is less than 2500 mg/L and when the correct colour coded anode
is used. If an incorrect colour coded anode is used in the water heater, any resultant faults will not be covered
by the Rheem warranty. In addition, the use of an incorrect colour coded anode may shorten the life of the
water heater cylinder.
The correct colour coded anode for the water supply being used must be selected and fitted to the water heater
for the Rheem warranty to apply to the water heater cylinder (refer to
on page 12 and the
on page 12). The black anode is typically fitted as standard.
Total Dissolved Solids
Anode colour code
0
– 400 mg/L
Black
400
– 600 mg/L
Black or Blue
600
– 2500 mg/L
Blue
2500 mg/L +
Blue (no cylinder warranty)
If the TDS is greater than 600 mg/L and the anode has not been changed to a blue anode, there is the
possibility the anode may become overactive and hydrogen gas could accumulate in the top of the water heater
during long periods of no use. In areas where this is likely to occur, the installer should instruct the householder
on how to dissipate the gas safely (refer to
on page 13).
SADDLING - PIPE WORK
To prevent damage to the cylinder when attaching pipe clips or saddles to the water heater jacket, we
recommend the use of self-drilling screws with a maximum length of 13 mm. Should pre-drilling be required,
extreme caution must be observed when penetrating the jacket of the water heater.
Note: If the cylinder is damaged as a result of attaching pipe clips or saddles to the jacket, any resultant
faults will not be covered by the Rheem warranty.
BOOSTER HEATING UNIT
The booster heating unit is for heating the water at times of low solar energy gain, such as during very cloudy
or rainy weather, or during the colder months. Refer to
on page 45 for electrical
connection requirements and control options of the booster heating unit.
If this water heater is installed with an in-series booster, then the electric booster heating unit in the solar
storage tank will not need to be connected to a power supply.