Rheem Gas Heavy Duty Water Heater Models 265 Litre and 275 Litre - Manual (Page 20)

INSTALLATION
20
These conditions may result in either water at a temperature exceeding the
requirements of AS/NZS 3500.4 being delivered to the hot water outlets in the
ablution areas, or the device closing completely and not delivering water at all,
or the device failing. Under either condition, the operation and performance of
the device cannot be guaranteed.
Circulated Hot Water Flow and Return System – Gas Water Heater
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.
Keep temperature settings down. Lower temperatures reduce heat losses and
prolong cylinder life. Do not set the controlling electronic thermostat above
70°C unless it is necessary. A time clock to control the electrical supply can be
used to switch off the water heater during hours or days when it is not in use.
ANODE TYPES
The correct anode type for the water supply being used must be fitted in the
water heater (refer to
“Water Supplies” on page 46). The black anode is fitted
as standard.
Total Dissolved Solids in water supply to the water heater Anode colour code
0-40 mg/L Green
40-600 mg/L Black
600-2500 mg/L Blue