Rheem Electric Domestic Water Heater Installation And Owner's Manual page 32

CONNECTIONS – ELECTRICAL
For reasons of safety and economy, we advise the thermostat be set at the
lowest temperature that will provide sufficient hot water. Dishwasher running
costs can be adversely affected if the thermostat is set below 65°C. Discuss the
thermostat setting requirements with the householder.
If this water heater is installed as part of a solar water heating system:
the solar control system must be of a design to limit solar contribution so the
water temperature in the tank does not exceed 80°C. This is necessary to
ensure the solar input does not cause the thermostat‟s over-temperature
cut-out to operate.
we recommend the water heater thermostat is set at 60°C to maximise solar
contribution.
ASSEMBLY OF ADJUSTER MECHANISM ON OPTIMA MODEL
When the front cover has been removed, reassemble as follows:
Remove the knob from the front
cover by depressing the locking
tabs on the inside of the front
cover.
Turn the thermostat
lowest temperature
"Temperature
page 5).
Fit the front cover.
Insert the
through the
thermostat adaptor slots.
Align the knob slots over the „T‟ drive on the connector shaft, with the dial at
the lowest setting – a firm push with the hand on the knob front face will
engage the locking tabs.
to the
(refer to
Adjustment"
on
connector shaft
hole into the
32