Technical data

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 to the

lowest temperature (refer to

“Temperature Adjustment” on

page 5).

Fit the front cover.

Insert the connector shaft

through the hole into 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.