OPERATION
OPERATION
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4.1.2 Booster heater
Primarily, the water inside the tank is heated by the
heat pump.
When there is a higher hot water demand or when the
water heater was switched OFF and you require hot
water quickly, the integral booster heater will turn on.
To save energy, the booster heater only heats the top
third of the tank (approx. 27 gallons).
A thermostat switches the booster heater on if the water
temperature inside the tank falls below 112 °F (45 °C). A
thermostat switches the booster heater off if the water
temperature inside the tank exceeds 140 °F (60 °C).
4.1.3 Defrosting
The lower limit of use of the water heater is permanently
set to 42 °F (6 °C). It is possible that at this limit, the
evaporator will be coated in frost. This is subject to the
air temperature and humidity level, particularly at low
hot water temperatures.
The compressor will be switched off as soon as the
evaporation temperature falls below 20 °F (-7 °C) for any
length of time. When the temperature at the evaporator
fins rises above 38°F (3 °C), the compressor starts again,
and the hot water heating continues. The fan continues
to run during defrosting.
5. Operation
You do not have to make any adjustments. The water
heater is therefore not equipped with any controls. The
hot water temperature is factory set to 140 °F (60 °C).
Should you wish to operate with different settings,
contact your local licensed installer.
WARNING Scalding
The water is heated inside the water tank to
140 °F (60 °C). There is a risk of scalding at
outlet temperatures in excess of 108 °F (42 °C).
Ensure that outflowing water does not directly
contact your body.
5.1 Initial start-up by a licensed installer
Initial start-up should be done by a licensed installer.
5.2 Starting and stopping
The water heater is not equipped with an ON/OFF switch.
If a power plug was fitted during installation, you can
disconnect the water heater from the power supply by
pulling that plug. Alternatively, you can terminate the
water heater operation by tripping the circuit breaker.
5.3 Emergency stop
In case of emergency, carry out the following steps:
» Isolate the power supply by tripping the circuit
breaker or by pulling the power plug.
» Shut off the cold water inlet.
6. Maintenance and care
A damp cloth is sufficient for cleaning the exterior of the
water heater. Never use abrasive or corrosive cleaning
agents. Do not hose down the water heater.
» Monthly, check that the condensate drain is clear.
» Clean the strainer for condensate drain at least
twice annually to prevent sludge buildup.
» Monthly, carry out a visual inspection of the
condensate pan drain (in the top of the water
heater; see the following diagram). Look through
the air intake grille at the front of the water heater.
If required, notify your local licensed installer who
will remove any contamination.
1
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1 Condensate pan drain
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