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6. Maintenance and servicing
7. Repairs
6.1 Maintenance and servicing
Cleaning
The heat pump’s casing must be cleaned with a damp cloth. The use of detergents or other house-
hold products could damage the surface of the casing and affect its properties.
The evaporator at the rear of the heat pump must be carefully cleaned with a vacuum cleaner and
soft brush attachment.
Annual maintenance
The following operations must be undertaken by a qualified person at least once a year.
Carry out safety checks.
Check the integrity of the electrical wiring.
Check the earthing connections.
Monitor the state of the pressure gauge and the presence of refrigerant.
WARNING: Before undertaking maintenance work on the unit, ensure that you have
disconnected the electrical power supply.
In the winter months when the ambient temperature is lower than 3°C, a shut-down heat pump must be
winterised to avoid any frost damage.
Winterising in 4 steps
6.2 Winter storage
Step 1
Disconnect the heat pump
from the power supply.
Step 3
Unscrew the drain plug
and water pipes in order to
drain any water from the
heat pump.
Step 2
Open the By-Pass valve.
Close the inlet and outlet
valves.
Step 4
Screw back the drain plug
and pipes or block them
with rags so as to prevent
any foreign bodies from
getting into the circuit.
Finally, protect the pump
with its winter storage
cover.
WARNING
DISCONNECT THE POWER SUPPLY
If a circulating pump is servo-controlled by the heat pump, drain this also.
