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6020930
possible. Verify the mandatory nature and the documentation required in regulation n.517/2014
and its subsequent amendments or repeals.
As the manufacturer, we recommend that the following service plan is maintained (if necessary, carried out
by a specialist company). Non-compliance can have a negative effect on error-free operation and the
expected product service life of the heat pump.
OPERATION
1 month 6 months
Mandatory
Filling the water circuit.
x
Presence of bubbles in the water circuit.
x
Check the proper working of the safety and control devices.
x
x
Check that there are no oil leaks from the compressor.
x
x
Check if there is a possible water leakage from the water circuit.
x
x
Check that the flow switch works properly.
x
x
Check that the crankcase heaters are powered and running.
x
x
Clean the metal filters of the water circuit.
x
x
Clean the finned coil with compressed air.
x
x
Check that the electric terminals both inside the electric panel and in the
terminal blocks of the compressor are well tightened.
x
Tightening of plumbing connections.
x
Check fixing and balancing of the fans.
x
Correct electric voltage.
x
Correct absorption.
x
Check the refrigerant charge.
x
Check the operating pressure, superheating and sub-cooling.
x
Circulation pump efficiency.
x
Check the expansion vessel.
x
If the unit should be out of service for a long period, drain water from the pipes
and from the heat exchanger. This operation is necessary if, during seasonal
stoppages, ambient temperature is expected to go down below the freezing
point of the employed fluid.
x
9.1
CLEANING THE FINNED COIL
To correctly clean the coil, follow the instructions below:
a) Remove any superficial filth. Debris such as leaves, fibres etc. must be removed without a vacuum
cleaner (use a brush or another soft tool carefully avoiding scratching with metal or abrasive parts). If you
use compressed air, pay attention to keep the air flow perpendicular to the surface of the coil in order not
to bend the aluminium fins. Pay attention not to bend the fins with the nozzle of the compressed air lance.
b) Rinse. Rinse with water. It is possible to use chemical substances (specific detergents for finned coils).
Rinse the coils by letting the water run inside each individual passage of the fins, until they are perfectly
clean. Pay attention to direct the water jet perpendicular to the surface of the coil in order not to bend the
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