Picco R32 Inverter air/water heat pumps with axial fan
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OPERATION M / R
1
month
4
months
6
months
12
months
Filling the water circuit. R x
Presence of bubbles in the water circuit. R x
Check the proper working of the safety and control devices. M x
Check that there are no oil leaks from the compressor. R x
Check if there is a possible water leakage from the water circuit. R x
Check that the ow switch works properly. M x
Check that the crankcase heaters are powered and running. R x
Clean the metal lters of the water circuit. M x
Clean the nned coil with compressed air or water jet. R x
Check that the electric terminals both inside the electric panel and in the terminal blocks of
the compressor are well ghtened.
M x
Tightening of plumbing connecons. R x
Check xing and balancing of the fans. R x
Clean the air lters in the electrical panel or replace them if necessary.(when present). M x
Correct electrical voltage and phase imbalance (without load and under load). R x
Correct absorpon. R x
Check the refrigerant charge and eventual refrigerant leaks. M x
Check the operang pressure, superheang and sub-cooling. R x
Circulaon pump eciency. R x
If the unit is to be out of service for a long period, drain the water from the pipes and the heat
exchanger. This operaon is indispensable if, during the shutdown period, ambient tempera-
tures are expected to be below the freezing point of the uid used.
M x
Check the presence of corrosion/ossidaon. R x
Check panel fastening. R x
Check the water quality (see chapter Characteriscs of the system water) and the possible
concentraon of glycol.
M x
Check the pressure drop of any lter driers on the liquid line. R x
Check the hydronic side safety valve in accordance with EN 806-5. R x
GENERALITY
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