Crystal Vertical 120, Инструкция по установке и эксплуатации, Страница: 25 / 29

24
5.2 Using the pressure gauge
The gauge is for monitoring the pressure of the refrigerant contained in the heat pump.
The values it indicates can vary considerably, depending on the climate, temperature and atmospheric pressure.
When the heat pump is in operation:
The gauge’s needle indicates the refrigerant pressure.
Mean operating range between 250 and 400 PSI, depending on the ambient temperature and atmospheric
pressure.
When the heat pump is shut down:
The needle indicates the same value as the ambient temperature (within a few degrees) and the corresponding
atmospheric pressure (between 150 and 350 PSI maximum).
If left unused for a long period of time:
Check the pressure gauge before starting up the heat pump. It must indicate at least 80 PSI.
If the pressure goes down too much, the heat pump will display an error message and automatically go into
‘safe’ mode.
This means that there has been a leakage of refrigerant and that you must call a qualified technician to
replace it.
This means that there has been a leakage of refrigerant and that you must call a qualified technician to
identify why the leak occurred, rectify the cause and replace the gas.