38
Ambient temperature: 32 °C
Temperature produced in the tank: 0 °C
In these conditions, the evaporation temperature should be approximately -10 °C and the condensation temperature approximately
50°C.
These temperatures should correspond with the temperatures indicated in the table below, depending on the refrigerant gas used:
13 COMPRESSOR FAULTS
To establish if a malfunction has occurred, proceed as follows:
1 Disconnect the machine’s plug from the power supply.
2 Disconnect the conductors from the compressor terminals.
3 Using an ohmmeter, measure the isolation between the terminals and the compressor housing. If the instrument indicates
continuity, the compressor has short-circuited.
4 In this situation, the compressor must be replaced using the following method:
5 Collect the gas as described in the paragraph "Discharging the gas".
6 Remove the faulty compressor.
7 Eliminate the cause of the compressor fault (check the conditions of the condenser both when the machine is started up and
when it is operating, and also the condition of the starter relay as possible sources and causes of the fault).
8 Install a new compressor and a new dehydrator filter.
9 Empty and charge the circuit as described above.
Refrigerant gas Evaporation Pressure Condensation Pressure
R134a 1,00 bar 12,17 bar
R404a 4,10 bar 21,93 bar