Ugolini MINIGEL PLUS 1 Manual De Servicio página 43

electrovalves.
5 Disassemble the geared motors and check the evaporator capillary tube entry and the suction line outlet.
6 Check the copper pipes up to the compressor.
7 Inspect the "Low Pressure" zone of the compressor, checking the connections on the suction and inlet pipes.
Incorrect adjustment of the Production Parameters may compromise the opera-
tion of the machine.
8 Once the leak has been identified, seal it and charge with gas according to the instructions below.
12. 2 HOW TO EMPTY THE CIRCUIT
1 Remove all the machine's panels.
2 Remove the cap from the "Charge" pipe valve on the compressor.
3 Connect the compressor "Charge" tube to the "Low" filling unit on the "pressure Gauge" (see figure).
4 Connect the "VAC" filling unit on the pressure gauge to an appropriate and approved gas collection device.
The refrigerant gas may be highly acidic and toxic.
5 Open the "Low" and "VAC" valves and collect the gas.
6 Once the discharge operation is complete, close the "Low" and "VAC" valves and disconnect the collection equipment.
12. 3 HOW TO EMPTY THE SYSTEM
Before emptying the system, always replace the dehydrator filter with a new one.
1 Connect the "REF" filling unit on the pressure gauge to the charging unit.
2 Connect the "VAC" filling unit to the vacuum pump and open the "VAC" valve.
3 Open the valve on the charging unit and, for a moment, also open the "REF" valve on the pressure gauge, to remove air from
the "REF" pipe.
4 In machines with more containers, disconnect the electrovalves from the machine's internal cabling and supply power to them
directly using an auxiliary power supply. This way, the electrovalves are open and the whole circuit is ready to be evacuated.
IMPORTANT
WARNING
figure 5
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