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3.6 PUMP DOWN
This procedure is performed when the group must
be moved or assistance is provided to the
refrigerant circuit.
Fig. 7
Fig. 8
WARNING! To make sure
to perform the procedure of
emptying with the group in
COLD MODE.
pressure
gauge valve
Open
Cylinder
gas
R410A
Indicator of
pressure
Close
Vacuum pump
Emptying allows you to collect everything
the refrigerant in the external unit without yes
verify losses
3.7 RECOVERY PROCEDURE
- Connect a low pressure gauge with
a pipe to the service port of the gas valve.
- Open the gas valve in half and empty the air
from the pressure gauge piping using gas
refrigerant.
- Completely close the liquid valve.
- Turn on the machine in cooling mode.
- When the pressure of the pressure gauge moves
between
0 and 0.5 kg / cm 2G (between 14.2 and 7.1 P.S.G.I)
completely close the gas valve e turn off the air
conditioner quickly.
The complete recovery of the refrigerant of the
outdoor unit.
12
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