7.4.4
Evacuation
1. Check that isolation valves A and B / C are closed.
2. Connect the vacuum gauge and the vacuum pump to the service
connection on isolation valve A.
3. Produce a vacuum in the indoor module and the refrigeration con
nection pipes.
4. Check the pressure using the recommendations table below:
Tab.22
Outside temperature
°C
≥ 20
10
0
- 10
Pressure to be reached
Pa
(bar)
1000
(0.01)
600
(0.00
6)
250
(0.00
25)
200
(0.00
2)
Evacuation time after reach
ing the pressure
h
1
1
2
3
5. Close the valve between the vacuum gauge / vacuum pump and iso
lation valve A.
6. After shutting off the vacuum pump, immediately open the valves.
7.4.5
Opening the valves
1. Remove the cap from the refrigerant fluid isolation valve, fluid end.
2. Open valve A with a hexagonal spanner by turning anti-clockwise
until it stops.
3. Put the cap back in place.
4. Remove the cap from refrigerant gas isolation valve B or C.
5. Open the valve.
Valve B
Open the valve with pliers by turning it a quar
ter turn anti-clockwise.
Valve C
Open the valve with a hexagonal spanner by
turning anti-clockwise until it stops.
6. Put the cap back in place.
7. Disconnect the vacuum gauge and the vacuum pump.
8. Put the cap back in place on valve A.
9. Tighten all the caps with a torque wrench with a torque load of 20 to
25 N·m.
10. Check the tightness of the connections using a leak detector.
11. If the refrigeration pipes are more than 10 metres long, add the re
quired quantity of refrigerant fluid.
For more information, see
Installing the refrigeration link, page 46
7.5
Electrical connections
7.5.1
Recommendations
Warning
Only qualified professionals may carry out electrical connec
tions, always with the power off.
Earth the appliance before making any electrical connections.
Make the electrical connections on the appliance in accordance with the
requirements of the prevailing standards,
Fig.52
Stop valves
MW-M002499-2
A
B
C
1
1
1
2
4
Fig.53
Isolation valve caps
MW-M002295-2
1
8
3
5
4
6
2
4
6
5
A
B
C
7 Installation
7685645 - v04 - 07032018
AWHP-2 iMPI
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