6.6.7
Opening the valves
1. Remove the cap from the refrigerant fluid stop 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 stop 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 leak-tightness of the connections using a leak detector.
11. If the refrigeration pipes are more than 10 metres long, add the
required quantity of refrigerant fluid.
For more information, see
Adding the necessary quantity of refrigerant fluid, page 31
6.7
Electrical connections
6.7.1
Recommendations
Warning
Only qualified professionals may carry out electrical
connections, 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,
Make the electrical connections on the appliance in accordance with the
information given in the electrical schematics delivered with the
appliance,
Make the electrical connections on the appliance in accordance with the
recommendations of these instructions.
Important
Earthing must comply with the prevailing installation standards.
Caution
The installation must be fitted with a main switch.
Three phase models must always be fitted with neutral.
Caution
Power the appliance via a circuit that includes an omnipolar switch
with contact opening distance of 3 mm or more.
Single phase models: 230 V (+6%/-10%) 50 Hz
Three-phase models: 400 V (+6%/-10%) 50 Hz
When making electrical connections to the mains, respect the following
polarities.
Fig.31
MW-M002295-2
1
8
3
5
4
6
2
4
6
5
A
B
C
6 Installation
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