84
Monobloc Outdoor Unit Installation Manual
To reduce waste, the refrigerant and the oil must be transferred in accordance with applicable regulations,
using methods that limit refrigerant leaks and pressure drops and with materials that are suitable for the
products.
Any detected leaks must be repaired immediately. The compressor oil that is recovered during
maintenance contains refrigerant and must be treated accordingly.
Refrigerant under pressure must not be purged to the open air.
If a refrigerant circuit is opened, plug all openings, if the operation takes up to one day, or for longer
periods charge the circuit with nitrogen to prevent penetration of atmospheric humidity and resulting
corrosion.
NOTE:
Any deviation or non-observation of these maintenance criteria will render the guarantee conditions for
the HVAC unit null and void, and the manufacturer will no longer be held responsible.
Tightening torques for the main electrical connections:
Component
Designation in the unit
Value (N.m)
Disconnecting switch
L1 /L2 /L3/N/PE
2
Terminal Bloc X1
L1 /L2 /L3/N/PE
1.5 to 1.8
Terminal Bloc X3
0.6 to 0.8
Contactor (Power and control)
1.5
Thermal relay
2.5
Transformer
1.7
Connections on compressor
Screw on phases (Only for 21kW)
2.5
Compressor variable speed drive
6 M10 nuts
L1 /L2 /L3/N
1.2
2 M10 or M8 nuts PE 1,2
9 M8 nuts (with fuses and busbars)
1/2/3
1.2
Tightening torques for the main bolts and screws:
Component
Utilisation
Value (N.m)
M8 H Wood screw
Chassis fixing to shipping pallet
13
M8 H nut
Compressor fixing to base pan BPHE & Receiver fixing
15
Taping screw D=4,2mm
Sheet metal parts, Plastic grid & electrical components
4.2
Taping screw D=3mm
Deflector assembly on front panel
2
M6 Taping screw
Fan sub assembly & Chassis assembly on feet
7
M6 Taping screw
Fan sub assembly & Chassis assembly on feet
7
M8 Screw
Water pump assembly on the partition panel
15
D1” & D1”1/4” Nut
Water pump inlet and outlet pipe connections
70
D1/2” Nut
Nut assembly on inlet water pump pipe
20
M6 H nut
Fan propellers assembly on fan motor
7
