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INStAllAtION
1
1
Key
2
Torque wrench
3
Flare nut
Pipe Ø
mm
6,35
9,52
12,70
15,88
Pipe Ø
mm
6,35
9,52
12,70
15,88
— bring line ends with flare connection close to their cou-
pling on the unit
— manually rotate the flare nuts by 3 - 4 turns
— tighten the connections using a spanner and a counter
spanner
9
Use a torque wrench to tighten so as to prevent damage to
flare nuts and gas leaks.
9
Use equipment suitable for the system refrigerant.
9
Avoid using the refrigerant oil on the external part of the
flaring.
9
Avoid proximity to sources of ignition in continuous op-
eration (open flames, gas household appliances, electric
stoves, etc.).
9
As for circuit leak and pneumatic vacuum tests, refer to the
matching outdoor unit instruction booklet for the installer.
3
2
tightening torque
inches
Nm
1/4
18
3/8
42
1/2
55
5/8
60
A
A
inches
mm
1/4
17
3/8
22
1/2
26
5/8
29
2.11.2 Pipe insulation
Connection pipes must be thermally insulated to prevent dis-
persions of heat or formation of condensate.
1
2
3
1
Gas pipe
2
Condensation discharge
3
Liquid pipe
4
Heat insulation
5
Adhesive tape
insulate the liquid and gas pipes separately
— use insulating material that is thicker than 15 mm
— ensure that the insulating material adheres to the pipe
without gaps
— fix using adhesive tape
9
Do not tighten the adhesive tape excessively to prevent
damaging the insulation.
9
Avoid partial insulation of the pipes.
9
In case of use with outdoor temperature above 30 °C and
relative humidity above 80%, increase wall thickness up to
20 mm.
For gas pipes:
— ensure that the material used resists to temperatures up
to 120°C
For liquid pipes:
— ensure that the material used resists to temperatures up
to 70°C
12
5
4
4
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