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Table 6: Moments of Torque for Tightening Screws
Diameter of Pipe (mm)
4. Refrigerant pipe bends shall be of suitable radius to prevent cracking or crimping. All bends shall
be made using a pipe bender to bend the pipe.
5.
Wrap exposed refrigerant pipe and joints in thermal insulation.
CAUTION
•
When connecting the indoor unit and the refrigerant pipe, never apply excessive force to any joints;
otherwise the capillary pipe or other pipe may crack resulting in leakage.
•
The refrigerant pipe should be securely supported by brackets.
3.13. Insulation for the Refrigerant Pipe
1.
The refrigerant pipe should be insulated to prevent condensation.
2.
The joints of the indoor unit should be wrapped with the insulating material and ensure there is no
gap between the insulation and the indoor unit, as shown in Figure 19.
13 23 50
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lennoxaus.com.au
φ6.35
φ9.52
φ12.0
φ15.9
Figure 18: Tightening the Joint
LENNOX MULTI SPLIT INVERTER
Slim Line Ducted Indoor Unit
Moment of Torque (Nm)
15-30
35-40
45-50
60-65
19
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