4
93
To disconnect the couplings:
Step 1: Shut down the A/C unit and unplug the electrical power cord from the wall outlet.
Step 2: Wait five minutes for the line pressure between the indoor compressor unit and outdoor conden-
sing unit to equalize.
Step 3: Pull the male coupling handle up and toward the male coupling to the full back position.
Step 4: Retract the Release Sleeve on the female coupling to release the male coupling half from the female
half.
Step 5: To seal and protect from dust, reinstall the protective cap and plug.
REFRIGERANT PIPING CONNECTION (for TS models)
• Align the centre of the pipes.
• Sufficiently tighten the flare nut with fingers, and then tighten it with a spanner and torque wrench
as shown (see fig. 19 and fig. 20).
• Select the correct tightening torque (shown table 1) in order to prevent the pipes, connecting pieces
and nuts from being damaged.
Fig. 19 Fig. 20
Table 1: tightening torque
ELECTRICAL WORK
Electric safety regulations for the initial Installation
1. In case of an unsafe (electrical, mechanical and/or refrigerant etc) situation do not install the aircon-
ditioner.
2. Power voltage supplied should be in the range of 95%~105% of rated voltage on rating table.
G
ATTENTION
All refrigerant work and refrigerant piping should comply with the local legislation, standards
and codes and should only be done by qualified and skilled people.
Indoor unit tubing
Flare nut
Pipings
G
ATTENTION
• Excessive torque can break nut depending on installation conditions.
• All refrigerant work and refrigerant piping should comply with the local legislation, standards
and codes and should only be done by qualified and skilled engineers.
Outer
diam.
Tightening torque
(N.cm)
Additional tightening
torque (N.cm)
Ø 6.35
1500
(153kgf.cm)
1600
(163kgf.cm)
Ø 9.53
2500
(255kgf.cm)
2600
(265kgf.cm)
Ø 12.7
3500
(357kgf.cm).
3600
(367kgf.cm)
Ø 16.0
4500
(459kgf.cm).
4700
(479kgf.cm)