Connecting And Disconnecting The Coolant Pipes For The Sc41Xx & Sc5Xxx; Connecting The Coolant Pipes For The S41Xx & S5Xxx Models - Qlima S5025 Manuel D'installation

Wall
Outdoor
Indoor
≥5°
Figure 10
8. CONNECTING THE COOLANT PIPES
8.1 Connecting and disconnecting the coolant pipes for the SC41xx & SC5xxx
models.
G
TAKE CARE
Connecting the coolant pipes of an air conditioner must be carried out in accordance with the
applicable national regulations and laws. Connecting the coolant pipes may only be carried out
by an authorised fitter.
G
TAKE CARE
The piping package, coupled to the interior unit, is heavy. Never let the piping package hang
freely from the interior unit. Support the whole piping package during installation of the interior
unit. The weight of the piping package can cause the piping on the interior unit to bend and
even break. Damage to the piping on the interior unit due to unprofessional installation and is
not covered by the guarantee.
G
TAKE CARE
For your safety, always wear safety eye wear and work gloves when connecting the pipes. The
piping is coupled the interior unit at the factory. Read through the "quick installation guide" to
understand how the piping and power cable must be connected to the exterior unit.
Figure 11
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≥ ø85 mm
G
The last 20 cm of the refrigerant pipe, close to the
connector must be kept straight. Bending can cause
leakage and is not covered by the warranty.
< 20 < 20 ≥ 20 ≥ 20
cm cm cm cm
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.
To disconnect the couplings:
Step 1: Shut down the A/C unit and unplug the electrical power cord from the wall outlet.
Step 2: W ait five minutes for the line pressure between the indoor compressor unit and outdoor condensing
unit to equalize.
Step 3: Pull the male coupling handle up and toward the male coupling to the full back position.
Step 4: R etract 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.
8.2 Connecting the coolant pipes for the S41xx & S5xxx models
a. Fit a gland nut or suchlike to the piping and make a so-called "flare" at the end of the piping.
b. I nterior unit: Tighten the gland nut by hand to the piping on the interior unit and then tighten it
with a spanner and torque wrench as shown in fig. 13.
c. E xterior unit: Tighten the gland nut by hand to the connections on the valves on the exterior unit
and then tighten it with a spanner and torque wrench as shown in fig. 13.
Flare nut
Indoor unit tubing Pipings
Figure 13
d. S elect the correct tightening torque (shown table 1) in order to prevent the pipes, connecting pieces
and nuts from being damaged.
Figure 12
Fig.17
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