Connecting The Refrigerant Piping For The S 39Xx Models - Qlima S(C) 3925 Manuel D'installation

≥ ø85 mm
G
< 20 < 20 ≥ 20 ≥ 20
cm cm cm cm
G
ATTENTION
Disconnecting the refrigerant piping of an air conditioner has to be done according the
applicable national statutory provisions. Connecting the refrigerant piping may only be
performed by an authorised technician.
Disconnect the fittings:
Step 1: Turn off the air conditioner and pull the plug out of the socket.
Step 2: Wait five minutes until the pressure in the piping between the indoor and outdoor unit is compen-
sated.
Step 3: Push the lever of the male fitting up, and as far back as possible.
Step 4: Pull the unlock bushing on the female fitting loose to disconnect the fittings.
Step 5: Put the cover and the plug back in position to protect the unit against dust.
8.2

Connecting the refrigerant piping for the S 39xx models.

a. Provide the pipe ends with a flare with swivel or similar screw connection.
b. Inner part: Secure the swivel nut manually to the piping of the indoor unit and secure the swivel nut
with an open-end wrench and a torque wrench as shown in Fig. 13.
c. Outer part: Secure the swivel nut manually to the fittings on the valves of the outdoor unit and
secure the swivel nut with an open-end wrench and a torque wrench as shown in Fig. 13.
Piping from
indoor unit
d. Apply the correct torques (see table 1) to prevent damaging the piping, fittings and nuts.
4
54
The last part of 20 cm of the refrigerant piping, at the end
of the connection, may not be bended. If this part is bend
leakage can occur; this is not covered by the warranty.
Picture 12
Swivel nut
Piping
Picture 13