GB-18
The flare must be free from burrs and
imperfections. The walls of the flare must
be of identical length.
Lubricate the end of the pipe and the
thread of the “FLARE” connection with
non-freezing oil. Tighten the union by hand
for a few turns and then tighten each
connection with two wrenches, to the
torque shown in the table.
CONNECTING THE PIPE TO THE UNIT
If the torque setting is insufficient,
refrigerant fluid will leak from the
connection.
Once you have completed all the
connections, check for possible leaks
using a leak detector specifically designed
for HFC refrigerants. Clad the pipes and
taps with anti-condensation insulating
material and fix with adhesive tape, without
compressing the insulation too much. Any
cuts or tears in the insulating material must
be repaired. The pipes and electrical
cables connecting the indoor unit with the
outdoor unit must be fixed to the wall with
suitable ducts.
L
L
Adjustable wrench or
torque wrench
Indoor side
Outdoor side
Pipe diameter
Torque
setting
mm
inches
Nm
Pipe
Pipe insulation
Adhesive tape
6.35
1/4”
18
9.52
3/8”
42
12.70
1/2”
55
15.87
5/8”
65
40DQV_GB_install 5-07-2005 11:44 Pagina 18
