.
ROUTING OF THE PIPES
- The pipe bending radius must be greater than or equal to 3.5
times the pipe diameter.
- Do not bend the pipes more than three times in a row and do
not make more than 12 bends in the total length of the line.
- If the suction pipe has a vertical section more than 8 meters in
length, it is MANDATORY to provide a trap every 3 meters when
the outdoor unit is installed above K 30 RCF .
EVACUATION OF REFRIGER-
ANT LINES AND INDOOR UNIT
- The R22 charge is contained only in the outdoor unit. The indoor
unit contains a small amount of neutral gas. That is why it is
necessary to evacuate the lines and indoor unit after installing
the lines.The outdoor unit has a valve used for evacuating the
system (large valve).
INSTALLATION PROCEDURE
- The outdoor unit a valve (large valve) used for evacuating the
complete system.
1 Connect the pipes of the line to the outdoor unit and indoor unit.
- Cover the surface with refrigerant oil to tighten the fittings
correctly.
- Always use a counterwrench to tighten the valves .
- The table below shows the tightening torques.
A "GAS" line
B "LIQUID" line
H max.
A
B
* WITHOUT trap
e
h
t
f
o
Ø
s
e
p
i
p
e
u
q
r
o
T
e
p
i
p
"
4
/
1
e
p
i
p
"
8
/
3
e
p
i
p
"
2
/
1
e
p
i
p
"
8
/
5
e
p
i
p
"
4
/
3
e
p
i
p
"
8
/
7
m
N
0
2
-
5
1
m
N
5
3
-
0
3
m
N
4
5
-
0
5
m
N
5
7
-
0
7
m
N
5
8
-
0
8
m
N
5
9
-
0
9
2 Connect the vacuum pump to the flare coupling of the outdoor
unit fitted with the large service valve (large coupling).
3 Turn on the vacuum pump and check that the dial pointer drops
to -0.1 MPa (-76 cm Hg).
The pump should remain in operation for at least 15 minutes.
4 Before removing the vacuum pump, check that the vacuum dial
remains stable for five minutes.
5 Disconnect the vacuum pump and reclose the service valve.
6 Remove the caps from the GAS and LIQUID valves and open
them with a socket wrench to release the R22 contained in the
outdoor unit.
7 It may be necessary to adjust the charge according to the
length of the line and the processing unit (see pages 5 and 6 to
calculate the charge to be added). Put the caps back.
8 Check the lines for leaks using an electronic leak tester or a
sponge soaked with sudsy water.
CHARGE ADJUSTMENT
- This operation must only be carried out by qualified personnel
in accordance with the rules of good workmanship in
refrigeration. The extra charge is added through the service
valve of the outdoor unit flare coupling (large coupling).
FINAL TASKS
- Check that the valve caps are correctly tightened.
- Attach the cables and lines to the wall with clamps if necessary.
- The additional capillary (identified by a red tag) should only be
used above 8 meters.
- Below 8 meters, it can adversely affect the heating power (winter
mode) and compressor oil temperature and should not be left
in service. Pinch it as shown on the red tag.
- Capillary before pinching:
(loop made in the factory)
- Capillary after pinching:
- Run the air conditioner in presence of the user and explain all the
functions.
- Show the user how to remove, clean and reinstall the filters.
K
1 2
K30RCF / GC30RCFA
K30RCF / GC30RCC
K45RCF / GC45RCFX
10
20
50*
H. Max (m)
K INST. MENU
