Piping extension beyond flare form
7. Remove the flaring tool and flare form, then inspect the end of the pipe for cracks and even flaring.
7.6.4 - Step 4: Connect pipes
Connect the copper pipes to the indoor unit first then
connect it to the outdoor unit. You should first connect
the low-pressure pipe, then the high-pressure pipe.
in senso orario fino a quando il tubo non è
1. When connecting the flare nuts, apply a thin coat
of refrigeration oil to the flared ends of the pipes.
2. Align the centre of the two pipes that you will
connect.
3. Tighten the flare nut as tightly as possible by
hand.
4. Using a spanner, grip the nut on the unit tubing.
5. While firmly gripping the nut, use a torque wrench
to tighten the flare nut according to the torque
(183-204 kgf.cm)
values in above table.
(255-265 kgf.cm)
Use both a spanner and a torque wrench when connecting or disconnecting pipes to/from the
(357-367 kgf.cm)
unit.
(459-480 kgf.cm)
•
Ensure to wrap insulation around the piping. Direct contact with the bare piping may result
(663-683 kgf.cm)
in burns or frostbite.
(765-867 kgf.cm)
•
Make sure the pipe is properly connected.
Carefully bend the tubing in the middle
according to the diagram below. DO NOT
bend the tubing more than 90° or more than
3 times.
Bend the pipe using your hands.
6. After connecting the copper pipes to the indoor
unit, wrap the power cable, signal cable and the
piping together with binding tape.
DO NOT intertwine signal cable with other wires.
EN - 20
Pipe
gauge
Ø 6.4
Ø 9.5
Ø 12.7
Ø 15.9
Ø 19.1
Ø 22
(A) (Unità: mm/pollici)
Tightening
Flare dimension (A)
torque
(Unit: mm/Inch)
Min.
18-20 N.m
8.4/0.33
(183-204 kgf.cm)
25-26 N.m
13.2/0.52
(255-265 kgf.cm)
35-36 N.m
16.2/0.64
(357-367 kgf.cm)
45-47 N.m
19.2/0.76
(459-480 kgf.cm)
65-67 N.m
23.2/0.91
(663-683 kgf.cm)
75-85N.m
26.4/1.04
(765-867 kgf.cm)
5. Dopo avere afferrato saldamente il dado,
Utilizzare sia una chiave di fissaggio che
Indoor unit tubing
tubi da/verso l'unità.
NOTA SUL RAGGIO DI PIEGATURA MINIMO
Piegare il tubo con il pollice
min-radius 10cm (3,9")
Dopo aver collegato i tubi di rame all'unità
Flare shape
Max .
90 ° ± 4
8.7/0.34
A
13.5/0.53
R0.4~0.8
16.5/0.65
19.7/0.78
23.7/0.93
26.9/1.06
Pipe
Flare nut
fili. D
. Infi
pe
Verifi