Electrolux EPF18V1O8 Installation Manual page 14

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Step 3: Flare pipe ends
Proper flaring is essential to achieve
an airtight seal.
1. After removing burrs from cut pipe,
seal the ends with PVC tape to
prevent foreign materials from entering
the pipe.
2. Sheath the pipe with insulating
material.
3. Place flare nuts on both ends of pipe.
Make sure they are facing in the right
direction, because you can't put them
on or change their direction after
flaring. See Fig. 7.3
4. Remove PVC tape from ends of pipe
when ready to perform flaring work.
5. Clamp flare form on the end of the
pipe. The end of the pipe must
extend beyond the flare form.
Table 7.1: PIPING EXTENSION BEYOND FLARE FORM
Pipe gauge Tightening
Ø6.4
Ø9.5
Ø12.7
Ø15.9
Ø19.1
Ø22
Fig. 7.3
torque
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)
6. Place flaring tool onto the form.
7. Turn the handle of the flaring tool
clockwise until the pipe is fully flared.
Flare the pipe in accordance with the
dimensions shown in table 7.1.
8. Remove the flaring tool and flare
form, then inspect the end of the pipe
for cracks and even flaring.
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.
1. When connecting the flare nuts,
apply a thin coat of refrigeration oil to
the flared ends of the pipes.
2. Align the center of the two pipes that
you will connect.
Flare dimension (A)
(Unit: mm/Inch)
Max.
8.7/0.34
13.5/0.53
16.5/0.65
19.7/0.78
23.7/0.93
26.9/1.06
Fig. 7.4
Flare shape
Fig. 7.5