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Free match split type air conditioner / Installation Manual
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.
Flare form
Pipe
Fig. 7.4
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.
Table 7.1: Piping extension beyond flare form
Pipe
gauge
Tightening torque
Flare dimension (A)
(Unit: mm/Inch)
Flare shape
Min.
Max.
Ø 6.4
14.2-17.2 N.m
(144-176 kgf.cm)
8.3/0.3
8.3/0.3
45 °±2
90°
±4
A
R0.4~0. 8
Fig. 7.5
Ø 9.5
32.7-39.9 N.m
(333-407 kgf.cm)
12.4/0.48
12.4/0.48
Ø 12.7
49.5-60.3 N.m
(504-616 kgf.cm)
15.4/0.6
15.8/0.6
Ø 15.9
61.8-75.4 N.m
(630-770 kgf.cm)
18.6/0.7
19/0.74
Ø 19.1
97.2-118.6 N.m
(990-1210 kgf.cm)
22.9/0.9
23.3/0.91
Ø 22
109.5-133.7 N.m
(1117-1364 kgf.cm)
27/1.06
27.3/1.07
8. Remove the flaring tool and flare form, then inspect the end of the pipe for cracks and even flaring.
7
Refrigerant piping connection