52
Refrigerant pipe installation
Connecting the flared pipes
X
f
Check if the flaring is properly done according to the standard size .
X
f
Align the center of the piping and tighten the flare nut with your hands . Then, tighten the flare nut with torque
wrench in a direction of the arrow indicated in below illustration .
X
f
Make sure to use ester oil to coat the flare connection section .
Flare connection
section
Flare nut
Pipe
Monkey
wrench
Torque wrench
Outer diameter (D, mm) Connection torque (N·m) Flare dimension (L, mm)
Flare shape (mm)
Ø 6 .35
14~18
8 .7~9 .1
90° ±2°
45° ±2°
L
D
R 0 .4~0 .8
Ø 9 .52
34~42
12 .8~13 .2
Ø 12 .70
49~61
16 .2~16 .6
Ø 15 .88
68~82
19 .3~19 .7
Ø 19 .05
100~120
23 .6~24 .0
• Blowing Nitrogen gas should be done when welding the pipe .
• Make sure to use the provided flare nut .
• Make sure that there are no cracks or twisted part when you need to bend the pipe .
• Do not fasten the flare nut with excessive strength .
• R-410A is a high pressure refrigerant and there is a risk of refrigerant leakage if the flare connection is not
coated with ester oil . Therefore, apply ester oil to coat the flare connection area .
CAUTION
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Summary of Contents for AM080JXVHGH/EU
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