Daikin FCQ18PVJU Service Manual page 180

Precautions for New Refrigerant (R-410A)
1. Flaring tool
 Specifications
•
 Differences
•
Conventional flaring tools can be used when the work process is changed.
(change of work process)
Previously, a pipe extension margin of 0 to 0.5mm was provided for flaring. For R-410A air
conditioners, perform pipe flaring with a pipe extension margin of 1.0 to 1.5mm.
(For clutch type only)
Conventional tool with pipe extension margin adjustment can be used.
173
Flare gauge
Dimension A
Tube O.D.
Nominal size
Do
1/4 6.35
3/8 9.52
1/2 12.70
5/8 15.88
3/4 19.05
Change of dimension A
A
Class-2 (R-410A)
9.1
13.2
16.6
19.7
24.0
Dimension A
For class-1: R-407C
For class-2: R-410A
Precautions for New Refrigerant (R-410A)
SiUS28-902
Unit:mm
+0
-0.4
Class-1 (Conventional)
9.0
13.0
16.2
19.4
23.3