Daikin ERQ, Service Manual

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Precautions for New Refrigerant (R-410A) ESIE09-05
242 Precautions for New Refrigerant (R-410A)
1. Flaring tool
„
Specifications
• Dimension A
„ Differences
•
Change of dimension A
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.
Flare gauge
Nominal size
1/4
3/8
1/2
5/8
3/4
Tube O.D.
Do
6.35
9.52
12.70
15.88
19.05
Class-2 (R-410A)
9.1
13.2
16.6
19.7
24.0
Class-1 (Conventional)
9.0
13.0
16.2
19.4
23.3
+
0
−
0.4
Unit:mm
A
Dimension A
For class-1: R-407C
For class-2: R-410A
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