Flare Connection; Laying - York R-410A Technical & Service Manual

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Min. inserting depth and clearance between connectors.

4.6.3 Flare Connection

1) Before flaring, the auxiliary pipe must be annealed.
2) Use incision machine.
3) Dimension:
Shape
4) Smear oil at flaring part.
♦ Be careful to get rid of burr.
♦ Use two torques.
♦ Use proper torque to fasten nut.
Dimension
1/4"(Φ6.4)
3/8"(Φ9.5)
1/2"(Φ12.7)
5/8"(Φ15.9)
3/4"(Φ19.0)

4.6.4 Laying

1) Laying the refrigerant pipes
♦ Mark the system clearly in every distance to prevent wrong connection.
♦ The plane where the two branches locate should be parallel to the horizontal plane, or the
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Out .Diameter. (D)
5＜D＜8
8＜D＜12
11＜D＜16
16＜D＜25
25＜D＜35
35＜D＜45
Diameter
3/8"
1/2"
5/8"
3/4"
(kgf ·m)
144―176
133―407
504―616
630―770
990―1210
- 258 -
Installation
Unit: mm
Min. Inserting depth (B)
6
7
8
10
12
14
O.D.
9.53
12.7
15.88
19.05
Torque
(N·cm)
1440―1720
3270―3990
4950―6030
6180―7540
9270―11860
Clearance (A~D)
0.050~0.21
0.050~0.27
0.050~0.35
A
0.05―0.21
0.05―0.27