4
Pipe
Flare Nut
喇叭口尺寸
Connection minimum thickness (mm)
New Refrigerant Piping Thickness (mm)
Vacuum
Drying
Refrigerant
Change
Manifold Valve
●
■
‧
No interchangeability is available due to higher pressure
when compared with R22.
R410A connection diameter
：
1/2 UNF
R407C connection diameter
：
7/16 UNF
◎＜
Do not use current ones (R22) to the different
refrigerant
＞
; If used, mineral oil will flow into the cycle
and cause sludge, resulting in clogging or compressor
failure.
Vacuum Pumping; Vacuum
Holding;
Refrigerant Charging and
Check of Pressures
Charging Hose
●
■
Charging
Cylinder
Prohibited
‧
Please use the weight scale.
Refrigerant Charging
Weight Scale
○
○
Measuring Instrument for
Refrigerant Charging
Refrigerant Gas
Leakage
Detector
※●
■
‧
The current gas leakage detector(R22) is not applicable
due to different detecting method.
Gas Leakage Check
3.3 The piping and connection parts, use the following R410A. Flare nut and the front part of pipe flare size also changes,
according to the following specifications used.
Unit
：
mm
Piping Diameter
d
Dimension A
R407C
、
R22
R410A
6.35
9.0
9.1
9.53
13.0
13.2
12.7
16.2
16.6
15.88
19.4
19.7
19.05
23.3
※
Can not be processed
(1/2H material)
※
Please use the attached flare connecting pipe.
●Pipe thickness selected
With the design pressure changes, the pipe thickness and material should also be changed.
Pipe Size
Existent Type
New Refrigerant
R22
R407C
R410A
Thickness
Material
Thickness
Material
Thickness
Material
Φ6.35
0.6
O
0.8
O
0.8
O
Φ9.53
0.8
O
0.8
O
0.8
O
Φ12.7
0.8
O
0.8
O
0.8
O
Φ15.88
1.0
O
1.0
O
1.0
O
Φ19.05
1.0
O
1.0
O
1.0
1/2H
Φ22.2
1.2
O
1.15
O
1.0
1/2H
Φ25.4
1.2
O
1.0
1/2H
1.0
1/2H
Φ28.6
1.4
O
1.0
1/2H
1.0
1/2H
●
Department of the connection selected
With the design pressure changes, the connection pipe (elbow etc.) thickness are also part the changes. When use 1/2H
material, the bending and flaring can not be processed, so please follow the rules below the minimum thickness choose the
appropriate connecting pipe. Please note that the size of flare nut is also part change.
Pipe Size
R407C
、
R22
R410A
Pipe Size
R407C
、
R22
R410A
Φ6.35
0.5
0.5
Φ22.2
0.9
0.9
Φ9.53
0.6
0.6
Φ25.4
0.95
0.95
Φ12.7
0.7
0.7
Φ28.6
1.0
1.0
Φ15.88
0.8
0.8
Φ31.75
1.05
1.1
Φ19.05
0.8
0.8
Φ38.1
1.25
1.35
Pipe Size
Flare Nut Size B(mm)
Pipe Size
Flare Nut Size B(mm)
R407C
、
R22
R410A
R407C
、
R22
R410A
Φ6.35
17
17
Φ15.88
27
29
Φ9.53
22
22
Φ19.05
36
36
Φ12.7
24
26
Pipe Flare Size
＋
0
－
0.4
Содержание RAM-200FPS
Страница 24: ...24 66MP1306 Printed in Philippines ...
