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Refrigerant piping
4 rEfrIGErANT PIPING
4.1 PIPING CONNECTION
4.1.1 Piping Position
(Gas pipe)
95
(Liquid pipe)
160
Gas pipe connection
(mm)
5 DrAIN PIPING
5.1 GENErAL INfOrmATION
iNCOrrECT
incorrect: Upward Slope
Liquid pipe connection
φ30
incorrect: Rising Part
9
PmmL0223A rev.0 - 05/2012 - P5415035
4.1.2 Size of piping connection
Piping size
(mm)
RCi-1.0/1.5
RCi-2.0
RCi-2.5-6.0
Thickness of Copper Pipes
Ø (in)
1/4
3/8
1/2
5/8
Flare Pipe Dimensions
Flare Nut Dimensions
COrrECT
Drain piping of unit side
Liquid piping
Gas piping
Ø 12.70 (1/2)
Ø 6.35 (1/4)
Ø 15.88 (5/8)
Ø 9.52 (3/8)
Ø (mm)
Thickness (mm)
φ30
6.35
9.53
12.70
15.88
Ø (in)
Ø (mm)
1/4
6.35
3/8
9.52
1/2
12.70
5/8
15.88
Nominal
Nominal dia-
diameter
meter (in)
(mm)
1/4
6.35
3/8
9.53
1/2
12.70
5/8
15.88
min. 100mm
(higher as possible)
1/25 to 1/100
Down-Slope
Vinyl chloride pipe (VP25)
This drain piping
shall be separating
from others pipes
Common drain piping (VP30)
(Down slope from rising part)
mm (in)
0.80
0.80
0.80
1.00
A +0/-0.4
(mm)
9.1
13.2
16.6
19.7
B (mm)
17
22
26
29
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