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English
11
Table 1
CAUTION
•
Over-tightening the flare nut may break it and/or cause the refrigerant to leak.
Not recommendable but in case of emergency
You must use a torque wrench but if you are obliged to install the unit without a torque wrench, you may
follow the installation method mentioned below.
After the work is finished, make sure to check that there is no gas leak.
When you keep on tightening the flare nut with a spanner, there is a point where the tightening torque
suddenly increases. From that position, further tighten the flare nut the angle shown below:
Unless followed the tightening instruction (it is loose tightening), it will lead to the refrigerant leakage (slow
leak) and the device malfunction (it does not sufficiently cool or heat).
CAUTION
For local insulation, be sure to insulate local piping all the way into the pipe connections inside the
machine.
Exposed piping may cause condensation or burns on contact.
•
Make absolutely sure to execute heat insulation works on the pipe-connecting section after checking gas
leakage by thoroughly studying the following figure and using the attached heat insulating materials for
fitting (4) and (5). (Fasten both ends with the clamps (8).)
(Refer to Fig. 8)
•
Wrap the middle sealing material (7) around the insulation for fitting (4) and (5) for the joint (flare nut part).
•
Make sure that the joint of the insulation for fitting (4) and (5) for the joint on the liquid piping and gas piping
side faces upward.
Pipe size
Tightening torque (N·m)
Flare dimensions
A (mm)
Flare
φ
9.5 (3/8”)
32.7 – 39.9
12.8 – 13.2
φ
15.9 (5/8”)
61.8 – 75.4
19.3 – 19.7
Pipe size
Further tightening angle
Recommended arm length of tool
φ
m
m
0
0
2
.
x
o
r
p
p
A
s
e
e
r
g
e
d
0
9
o
t
0
6
)
”
8
/
3
(
5
.
9
φ
m
m
0
0
3
.
x
o
r
p
p
A
s
e
e
r
g
e
d
0
6
o
t
0
3
)
”
8
/
5
(
9
.
5
1
A
45˚
±2˚
R0.4-0.8
90˚
±
2˚
01_EN_3PN06583-10W.fm Page 10
Thursday, March 24, 2011 9:03 AM
Summary of Contents for FBQ20DAVMK
Page 30: ...MEMO...
Page 31: ...FBQ20DAVMK FBQ24DAVMK FBQ36DAVMK FBQ45DAVMK FBQ48DAVMK...
Page 32: ...2 1 1...
Page 33: ...3 1 1 2 2 3 3 4 4 R410A SUNISO R410A R410A 33 3 3 R407C 40 4 0 R410A R410A...
Page 35: ...5 2 2 BRC1C61 BRC4C62 13 1 1...
Page 36: ...6 3 2 1 3 80 10 1 2 1 1...
Page 39: ...9 5 1 11 9 11 5 2 3 4 4 11 9 5...
Page 40: ...10 6 C 120 RH 80 C 30 20 R410A R410A 1 6 1 4 3 7 1 6 7...
Page 42: ...12 4 4 8 8 7 7 8 9...
Page 44: ...14 2 3 4 100 1 100 1 2 1 5 1...
Page 45: ...15 6 2 1 8 25 50 11 3 3 6 1 4 3 3...
Page 46: ...16 9 230 ASSY 10 1 10 1 3...
Page 47: ...17 2 50 X2M...
Page 48: ...18 3 140 125 10 15 8 X1M 8 X2M 4 10...
Page 49: ...19 12 5 8 13 8 12 13 0 96 0 80 1 44 1 18 1 44 1 18...
Page 50: ...20 2 2 2 36 24 20 4 2 5 48 45 4 2 1 25 0 75 500 15 2 1 1 16 1 10 14 1 2 2 16 1 10 230 60...
Page 51: ...21 9 1 2 10 P1 P2 2 2 1 2 2 1 12 1 1 2 2 16 16 10 2 P 1 P 2 P 1 P 1 2 11 12...
Page 52: ...22 S 2 13 M 9 3 P1 P2 2 4 11 11 12 13 1 1 2 2 14...
Page 53: ...23 1 1 2 2 1 2 L H 3 7 11 21 03 3 21 11 7 01 02 03 02 21 4 02 3 3...
Page 55: ...25 12 00 00 10 4 1 12 6 6 88 88 90 88 90...
Page 58: ...28 U4 UF UF U5 U8 UA UC UJ 5...
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