![background image](http://html1.mh-extra.com/html/daikin/fbq20eavak/fbq20eavak_installation-manual_4704662079.webp)
English
18
〈
Precautions when tightening flare nuts
〉
•
Be sure to remove the flare nuts using two spanners. Then after the piping connection, tighten them using
a spanner and torque wrench.
•
Please refer to the Table 1 for the dimensions for processing flares.
•
When connecting the flare nut, coat the flare inner surface with refrigerating machine oil and initially tighten
by hand 3 or 4 turns before tightening firmly.
•
Please refer to the Table 1 for the tightening torque. (Too much tightening will end up in splitting of the flare.)
•
After all the piping has been connected, use nitrogen to perform a refrigerant leak check.
Table 1
Pipe size
Tightening torque
A dimensions for
processing flares (mm)
Flare shape
φ
9.5
32.7 – 39.9 N·m
12.8 – 13.2
φ
15.9
61.8 – 75.4 N·m
19.3 – 19.7
Inter unit piping for the
Indoor and outdoor units
Compressor
Perform treatment such as caulking
Insulation
(field supply)
Insulation
(field supply)
Wind heat insulation material around
the piping section so it is not exposed
and then cover the insulation material
with vinyl tape.
Fig. 15
Connecting piping
connecting section
Flare nut
Flare nut
Spanner
Union tube joint
Torque
wrench
Coat the flare inner
surface only with
ether oil or ester oil.
A
45˚
2˚
R0.4-0.8
90˚
2˚
01_EN_3P281953-1B.fm Page 18 Tu esday, January 25, 2011 3:35 PM
Summary of Contents for FBQ20EAVAK
Page 30: ...MEMO...
Page 31: ...FBQ20EAVAK FBQ24EAVAK FBQ36EAVAK FBQ45EAVAK FBQ48EAVAK FBQ48EAVMK...
Page 32: ......
Page 33: ...R410A SUNISO R410A R410A R407C R410A R410A...
Page 34: ...R410A M5 16 24 20 48 45 36 M4 8...
Page 35: ...BRC1E62 BRC1D61 BRC1C61 BRC4C62 BRC4C64 FBQ48EAVMK BRC4C62...
Page 36: ......
Page 37: ...A 1 A 2...
Page 38: ...M10 A 1 A 2 B D B C D 24 20 48 45 36...
Page 39: ......
Page 40: ...C RH C R410A R410A...
Page 41: ...A...
Page 42: ......
Page 43: ...BCuP 2 JIS Z 3264 B Cu93P 710 795 ISO 3677...
Page 44: ......
Page 45: ......
Page 46: ...ASSY...
Page 47: ...X2M...
Page 48: ...X1M X2M...
Page 49: ......
Page 50: ...36 24 20 48 45 FBQ48EAVMK...
Page 51: ...P1 P2 2 P 1 P 2 P 1 P...
Page 52: ...S M P1 P2...
Page 53: ...L H...
Page 54: ...Daikin LCD...
Page 55: ......
Page 56: ...A1 A3 A6 A8 AF AH AJ C1 C4 C6 C9 CC CJ E0 E1...
Page 58: ...U4 UF UF U5 U8 UA UC UJ...
Page 59: ......
Page 91: ...English 30 MEMO...
Page 92: ...31 English MEMO...
Page 94: ...2 1...
Page 95: ...3 1 1 1 2 3 4 5 R410A SUNISO R410A R410A 33 3 3 R407C 40 4 0 R410A R410A...
Page 96: ...4 2 1 2 48 2 2 1 1 2 1 2 3 1 3 3 71 PP 2 1...
Page 97: ...5 3 1 4 6 3 2 5 5 4 1 1 1 5 1 5...
Page 103: ...11 4 2 1 3 1 B 1 2 40 D C 2 2 1 3 1 25 3 A 4 4 A D 5 4 4 4 1 3 2...
Page 104: ...12 100 M12 6 20 6 1 6 R410A BCuP 11 8 6...
Page 105: ...13 2 6 3 6 5 6 6 6 5 6 4 6 Suniso R407C R410A R410A 755 0 1...
Page 107: ...15 10 7 11 16 10 11...
Page 108: ...16 12 13 6 4 1 2 1 2 14 13 12 16 5 13 5 27 5 22 5...
Page 109: ...17 15 15 75 C 30 20 80 C 30 C 120 13 9 11 5 14...
Page 110: ...18 1 4 3 1 1 15 9 5 39 9 32 7 13 2 12 8 15 9 75 4 61 8 19 7 19 3...
Page 111: ...19 Daikin 0 02 7 4 0 9 5 90 60 200 15 9 60 30 300...
Page 113: ...21 0 011 0 09 1 2 3 R410A 4 8 R410A RZQ 20 24 RZQ 36 45 RZ Q R 48...
Page 114: ...22 9 230 500...
Page 115: ...V L N Y...
Page 116: ...24 M4 1 8 1 2 M5 3 0 2 0 M4 1 9 1 4 M5 2 9 2 4...
Page 117: ...Y V RZ Q R V Y 20 24 36 45 45 48 MCA A RZR48MUYMK...
Page 118: ......
Page 119: ...27 11 1 01 2 88 3 4 10 03 04 05 6 10 8 10 8 8 01 02 26 16 0 1...
Page 122: ...30...
Page 123: ......