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SiBE28-804
Piping Diagrams
Appendix
259
Caution for flare
connections
Refer to below table for correct flare dimensions and tightening torques. Too high tightening
force may cause refrigerant leak because of flare cracking:
When connecting the flare nut, apply refrigerating machine oil to the flare (inside and
outside) and first screw the nut 3 or 4 turns by hand. Coat the indicated surfaces using ether
or ester oil:
After completing the installation, carry out an inspection of the piping connections by
pressure test using nitrogen.
Piping size
Flare nut
tightening torque
A dimensions for
processing flares (mm)
Flare shape
φ
6.4
14.2~17.2 N·m
(144~176 kgf·cm)
8.7~9.1
φ
9.5
32.7~39.9 N·m
(333~407 kgf·cm)
12.8~13.2
φ
12.7
49.5~60.3 N·m
(504~616 kgf·cm)
16.2~16.6
φ
15.9
61.8~75.4 N·m
(630~770 kgf·cm)
19.3~19.7
φ
19.1
97.2~118.6 N·m
(989.8~1208 kgf·cm)
23.6~24.0
R=0.4~0.8
45
° ±
2
90
°±
0.5
A
Summary of Contents for FHQ100BUV1B x 2
Page 13: ...SiBE28 804 2 ...
Page 19: ...Model Name and Power Supply SiBE28 804 8 General Information ...
Page 29: ...Specifications SiBE28 804 18 Specifications ...
Page 33: ...Wired Remote Controller SiBE28 804 22 Remote Controller 1 2 Installation ...
Page 34: ...SiBE28 804 Wired Remote Controller Remote Controller 23 ...
Page 93: ...Outdoor Unit Fan Speed Control SiBE28 804 82 Functional Description ...
Page 131: ...Test Run and Operation Data SiBE28 804 120 Test Operation ...
Page 251: ...Troubleshooting by Remote Controller Display LED Display SiBE28 804 240 Troubleshooting ...
Page 277: ...PCB Layout SiBE28 804 266 Appendix ...
Page 297: ...RZQ100 140C7 RZQS125 140C7V1B SiBE28 804 286 Removal Procedure ...
Page 311: ...SiBE28 804 iv Index ...