Haier AB072XCEAA Service Manual - Page 49
Correct, Incorrect
View all Haier AB072XCEAA manuals
Add to My Manuals
Save this manual to your list of manuals |
Page 49 highlights
Chff^j\bZe Abj Chg]blbhg^j Allowable pipe length and drop These parameters differ according to the outdoor unit. See the instruction manual attached with the outdoor unit for details. Supplementary refrigerant The refrigerant supplementation shall be as specified in the installation instructions attached with the outdoor unit. The added refrigerant shall be R22. The adding procedure shall be aided with a measuring meter for a specified amount of supplemented refrigerant A Requirement Overfilling or underfilling of refrigerant will cause compressor fault. The amount of the added refrigerant shall be as specified in the instructions. Pipe expander Connection of refrigerant pipe Conduct flared connection work to connect all refrigerant pipes. Pipe cutting and expanding If the pipe is too long or the flare is damaged, it needs to be cut or expanded. 1. Pipe cutting 2. Removing burrs 3.Insertion nut 4. Pipe expansion Pipe expansion dimensions as follows: * Pipe diameter Size A (mm) " 6.35 mm (1/4 ) 0.8 ~ 1.5 " 9.52 mm (3/8 ) 1.0 ~ 1.8 " 12.7 mm (1/2 ) 1.2 ~ 2.0 " 15.88 mm (5/8 ) 1.4 ~ 2.2 Correct Incorrect Slope Damage Bur Partial Overlong The connection of indoor unit pipes must use double spanners. The installing torque shall be as given in the following table. Connecting pipe O.D.(mm) 6 . 3 5 9 . 5 2 1 2 . 7 0 1 5 . 8 8 Installing torque (N-m) 11.8 (1.2kgf-m) 24.5 (2.5kgf-m) 49.0 (5.0 kgf-m) 78.4 (8.0 kgf-m) Increased installing torque (N-m) 13.7 (1.4 kgf-m) 29.4 (3.0 kgf-m) 53.9 (5.5 kgf-m) 98.0 (10.0 kgf-m) Double-spanner operation z 47 z