Haier 3U19FS1ERA Service Manual - Page 71
Wiring methods
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>_]]VbTZR\ _^UZdZ_^Vb Pipe expansion dimensions as follows: Pipe diameter ? 6.35 mm (1/4") 9.52 mm (3/8") 12.7 mm (1/2") Size A (mm) 0.8 ~ 1.5 1.0 ~ 1.8 1.2 ~ 2.0 Correct Incorrect Slope Damage Bur Partial Overlong A 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) ? 6.35 ? 9.52 ? 12.70 Installing torque (N-m) 11.8 (1.2kgf-m) 24.5 (2.5kgf-m) 49.0 (5.0 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) Pipe expander Double-spanner operation 4.Trial operation The person who has completed this installation shall be requested to conduct a test operation for check: Is the temperature adjuster working normally? Does the location for installation conform to requirements? Winding up with Protective Plastic Tape.The connection pipes,drain pipe, and the connection wires shall be wound up with PVC tape. NOTE! The connection pipes shall also be wound up with insulating material to preserve the temperature. The airing direction shall be from bottom to top. Wiring methods: 1 Wiring method of ring terminal For connecting line which end is a ring,its wiring method as shown in the right figure: remove wiring screw and pass it through the end ring of connecting line,then connect it to the terminal block and tighten screw. -70-