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The maximum wiring length between the outdoor machine and the furthest valve box or Cooling-only indoor unit
is 1000m,the valve box and the indoor machine is 90m. The maximum branch number is 16.
(6) Tighten terminal screws with proper screw driver. Screw driver of small dimension will damage the screw head
and fail to tighten properly.
(7) If terminal screws are tightened excessively, they may be damaged. Refer to the following table for tightening
torques of terminal screws:
(8) Power line is forbidden to the communication terminal block because it will damage the circuit control board.
(9) Wiring of communication lines shall be within the following scope. Exceeding the limit will possibly lead to
abnormal communication.
Dimension of terminal screw
Tightening torque (N.m)
M3.5 (terminal block for communication line)
0.80~0.96
M4 (terminal block for power line)
1.18~1.44
M4 (terminal block for ground wire)
1.52~1.86
Summary of Contents for MRV 5-RC AB052MAERA
Page 1: ...MRV 5 RC Service Manual SYJS 03 2019REV A Edition 2019 03 ...
Page 3: ......
Page 55: ...52 AV08 10 12 14IMVURA 4 Center of gravity x X 347 9587 y 471 5454 z 725 6683 y z ...
Page 56: ...53 AV16 18 20 22IMVURA x X 650 5962 y 380 7255 z 706 5342 y z ...
Page 106: ...103 2 Dimension 4 19 200 60 25 25 25 249 108 232 84 69 388 73 82 65 103 177 4 44 4 35 277 ...
Page 116: ...113 2 Preparation before installation ...
Page 162: ...159 One by one valve box PCB code 0151800186A 2 Valve box PCB photo and dip switch setting ...
Page 165: ...162 One by four valve box PCB code 0151800466 ...