Haier MRV II Instruction Manual page 16

breaker's capacity should be 1.5 times of outdoor's max. running current
8.7 Indoor unit of the same outdoor system should use one power supply.
8.8 The recommended power cable is BV.BVR and V V cable ,do not use
YZW cable.
8.9 Signal wire must be double core shielded wire(1.5mm
layer should be connected continuously on indoor unit and be insulated
with adhesive tape, grounded at single point on outdoor unit.
Communication wire is forbidden as O type.
8.10 When power cable over 10mm
the cable terminal should be O type.
8.11 All the electric wires should not touch the refrigerant pipe directly,
because the insulating layer will get aging due to heat , then it will leak
and cause injury accident.
8.12 Power cable of 10HP outdoor unit should not be under 6mm
8.13 Power cable of indoor unit should not be under 2.5 mm
8.14The wire between wired controller and indoor unit is 0.5 mm
polar connection. For the salve units in group control, only connect the
terminal B, C.
8.15 Central control wire is 1.5 mm
of communication bus line between indoor and outdoor is no polarity.
2
is connected to the terminal block,
2
2-core shielded wire. Terminal P, Q
- 17 -
Part 1
2
) ,shielded
2
.
2
2
RVV,