Haier YCZ-A004 Operation & Installation Manual page 24

Installation
Wiring standards
All of the communication cables between each module and terminal module to the central controller are double core shielded twisted-
Installation condition
Don't install in the place where it is easy to produce noise.
It will be unavailable if it is installed near to the computer, auto-door, elevator, or other equipments what can produce noise.
Don't install in the place where it is wetor shake violent.
It will cause failure if you install in the place where is very wet or shake violent.
Don't install in the place where it is by direct sunlight or near to the heat.
It will cause failure if you install in the place by direct sunlight or near to the heat.
There are two pothooks on each side of the rack. There are four recesses corresponding with the pothooks on the back of the central
controller.
The length of signal line
<100
100<x<200
200<x<300
300<x<400
400<x<500
Installation diagram of the side of the rack
Wiring dimension
2
0.3 mm ×2
2
0.5mm ×2
2
0.75mm ×2
2
1.25×2mm ×2
2
2×2mm ×2