Mini Amazon III Series
128
Leakage protector
Manual switch
Branch box
Indoor unit
1
9
2
10
3
11
4
12
5
13
6
14
7
15
8
16
Single-phase 220~ 50/60Hz
The power supply should
-8.2.
Figure 3-8.2: Outdoor unit
1-phase power supply terminals
Figure 3-8.1: Indoor unit power supply wiring
Notes for installers
The power supply should be connected to the outdoor unit power supply terminals as shown in Figure 3-8.2.
Figure 3-8.2: Outdoor unit 1-phase power supply terminals
8.3 Communication Wiring
Communication wiring design and installation should adhere to the following requirements:
0.75mm
2
three-core shielded cable should be used for communication wiring. Using other types of cable can lead
to interference and malfunction.
Indoor communication wiring:
Th
e P
Q E communication wires should be connected one unit after another in a daisy chain from the outdoor
unit to the final indoor unit. At the final indoor unit, a 120Ω resistor should be connected between the P and Q
terminals. After the final indoor unit, the communication wiring should NOT be continued back to the outdoor
unit – that is, do not attempt to form a closed loop.
Th
e P and Q communication wires should NOT be grounded.
The
shielding nets of the communication wires should be connected together and grounded. Grounding can be
achieved by connecting to the metal casing adjacent to the P Q E terminals of the outdoor unit electrical control
box.
Содержание Mini Amazon III
Страница 140: ......