101

Signal lines must be shielded. Using other wires may cause signal interference and cause malfunction.

The shielding nets of all shielded wires are connected to each other and finally connected to the sheet metal ground at

one point.

It is forbidden to bundle signal wires, refrigerant pipes, power wires, etc. together. When the power line and the signal

line are laid in parallel, they should be kept at a distance of more than 300mm to prevent the signal source from

being disturbed.

Please use two-core shielded wire ( ≥ 0.75mm²) for the signal cable of indoor and outdoor units, without polarity. The

signal cable of indoor and outdoor units should be connected as far as possible from the end of the outdoor unit.

Signal lines cannot form a closed loop.

The signal line has no polarity, and there is no need to distinguish it when wiring.v

Remarks: The wiring diameter and continuous lengthin the table indicate that the voltage drop is within 2%. When the continuous wiring

lengthexceeds the value in the table, please follow the relevant regulations to select the wire diameter.

Remarks:

1. Please use the refrigerant piping system, the indoor unit-indoor unit room, and the indoor unit-outdoor unit connection signal line as the

same system.

2. All the internal units in the same system must be powered in a unified manner, and some internal units cannot be cut off, otherwise the

unit will fail.

3. When the power cable and the signal cable are parallel, please put the wires into their respective wire ducts, and leave a suitable distance

between the wires. (Distance between power cables: 300mm below 10A, 500mm below 50A)

4. When multiple outdoor units are connected in parallel, the main outdoor unit must be set. (Refer to the settings of the DIP switch)

IDU power wiring

Control system and installation

IDU and ODU signal line wiring

Power Leakage Protector Manual switch Junction box IDU

Model Power supply

Minimum wire diameter(mm²) Manual switch

Leakage

protector Dimensions

(Continuous Length)

Dimensions

(Continuous Length)

Ground

wire Capacity Fuse

All IDU Model 220V ~1N

50Hz

2.5

(30m)

4.0

(50m) φ1.6mm 30 15 20A、30mA

< 0.1sec

ODU(Host) ODU(Slave1) ODU(Slave2)ODU(Slave3)

Signal line between ODU

The last one needs to be shorted with a matching resistor at the RP position on the control board.

Signal line between IDU

V26.09.17

GD TCL INTELLIGENT HEATING & VENTILATING EQUIPMENT CO.,LTD.

Address: No.7 Yuanlin Road, Nantou, Zhongshan, Guangdong, PR China

Web: cac.tcl.com E-mail: hvac@tcl.com

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