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matters needing attention:

The DC2.5 socket of the gateway power supply and the two-wire terminal should be connected in parallel internally, and should not be used simultaneously.

Attention: Please provide a suitable working power supply. Excessive or insufficient voltage may cause physical damage to this product and cannot be covered by warranty service.

The CCN terminal of the chiller unit is usually located near the control panel.

When connecting multiple chillers to a gateway, the arm in arm method as shown in the diagram must be used, and star connections are not allowed.

The CCN terminals of the chiller unit are all+, -, and G three wire terminals. In addition to the corresponding+and - terminals, which must be connected with twisted pair shielded wires, the G terminal is the reference ground and must also be connected to each other.

Due to the RS485 electrical isolation of the gateway, only the+and - terminals need to be connected.

When a gateway is only connected to one chiller unit, it is recommended to use the control power supply of the chiller unit for power supply. When a gateway is connected to multiple chillers, it is recommended to use an independent power supply.

When wiring outdoors, steel pipes must be threaded and grounded.

When wiring the chiller unit, live operation is strictly prohibited.