Mitsubishi (Bingyan series) central air conditioning communicates with Zhonghong gateway, involving multiple external unit wiring and dialing

Mitsubishi Central Air Conditioning Outdoor Unit Wiring and Dialing (Ice Flame Series)

1. Wiring

Taking 4 outdoor units and 2 systems as an example, the centralized control TB7 of the outdoor units is connected in parallel and then connected to the central air conditioning control gateway

2. Dialing

For example, there are 20 indoor units here, with the indoor unit ID for system 1 being 1-9 and the indoor unit ID for system 2 being 10-20

The indoor unit dialing address should be inquired from the air conditioning manufacturer, as the ID has already been set during installation

System 1: The main unit dialing for the outdoor unit is the starting ID of the indoor unit +50, with the main unit dialing for system 1 being 51, and the slave unit dialing is based on the ID of the main unit

+1, with the slave unit dialing for system 1 being 52 (main unit 51, slave unit 52)

System 2: The main unit dialing for the outdoor unit is the starting ID of the indoor unit +50, with the main unit dialing for system 2 being 60, and the slave unit dialing is based on the ID of the main unit

+1, with the slave unit dialing for system 2 being 61 (main unit 60, slave unit 61)

The outdoor unit dialing position is shown in the following figure:

3. Jumper

By default, the jumper wires of the four external units are plugged into CN41. Simply swap the jumper wire of any one of the external units to CN40

(If the jumper wire is not swapped to CN40, the air conditioning panel will display a fault code)