0 2500 CONTROL
GMV5 COMPACT MULTI VRF UNIT
SERVICE MANUAL
same indoor unit's network.
(2) When two wired controllers control one indoor unit, the addresses of those two wired controllers should be
different. Please refer to parameter setting.
(3) When two wired controllers control multiple indoor units, wired controller can connected to any one
indoor unit, while the connected indoor unit should be the same series indoor unit. The addresses of those two
wired controllers should be different. Please refer to parameter setting. The total quantity of indoor unit controlled
by wired controller can't be more than 16 sets and all connected indoor units must be within the same indoor unit
network.
(4) When one (or two) wired controller(s) control(s) multiple indoor units at the same time, the controlled
indoor unit's setting should be the same.
(5) Wiring of wired controller and indoor unit network must be according to one of the four wiring method. As
for the connection method shown in fig 2 and 4, there should be only one master wired controller (address is 01)
and one slave wired controller (address 02). The quantity of wired controller can't exceed two.
2.2.2 Installation method
Above is a simple installation method of wired controller. Please pay attention to the following:
1) Before installation, disconnect power of the indoor unit. Do not operate when power is connected.
2) 2-core twisted pair cable from the installation hole on the wall and lead it through the shape hole on
the back plate of wired controller.
3) Place the wired controller on wall and secure its back plate on wall with screw M4X25.
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