Gree LSQWRF130VM/NhA-M Installation, Start-Up And Maintenance Manual page 26

(2) LSQWRF60VM/NhA-M
Note: the output control lines of the AC contactors for the auxiliary electric heater 1, auxiliary electric
heater 2 can be wired to the corresponding wiring board of all units, while those for the error indicator and
external passive contact switch should be wired to the corresponding wiring board of all units.
Unit 1
12
When one auxiliary electric heater serves more than one modules, its wiring terminals
12 and 13 are connected to terminals G and H respectively of an AC contactor marked
with KM3.
When multiple modules have direct control over one auxiliary electric heater, its AC
contactor is wired to an AC contactor (KM3 or KM4) of any one module.
Unit 2
13 12 13
G H
KM3
A Series Inverter Modular Air-cooled Chiller (Heat Pump)
External passive contact switch
Unit 3
12 13
Unit 1~16
12
13
KM3
22
error indicating
running indicating
12 13