Kaysun KEM-HT-75, Инструкция для владельца и по установке

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8.3 Outdoor unit PCBs
8.3.1 MAIN PCB
1) Label descriptions are givevn in Table 8-2
Fig. 8-5 Main board of 65KW and 110KW
Table 8-2
NO. Detail information
1 CN32: Main board power supply.
2 CN99: slave board power supply.
3 CN68: Pump (220-240V control power supply )
1) After receiving start-up instruction, the pump will be started up instantly, and will maintain start-up state always in the
process of operation.
2) In case of refrigerating or heating shutdown, the pump will be shut down 2 minutes after all modules stop operating.
3) In case of shutdown under the pump mode, the pump can be directly shut down.
4 CN74/CN67: CCH, Crankcase heater
5 CN75/CN66: EVA-HEAT, Electric of water side heat exchanger heaters connection
6 CN6: ST1, Four-way valve
7 CN49: SV6, Liquid bypass solenoid valve
8 CN69: SV5, Multi-function solenoid valve
9 CN84: SV8A, Injection solenoid valve of compressor system A
10 CN83: SV8B, Injection solenoid valve of compressor system B
11 CN93: The alarm signal output of the unit (ON/OFF signal)
Attention: the control port value of the pump actually detected is ON/OFF but not 220-230V control power supply, so
special attention should be paid when installing the alarm signal output.