15
Fi 8 6 Sl
b d f 6 KW d 110KW
Fig. 8-6 Slave board of 65KW and 110KW
Table 8-3
NO.
Detail information
1
CN140:Power supply, 220-240VAC input
2
CN115:W-HEAT, Electric heater of water flow switch
3
CN125:Three-way valve (hot-water valve)
4
CN123: 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) When the frequency conversion pump plus constant frequency pump control of unit valid for S1-4 ON, CN123 controls
the start and stop of the constant frequency pump.
5
CN121:COMP-STATE,connect with an ac light to indicate the state of the compressor
Attention: the control port value of the pump actually detected is ON/OFF but not 220-240V control power supply, so special
attention should be paid when installing the light.
6
CN119:
HEAT1.Pipeline Auxiliary Heater
HEAT2.Hot Water Tank Auxiliary Heater
Attention: the control port value of the pump actually detected is ON/OFF but not 220-240V control power supply, so special
attention should be paid when installing the pipeline auxiliary heater.
7
CN108: Inverter pump 0-10V output control singnal
8
CN109: W.P-SW,Water pressure switching port.
9
CN110: TEMP-SW,Target water temperature switching port.
10
CN138: Remote function of cool/heat signal
11
CN137: Remote function of on/off signal
12
CN114: Water flow switch signal
13
CN105: Taf1: Water side antifreeze temperature
14
CN101: Tw: Total water outlet temperature sensor when several units are connected in parallel
15
CN103: T5: Water tank temperature sensor
16
CN300: Program burn in port (WizPro200RS programming device) .
17
CN109: Conmunicate with main board
•
Faults
When the main unit suffers faults, the main unit stops operating, and all other units also stop running;
When the subordinate unit suffers faults, only the unit stops operating, and other units are not affected.
• Protection
When the main unit is under protection, only the unit stops operating, and other units keep running;
When the subordinate unit is under protection, only the unit stops operating, and other units are not affected.
CAUTION
Summary of Contents for KEM-HT-75
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