4.HYDRO UNIT
Engineering Data book
15
4-1-5. External Output specifications
4-1-6. External Input specifications
Description Output
Maximum
current
Max voltage
Maximum
length
External pump No.1 AC230V 1 A – 12 m
External boost heater AC230V 1 A – 12 m
Output as required when outdoor air
temperature is -20°C or less
Boiler control
Non-voltage
contacts
0.5 A AC230 V 12 m
Output as required when outdoor air
temperature is -10°C or less
1 A DC24 V 12 m
ALARM Output
Non-voltage
contacts
0.5 A AC230 V 12 m
1 A DC24 V 12 m
Compressor Operation Output
Non-voltage
contacts
0.5 A AC230 V 12 m
1 A DC24 V 12 m
Defrost Output
Non-voltage
contacts
0.5 A AC230 V 12 m
1 A DC24 V 12 m
Description Input Maximum length
Emergency stop control Non-voltage 12 m
Cooling thermostat input Non-voltage 12 m
Heating thermostat input Non-voltage 12 m
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