13 SAFETY DEVICE
INDOOR UNIT
Heat pump model
Indoor unit CS-A18BB4P
Cooling only model
For Fan Motor Protection, OFF °C 135
Internal Protector (49F) ON °C 85
For Control Protection, Fuse CUT A 3.15
OUTDOOR UNIT
Outdoor Unit Heat pump model 50Hz CU-A18BBP5
Cooling only model 50Hz CU-C18BBP5
For Refrigerant Cycle, OFF MPa -
High Pressure Switch (63H
1
) ON MPa -
For OFF A 15.5
Compressor (Heat pump)
Over Current OFF A 15.5
Protection (Cooling only) 50Hz
RESET - Automatic
Discharge Temp. Compressor °C -
Protection, OFF
Discharge Temp.
Thermistor (Th1)
Liquid Compression Protection, Crankcase Heater Input power W -
Compressor OFF °C 150
Protection, 50Hz
Internal
Protector
ON °C 90
50Hz
Trip time 50Hz 3-10sec/44A
For Fan Motor Protection, OFF °C 135
Internal Protector (49F) ON °C 85
Heating Pressure Switch (Heat OFF MPa 2.35
Pump Only) (Fan Speed) (63H
2
) ON MPa 2.25
Cooling Control, Control
Heat Exchanger method
Outlet Temp.
Thermistor (Th2)
For Control Protection, Fuse CUT A 6.3
1MPa = 10.2 kgf/cm
2
* Head Thermostat only for CU-A28BBP8 / CU-C28BBP8
32
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