Safety Device - Panasonic CU-YL28HBE5 Service Manual

11.3. Safety device

11.3.1. Outdoor unit
Outdoor unit
For refrigerant cycle
High pressure
switch
For compressor over current
protection for cooling mode
CT1 frequency down
CT2 compressor stop
For compressor over current
protection for heating mode
CT1 frequency down
CT2 compressor stop
Discharge temp protection
Discharge temperature
thermistor (Td)
Liquid compress protection
Crankcase heater
For fan motor protection
Internal
protector (49F)
For condensation temperature
protection control
Heat exchanger
thermistor (Th)
For control protection
Fuse
Main Fuse
2
1MPa = 10.2kgf/cm
Heat pump
50Hz CU-YL24HBE5
model
OFF
MPa
ON
MPa
OFF A
RESET A
OFF A
OFF A
RESET A
OFF A
°C
Compressor
OFF
- W
°C
OFF
°C
ON
°C
OFF
°C
RESET
CUT A
CUT A
CU-YL28HBE5
4.15 4.15
3.3 3.3
10 12
8 10
14.6 16
12.5 13.5
8 10
16.5 17.5
110°C → Comp OFF
Td
110°C x 3 times within 1 hour → display error code
Td
33 33
135 135
87 87
58 58
54 54
2.5 2.5
30 30
102
CU-YL34HBE5 CU-YL43HBE5
4.15 4.15
3.3 3.3
18 20
16 16.5
22 25
21.8 25
16 16.5
25.8 29
33 33
100 135
80 87
58 58
54 54
6.3 6.3
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