Panasonic U-8MF2E8 Service Manual page 49

11. Alarm Information
11-2. Current Protection
11-2-1. Inverter Compressor and Inverter Fan Motor
Alarm
Compressor 1 primary current detected over-current higher than values.
H01
The fan motor current is included in primary current.
P16 Compressor 1 secondary current detected over-current higher than values.
P29 Occurs when missing phase or over-current is detected at inverter compressor start.
H31 Occurs when HIC detects abnormal temperature.
List of over-current
Outdoor Unit
Primary current [A]
Secondary current [A]
11-2-2. Constant-Speed Compressor
An alarm occurs when over-current or lock current is detected.
List of over-current and lock currents
Outdoor unit
Overload current [A]
Lock current [A]
List of Alarms
Detected current
Alarm display
11-2-3. CT Circuit Detection Trouble
Alarm
Compressor 1 H03
Compressor 2 H13
8 hp 10 hp
15.1 19.8
20.6 21.8
12 hp 14 hp
13.6 13.6
16.1 16.1
hp = horsepower
Over current Lock current
H11 H12
Occurs when an open CT circuit is detected in the inverter compressor.
Occurs when a current value of over 18A is detected when the inverter
compressor is stopped.
Occurs when a primary current value of 0.7A or less is detected when the inverter
compressor is over 35Hz and the secondary current is over 7.0A.
Occurs when an open CT circuit is detected in the constant-speed compressor.
Occurs when a current value of 2.0A or less is detected when the constant-speed
compressor is operating.
Description
12 hp 14 hp
21.0 21.0
21.0 22.5
hp = horsepower
16 hp
16.3
19.3
Description
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3WAY SYSTEM
Control Functions
16 hp
22.5
22.5
1