Panasonic U-16MF2E8 Service Manual

3WAY SYSTEM
Control Functions
1 - 44
1
12. Backup Operation
This system includes a function for automatic backup operation.
An alarm is displayed on the remote controller to inform the user that a failure has occurred.
When the following alarm occurs, automatic backup operation is engaged.
Automatic backup operation is not engaged in cases of serious alarm such as communications alarms, etc.
A :
When there is one outdoor unit in the system, only compressor that has sensor failure stops.
When there are multiple outdoor units in the system, the outdoor unit which contains the problem stops.
B :
NOTE :
After automatic backup operation caused by alarm listed in alarm list 1, it will not be canceled automatically
when the repair of the failed outdoor unit is completed.
Automatic backup mode will be canceled only when the power on outdoor unit No.1 is reset.
Therefore, after repair work is completed, be sure to check whether or not automatic backup mode has been
canceled.
When there is one outdoor unit in the system, the backup operation does not work.
When there are multiple outdoor units in the system, the outdoor unit which contains the problem stops.
12-1. Automatic Backup Operation
12-1-1. Alarms That Result in Automatic Backup Operation
Alarm list 1 (Backup operation continues unless power supply of all outdoor units is turned off.)
Alarm display
Over-current of compressor 1
Compressor 1 CT sensor disconnected or short-circuit
Over-current of compressor 2
Lock current of compressor 2
HIC trouble for compressor 1
AOver-current of inverter device
Outdoor unit fan motor trouble
Malfunction of compressor 1 start
A
A
A
A
A
A
㻮
H03
H01
H11
H31
H12
P16
P29
P22
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Panasonic U-16MF2E8 Specifications

General

Brand	Panasonic
Model	U-16MF2E8
Category	Air Conditioner
Language	English