Panasonic S-45PU1E5 Technical Data & Service Manual page 636

E20 Connection Problem of Indoor/Outdoor Units
1. Error Detection Method
The outdoor unit detects an error at following cases during auto address setting.
Indoor unit is not turned On.
•
Indoor/outdoor control line is disconnected and also detects an error in the following cases when the outdoor unit is
•
turned On.
Address(es) of indoor unit(s) are not assigned correctly.
•
Capacity of indoor/outdoor units is mismatched.
•
Total number of indoor units is too many.
•
2. Error Diagnosis
1 Indoor Unit
1-1
1-2
1-3
1-4
5
Are the address(es) of indoor unit(s) assigned correctly?
Are the indoor units turned on?
Be sure that the indoor and outdoor units are connected with
correct combination written in catalog.
The indoor/outdoor control line may be disconnected somewhere between the indoor unit(s)
and the outdoor unit. Make sure the indoor/outdoor control line is connected.
5-28
Yes 1-2
No Set its address
Yes 1-3
No Power on
Yes 1-4
No Correct the connection