Panasonic CZ-CFUNC2 Technical Data

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2. Screen display relatedFault diagnosis
1. Unit side 1-1 Have you added or removed indoor unit or outdoor unit units? Yes 2
No 1-2
1-2 Have you recongured the remote controller group? Yes 1-3
No 1-4
1-3 Is it a group spanning multiple areas? Yes 2
No 1-4
1-4 Did you change [Detailed Settings] of the remote controller? Yes 1-5
No 1-6
1-5
Is it one of the following items?
· Cap of indoor unit
· System address
· Indoor unit address
· ECONAVI Yes/No
· Presence of heater
· Group Main/Sub
· Indoor unit type
· Actual capacity of indoor unit
· Presence of VentOpen
Yes 2
No 1-6
1-6 Did you perform automatic address from the remote controller
or the outdoor unit?
Yes 2
No 1-7
1-7 Have you removed the remote controller and changed the
system to remote-less?
Yes 2
No 1-8
1-8 Although it does not fall under any of the above, does “Cong.
change” appear for no reason?
Yes 3
No (END)
2 Perform Check Conguration. If the conguration has changed, perform Update Conguration.
3 Check whether the inter-unit control wiring has one of the following deciencies.
· Running in parallel with power lines
· Branch points exceed 16 places
· The total extension exceeds 1 km
· There is re-branching after branching
· There is a branch point with many branches (“star” or “octopus” conguration)
· The distance between one branch point and the next branch point is less than 2 m
· Defective termination resistance settings
· When shielded wire is used, the shield is grounded on both sides or not grounded
· More than 65 indoor units are connected in S-LINK
If [Cong. change] still appears even when these changes are made, replace the MAIN board of the
corresponding communication adaptor.
If only an Intelligent Controller is used, replace the Intelligent Controller.
2-11. Room temperature display is in error ([I/D unit list] screen)
1. Indoor unit side 1-1 Does it match the sensor temperature display on the remote
controller?
When using remote control sensor: Sensor address 01
When using body sensor: Sensor address 02
Yes Investigate
thermistor
No 1-2
1-2 Is the centralised address set?
([Settings] → [System settings] → [Unit settings])
Yes 1-3
No Apply settings
1-3 Is it only in error when heating? (OK except when heating) Yes *1
No
* 1 When using body sensor with heating, the room temperature after shifting may be displayed.
In this case, it does not match the sensor temperature display of the remote controller.
2-10. [Cong. change] appears on [Alarm list] screen
1
Detection method
This alarm is issued when the system conguration (such as number of adaptors, number of indoor units, and
addresses) has changed or may have been changed, and unlike other alarm messages it does not indicate an
error.
2
Diagnosis of failure
TGR-318_ENG.indb 11 2017/04/06 10:42:41

Panasonic CZ-CFUNC2 Specifications

General

Brand	Panasonic
Model	CZ-CFUNC2
Category	Controller
Language	English