Ordinary Display Controls And Functions - Panasonic U-72MF2U9 Service Manual

9. Ordinary Display Controls and Functions

n Functions on the ordinary display
• Connect the special service checker wiring to the outdoor unit PCB.
The connection is shown in the figure below.
When connecting the special service
checker wiring to the remote controller
CZ-RTC4, cut out the wire as shown in the
figure below because the connector of the
remote controller cannot be used directly.
1
2
3
If the communications line in the inter-unit control wiring is connected, it can be left as-is.
l
In case of an independent outdoor unit (1 maintenance remote controller connected to 1 outdoor unit, auto
l
address setting for indoor units not completed), setting mode 1 can be used.
The overall system status for that refrigerant system is displayed.
l
4
5
6
7
8
9
Special service
checker wiring
CUT
Top case
(Back side)
CZ-RTC4
Terminal board
(2P, WHT)
6 mm
Remove the coating.
Approx. 6 mm
Outdoor Unit Maintenance Remote Controller
Relay connector
(2P, WHT)
PCB connector
(3P, BLU)
Bottom case
(Back side)
3 - 16
3WAY VRF SYSTEM
RC Outdoor unit PCB
(3P, BLU)