Service Checker; Outdoor Unit Maintenance Remote Controller; Overview - Panasonic U-4LE1R8 Service Manual

1. Outdoor Unit Maintenance Remote Controller

1-1. Overview

About the outdoor unit maintenance remote
controller
The outdoor unit utilizes nonvolatile memory (EEP-
ROM) on its PCB. This allows EEPROM data to
replace the setting switches that were present on pre-
vious PCBs. The outdoor unit maintenance remote
controller is used to set and change these EEPROM
data.
In addition to setting and checking the outdoor unit
EEPROM data, this remote controller can also be
used to monitor the outdoor unit alarm history, monitor
the various indoor and outdoor temperatures, and
check the indoor unit connection status (number of
units, operating mode, etc.).
System Diagram
Outdoor unit maintenance
remote controller
Special service checker wiring
(Servicing No. CV6231785082)
Remote controller Ass'y
* Operation manual included in package.
• The special service checker wiring is required in order to connect the outdoor unit maintenance remote controller
to the outdoor unit PCB.
• Ordinary remote controllers or other controllers are still required for the indoor units, even when the outdoor unit
maintenance remote controller is connected.
6
Outdoor unit
control PCB
6-2
Mini VRF SYSTEM
[Service Checker Section]
Inter-unit control wiring
Indoor unit Indoor unit
Remote Remote
controller controller

Service Checker