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2WAY SYSTEM
Outdoor Unit Maintenance Remote Controller
1. Overview
OUTDOOR UNIT MAINTENANCE REMOTE
CONTROLLER (CZ-RTC2) for 2WAY SYSTEM
n
About the outdoor unit maintenance remote controller
The outdoor unit utilizes nonvolatile memory (EEPROM) on
its PCB. This allows EEPROM data to replace the setting
switches that were present on previous 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.).
NOTE
Outdoor unit maintenance remote controller does not function as an
ordinary remote controller. It is therefore only used for test runs and
during servicing.
●
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 controller are still required for the indoor units, even when the outdoor unit
maintenance remote controller is connected.
CZ-RTC2
[Service Checker Section]
System diagram
(Servicing No.: CV6231785082)
Special service checker wiring
Remote controller Ass’y
Operation manual included in package.
Outdoor unit
Inter-unit control wiring
Outdoor unit
control PCB
Indoor
unit
Indoor
unit
Remote
controller
Remote
controller
Outdoor unit maintenance
remote controller
SM830204-05_2WAY SYS.indb 2 2015/01/23 11:56:55
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