Temperature Monitor; Outdoor Unit Alarm History Monitor; Ordinary Display Controls And Functions - Panasonic U-8ME1E81 Service Manual

1. Outdoor Unit Maintenance Remote Controller

Temperature monitor

Displays the temperature from each indoor/outdoor sensor.

Outdoor unit alarm history monitor

Displays the outdoor unit alarm history.
Setting the outdoor unit EEPROM data
Settings mode 1 and settings mode 2 can be used to make outdoor unit EEPROM data settings.

1-3. Ordinary Display Controls and Functions

Functions on the ordinary display
Connect the special service checker wiring to the outdoor unit PCB.
The connection diagram is shown below.
Special service checker wiring
All units start/stop (Fig. 6-1)
<Operation>
The (ON/OFF operation) button can be used to start and stop all
indoor units.
• The LED illuminates if any indoor unit is operating.
• The LED blinks if an alarm occurs at any of the operating indoor units.
Cooling/heating change (Fig. 6-1)
NOTE
Cooling and heating mode changes are only available when all indoor units
are stopped.
<Operation>
The (MODE) button can be used to change between heating and
cooling operation.
• The display indicates the operating mode of the indoor unit with the
lowest unit No.
All units test run (Fig. 6-2)
<Operation>
The (CHECK) button can be used to start and stop a test run for all
units.
• To start, press and hold the button for 4 seconds.
During the test run, "Test" is displayed.
• The status of test runs performed from the indoor unit remote controller is
not displayed on the outdoor unit maintenance remote controller.
Double-speed
• Do not use for actual operation.
(Doing so may damage the devices.)
<Operation>
The timer button can be used to change between double-speed and
normal operation.
• During double-speed operation, the SLEEPING MODE
displayed.
RC (3P, blue)
PCB connector (3P, blue)
NOTE
Relay connector (2P, white)
Outdoor unit maintenance remote controller
Outdoor unit PCB
LED
mark is
6-3
2WAY SYSTEM
Service Checker
If the inter-unit control wiring
is connected, it can be left
as-is.
In case of an independent
outdoor unit (1 maintenance
remote controller connected
to 1 outdoor unit,
automatic address setting for
indoor units not completed),
both setting mode 1 and set-
ting mode 2 can be used for
outdoor unit EEPROM data
settings.
The overall system status for
that refrigerant system is
displayed.
Fig. 6-1
Fig. 6-2
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