3-122
SM-18006
TROUBLESHOOTING
DIP Switch Setting Operation Remarks
Manual OFF
of Comp.
1. Setting
*Compressor Manual OFF:
Set DSW4-4 ON.
2. Canceling
*Compressor ON:
Set DSW4-4 OFF.
1. When DSW4-4 is ON during
compressor operation,
the compressor stops operating
immediately and the indoor unit
is under the condition of Thermo-
OFF.
2. When DSW4-4 is OFF,
the compressor starts operating
after the cancellation of three-
minutes guard.
* Do not repeat compressor ON/OFF
frequently.
ON
OFF
When the test run operation is complete, turn all switches of DSW4 OFF.
(1) If the wired controller is set to a different mode, the test run function will not start.
In this case, perform the following actions before the test run.
Wired Controller: STOP
Central Controller: STOP and Wired Controller is available mode.
COOL/HEAT Change-Over Switch: Connector (CN17) of water source unit PCB is open.
During the test run mode, do not control the wired controller, the central controller and cool/heat
change-over switch. Otherwise, the operation mode is changed or the test run will end.
If necessary, control them after the test run is complete.
(2) If an alarm code is displayed during the test run, reset the system by turning the main power supply
OFF, then back ON. The system should then operate.
ON
OFF
NOTE:
Thermo-ON: The water source unit and some indoor units are running.
Thermo-OFF: The water source unit and some indoor units stay on, but don't run.
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