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12.3 Test Run Procedure
Test operation can be performed from outdoor unit or indoor unit
1. Press COOLING (SW3) or HEATING TEST (SW2) switch from
outdoor PCB (main) for one second to start the test operation.
2. Select cooling operation first for 20 minutes before select
heating operation. This is to avoid liquid in condenser to flood
the compressor which could cause knocking noise, current
increase and undesirable vibration.
(1) Test operation from outdoor unit
(2) Test run from indoor unit
1. Check that COOL or HEAT is displayed on the LCD.
2. Press OFF/ON to start the test operation.
3. Within one minute after pressing the OFF/ON button, press
TEST RUN button.
4. Then, the pipe temperature (gas pipe) will display on the LCD.
5. Press TEMP/A/C No. UP or DOWN button to display other
pipe temperature in a group control system.
COOLING TEST (SW3)
HEATING TEST (SW2)
Outdoor PCB (main)
Wired remote controller
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