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11.4.6. Precautions with Regard to Test Operation
• Use only insulation tool to switch on the microswitch on the
electric circuit board (do not use finger or metallic tool).
• Do not switch on power before all installation is completed.
• After power on, make sure the voltage is 90% ~ 110% of the
rated voltage.
• May use corresponding switches on the control panel of the
outdoor unit to initiate “Test run”.
• Test run consists of cooling and heating modes (Single
mode unit does not have heating function).
• Press and hold SW1 more than 1 second. In DS1, under
different setting condition, outdoor unit will perform “cooling”
test run or “heating” test run.
(Must first select “cooling” mode.)
When operation mode changes, the compressor stops operation momentary.
• Press SW1 again to cancel test run.
• If outdoor temperature is high during “heating” test run, or low during “cooling” test run, the protection system in the system will
be activated within several minutes.
DS1
Operation mode
1234
ON OFF “Cooling” test run
ON ON “Heating” test run
OFF OFF PUMP DOWN
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