Test run should be performed after refrigerant piping, drain, wiring, etc. have been finished.
This heat pump air conditioner comes equipped with a crankcase heater. Ensure that the main power supply
has been turned ON for more than 6 hours ahead of power on, doing so will ensure compressor oil is fluid.
Failure to do so may cause damage to the compressor.
Do not operate the system until all the check points have been cleared.
• Ensure that the stop valves of the outdoor unit are fully opened.
• Ensure that all wires have been fully connected and torqued.
• Ensure that the electrical resistance is more than 2MΩ by measuring the resistance between ground and the
terminal of the electrical parts. If not, do not operate the system until the electrical leakage is found and
repaired.
Test run function identification
Operate the thermostat to turn ON the equipment, then proceed test run.
Pay attention to the following items while the system is running.
Do not touch any of the parts by hand at the discharge gas side. Compressor body and pipes at the discharge
side will reach temperatures in excess of 194°F (90°C).
Turn off the power after the test run is finished.
Installation of the equipment is complete after concluding the test run. For additional information, contact the
local technical service center for further information.
Test run
CAUTION
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