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Things to check after completing the installation
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Before supplying the power, use a voltmeter and phase tester to check the voltage and the phase.
- R, S, T terminal:
• Never measure the communication terminal since communication circuit may get damaged.
• Check for short-circuit of the communication terminal with a general circuit tester.
CAUTION
Check the following after the installation is completed.
• Have you checked the external surface and the inside of the outdoor unit?
•
unit
• Is the place well-ventilated and ensures space for service?
Installation
•
work
• Have you checked the external surface and the inside of the indoor unit?
Indoor
• Is there enough space for service?
unit
•
• Have you selected correct pipes?
• Are the liquid and gas valve open?
•
•
•
work
• Did you check the connection of liquid and gas pipes?
• Have you selected correct insulator for pipes and insulated them correctly?
• Did you insulate the pipes and connection part correctly?
• Is the quantity of the additional refrigerant correctly weighed in? (You must record the amount of
additional refrigerant on the service record paper placed inside of the outdoor unit.)
• Have you checked if the drain pipes of the indoor and outdoor unit are connected together?
Drain pipe work
• Have you completed the drain test?
• Is the drain pipe properly insulated?
•
the range of rated tightening torque?
•
Electrical wiring
•
work
•
• Is the length of the wire within allowed range?
• Is the wiring route correct?
• Did you set the address of the indoor and outdoor units properly?
Setting address
•
remote controllers)
•
frame is correctly installed.
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