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8. Test operation method (in the case of
SPLIT system)
• In the case of VRV system, refer to the manual attached to the outdoor unit.
Also refer to the installation manuals attached to the indoor unit and the outdoor unit.
• Check that wiring work of the indoor unit and the outdoor unit is completed.
• Check that control box lid of the indoor unit and the outer panel and piping cover of the outdoor unit
are closed.
• After refrigerant piping, drain piping and electric wiring are completed, clean the inside of the indoor
unit and decoration panel.
• Perform the test operation according to following procedure.
1)
To protect the compressor, turn on the
power to the outdoor unit at least 6
hours prior to test operation.
2)
Confirm that stop valves of both liquid
side and gas side are opened.
Make sure that outer panel and piping
cover are closed before operation (danger
of electric shock).
CAUTION
• After air purge by vacuum pump,
refrigerant pressure may not rise even
though the stop valve is opened. The
reason is that refrigerant system of the
outdoor unit is blocked by electric
expansion valve or the like.
Operation is no problem.
3)
Press the Mode Selector button (
) to
select Cool mode.
4)
Press and hold 3 buttons --the Mode
Selector button (
), the Airflow Direction
Adjustment button (
), and the
Temperature Setting (up) button (
)-- for
4 seconds or longer to enter Test
operation.
“
” is displayed on the basic screen.
3)
[Basic screen]
4)
3)
4)
Press and hold
3 buttons for
4 seconds or longer.
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