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28 Ceiling Cassette Air Conditioner
Installation
1) PRECAUTIONS IN TEST RUN
• The initial power supply must provide at least 90% of the rated voltage.
Otherwise, the air conditioner should not be operated.
For test run, carry out the cooling operation first even during winter season.
Carry out the test run more than 5 minutes without stopping.
(Test run will be cancelled 18 minutes later automatically)
• The test run is started by pressing the room temperature checking button and down timer button for 3 sec-
onds at the same time.
• To cancel the test run, press any button.
• After completing work, be sure to measure and record trial run properties, and store measured data, etc.
• Measuring items are room temperature, outside temperature, suction temperature, blow out temperature,
wind velocity, wind volume, voltage, current, presence of abnormal vibration and noise, operating pressure,
piping temperature, compressive pressure.
• As to the structure and appearance, check following items.
CHECK THE FOLLOWING ITEMS WHEN INSTALLATION IS COMPLETE
❏ Is the circulation of air adequate?
❏ Is the draining smooth?
❏ Is the heat insulation complete
(refrigerant and drain piping)?
❏ Is there any leakage of refrigerant?
❏ Is the remote controller switch operated?
❏ Is there any faulty wiring?
❏ Are not terminal screws loosened?
M4......118N.cm{12kgf.cm}{10.4lbf.in}
M5......196N.cm{20kgf.cm}{17.4lbf.in}
M6......245N.cm{25kgf.cm}{21.7lbf.in}
M8......588N.cm{60kgf.cm}{52.1lbf.in}
8. Test running
CAUTION