Test Running - Friedrich MR24UY3J Manuel D'installation

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Test running

1. PRECAUTIONS IN TEST RUNNING
• The initial power supply must provide at least 90% of the rated voltage.
Otherwise, the air conditioner should not be operated.
① Always initialize first test in Cooling Mode even if started in the heat-
CAUTION
② Carry out the test run more than 5 minutes without fail.
• The test run is started by pressing the room temperature button and down button for 3 seconds
at the same time.
• To cancel the test run, press any button.
CHECK THE FOLLOWING ITEMS WHEN INSTALLATION IS COMPLETE
• After completing work, be sure to measure and record test run properties, and store measured
data, etc.
• Items to measure are room temperature, outside temperature, suction temperature, discharge
temperature, wind velocity, wind volume, voltage, current, presence of abnormal vibration and
noise, operating pressure, piping temperature, compressor pressure.
• Also inspect the installation and appearance, check following items.
□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?
2. Connection of power supply
1. Connect the power supply cord to the independent power supply.
• Circuit breaker is required.
2. Operate the unit for fifteen minutes or more.
3. Evaluation of the performance
1. Measure the temperature of the
intake and discharge air.
2. Ensure the difference between the
intake temperature and the discharge
one is more than 46°F (Cooling) or
reversely (Heating).
HAND OVER
Teach the customer the operation and maintenance procedures, using the operation manual.
(air filter cleaning, temperature control, etc.)
ing season, if first test is run in heating compressor damage could
occur.
(Test run will be cancelled 18 minutes later automatically)
□Is the remote controller switch operated?
□Is there any faulty wiring?
□Ensure terminal screws are not adjusted.
(Torque for screw size)
M4.....11 lbf.in / 118 N.cm(12 kgf.cm)
M5.....18 lbf.in / 196 N.cm(20 kgf.cm)
M6.....22 lbf.in / 245 N.cm(25 kgf.cm)
M8.....53 lbf.in / 588 N.cm(60 kgf.cm)
Thermometer
Test running
Installation Manual 19

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