Daikin RXYQ-TA Series, Service Manual

Page: 172 / 337

Test Operation SiUS341615E
159 Field Settings
3.4 Turn Power ON
• Be sure to turn the power ON 6 hours before starting operation to protect
compressors. (to power ON crankcase heater)
• Check to be sure the transmission is normal.
In a normal condition, the 7-segment display is OFF. Please refer to the
following figure for other states.
(
∗
) The master unit is the outdoor unit to which the transmission wiring for
the indoor units is connected.
The other outdoor units are slave units.
• Make field settings if needed.
(For the setting procedure, refer to information in "Field Settings for
Outdoor Unit" on page 118 onward.)
For the outdoor-multi system, make field settings with the master unit.
(Field settings made with the slave unit will be all invalid.)
The check operations shown below will be automatically initiated.
• Check for erroneous wirings
• Check for failure to open stop valves
• Check for excessive refrigerant refilling
• Automatic judgement of piping length
• Before starting the normal operation after the completion of check
operations, make sure indoor and outdoor units normally operate.
Turn outdoor unit and indoor
unit power ON.
Check the 7 segment display of
the outdoor unit PCB.
Conduct check operations.
Check for normal operation.
Make field settings with outdoor
unit PCB.
OFF
Light up
Blinking
SEG1 SEG2 SEG3
Main error code
Normal
Abnormal
Sub error code
Power switched ON
initial check
Initialisation in
progress
Initialisation
terminated
(normal)
Switching
alternative
1 second