Daikin RXYQ96PYDN Service Manual page 90

SiUS34-801A_b
10.2.2 Turn Power On
Turn outdoor unit and indoor
unit power on.
Check the LED display of the
outdoor unit PC board.
Make field settings with outdoor
unit PC board.
* Another switch box is provided on the front left
side of the unit, but it requires no field settings.
Conduct check operations.
Check for normal operation.
VRVIII R-410A Heat Pump 60Hz
Be sure to turn the power on 6 hours before starting operation to power
on the crankcase heater. This protects the compressors.
Check to be sure the transmission is normal.
The transmission is normal if the LEDs display conditions are as shown
in the following table:
LED display
(Default status before
delivery)
One outdoor unit installed
Master
When multiple
outdoor unit
Slave 1
installed (*)
(*) 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 12.1 Field Setting
from Outdoor Unit on page 95 onward.
For the outdoor-multi system, make field settings with the master unit.
* Field settings made with the slave unit will be invalid.
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Inside a switch box
"A1P" PC board
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 judgment of piping length
Before starting the normal operation after the completion of check
operations, make sure indoor and outdoor units are operating normally.
LED display 7 ON 7 7 OFF 9 9 Blinking
COOL / HEAT select
Micro-co
mputer
MODE TEST
operation
MASTER SLAVE
IND
monitor
HAP H1P H2P H3P
7
9 9 7 7 7 7
7
9 9 7 7 7 7
7 7
9 9 7 7 7 7
Inside a switch box
"A1P" PC board
Test Operation
Low
Demand Multi
noise
H4P H5P H6P H7P H8P
7 7 7 7 7 7 7 7
7 7 7 7 7 7 7 7
7 7 7 7 7 7 7 7
7 7
7
9 9
75