SiEN34-705
Test Operation
General Information
83
4.1.2 Turn Power On
Be sure to turn the power on 6 hours before starting operation to protect
compressors. (to power on clankcase heater)
Check to be sure the transmission is normal.
The transmission is normal if the LEDs display conditions as shown in
table below.
(*) The master unit is the outdoor unit to which the transmission wiring for
the indoor units is conncted.
The other outdoor units are slave units.
Make field settings if needed.
(For the setting procedure, refer to information in "4.4.2. Field Setting
from Outdoor Unit" on page 101 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 judgment 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 LED display of the
outdoor unit PC board.
Conduct check operations.
Check for normal operation.
Make field settings with outdoor
unit PC board.
LED display
(Default status before
delivery)
Micro-co
mputer
operation
monitor
MODE
HAP
9
9
9
9
H1P
7
7
7
7
H2P
7
7
7
7
H3P
7
7
7
7
H4P
7
7
7
7
H5P
7
7
7
7
H6P
7
7
7
7
H7P
7
7
7
7
H8P
7
7
9
7
Master
Slave 1
Slave 2
One outdoor unit installed
When multiple
outdoor unit
installed (*)
TEST
IND
COOL / HEAT select
LED display
7
ON
7
7
OFF
9
9
Blinking
MASTER SLAVE
Low
noise
Demand Multi
