Daikin RTSQ20PY1 Service Manual page 143

SiBE31-801_C
1.2.2 Turn Power On
Turn outdoor unit, function unit
and indoor unit power on.
Check the LED display of the
outdoor unit PCB.
Make field settings with outdoor
unit PCB.
(Reference)
<RTSYQ10P>
Switch box
Outdoor unit Function unit
Test Operation
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.
The transmission is normal if the LEDs display conditions as shown in
table below.
Micro-
computer
LED display
operation
(Default status
monitor
before delivery)
HAP
One outdoor unit installed
Multiple
Master
outdoor unit
system (*)
Slave
(*) 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 "3.2. Field Setting from
Outdoor Unit" on page 166 onward.)
For the outdoor-multi system, make field settings with the master unit.
(Field settings made with the slave unit will be all invalid.)
<RTSYQ14 · 16P>
Switch box
Outdoor unit Function unit
LED display k ON h OFF l Blinking
COOL / HEAT select
MODE TEST
IND MASTER SLAVE
H1P H2P H3P H4P
l h h k h
l h h k h
l h h h h
<RTSYQ20P>
Outdoor unit 1 Outdoor unit 2
(Master or slave) (Master or slave)
Test Operation
Low
Demand Multi
noise
H5P H6P H7P H8P
h h h h
h h h k
h h h l or h
Switch
box
Function unit
132