Daikin VRV II-Q RQYQ8-48PY1B Service Manual page 73

SiBE341027
1.1.2 Turn power on
Turn outdoor unit and indoor
unit power on.
Check the LED display of the
outdoor unit PCB.
Make field settings with outdoor
unit PCB.
[Outdoor unit]
[El. comp. box lid (upper)]
Main PCB
(A1P)
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.
LED display
(Default status before
delivery)
One outdoor unit installed
When
multiple
outdoor unit
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 "Field Setting from
Outdoor Unit" on P. 68 onward.)
For the outdoor-multi system, make field settings with the master unit.
(Field settings made with the slave unit will be all invalid.)
[Main PCB]
X6A
El. comp. box lid
[Service Precaution label]
X1A
Micro-
computer
MODE TEST
operation
monitor
HAP H1P H2P
l h h
l h h
Master
l h h
Slave 1
l h h
Slave 2
l h h
Slave 3
BS button (BS1~BS5)
LED lamp (H1P~H8P)
X37A X28A
H1P H2P H3P H4P H5P H6P H7P H8P
BS1 BS2 BS3 BS4 BS5
X100A
X27A
F1U
F2U
X77A
Test Operation
k h
LED display ON OFF
COOL / HEAT select
Low
Demand Multi
noise
IND MASTER SLAVE
H3P H4P H5P H6P H7P
k h h h
k h h h
h h h h
h h h h
h h h h
X20A X23A X22A
HAP
ON ON
1 2 3 4 1 2 3 4
X34A
SERV.
1 2 3 4 1 2 3 4
MONITOR
Dip switch
(DS2-1~2-4)*2
Dip switch
(DS1-1~1-4)
Micro-computer
service monitor (HAP)
X24A
*2: Only with
F1 F2 F1 F2 Q1 Q2
IN/D UNIT OUT/D UNIT MULTI UNIT
l
Blinking
H8P
h h
h k
h l
h l
h l
spare PCB
63