Daikin Quaternity H-Series Engineeiring Data page 76

EDUS04-906_b
1. When the System is Not Working
Is the air conditioner working properly?
Are the connectors of the wiring properly connected?
Are the remote controller and field wiring properly connected?
Are all switch settings correct?
If there is nothing apparently wrong, conduct a diagnostic check using the following procedure.
Diagnostic check
2. Switch Settings and Connection Terminals
1
S
4
2
1
S
2 1
1 S
2
2
1
S
2 3
S6
CPU normal operation monitor
(Flashes when the operation is normal.)
Room Air Conditioners H-Series
Test Operation and Confirmation
START
Is the "CPU Normal" light
for the remote controller's
PCB flashing?
Yes
Is the malfunction light
of the remote
controller's PCB on?
Yes
 OR 
Selecting the operation
SW1-1
mode
Selecting On/Off when
SW1-2 power is restored after
a power failure
1
S
8 2
1
S
2
5
SW1-1: OFF
3
(Operation mode 1)
SW1
1
2
S1
OFF ON
S2
S3
SW1-1: ON
(Operation mode 2)
S4 (1) - (2)
(1) - (2)
S5
(1) - (3)
S6 connector
S8 (+) - (–)
 Defect in adaptor PCB.
 Defect in wiring.
 Defect in indoor unit's PCB.
 Transmission error (between remote controller and indoor unit)
No
Is 12 V DC being supplied
No
to No. 4 and No. 5 on S6 of the
remote controller's PCB?
Yes
Is 12 V DC being supplied
to No. 4 and No. 5 on S21

of the indoor unit?
No

OFF Operation mode 1 (Used with the exception of fan coil remote controller settings)
ON Operation mode 2 (Used with fan coil remote controller settings)
OFF Always Off
Off if operation was in Off mode before power failure; On if operation was in
ON
On mode before power failure
Instantaneous contact
S1 (1) - S2 (1)
S1 (1) - S1 (2)
S2 (2), S3
S1, S2 OPEN
S1 (1) - S1 (2) CLOSE
S1 (1) - S2 (1) CLOSE
S1 (1) - S2 (2) CLOSE
S3 (With the remote
controller only)
Voltage on (DC12 V), normal operation light output
Normal operation light output (power for light required)
Malfunction light output (power for light required)
Connect with connector S21 on the PCB of the indoor unit
Relay DC 12 V power supply terminal (Field supplied parts)
Optional Accessories
No
Yes
 
Normal contact
OPEN CLOSE
OPEN, Not activated
Pulse input
On/Off switching
CLOSE, Activated
Not used
Not activated
On, airflow: L tap
On, airflow: M tap
On, airflow: H tap
OPEN, Cooling
CLOSE, Heating
2P031616-1B
75