-
246
-
CNT
CNV
CNO
CNH
CNF
CNB
CNQ
CNN1 CNN2
SW2
SW10
SW5
SW7
SW9
SW8
CNZ
CNI
CNO
CN
A
F3
F2
CNK2
CNK1
CNW2
CNG
CNE
CNW0
CNW1
CNM3
52X3
52X5
52X4
52X2
52X1
52X6
L3
L2
L1
L4
CNJ2
CNR
F1
LED1
LED2
PCB power supply connector
(Primary side)
PCB power supply connector
(Secondary side)
Heat exchanger thermistor
(Thl-R2)
Address swith
(SW2)
DIP switch
(SW5)
DIP switch
(SW9)
J6
(SW8)
J1~J4
(SW7)
Float switch
J10~J11
(SW10)
Connector
(CNT)
Drain motor
Remote controller
Power supply
Heat exchanger thermistor,
Return air thermistor
(Thl-R1, Thl-A)
Input signal for CnT - Level input
Input signal for CnT - Pulse input
Heating thermostat OFF-Lo Fan speed
Heating thermostat OFF-Stop for 5 min then Lo fan speed
Input signal for CnT - Normal operation (Run/Stop)
Input signal for CnT - Operation permission/prohibition
Normal
Set point for Heating offset by +3˚C
Freeze prevention fan control activated
Freeze prevention fan control deactivated
J1 (SW7-1)
J2 (SW7-2)
J3 (SW7-3)
J4 (SW7-4)
J6 (SW8-2)
Closed
Open
(1)
Closed
Open
(1)
Closed
Open
(1)
Closed
Open
(1)
Closed
Open
(1)
Name
Function
Note (1)
(2)
“Open” means that jumper wire is not provided on the PCB or the
connection is cut.
The replacement PCB is not equipped with jumpers J1 ~ J4, J6. Instead,
SW7 and 8, with the same functions as jumpers J1~J4, J6, are used in
the position where the jumpers were previously. Set SW7 and 8 locally
in accordance with the above table.
Emergency operation
Normal
Fan control : High speed (High Ceiling)
Fan control : Standard
SW9-3
SW9-4
Switch
Function
Remote controller air flow –
Remote controller air flow 1 speed
Remote controller air flow 2 speed
Remote controller air flow 3 speed
OFF
ON
OFF
ON
ON
OFF
ON
OFF
Switch
Function
OFF
ON
SW10-3
(J11)
SW10-2
(J10)
Slave c
Slave b
Slave a
Master
SW5-2
SW5-1
ON
OFF
ON
OFF
ON
OFF
Setting time : 1000hrs. (Unit stop)
Setting time : 1000hrs. (Display)
Setting time : 600hrs. (Display)
Setting time : 180hrs. (Display factory setting)
SW5-4
SW5-3
ON
OFF
ON
OFF
ON
OFF
Switch
Function
CONTROL SETTING SWITCH (SW5, SW9, SW10)
Function of DIP switch SW5 Master/slave setting and fi lter
sign setting (Usually all turned OFF)
Function of DIP switch SW9
SETTING BY THE JUMPER WIRE
Function of DIP switch SW10
Model: FDUM, FDU series
