Mitsubishi Heavy Industries FDTCVA SERIES Technical Manual page 244

Model: FDT series
To power supply PCB
(501, 601) (CNW9)
Fan motor
(501, 601)
Power supply PCB
(CNW8)
Connector
(CNT)
Address switch
(SW2)
Heat exchanger thermistor,
Return air thermistor
(Thi-R1, Thi-A)
SETTING BY THE JUMPER WIRE
±
Name
Closed Input signal for CnT - Level input
J1 (SW7-1)
(1)
Open Input signal for CnT - Pulse input
Closed Heating thermostat OFF-Lo Fan speed
J2 (SW7-2)
(1)
Open Heating thermostat OFF-Stop for 5 min then Lo fan speed
Closed Input signal for CnT - Normal operation (Run/Stop)
J3 (SW7-3)
(1)
Open Input signal for CnT - Operation permission/prohibition
Closed Normal
J4 (SW7-4)
(1)
Open Set point for Heating offset by +3˚C
Closed
Louver free stop control - Invalid
J5 (SW8-1)
(1)
Open Louver free stop control - Valid
Closed Freeze prevention fan control activated.
J6 (SW8-2)
(1)
Open Freeze prevention fan control deactivated.
Closed Louver position : Normal
J7 (SW8-3)
(1)
Open Louver position : For wind 1
Note (1) "Open" means that jumper wire is not provided on the PCB or the
connection is cut.
(2) The replacement PCB is not equipped with jumpers J1 ~ J7. Instead,
SW7 and 8, with the same functions as jumpers J1~J7, are used in the
position where the jumpers were previously. Set SW7 and 8 locally in
accordance with the above table.
Fan motor
(151~401)
CNM3
CNW9
52X6 52X1 52X2 52X3
C12
C13
C1
PC5
IC12
L1
IC3
C58
C3
C4
SW2
CNY CNI
CNH CNN1
Heat exchanger
J9~J11
thermistor
(SW10)
(Thi-R2)
Function
-
C41
CNR
CNV
KN1
52X4
IC8
CNG
IC11
LED2 LED1
SW7
C5
ON
J1~J4
1 2 3 4
SW8 SW9
(SW7)
SW10 SW5
ON
DIP switch
1 2 3 4
(SW9)
J5~J7
(SW8)
DIP switch
(SW5)
CONTROL SETTING SWITCH (SW5, SW9, SW10)
±
Function of DIP switch SW5 Master/slave setting and fi lter
sign setting (Usually all turned OFF)
Switch
ON
SW5-1 SW5-2
OFF
ON
SW5-3 SW5-4
OFF
Function of DIP switch SW9
Switch
SW9-3
SW9-4
Note (1) It is normally ON only in the case of SW9-4.
Function of DIP switch SW10
Switch
SW10-1 (J9)
OFF
SW10-2
SW10-3
(J10)
(J11)
ON
243
-
To power supply
(CNW7)
CNW7
L2
C23
TM1
52X8-1
R17
52X7
PC2 PC1
C11
CNB
Remote
controller
Function
Slave c
ON
Slave b
OFF
Slave a
ON
OFF Master
ON Setting time : 1000hrs. (Unit stop)
OFF Setting time : 1000hrs. (Display)
Setting time : 600hrs. (Display)
ON
Setting time : 180hrs. (Display factory setting)
OFF
Function
Emergency operation
ON
Normal
OFF
Fan control : Powerful mode
ON
Fan control : Mild mode
OFF
Function
OFF Auto swing function - Invalid
ON Auto swing function - Valid
OFF Remote controller air flow –
Remote controller air flow 1 speed
ON
Remote controller air flow 2 speed
OFF
Remote controller air flow 3 speed
ON
Louver motor