21
4.5 Connecting inputs/outputs
For multiple outdoor units control with FTC (Slave), see section 9.
FTC (Master)
1 2 3 4 5 6
+ - + - + -
Analog input (0.5 - 3.5V)
5VDC
GND
121314
TBI.3
IN10
IN9
IN8
IN1A
1
3
CN3C
(BLU)
1
3
CNPWM
(WHT)
LED1
LED2
LED3
LED4
CN108
5
1
5
1
5
1
CNRF
(WHT)
CN105
(RED)
TBO.1
TBO.2
TBO.3
TBO.4
CNP1
(WHT)
CNP4
(RED)
CNV1
(WHT)
CNIT
(BLU)
CN01
(WHT)
F2
F1
6.3A 250V
10A 250V
SW1
SW2
SW3
SW4
SW5
1
8
1
8
1
1
5
1
3
1
3
8
1
1
2
3
4
5
6
1
2
3
4
5
6
1
2
3
4
5
6
7
8
TBO.5
1
2
3
4
5
6
7
8
1
2
3
4
5
6
8
1
6
1
2
4
6
1
2
1
2
CNBHT
(BLK)
1
3
1
3
CNIH
(ORN)
1
4
1
3
CNW5
(WHT)
CN21
(YLW)
CNW12
(RED)
CN20
(RED)
TBI.2
12
6
10
14
8
13
7
11
9
4
5
3
2
1
TBI.3
2 4 6 8 10 12 14
1 3 5 7 9 11 13
1
4
CN1A
(WHT)
2 4 6 8 10 12 14
1 3 5 7 9 11 13
TBI.1
4. Electrical work
When the wires are wired to adjacent terminals
use ring terminals and insulate the wires.
Signal inputs
Item
Name
Model and specifications
Signal input
function
Signal input
wire
Use sheathed vinyl coated cord or cable.
Max. 30 m
Wire type: CV, CVS or equivalent
Wire size: Stranded wire 0.13 mm² to 1.25 mm²
Solid wire: ø0.4 mm to ø1.2 mm
Switch
Non-voltage “a” contact signals
Remote switch: minimum applicable load 12V DC, 1mA
Wiring specification and local supply parts
Name Terminal block Connector Item
OFF (Open)
ON (Short)
IN1
TBI.1 13-14
—
Room thermostat 1 input *1
Refer to SW2-1 in <5.1 DIP Switch Functions>.
IN2
TBI.1 11-12
—
Flow switch 1 input
Refer to SW2-2 in <5.1 DIP Switch Functions>.
IN3
TBI.1 9-10
—
Flow switch 2 input (Zone1)
Refer to SW3-2 in <5.1 DIP Switch Functions>.
IN4
TBI.1 7-8
—
Demand control input
Normal
Heat source OFF/ Boiler operation *3
IN5
TBI.1 5-6
—
Outdoor thermostat input *2
Standard operation
Heater operation/ Boiler operation *3
IN6
TBI.1 3-4
—
Room thermostat 2 input *1
Refer to SW3-1 in <5.1 DIP Switch Functions>.
IN7
TBI.1 1-2
—
Flow switch 3 input (Zone2)
Refer to SW3-3 in <5.1 DIP Switch Functions>.
IN8
TBI.3 1-2
—
Electric energy meter 1
*4
IN9
TBI.3 3-4
—
Electric energy meter 2
IN10 TBI.3 5-6
—
Heat meter
IN11 TBI.3 7-8
—
Smart grid ready input
*5
IN12 TBI.3 9-10
—
IN1A TBI.3 12-14
CN1A
Flow sensor input
*6
*1. Set the ON/OFF cycle time of the room thermostat for 10 minutes or more; otherwise the compressor may be damaged.
*2. If using outdoor thermostat for controlling operation of heaters, the lifetime of the heaters and related parts may be reduced.
*3. To turn on the boiler operation, use the main remote controller to select “Boiler” in “External input setting“ screen in the service menu.
*4. Connectable electric energy meter and heat meter
● Pulse type
Voltage free contact for 12VDC detection by FTC (TBI.3 1, 3 and 5 pin have a positive voltage.)
● Pulse duration
Minimum ON time: 40ms
Minimum OFF time: 100ms
● Possible unit of pulse
0.1 pulse/kWh
1
pulse/kWh
10
pulse/kWh
100 pulse/kWh
1000 pulse/kWh
Those values can be set by the main remote controller. (Refer to the menu tree in "7.2 Main remote controller".)
*5. As for the smart grid ready, refer to "4.9 Smart grid ready".
*6. Connectable flow sensor
● Power supply
5V DC
● Measuring range
5 to 100 L/min
Those values can be set by the main remote controller. (Refer to <Auxiliary setting> on Page 44.)
● Flow signal
0.5V (at minimum flow rate) to 3.5V (at maximum flow rate)
<Fig. 4.5.1>
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