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)
CN22
(BLU)
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
1
2
3
4
5
6
8
1
6
1
2
4
6
CNBH
(WHT)
CNBC
(GRY)
1
1
3
1
2
1
2
1
2
CNBHT
(BLK)
1
3
7
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
19
System Set Up
5
EN
5.2 Connecting inputs/outputs
When the wires are wired to adjacent terminals
use ring terminals and insulate the wires.
<Figure 5.2.1>
FTC
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
Thermistor inputs
Name Terminal block Connector Item
Optional part model
TH1
—
CN20
Thermistor (Room temp.) (Option)
PAC-SE41TS-E
TH2
—
CN21
Thermistor (Ref. liquid temp.)
—
THW1
—
CNW12 1-2 Thermistor (Flow water temp.)
—
THW2
—
CNW12 3-4 Thermistor (Return water temp.)
—
THW5
—
CNW5
Thermistor (DHW tank water temp.) (Option) *1
PAC-TH011TK-E (5 m) / PAC-TH011TKL-E (30 m)
THW6 TBI.2 3-4
—
Thermistor (Zone1 flow water temp.) (Option) *1
PAC-TH011-E
THW7 TBI.2 5-6
—
Thermistor (Zone1 return water temp.) (Option) *1
THW8 TBI.2 7-8
—
Thermistor (Zone2 flow water temp.) (Option) *1
PAC-TH011-E
THW9 TBI.2 9-10
—
Thermistor (Zone2 return water temp.) (Option) *1
THWB1 TBI.2 11-12
—
Thermistor (Boiler flow water temp.) (Option) *1
PAC-TH011HT-E
THWB2 TBI.2 13-14
—
Thermistor (Boiler return water temp.) (Option) *1
Ensure to wire thermistor wirings away from the power line and/or OUT1 to 15 wirings.
*1. The maximum length of the thermistor wiring is 30 m.
When the wires are wired to adjacent terminals, use ring terminals and insulate the wires.
The length of the optional thermistors are 5 m. If you need to splice and extend the wirings, following points must be carried out.
1) Connect the wirings by soldering.
2) Insulate each connecting point against dust and water.
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
—
—
*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 pins 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 "5.10 Main remote controller".)
*5. As for the smart grid ready, refer to "5.6 Smart grid ready".
