1
2
CN108
CN01
(BK)
1
3
CN3C
(BU)
1
3
CNPWM
(WH)
1
8
CN851
(BK)
1
5
CNRF
(WH)
1
5
CN105
(RD)
1
5
CNIT
(BU)
1
2
CN20
(RD)
1
3
CN21
(YE)
1
4
CNW12
(RD)
CNW5
(BU)
1
4
CN1A
(WH)
TBI.1
LED1
LED2
LED3
LED4
TAB1
1
8
1
8
1
8
1
8
1
6
SW1
SW2
SW3
SW4
SW5
F1
F2
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
7
8
1
3
1
7
1
3
1
3
CNBC
(GY)
CNBH
(WH)
CNBHT
(
BK)
CNIH
(
OG)
CNV1
(WH)
CNP4
(RD)
CNP1
(WH)
TBO.1
TBO.2
TBO.3
.
TBO.4
.
1
5
3
1
5
3
1
3
1
3
3
5
TBI.2
TBI.3
TBI.4
TBI.5
TBI.6
1
2
3
4
5
6
7
8
1
2
3
4
5
6
7
8
1
2
3
4
5
6
7
8
1
2
3
4
5
6
7
8
1
2
3
4
5
6
7
8
1
2
3
4
5
6
7
8
1
4
1
5
SW6
CN22
(BU)
13
System Set Up
5
en
5.2 Connecting inputs/outputs
<Figure 5.2.1>
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 0.52 mm²
Solid wire: ø0.4 mm to ø0.8 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 7-8
—
Room thermostat 1 input *1
Refer to SW2-1 in <5.1 DIP Switch Functions>.
IN4
TBI.1 1-2
—
Demand control input
Normal
Heat source OFF
IN5
TBI.2 7-8
—
Outdoor thermostat input *2
Standard operation
Heater operation
IN8
TBI.3 7-8
—
Electric energy meter 1
*3
IN9
TBI.3 5-6
—
Electric energy meter 2
IN10 TBI.2 1-2
—
Heat meter
INA1 TBI.4 1-3
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. Connectable electric energy meter and heat meter
● Pulse type
Voltage free contact for 12V DC detection by FTC (TBI.2 1 pin, TBI.3 5 and 7 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 " Main remote controller".)
Note:
Stranded wire should be processed with insulation-covered bar terminal (DIN46228-4 standard compatible type).
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.)
—