Connecting Inputs/Outputs; Signal Inputs; Thermistor Inputs - Mitsubishi Electric EHSC series Installationshandbuch

5
System Set Up

5.2 Connecting inputs/outputs

TBO.1
1
2
1
3
CNP1
4 (WH)
3
5
6
1
CNP4
TBO.2
1 (RD)
3
2
SW5
3
4
5
1
6
CNV1
3
TBO.3
1 (WH)
5 SW4
2
3
4
5
6
7
SW3
8
TBO.4
1
2
3
4
5 SW2
6
7
8
1
CNIH
(OG)
3
1 1
SW1
CNBC CNBHT
(GY) (BK)
en 3 3
1
3
CNBH
(WH)
5
7
8 7 6 5 4 3 2 1 8 7 6 5 4 3 2 1
TBI.1 TBI.2
<Figure 5.2.1>

Signal inputs

Name Terminal block Connector Item
IN1 TBI.1 7-8 —
IN2 TBI.1 5-6 —
IN3 TBI.1 3-4 —
IN4 TBI.1 1-2 —
IN5 TBI.2 7-8 —
IN6 TBI.2 5-6 —
IN7 TBI.2 3-4 —
IN8 TBI.3 7-8 —
IN9 TBI.3 5-6 —
IN10 TBI.2 1-2 —
IN11 TBI.3 3-4 —
IN12 TBI.3 1-2 —
INA1 TBI.4 1-3 CN1A
*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
● Pulse duration
● Possible unit of pulse
Those values can be set by the main remote controller. (Refer to the menu tree in " Main remote controller".)
*5. As for the smart grid ready, refer to website manual.

Thermistor inputs

Name Terminal block Connector
TH1 — CN20
TH2 — CN21
THW1 — CNW12 1-2 Thermistor (Flow water temp.)
THW2 — CNW12 3-4 Thermistor (Return water temp.)
THW5B — CNW5 3-4
THW6 TBI.5 7-8
THW7 TBI.5 5-6
THW8 TBI.5 3-4
THW9 TBI.5 1-2
THW10 TBI.6 5-6
THWB1 TBI.6 7-8
Ensure to wire thermistor wirings away from the power line and/or OUT1 to 16 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.
19
1
CN01
3
(BK)
5
F2 F1
1
1
CN3C
(BU)
3
LED1
1
CNPWM
(WH)
3
8
1
1
CN851
(BK)
8
6
1
1
CNRF
(WH)
LED2
5
1
CN105
8
(RD)
1 LED3
5
1
CNIT
(BU)
5
8
1
CN22 1
(BU)
2
1
SW6
LED4
CN108
5
8
TAB1
CN401 CN1A CNW5 CNW12 CN21 CN20
(WH) (WH) (BU) (RD) (YE) (RD)
1 1 1 1
1
1
2
3
4
4 4 4
8 7 6 5 4 3 2 1 8 7 6 5 4 3 2 1 8 7 6 5 4 3 2 1 8 7 6 5 4 3 2 1
TBI.6
TBI.3 TBI.4 TBI.5
Room thermostat 1 input *1
Flow switch 1 input
Flow switch 2 input (Zone1)
Demand control input
Outdoor thermostat input *2
Room thermostat 2 input *1
Flow switch 3 input (Zone2)
Electric energy meter 1
Electric energy meter 2
Heat meter
Smart grid ready input
Flow sensor
Voltage free contact for 12 V DC detection by FTC (TBI.2 1 pin, TBI.3 5 and 7 pins have a positive voltage.)
Minimum ON time: 40 ms
Minimum OFF time: 100 ms
0.1 pulse/kWh 1 pulse/kWh
100 pulse/kWh 1000 pulse/kWh
Item
Thermistor (Room temp.) (Option)
Thermistor (Ref. liquid temp.)
Thermistor (DHW tank water temp.) (Option) *1
— Thermistor (Zone1 flow water temp.) (Option) *1
— Thermistor (Zone1 return water temp.) (Option) *1
— Thermistor (Zone2 flow water temp.) (Option) *1
— Thermistor (Zone2 return water temp.) (Option) *1
— Thermistor (Mixing tank water temp.)(Option) *1
— Thermistor (Boiler flow water temp.) (Option) *1
Wiring specification and local supply parts
Item Name
Signal input Signal input
function wire
Switch
Note:
Stranded wire should be processed with insulation-covered bar terminal
(DIN46228-4 standard compatible type).
OFF (Open) ON (Short)
Refer to SW2-1 in <5.1 DIP Switch Functions>.
Refer to SW2-2 in <5.1 DIP Switch Functions>.
Refer to SW3-2 in <5.1 DIP Switch Functions>.
Normal Heat source OFF/ Boiler operation *3
Standard operation Heater operation/ Boiler operation *3
Refer to SW3-1 in <5.1 DIP Switch Functions>.
Refer to SW3-2 in <5.1 DIP Switch Functions>.
*4
*5
—
10 pulse/kWh
Optional part model
PAC-SE41TS-E
PAC-TH011TK2-E(5 m)/ PAC-TH011TKL2-E(30 m)
PAC-TH011-E
PAC-TH011-E
PAC-TH012HT-E(5 m)/ PAC-TH012HTL-E(30 m)
Model and specifications
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
Non-voltage "a" contact signals
Remote switch: minimum applicable load 12 V DC, 1 mA
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