ELECTRA | FAN COILS CATALOG 2024

190993 – Controller Panel NEPTRONIC 3PH(BACNET/MODBUS) for On/Off or Proportional Cooling Valve & 3 Level Heater

DS1 3&4 In Heating Mode

DS1 1&2 1

Fan Type

3 4 Voltage Range OFF OFF 3.0V to 10.0V OFF ON 3.0V to 8.0V ON OFF 3.0V to 6.0V ON ON 3.0V to 5.0V In Cooling Mode 3 4 Voltage Range OFF OFF 2.5V to 10.0V OFF ON 2.5V to 8.0V ON OFF 2.5V to 6.0V ON ON 2.5V to 5.0V

OFF AC Fan ON ECM Fan 2 OFF BACnet ON Modbus

TDF

Network Mode

COM PWR DATA

1 2 3 4 5 6 7

DS2 DIP Switch The 8 DIP switches

A+ B

represent a binary logic to calculate the MAC address. Default = all OFF

Optional: connect to enable service port

PWR STATUS

4 3 2 1

8 7 6 5 4 3 2 1

ON

ON

24Vac COM COM BUS

DS2

DS1

1 2 3 3 1 2

H-L3

2

TB1

TB9

(DO4)

380 VAC

L3

1 2 L3 H-L2

To other BACnet/Modbus device

IN B IN A+

JP1

TB2

380 VAC

(DO3)

TB10

L2

1 L2 2 1 H-L1

COM

TB3 (DO2)

JP3

380 VAC

TI1 TI2

L1

L1

6 7 8 2 5 3 4 1

Heater Coils

TO1

3 2 1 Neutral

COM

P2

TO2

TB4

TB11

M

TI3 TI4

N

P1

TO3

Modulating Cooling Valve 0-10Vdc COM 24Vac

A M

COM

Nh

4 3 2 1

TO4

Nh

JP4

TB5

AO1 AO2 COM AO3 AO4

1

Nh

2 3 4 5

TB12

P1 P2

Fuse 10A F1

External Temperature Sensor (10kΩ, Type 3)

High temperature cut-out (by others)

AI1

1 2 3

TB13

COM

1 2

On/Off Valve

AI2 AI3

3 1 2 4 5 3 1 2 4 5

COM Heat/Cool

COM AI4

2 1 2 1 FAN LOW FAN MED FAN HIGH NEUTRAL 4 3 2 1 4 3 2 1 Ground

Modulating Heating Valve 0-10Vdc COM 24Vac

TB6 (DO1)

TB14

AI5 AI6

3-Speed Fan

DI1

0

COM DI2

TB7

TB15

DI3 DI4

EC Fan (optional)

1 2 1 2 1 2

TB16

TB8

EC Motor Power (optional)

0-10Vdc COM 12Vdc

COM 24VAC/6VA

TB17

0

12VDC/100mA COM

TB18

EF0B-LE1 Wiring Diagram - 3 Phase

Firmware Revision: V1.01

2020-08-19

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