Tekmar 275 Boiler Control Manual de usuario descargar pdf (Pagina 24)

Non-Powered Input Connections Terminals 1 - 6

tN4

Terminals 1 and 2 provide a tN4 connection for tN4 devices

on the tN4 bus. Connect terminals 1 (tN4) and 2 (Com) to

the corresponding terminals on the tN4 devices that are

to be connected.

Note: The connection is polarity sensitive. Ensure that

terminal 1 (tN4) is connected to the tN4 terminal on the tN4

device and that terminal 2 (C) is connect to the C terminal

on the tN4 device.

Outdoor Sensor (tekmar 070)

Connect the two wires from the Outdoor Sensor 070

to the Com and Out (2 and 3) terminals. The outdoor

sensor is used by the control to measure the outdoor air

temperature.

Note: If an Outdoor Sensor 070 is connected to a

tekmarNet

4 thermostat in the system, it is not required

to be connected to the control.

Boiler Supply Sensor (tekmar 082)

Connect the two wires from the Boiler Supply Sensor 082

to the Com and Boil (5 and 4) terminals. The Boiler Supply

Sensor is used by the control to measure the boiler supply

water temperature.

DHW or Boiler Return Sensor (tekmar 082)

Connect the two wires from the DHW Sensor 082 to the

Com and BRet / DHW (5 and 6) terminals. The DHW

Sensor is used by the control to measure the DHW water

temperature or the DHW Exchange Supply Temperature.

Connect the two wires from the Boiler Return Sensor 082

to the Com and BRet / DHW (5 and 6) terminals. The Boiler

Return Sensor is used by the control to measure the boiler

return temperature.

ComtN4

tN4

Device

ComtN4

OutCom

Outdoor

Sensor

070

DHW Sensor 082

Boiler Return Sensor 082

DHW

BRet/Com

Sup

ComBoil

Boiler Supply Sensor 082

Powered Output Connections Terminals 23 - 26

Primary Pump P1

The Prim P1 output on terminal (24) is a powered output.

When the relay in the control closes, 115 V (ac) is provided

to the Prim P1 terminal (24) from the Power L terminal (25).

To operate the primary pump P1, connect one side of the

primary pump circuit to terminal (24) and the second side

of the pump circuit to the neutral (Power N) side of the 115

V (ac) power supply.

Primary Pump P2

The DHW / P2 output on terminal (23) is a powered output.

When the relay in the control closes, 115 V (ac) is provided

to the DHW / P2 terminal (23) from the Power L terminal

(25). To operate the primary pump P2, connect one side

of the primary pump circuit to terminal (23) and the second

side of the pump circuit to the neutral (Power N) side of the

115 V (ac) power supply.

Pump

L & N

23 24 25 26

DHWPrim Power

P2 P1 L N

Pump

L & N

24 25 26

Prim Power

P1 L N

Primary

Pump

Backup

Primary

Pump

DHW

Pump

1 2 ... 19 20 21 22 23 24 25 26 27 28 29 ... 47 48

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Tekmar 275 Boiler Control Manual de usuario Pagina 24

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