The Scb-10 Expansion Pcb - DeDietrich C 340 Series Installation And User Manual

High-efficiency floor-standing gas boiler with diematic evolution scb-01, diematic evolution scb-10

Table of Contents

5 Installation

Fig.48

0–10 V output connector

0-10

Fig.49

SCB-10 PCB

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1 Outdoor temperature sensor

2 Programmable and 0-10 V input

3 Room temperature sensor - circuit C

4 Room temperature sensor - circuit B

5 Room temperature sensor - circuit A

6 Domestic hot water tank pump

C 340 / C 640

The 0-10 contact can be used to connect a PWM system pump. The

speed of the pump is modulated based on the signal received from the

boiler. Depending on the make and type of pump, the pump can be

controlled by a 0–10 V or a PWM signal.

Connect the system pump controller to connector 0-10.

AD-3001305-01

5.8.4

The SCB-10 has the following features:

Expansion PCBs are automatically recognised by the control unit of the

boiler. If expansion PCBs are removed, the boiler will show an error code.

To resolve this error, an auto-detect must be carried out after removal.

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Connecting 0–10 V output

Select the type of signal that will be sent from the boiler using the

parameter EP029.

Select the type of signal that controls the pump using the parameter

EP028.

Caution

If possible, use the pump modulation signal. This provides the

most accurate pump control.

If the automatic burner unit does not support pump modulation,

the pump will behave as an on/off pump.