Manual Remeha Quinta Ace 160 - T Control (page 30 of 76) (English)

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5.5.5 The SCB-01 expansion PCB

The SCB-01 has the following features:

Two potential free contacts for status notifications

0–10 V output connection for a PWM system pump

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.

Connecting status notifications

The two potential-free contacts, Status, can be configured as required.

Depending on the setting, a particular status can be transmitted by the

boiler.

Connect a relais as follows:

Nc Normally closed contact. Contact will open when status occurs.

CMain contact.

No Normally opened contact. Contact will close when status occurs.

Select the desired status notification (setting) using parameter EP018 and

EP019.

Connecting 0–10 V output

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.

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.

Fig.35 SCB-01 PCB

AD-3001514-01

NoCNc

Status

NoCNc

Status

0-10

Fig.36 Status notifications

AD-3001312-01

C No

Status A

C No

Status B

Fig.37 0–10 V output connector

AD-3001305-01

0-10

5 Installation

30 7701838 - v.09 - 10122021

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Remeha Quinta Ace 160 - T Control Manual

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