REMEHA Gas 210 ECO Información técnica descargar pdf (Pagina 24)

GAS 210 ECO PRO

114494-190310

The boiler has several control, protection and regulation connec-

tion options. The standard control PCB (PCU-01) can for example

be expanded with:

• an optional 0 - 10 V control PCB (available as an accessory IF-01);

• and/or the optional expanded control/protection PCB (available as

an accessory SCU-SO1).

To install or access these PCBs, the plastic cap must be removed

from the control panel. The required external connections are

made on these (optional) PCBs. The various connection options

are detailed in the following sections.

8.3.1 Connection options of standard control unit

(PCU-01)

Connected on the standard control unit (PCU-01) is the safety unit

(SU) connected, which protects the boiler.

Mainson/of

Pump

OT BL RL

X11

X10

F1 1.6 AT

PCU-01

Pump

X9X11 X10

114492LTAL21H005e

fig. 10 Standard control PCB (PCU-01) with

safety unit (SU)

8.3.2 On/off control (OT)

The boiler is suitable for connection to a ‘volt free’ on/off controller.

Connect the controller to the On/off - OT terminals of terminal

strip X6 (not polarity sensitive).

8.3.3 Modulating controls (OT)

The boiler is set up for communication via the OpenTherm proto-

col. Modulating controllers can be connected.

Connection is made with a two-core cable to the On/off - OT ter-

minals of terminal strip X6 (it does not matter which wire is con-

nected to which cable clamp).

8.3.4 External interlock (BL)

The boiler has an external interlock switch, so that the boiler can

be shutdown in the event that this switch is not made. This input

can be used in combination with a flue gas thermostat (available

as an accessory). This input relates to the BL terminals of terminal

strip X6. Remove the wire bridge before using the input.

The input's behaviour depends on the parameter 33 setting:

1 = Normal shutdown;

2 = Shutdown without frost-protection (= default);

3 = Lock out.

8. Control and electrical connections

8.3 Electrical connection options

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