Bedienungsanleitung Worcester-Bosch GB162-80 (Seite 27 von 72) (Englisch)

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Installation

6720813171 (2016/05) 27

Fig. 42 Terminal strip connections

[1] Room controller RC and EMS bus (connection colour orange)

[2] Outdoor-temperature sensor (connection colour blue)

[3] Connection terminal for potential free heat demand (connection

colour green)

[4] DHW temperature sensor (connection colour grey)

[5] External switch contact, potential free, e. g. for floor heating

(connection colour red) (thermal protection)

[6] Connection for external three-way valve

[7] External heating pump 230 V (connection colour green) (for use

with non Worcester pump group)

[8] DHW pump 230 V (connection colour grey)

[9] DHW Circulation pump 230 V (connection colour lilac)

[10] Mains connection 230 V AC (connection colour white)

General control connection

The following controls can be connected to the boiler.

• Control with contact for potential free heat demand

• RC25, RC35 room controller

• 4121, 4122, 4323 cascade controller

• Error reporting module EM10, 0 – 10 V input (can be used to convert

a 0 – 10 V signal to a modulating signal).

Connecting and installing a modulating control (room controller)

Fig. 43 Terminal strip – RC room controller and WA potential-free heat

demand

Installing an RC35 room controller as an outdoor temperature-

dependant control in the boiler

For outdoor temperature-dependant control operation only: it is

possible to install the room controller (e.g. RC35) in the boiler. In this

case, the controller does not have to be connected to the terminal strip

afterwards. If you would like to use this room controller for room

temperature-controlled operation, the room controller must be installed

in a living room.

▶ Push the arrow on the control panel cover to open ( fig. 44).

Fig. 44 Opening the control panel

▶ Remove the cover [1].

▶ Install the RC35 in the slot [2].

Fig. 45 Remove the cover and install the room controller in the boiler

(only for outdoor temperature-dependant operation)

Installing and connecting other controllers outside the boiler

▶ Install the controller as described in the relevant installation

instructions.

▶ Connect a RC25 or RC35 room controller or a 4121, 4122 or 4323

cascade controller to the orange RC terminal using a 2-core cable of

0.75 mm².

Fig. 46 Terminal strip – Room controller RC and EMS bus (connection

colour orange)

It is not possible to connect more than one room

controller ( fig. 43).

PK PS PZ

Mains

230 V

RC WA EV

FA FW DWV

6 720 648 726-042.1TD

9876

54321

RC WA

6 720 648 726-043.1TD

If you install the room controller (e.g. RC35) in the

boiler, only outdoor temperature-controlled operation is

possible. See the room controller user manual for further

information.

This connection is reverse-proof. This means that it does

not matter in which order the wires are connected.

6 720 648 726-044.1TD

6 720 648 726-045.1TD

6 720 648 726-046.1TD

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