Operation 6
0020209591_01 ecoTEC plus Installation and maintenance instructions 19
5.9.4 Installing the product in a moist
environment
Danger!
Risk of death from electric shock!
If you install the product in a room with high
levels of moisture, e.g. a bathroom, observe
the nationally recognised technical standards
for electrical installations. If you use the fact-
ory-installed connection cable, if installed,
with an earthed plug, there is a risk of death
from electric shock.
▶ Never use the factory-installed connection
cable with earthed plug when installing the
product in a moist environment.
▶ Connect the product using a fixed connec-
tion and a partition with a contact open-
ing of at least 3 mm (e.g. fuses or power
switches).
▶ Use a flexible line for the mains connec-
tion line, which is routed through the cable
duct into the product.
1. Open the electronics box. (→ Page 18)
2. Detach the plug from the PCB slot for the mains con-
nection (X1).
3. Unscrew the plug of the factory-installed mains connec-
tion cable, if installed.
4. Instead of the factory-installed mains connection cable,
if installed, use a suitable three-core mains connection
cable which complies with the relevant standards.
5. Carry out the wiring. (→ Page 18)
6. Close the electronics box.
7. Observe the flue-gas connection that is required on a
room-sealed air/flue gas installation. (→ Page 17)
5.9.5 Connecting controllers to the electronic
system
1. Install the controller if necessary.
2. Open the electronics box. (→ Page 18)
3. Carry out the wiring. (→ Page 18)
4. Observe the connection diagram in the appendix.
Conditions: Connecting a weather compensator or a room temperature
controller via eBUS
▶ Connect the controller to the eBUS connection.
▶ Bridge the 24 V = RT connection (X100 or X106), if there
is not already a bridge.
Conditions: Connecting a low-voltage controller (24 V)
▶ Remove the bridge and connect the controller to the
24 V = RT connection (X100 or X106).
Conditions: Connecting 230 volt controller
▶ Connect the switched live supply with the terminal
marked RT at X1 (beside the LNPE connections) then
remove the link at X100 (do NOT connect 230 volt to
any other terminal than the RT connection).
Conditions: Connecting a limit thermostat for underfloor heating
▶ Remove the bridge and connect the limit thermostat to
the Burner off connection.
5. Close the electronics box.
6. For multi-circuit controllers, change D.018 from Eco (in-
termittently operating pump) to Comfort (continuously
operating pump). (→ Page 27)
5.9.6 Connecting additional components
You can actuate an additional component with the aid of the
auxiliary relay that is installed, and you can actuate two other
components with the multi-functional module.
5.9.6.1 Using the auxiliary relay
1. Connect an additional component directly to the integ-
rated auxiliary relay using the grey plug on the PCB.
2. Carry out the wiring.
3. To start up the connected component, select the com-
ponent in diagnostics code D.026. (→ Page 27)
5.9.6.2 Using the VR 40 ("2 in 7" multi-functional
module)
1. Install the components in accordance with the respect-
ive instructions.
Conditions: Components connected to relay 1
▶ Activate D.027. (→ Page 27)
Conditions: Components connected to relay 2
▶ Activate D.028. (→ Page 27)
5.9.7 Actuating the circulation pump according
to requirements
1. Carry out the wiring.
2. Connect the supply line for the external button using
terminals 1 (0) and 6 (functional drawing) on the X41
edge connector, which is supplied with the controller.
3. Plug the edge connector into the PCB slot X41.
6 Operation
6.1 Operating concept
The operating concept and the read-off and setting facilities
of the operator level are described in the operating instruc-
tions.
An overview of the reading and setting options for the in-
staller level is included in the table in the appendix.
Installer level – Overview (→ Page 39)
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