Installation Instructions

Decommissioning
Installation instructions VRC 470f 0020124645_00 47
13
13 Decommissioning
e
Danger!
Risk of death from live connections!
When working in the control cabinet of the
boiler there is a risk of death from electric
shock. Continuous voltage is present on the
mains connection terminals, even if the main
switch is turned off!
> Switch the main switch off before working
on the control cabinet of the boiler.
> Disconnect the boiler from the mains
power by disconnecting the mains plug or
by de-energising the boiler via an isolating
device with a contact opening of at least
3mm (e. g. fuses or power switches).
> Secure the power supply against being
switched on again.
> Open the control cabinet only when the
appliance is disconnected from the power
source.
13.1 Decommissioning the controller
> Pull the controller upwards and off the wall-mounting
base.
> Remove the batteries.
> Remove the finishing panel from the wall-mounting
base by pulling the top edge of the panel away from
the wall-mounting base with your fingers.
> Unscrew the wall-mounting base from the wall.
> Plug the holes in the wall if necessary.
13.2 Decommissioning the outside temperature
sensor/transmitter
> Remove the outside temperature sensor/transmitter
(¬Section11.3.1).
> Unscrew the wall-mounting base from the wall.
> Plug the holes in the wall if necessary.
13.3 Decommissioning the radio receiver unit
If you want to replace or remove the heating system's
radio receiver unit, you must first shut down the boiler.
> To do this, follow the instructions in the boiler instruc-
tions.
> Ensure that the boiler is disconnected from the power
source.
The rest of the procedure depends on where the radio
receiver unit is installed.
For wall-mounting:
2
3
1
Fig.13.1 Removing radio receiver unit
> Insert a screwdriver into the slot (1) on the wall-
mounting base (2).
> Carefully lever the radio receiver unit (3) off the wall-
mounting base (2).
> Disconnect the eBUS cable from the pin header con-
nector in the wall-mounting base of the radio receiver
unit.
> Unfasten the eBUS cable from the terminal strip on
the boiler.
> Unscrew the wall-mounting base from the wall.
> Plug the holes in the wall if necessary.
For installation in the boiler:
> If necessary, open the front cover on the boiler.
> Carefully remove the radio receiver unit from the
boiler switch box.
> If necessary, close the front cover on the boiler.