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Vaillant VRC 470F Manual

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Installation
Installation instructions VRC 470f 0020124645_00 11
4
4.4.2 Secure the wall-mounting base to the wall
> Mark the position on the wall. Take the eBUS line
route into account when doing so.
> Drill two holes of 6 mm diameter in accordance with
the mounting holes (3).
> Insert the wall plugs supplied.
> Insert the eBUS cable through one of the cable open-
ing (4).
> Use the screws supplied to secure the wall-mounting
base.
> Connect the eBUS cable to the terminals of the pin
header (¬Section5).
4.4.3 Fitting the radio receiver unit
> Carefully insert the radio receiver unit in the wall-
mounting base. Take care to ensure that the pin
header connector (5) on the wall-mounting base fits
in the connection provided on the radio receiver unit.
> Carefully press the radio receiver unit into the wall-
mounting base until the catches on the controller
audibly click into the sides of the wall-mounting base.
4.5 Fitting the outside temperature sensor/
transmitter
b
Caution!
Risk of material damage if fitted incor-
rectly!
Incorrect fitting can cause damage to the
device, e.g. caused by damp.
> Take care to fit the outside temperature
sensor/transmitter the right way up.
i
The outside temperature sensor/transmitter is
supplied with power by a solar cell. Therefore,
there is no need for battery replacement.
i
The outside temperature sensor/transmitter
should not be exposed to direct sunlight.
Fig.4.3 Removing the wall-mounting base
Proceed as follows:
> Mark the position on the wall.
> Remove the wall-mounting base from the outside
temperature sensor/transmitter.
… 11 …


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  • How can one test if a VR20 outside temp. sensor is working? If pressing the Red button on the rear of the module does not activate the flashing green light. is this an indication of faulty unit? The lens is clean. Solar sensor charging at around 2.1 volts. Battery is at 3volts. Submitted on 29-12-2021 at 16:45

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