Vaillant VRT 240f Mode D'emploi page 17

GB
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Indicator light ON - Heating demand (boiler
is in operation)
Indicator light flashing - Heating demand
manual operation
Indicator light OFF - No Heating demand
(boiler is out of operation)
Short flash of the indicator light-
receive a radiogram
In case of an interference, the operation can be
switched from automatical into manual operation,
please press the button
operation mode of the boiler (ON or OFF), press
the button
Until the next signal is received from the room ter-
mostat, the boiler remains in operation (not cur-
rently available in the WC).
Connect a remote-control switch
The remote-control switch output is connected on
terminal TEL (see page 108).
Please note the installations instructions of the
remote-control switch.
There is a danger of fatal injury from tou-
ching live components. Install the roomt-
hermostat on the wall before connecting
the remote control switch.
14
again.
. For changing the
VRT 240f