Saunier Duval exa control 7 RADIO Mode D'emploi page 11

Installation
This system MUST be fitted by a qualified and
approved installation engineer, proceeding as
shown in the illustrations on pages 112 to 114.
The relevant safety guidelines should be followed
at all times.
There is a danger of fatal injury from
touching live components. Always shut off
the power supply to the system (and
ensure it cannot be reconnected) BEFORE
carrying out installation or maintenance
work.
Note that we will accept no liability whatsoever for
injury or damage resulting from failure to observe
these instructions. This condition applies especially
to incorrect wiring and/or defective mechanical
installation.
Function of the receiver
The receiver is equiped with three indicator lights.
The lights indicate the following operating states:
OK Indicator light ON - receiver in operation
Indicator light OFF - receiver fails to operate
exacontrol 7 radio
GB
13