- 4 -
II - INSTALLATION
1 - RECOMMENDATIONS
- The room sensor QAA73 must be fitted in the
main reference room in the building (e.g.: liv-
ing room). This room must be heated by the
network from the boiler and must not contain
any other regulation sysems (e.g. thermostat
cocks).
If this is not the case, the setting 75
"influence of the room" must be deactivated
(Section 4.2 - page 11 - chapter III - USING /
SETTINGS).
- It must be fitted to the wall at approximately
1.5 m from the floor and away from any sour-
ce of heat (radiator, suns rays, lamps, televi-
sion, etc.) or cold.
- It must not be covered by a curtain or placed
inside furniture.
A standard 2 x 1.5 mm² cable must
be used. Maximum length of cable
: L = 50 m.
The cable connecting the sensor to
the LMU management unit mut not
be laid in parallel or in the same ca-
bleway as the 230 V electrical ca-
bles (minimum distance of 30 cm is
recommended).
The best protection against distur-
bances is provided by a shielded
two-core cable.
In the respective buildings, the two
ends of the shielded cable must be
connected to a reference potential
(building ground).
2 - MOUNTING THE ROOM SENSOR AND ACCESSORIES
Refer to the mounting instructions on the QAA 73 packaging
!
22
8
4Z36
a
22
8
4Z34
a
22
8
4Z
3
3a
22
84
Z
3
5a
Open the sensor
from underneath
and move the base
from the facade.
Fix the base to the
wall using the
screws.
Run the bus cable
through the base ope-
ning and connect ter-
minals 1 and 2.
Replace the sensor
facade on the top of
the base and close
the sensor.