29
4.2.1 Location of Room, Humidity Sensor and Air Sensor
The requirement for the correct positioning room sensors cannot be
overstated. Care must be taken to ensure the sensors are located;
1. In a position with good air circulation at the ambient temperature
preferably on an internal wall at a height of 1.6 metres from floor
level.
2. The sensor must not be positioned in draughts, above a heat
source or where the temperature will be influenced by localised
heat gains from direct sunlight, water pipes or appliances.
3. If fixed to a studded wall the cable exit holes should be sealed
to avoid draughts.
4. The sensor must be mounted to a vibration free surface.
Humidity sensor should not be positioned where short term
high humidity is possible e.g. kitchen, bathrooms etc.
Location of the REHAU BA Master Controller/Add On Module
The REHAU BA unit should be installed in a suitable location
leaving room to work on the controller. The area should also be
clean, dry location mounted on solid vibration free structure within
0.8 metre above the floor heating manifold. The REHAU BA Master
Controller can be located within REHAU manifold cabinets.
contRol SYStEM FIRSt FIx
PoSItIonIng tHE BA MAStER contRollER RooM SEnSoRS
And REMotE AIR / FlooR SEnSoRS
4.0
4.2
20. Positioning of room sensor
4.2.2 Positioning the Remote Air Sensor
The remote air sensor is supplied fitted into a standard electrical switch
blanking plate (White, Brass or Stainless Steel). If required, the sensor
can be removed from the supplied mounting and fitted into any surface.
Required cable size is same, 0.5mm
2
from the remote air sensor to TM
sensor position.
Unlike the REHAU TD floor sensor the remote air sensor is only
fitted when required and can only be used with the REHAU TM
sensor
4.2.3 Positioning the Floor Sensor
The floor sensor should be positioned where it can detect the true
temperature of the floor and always be within the heated area of the
controlled room.
For easy replacement of the sensor it is recommended that the sensor
be placed within a screed/concrete but level with the surface. The
sensor can be placed within a 10mm copper sleeve (not supplied) to aid
the removal of the sensor. This position will also give a true reflection of
the floor surface temperature.
Screed
+
+
To Controller
Floor Sensor
THERMOSTAT
10 Cu Tube
max.
450 mm
Timber Floor
21. Positioning of floor sensor
