Raychem TA, Operation And Users Instructions

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3. Mounting and installation
Thermostat
TA is intended for flush mounting in a standard 65 mm
wallbox. It should be positioned approximately 1,5 metres
above the floor, protected from direct sunlight and draughts.
All electrical conduits passing into the thermostat box that
contain cables must be sealed to protect the thermostat
against any draughts, e.g. with a piece of insulation in the
conduit outlet.
TA can also be mounted in an external wall box. If the
thermostat will be mounted on a rough wall surface, e.g.
bricks, put a string of silicon glue under the top frame.
Assembly frame and front can be exchanged by pushing
with a screw driver on two knobs, placed on the sides of the
thermostat. (Fig. 2)
Floor sensor
The floor sensor should be installed in a separate flexible
conduit/hose for easy replacement. For best control
performance, position the floor sensor between two heating
cables as close as possible to the top floor surface. Do not
position the floor sensor tip closer than 3 cm to the heating
cable.
The floor sensor cable can be extended to 100 m with a
separate standard installation cable 2 x 1.5 mm
2
(min.)
(230VAC). In order to avoid signal disturbance resulting
in a possible malfunctioning of the thermostat, the sensor
should not be installed in a conduit together with other
power carrying cables.
Connection of the thermostat
The thermostat must be connected to 230VAC according to
the circuit diagrams. When connecting multiple heaters to
the thermostat where the combined total load is above 13A,
you are required to use a contactor or switchgear.
If the protective earth terminal, (PE) on the thermostat is
used, the incoming power cable to the heating cable shall be
connected to the common earth terminal on the thermostat,
otherwise a separate terminal connection block (not
included) must be used.