wirsbo CoSy Assembly Instructions

Assembly instructions
Wirsbo CoSy External temperature sensors can be used for maximum
or minimum limitation of the fl oor temperature, regardless of the
room thermostat settings. The setting range is 20 - 45°C and the
maximum or minimum limitation is selected with a changeover
switch inside the thermostat.
The maximum limitation can be used, for example, to prevent a
sensitive fl oor covering from exposure to too high a temperature
where there is a high heat demand. The minimum limitation
can be used, for example, to keep a tile fl oor warm even when
there is no general demand for heat supply to the room. The
minimum limitation should not be set to a value higher than
the required room temperature.
The sensing element of the sensor should be located as close as
possible to the fl oor surface. To protect the sensor and simplify its
replacement, the entire sensor including the sensing element, can be
installed in an conduit. If the sensing element is also placed in the
conduit allowance must be made for the disadvantages of greater
inertia and lower precision.
Fig 1 Embedding in concrete
If embedded in concrete (see Fig. 1), the sensing element should
be installed directly underneath a tile. When installed in a
wooden suspended fl oor (see Fig. 2) the sensing element can be
positioned directly underneath the heat emission plate, close to
Wirsbo CoSy
External temperature sensor
the fl oor heating pipe, in a recess in the batten. The recess should
be made so deep that the sensing element is not deformed when
the heat emission plates and fl oor covering are installed, but so
that the sensing element is in contact with the plate.
Fig 2 Installation in loose panel
When the sensor is installed in fl oor heating chipboard (see Fig. 3)
both the cable and sensing element can be set into a groove
which is cut into the chipboard. In all cases, avoid crossing
the fl oor heating pipes.
Fig 3 Installation in fl oor heating chipboard
Note: Mark on the drawing where in the fl oor the
sensor has been installed.
May. 2002