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Room sensor:
This sensor is intended for installation in the living space (reference room). Do not
install the room sensor near a heat source or window. By simply replugging a jumper inside the
sensor, each room sensor can also be used exclusively as a remote adjuster (no room tempera
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ture influence). It is only suitable for operation in dry rooms. The sensor is also available as a
wireless version.
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Outside temperature sensor:
This sensor is installed on the coldest wall (usually facing north)
some two meters above the ground. Avoid temperature influences from nearby air shafts, open
windows, cable ways, etc. It must not be subjected to direct insolation.
Electrical connection
This must only be carried out by a qualified electrician in accordance with the relevant local regula
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tions.
Note:
In line with regulations, the system must be equipped with protection against lightning (surge
arrester). Sensor failures due to thunderstorms and static electricity are usually the result of missing
or incorrect earthing or missing surge protection.
Caution:
Only work inside the module when the power supply is at zero volt. Assembling the device
with the power connected may result in damage.
Connect all sensors and pumps/valves as they are numbered in the respective program.
In the mains voltage range, fine wire cross-sections of 0.75 - 1.5 mm² are recommended, except for
the supply cable.
A terminal strip is provided in the 230 V terminal box for connection of the earth conductor (PE). All
cables can be fixed with a locking clamp (= strain relief) immediately after termination. Subsequently,
side cutters are required to remove the locking clamps; therefore, more clamps than necessary are
provided.