Technische Alternative CAN-EZ2, Manual

Page: 14 / 100

Installation and connection – Sensor connection
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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 -
ture influence). It is only suitable for operation in dry rooms. The sensor is also available as a
wireless version.
• 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.
Sensorleitungen
All sensor leads with a cross-section of 0.5 mm2 can be extended to up to 50 metres. With this lead
length and a PT1000 temperature sensor, the measuring error is approxi1 K. A correspond -
ingly larger cross-section is required for longer leads or a lesser measuring error. In order to prevent
measurement fluctuations and ensure perfect signal transmission, sensor leads must not be sub -
jected to external negative influences. When using non-screened cables, route sensor leads and 230
V cables either in separate cable conduits or with a minimum clearance of 5 cm. If screened cables
are used, the screen must be connected to the sensor earth.