LAYOUT AND FUNCTION
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LAYOUT AND FUNCTION
General information on heating
The conductor system is heated by means of a heating conductor which is drawn into the cavity of the conduc-
tor rail profile. The heating cable and the length of the heating circuit are designed for a heating output of be-
tween 15 - 25 W/m. The supply voltage is 230V, 400V (see order confirmation or system-specific installation
plan). In exceptional cases, e.g. if the heating length is short, the power is supplied by a transformer with the
appropriate secondary voltage. The heating conductor sections are supplied 1 m longer than the conductor
rail length in order to make installation easier.
A heating circuit both starts and ends in a heating conductor feed terminal by connecting the thermistor to the
PTC thermistor. The PTC thermistor is then installed up to the heating conductor control. Within the heating
circuit it may be necessary to connect the individual heating conductors (cross-pole). A PTC thermistor bridge
must be inserted at this point. For this purpose, the heating conductor (heating wire) is reconnected to the PTC
thermistor (H07RNF) in one heating conductor feed terminal, and fed in again on the other conductor rail sec-
tion according to the same principle.
NOTICE!
►
With the U15, the expansion sections cannot be heated and must therefore be
bridged
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Supply lines from the heating feed terminal to the connection box/heating conduc-
tor feed terminal must be supplied and installed by the customer.
CAUTION!
Risk of damage!
The heating system may only be switched on if the temperature is below +5°C. The
length of the heating circuit may not be shortened arbitrarily to prevent the conductor
rail from becoming too hot or too cold. Too much heat destroys the insulation profile.
If the temperature is too low, the thawing temperature will not be reached. The same
applies to a voltage other than the intended voltage or a different type of heating ca-
ble.
If conductor systems are equipped with isolating sections, these may not be bridged with heating conductors!
The heating sections are to be installed in such a way that they end at the isolating sections. Heating conduc-
tors may also be used in maintenance areas, in which case the heating conductors must also be switched off
when the maintenance area is switched off.
1 Strain relief
2 Connection thermistor/PTC thermistor
3 UEH housing
4 PTC thermistor bridge
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