Handbook
Ucontrol
type-lines PXDM
Date 06/04
TBL02_55-GB06/04
Part.-No. 00153239-GB
Page 11 / 105
4.2 Outdoor installation of devices in housing version (IP54)
Outdoor installation is possible under the following conditions:
¡
Do not switch the controller to off at temperatures below 0
°
C so that the losses
from the heat dissipated in the unit can prevent condensation. In other words, do
not switch off the leads supplying the power. The internal transformer for
generating the control voltage thus remains switched on. This generates sufficient
heat.
¡
The outside temperature may not fall below -20
°
C.
Installation must be protected from the effects of weather as much as possible,
including protection from direct sunlight (the maximum permissible ambient
temperature is 40
°
C,
F
Installation: Power derating for ambient temperatures over
40° C).
4.3 Temperature influences during commissioning
Avoid condensation in the controller and hence functional faults attributable to condensation by storing the controller at
room temperature!
4.4 Systems with current-operated circuit-breaker
Owing to possible leakage currents occurring when the device is switched on, it is
advisable to use short-time-delayed current-operated circuit-breakers. This prevents any
triggering by mistake.
Plants without neutral conductor connection
F
Electrical connections: Mains connection
Summary of Contents for Ucontrol PXDM Series
Page 80: ...Handbook Ucontrol type lines PXDM Date 06 04 TBL02_55 GB06 04 Part No 00153239 GB Page 80 105 ...
Page 92: ...Handbook Ucontrol type lines PXDM Date 06 04 TBL02_55 GB06 04 Part No 00153239 GB Page 92 105 ...
Page 96: ...Handbook Ucontrol type lines PXDM Date 06 04 TBL02_55 GB06 04 Part No 00153239 GB Page 96 105 ...
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