SR1-K-3 (BESF/BESB) - exhausto.de

3000628-2006-04-26.fm Usage
1. Usage
SR1-K-3 … used for EXHAUSTO fans BESF and BESB with motor power relay (MPR).
Operation It is possible to run two-speed operation controlled by an external timer or a similar
device.
If the motor overheats, the automatic system box must be reset manually.
2. Description
The control system consists of a control panel and an automatic system box:
Control panel The control panel is used to start and stop the fan, and to set the fan speed for normal
operation. It features indicator lights for operation, overheated motor warning and
minimum speed setting. The panel is supplied with low-voltage current from the
automatic system box.
Automatic system
box
Control panel
Automatic system
box
EXH AUSTO
The automatic system box contains a safety function that protects the motor against
overheating, and a system for setting the fan speed via an external clock function or a
similar device. The safety function that protects the motor against overheating consists
of a thermal cut-out in the motor, which is linked to the automatic system box. When an
error signal is sent from the thermal cut-out, the power supply to the motor is cut and the
warning light is illuminated. To reset, switch off the function circuit breaker and then
switch it on again.
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Function circuit breaker
for manual reset
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