23
Connection of external sensors
3.3.3
A sensor-controlled automatic mode can be operated with an analogue 0-10 V-sensor-signal which is
generated by one or several sensors. The connection between the sensor module and the connection
terminal of the operating panel is made with the cable prescribed for the transmission of the sensor
signal.
Connection terminal operating panel
Wire cable sensor module
X.05
Wire 1 (sensor signal 0…10 V)
X.06
Wire 2 (GND)
Tab. 8: Terminal assignment connection analogue sensor signal
Connection external preheater battery
3.3.4
An optionally available electric preheater battery is connected to terminal X4b of the control board. The
power cable of the preheater battery is to be led through a cable bushing and to be fixated with a cable
gland for tension relief.
The maximum permitted power input to the preheater battery is 1,200 W!
Terminal X4b control board
Wire cable preheater battery
X4b.44
Wire 1 PE
X4b.45
Wire 2 Lvo
X4b.46
Wire 3 N
Tab. 9: Terminal assignment connection external preheater battery
Commissioning of the FOCUS
3.4
Operational readiness
3.4.1
Operational readiness is ensured if the requirements acc. to country-specific regulations
are met. For that purpose, cleanliness of the air duct material, the availability, correct
installation and operational readiness of the entire ventilation equipment provided for the
plant must be particularly ensured.
Check all safety-relevant parts and perform a functional test!
Adjusting the air volume flow
3.4.2
After having verified the operational readiness, the FOCUS can be commissioned as follows. The scaling
of the available air volume flow in relation to the position of the rotary knob is shown in chart 1. According
to the plant design the total outside air volume flow is to be laid out as nominal ventilation. This nominal
air volume flow should, according to chart 2, correspond to a rotary knob position of 4 to 6.
