![background image](http://html1.mh-extra.com/html/kaeser-kompressoren/hbpi-pr/hbpi-pr_installation-and-operating-manual_3172311042.webp)
Fig. 15 Pressure sensor
4.9.7 Option C19, H12
Thermostat
The thermostat controls the temperature within the sound enclosure.
It consists of a temperature sensor with a floating relay change-over contact.
The switching point is factory set to 140°F.
Fig. 16 Thermostat
4.9.8 Option F5
Filter pressure differential switch
The filter pressure differential switch monitors contamination of the intake filter.
The switch is triggered by pressure differential. Falling below or rising above the set value causes
the current flow to switch on, switch off or changeover according to how the switch is wired.
Fig. 17 Filter pressure differential switch
4
Design and Function
4.9
Options
32
Installation and Operating Manual Rotary lobe blower
HBPI pr
Number: 9_9572 28 USE