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Dry Contact for Alarm Signal
The M1000 has an analog input dedicated to an alarm signal. Please refer to Figure 7 to see how to
correctly connect it to analog input 8. To signal an alarm, the contact must be closed. This input
does not affect the sequences of the M1000, and is only used to inform the user through the
visualisation software or the digital interface
Figure 7: Connecting the alarm contact to the controller
Analog input 9 on the M1000 rooftop controller is dedicated to a static pressure sensor. By default, a
0-5 VDC signal is expected for the static pressure input. However, this can be modified using the
internal jumpers (see p.8). Please refer to Figure 8 for correct wiring.
info@prolon.net
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HEATPUMP HARDWARE GUIDE
Static Pressure
(+)
(-)
Static Pressure Sensor
Figure 8: Connecting pressure sensors
1-877-9PROLON
PL-M1000 SERIES
Alarm
TEL:(450) 973-7765 FAX: (450) 973-6186
13
Montréal
1989 rue Michelin Laval,
QC H7L 5B7
1-800-461-1381
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