Service pin
General purpose analog input
(0-5 VDC, 4-20mA, 10K thermistor)
Supply / Radiant / Zone / Occupancy / Discharge
Digital sensor (T1000, T500 or T200) /
Remote computer with Focus
Analog output (0-10 VDC) (max current: 40 mA)
Network communication
Digital output - Isolated Triac
Dry contact (24 VAC) (max current: 750 mA)
Power source of the controller
(24 VAC - Class 2)
Airflow Sensor (PL-VC2000-PI)
Airflow sensors are only included in the PL-VC2000-PI
models only. Adding an airflow sensor to the Prolon VC2000
lets it regulate the airflow as well as temperature in a zone,
independently of the static pressure variations of the system.
The default flow sensor has a range of 0 to 2 in H20
(0 to 500 Pa). Depending on the flow cross used, this
translates to roughly 0-3500 ft/min.