Related Manuals for Conspec Controls P2621-NO2/VC
Summary of Contents for Conspec Controls P2621-NO2/VC
- Page 1 Conspec Controls, Inc. P2621-NO2/VC Nitrogen Dioxide Ventilation Fan Controller Operations Manual Conspec Controls, Inc.: 1-800-487-8450...
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Page 2: System Description
(1 ppm) of NO2 are detected. The P2621-NO2/VC’s audible alarm sounds if the NO2 level remains at an elevated level (3 ppm) for more than 15 minutes to signal nearby persons to leave the area. The P2621- NO2/VC continually self-tests the internal electronic circuitry and the sensor, and signals if a fault is detected. -
Page 3: Location And Mounting
III) LOCATION & MOUNTING The P2621-NO2/VC can be used to monitor up to 10,000 square feet of undivided area. It can be used as a self-contained, stand-alone control or as part of a multi sensor Control system. If the airflow is not uniform or if the area to be monitored is unusual, then the area by each unit should be appropriately reduced. -
Page 4: Power Up & Testing
LCD display. After several minutes the LCD display will display the current Nitrogen Dioxide (NO2) reading in parts per million (ppm). NOTE: After the P2621-NO2/VC has been OFF, when power is restored to the unit, -FAN- will appear in the LCD display and the unit will run ventilation fan for several minutes to clear the air of accumulated Nitrogen Dioxide (NO2) and then return to normal operation. -
Page 5: Calibration Procedure
The proper application of the calibration gases is essential to the correct operation of the P2621-NO2/VC. Place the strap of the P1879-NO2 Calibration Kit over the P2621-NO2/VC so that the case hangs below the monitor. Use the supplied hex-key to loosen the tamper- proof screw in the lower left-hand corner of the P2621-NO2/VC’s door. - Page 6 3 digit LCD. Press Key “4" once to remove the prompt. *The LCD of the P2621-NO2/VC Monitor will display the 3 digit Analog to Digital NO2unt (ADC). The ADC has a possible range of 0 - 999 with typical values of “050"...
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Page 7: Sensor Replacement
OFF, using a voltmeter, measure the voltage between T1 and T2. The voltage should read close to 24 VAC. If it does not, the problem is in the power supply and not in the P2621-NO2/VC. If there is 24 VAC across the T1 and T2 terminals and... - Page 8 3. Fault Light Is ON Turn OFF the 24 VAC power to the P2621-NO2/VC then turn it ON. If power cycling does not remove the fault condition turn OFF the 24 VAC power and power to the ventilation fan Control system. Open the enclosure and check that the connector from the sensor is attached to the main board.
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Page 9: Field Wiring Diagram
VII) FIELD WIRING DIAGRAM Analog Output (Optional) Common ---------------------- TB1 (COM) ------- P2065 (J5 COM) 4-20mA Signal --------------- TB1 (SIG) -------- P2065 (J5 SIG) 15-30VDC -------------------- TB1 (+V) ---------- P2065 (J5 +V) NOTE: The standard Configuration for the P2065-1 includes a 110VAC power supply with an output of .7A @ 15VDC to power the monitor and options.