Gas Detection Control Panel

Conventional Panel (DVP-120) Specifications

Building codes require that enclosed parking garages, warehouses, vehicle maintenance facilities and other facilities either have exhaust fans operate continuously, or have automatic Carbon Monoxide (CO) detection and exhaust fan control systems. The difference in fan operating time is 24 hours a day versus one to two hours. Energy savings are significant. The DVP-120 exhaust fan controller which, in conjunction with CM-6 Carbon Monoxide detectors or TX-6-ND Nitrogen Dioxide detectors or GT-6 Combustible detectors, provide automatic controls to ensure a safe environment in parking garages or maintenance facilities. The DVP-120 can control up to twelve gas detectors in any combination. The DVP-120 system is designed to meet all known specifications for safety in enclosed parking garages, including the Uniform Building Code and OSHA 50 ppm CO requirements.


  • No regular maintenance necessary
  • Money saving devices, both in energy costs and extended fan life
  • Clearly labelled Modular Connectors for easy hook up
  • Conduit holes already provided
  • Flexible configuration to meet any application
  • Each DVP-120 can control up to three zones
  • Fan settings are end user adjustable, to meet any specification
  • Driver circuits provided for horn and strobe alarm signals
  • Bright LEDs indicate system status including alarm and relay status
  • All Sensors are supervised; panel LCD indicates sensor status and individual gas levels
  • Power Input: 100 - 240Vac @ 1 Amp
  • Output Control Relays: 3
  • Relay Rating: 240Vac @ 16 Amps
  • CO Carbon Monoxide Transducer Range (CM-6): 0 - 250 ppm
  • NG Methane Transducer Range (GD-6): 0 - 50% LEL
  • NH3 Ammonia Transducer Range (TX-6-AM): 0 - 100 ppm
  • H2S Hydrogen Transducer Range (TX-6-HS): 0 - 50 ppm
  • NO2 Nitrogen Transducer Range (TX-6-ND): 0 - 20 ppm
  • Relay Turn-On Delay: 0 - 15 Minutes
  • Relay Turn-Off Delay: 0 - 15 Minutes
  • WeightL 6.5 lbs
  • Enclosure Type: Lockable NEMA 1
  • Size: 10" x 12" x 2"
  • Listing: UL 508A, LADBS

Addressable Panel (DVP-120M) Specifications

The DVP-120M exhaust fan controller provides automatic control to help maintain an acceptable environment in parking garages or other facilities. The DVP-120M system is designed to meet specifications for safety in enclosed parking garages, including the Uniform Building Code and OSHA 50ppm CO requirements. Using the Macurco MRS-485 Modbus adapter and 6-Series detectors, the DVP-120M can control up to 87 addressable gas detectors.


  • External keypad for user selection of the transducer/alarm display and setting the configuration
  • Externally visible LCD display showing the status of each transducer and relay
  • Three RS-485 digital input channels - 29 addressable sensors per channel
  • Externally visible system, alarm and relay status indicators
  • Compatible with all Macurco 6-Series gas detectors and MRS-485 adapter
  • Twelve analog (current loop) input channels
  • Three 10A, 240 VAC SPDT fan/alarm relays
  • Drivers for external Horn and Strobe
  • Fail safe operation can be implemented
  • Lockable NEMA 1 type enclosure
  • Modular input and output connectors
  • Up to three ventilation control zones can be defined
  • ETL Listed to UL 508A, CAN/CSA-C22.2 No. 14-13
  • Each zone can be controlled based on transducer signals and/or time of day
  • Power Input: 90 – 250 VAC, 1 Amp, 47 – 63 Hz, single phase
  • Size: 10.5” x 12.5” x 2.” (267 mm x 318 mm x 51 mm)
  • Weight: 6 ½ lb (2.9 kg)
  • Enclosure: NEMA 1 Type
  • Operating Temperature: 32 to 104°F (0° to 40°C )
  • Operating Humidity: 0% to 95% RH non-condensing
  • Relay Rating (3): SPDT, 120/240 VAC, 10 A resistive
  • LCD Display: 2 rows of 16 characters with backlight
  • Audible indicator: Internal buzzer, 90 dBA at 1ft
  • External Drivers (2): 24VDC, maximum 250 mA
  • Relay On Delay: 0 – 15 minutes in 1 second increments
  • Relay Off Delay: 0 – 15 minutes in 1 second increments
  • RS-485 operates in the Modbus RTU Transmission Mode
  • Status Indicators (LED): Power, ALARM/warning, Hush, Relay 1, Relay 2 & Relay 3

Gas Detection Control Panel
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  • Item #: DVP
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Price $1,082.00

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