Macurco DVP-120M — gas detection and ventilation control panel taking twelve analog 4-20 mA detectors plus up to 87 addressable Modbus detectors.
It runs exhaust fans in enclosed parking garages to the Uniform Building Code and OSHA 50 ppm CO requirements. Macurco calls it the Modbus-enabled version of the DVP-120: it keeps the twelve analog current-loop channels and adds three RS-485 channels of 29 sensors each, which need an MRS-485 adapter at each 6-Series detector. It is a gas detection panel, not a fire alarm control unit.
- Twelve analog 4-20 mA channels plus three RS-485 Modbus channels at 29 sensors each
- Three SPDT fan or alarm relays, 10 A, 120/240 VAC
- Power input 90 to 250 VAC, 1 A, 47 to 63 Hz, single phase
- Two 24 VDC drivers for external horn and strobe, 250 mA maximum
- Lockable NEMA 1 enclosure, 10.5 × 12.5 × 2 in., 6.5 lb; ETL listed, CAN/CSA-C22.2 No. 14-13
DVP-120B and DVP-120C are the BACnet MS/TP siblings: 99 addressable connections and no analog channels at all, the DVP-120C restricted to CO and NO2 detectors. MRS-485 adapters and HS horn strobes are ordered separately.
