MVR-300 Leak Detection System

Gas Detection for Refrigerants in Occupied Spaces

  • Fits in standard 3-gang electrical boxes for easy installation (not suitable for electrical junction boxes)
  • Low profile / flush mount for aesthetically non-intrusive appearance
  • Two relays and Modbus Communications for notifying building management & initiate counter measures
  • Alarm options (LED, buzzer, two levels, configurable delay and fail-safe) to alert occupants and remotely inform building management of alarm location for rapid response as required
  • Refrigerant specific sensors for enhanced safety
  • Self diagnostics and simple field calibration for easy maintenance
  • Unique plug-in field replaceable pre-calibrated sensor for low cost of ownership

Product Information

The MVR-300™ VRF Refrigerant Gas Detector is specifically designed to provide continuous monitoring for refrigerants associated with high-efficiency, high volume refrigerant cooling and heating systems, such as VRF / VRV (Variable Refrigerant Flow/Variable Refrigerant Volume) systems. Typical applications include hotels, dormitories, hospitals, office buildings, and apartment buildings.

The MVR-300™ audible and visual alarms alert occupants and simultaneously communicate to Building Management Systems/Building Automation Systems (BMS/BAS). Two on-board relays can be used to close valves, activate alarm devices and exhaust fans or initiate emergency calls to rescue teams.

The on-board Modbus RTU interface provides real-time information about concentrations, status and settings. It also enables custom configuration of the MVR-300™ to any application specific requirements using multiple Modbus registers.

Product Specifications
Sensor Channels:1
Measuring Range:0-2,500 ppm, 0-5,000 ppm, 0-10,000 ppm
Accuracy:SC – < -10%/+15% of Full-Scale
Enclosure Rating:General Purpose
User Interface:Configuration through DIP switches, magnetic switches
Power:100 to 240 VAC, 50/60 Hz 4W
Digital Communications:Modbus RTU via RS 485
Operating Voltage:100 to 240 VAC, 50/60 Hz, 4 W max.
Relay Rating:2 Alarm relays, 1 Fault relay SPDT
Wiring:1 A @ @ 30 VDC/250VAC
Alarm:1 A @ @ 30 VDC/250VAC
Ambient Temperature:32 to 122°F (0 to 50°C)
Humidity:Humidity: 5 to 90% RH, non-condensing
Altitude:0 to 6,560 ft (2,000 m)
Status Indicator:Tri-color LED: green, amber, red
Buzzer Volume:80 dB @ 10 cm
Product Dimensions (L×W×H):6″ × 4.1″ × 1.75″ (150 × 105 × 45 mm)
Product Weight:8 oz (230 g)
Approvals:CE, UL/CSA/IEC/EN 61010-1
Warranty:1 Year
Accessories and Parts

Pressure Regulator (0.5 l/min, 5/8″-18 UNF)

Pressure Regulator (0.3 l/min, 5/8″-18 UNF)

Magnetic Wand

Calibration Adapter Kit ( adapter, tubing magnetic wand, extractor tool)

Extractor Tool (for removing sensor module during replacement process)

R-410A, Calibrated Sensor Assembly 2,500 ppm range

R-410A, Calibrated Sensor Assembly 5,000 ppm range

R-410A, Calibrated Sensor Assembly 10,000 ppm range

R-407C, Calibrated Sensor Assembly 2,500 ppm range

R-407C, Calibrated Sensor Assembly 5,000 ppm range

R-407C, Calibrated Sensor Assembly 10,000 ppm range

R-404A, Calibrated Sensor Assembly 2,500 ppm range

R-404A, Calibrated Sensor Assembly 5,000 ppm range

R-404A, Calibrated Sensor Assembly 10,000 ppm range

R-32, Calibrated Sensor Assembly 2,500 ppm range

R-32, Calibrated Sensor Assembly 5,000 ppm range

R-32, Calibrated Sensor Assembly 10,000 ppm range

Supported Gases

Contact Us

To speak to a member of our friendly customer service team about any of our products or services, please do not hesitate to contact us on the details below:

Telephone: (+44) 1527 522 299

Email: customerservices@maxeymoverley.com