MVR-SC Controller 

Centralized Controller for Refrigerant Leak Detection

• Centralized monitoring for multi-occupant applications utilizing the MVR-300™ VRF Refrigerant Gas Detector
• At-a-glance visualization of whole system alarm, fault, or connectivity status
• Continuously monitors up to 100 connected devices for alarm and fault conditions, ensuring and warning in
  case of any disconnect
• Rolling event log of 100 most recent events (alarms, faults, connectivity, etc.) saved to SD card
• 1 Alarm Relay; 1 Fault Relay; automatic system action to be taken for fault or alarm condition via built-in
  relays
• Self diagnostics and simple field calibration for easy maintenance
• Commissioning via dynamic device pairing and remote Modbus auto-assign save

The MVR-SC Refrigerant Leak Monitor provides centralized monitoring and alarming for multi-occupant applications 
utilizing the MVR-300™ VRF Refrigerant Leak Detector. The MVR-SC continuously monitors all connected gas 
detectors for alarm and fault conditions, and will provide alerts via the integrated color touchscreen display, 
integrated buzzer, and on-board relay outputs.

IMPORTANT NOTE: Large refrigerant leaks into occupied spaces can reach concentrations that pose a suffocation risk 
to the occupants. The MVR-300™ is not designed to be used as the sole safety device for this risk. Safety of the 
occupants also must take a system designed approach that includes things such as ventilation, detection, early 
warning, mitigation and design redundancy.

Housing					Fiberglass Reinforced Polyester, Wall Mount, Single-door

Dimensions				        13.56 × 11.43 × 5.46 inches (344 × 291 × 139 mm)

Weight					7.8 lb (3.54 kg)

Display Type				Color Touch Display, Resistive Analog, TFT

Display Viewing Size			5 inch, 800 × 480 pixels

Audible Alarm				Integrated

Relay Outputs				2 (Fault, Alarm)

Relay Output Type				Fault and Alarm

Relay Switching Rating			2.0 Amps switching current, max 250VAC / 30 VDC

Max. Devices				100 × MVR-300 VRF refrigerant leak detectors
					        15 × MVR-300 VRF refrigerant leak detectors / Gateway
					        7 × Gateways / MVR-SC refrigerant leak monitor

Communication				Modbus TCP Master, 10/100 Ethernet, RJ45 Port

Serial Port				        1 × RS485 Modbus RTU Master (for direct addressing)

Memory Storage				microSD Card and USB 2.0

Backup Battery				CR2032 (Real-time Clock)

Operating Voltage				24V DC

Input Voltage Range			20.4VDC to 28.8VDC

Max. Current Consumption		0.44A @ 24VDC

Operating Temperature			-20º C to 55º C (-4º F to 131º F)

Storage Temperature			-30º C to 70º C (-22º F to 158º F)

Relative Humidity				5% to 95%

Approvals (Pending)			EN 61326-1:2013