VRB Heat Recovery

Lennox VRF® Heat Recovery units offer a simultaneous heating and cooling solution capable of conditioning up to 64 zones from a single system. The heat recovery process moves heat from spaces requiring cooling into spaces requiring heating, maximizing energy efficiency and occupant comfort.

• Hinged access panels on all outdoor units for easy access to internal components.
• Built-in LCD service console allows technicians to commission, startup, and service Lennox VRF systems from the outdoor unit with no additional software, external devices, or gauges
• Inverter-Driven Vapor Injection Compressor– Reduces energy usage by varying the compressor speed in response to the capacity demand at each indoor unit. Vapor injection technology provides increased capacity at both low and high ambient temperatures, as well as improved efficiency.
• High-Efficiency Operation – Part-load IEER efficiencies up to 26.2 and simultaneous cooling and heating SCHE efficiencies up to 32.8 offer some of the most efficient systems on the market.

• 6 to 42 ton capacity
• 208-230V/3PH/60HZ
• 460V/3PH/60HZ
• Up to 3,280 ft. of refrigerant piping
• All inverter compressors
• Simultaneous heating and cooling up to 64 indoor units

The MS Box is the key component to the Lennox VRF Heat Recovery systems. It offers flexible installation configurations in 2-, 4-, 6-, 8-, 10-, and 12-port models, with each port featuring a dedicated subcooling circuit. Integral hot gas bypass control maintains minimum suction pressure during part load operation.

• Zoning Flexibility - Combine up to 5 zones with similar load profiles on a single port (up to 54,000 btu/h per port), with up to 10 indoor units and 144,000 btu/h per MS Box. 
• Twin Ports — Twin ports together for indoor units above 54,000 btu/h.
• Versatile Design — MS Boxes can be piped from either side, allowing maximum design flexibility even in buildings with limited spacing.
• Integrated Suction Pressure Protection — An integrated hot gas bypass valve provides an additional measure of compressor protection by helping maintain minimum suction pressure during low load conditions.
• Heat Recovery — MS box operation allows condensed liquid refrigerant to flow from an indoor unit in the heating mode into an indoor unit in the cooling mode, reducing waste heat rejected at the condensing unit and improving the overall operational efficiency of the heat recovery system.

The Lennox VRF AHU Control Kit creates an HVAC solution that is adaptable, efficient and customizable.

• Compatible with cooling coils in 1 to 20-ton capacities
• Utilizes the same Electronic Expansion Valve (EEV) and controls algorithm used in Lennox VRF equipment for precise and efficient comfort control
• Simplified installation with 2 piping connections
• Experience the design flexibility of VRF systems with up to 3,280 feet on VRF Heat Pump and Heat Recovery.