VRF, DOAS, HRVs and Cooling Towers

VRF, DOAS, HRVs and Cooling Towers

HVACR Systems

Our VRF product line offers a flexible, modular solution ranging from approximately 6 to 72 tons of capacity (about 20 to 250 kW), allowing you to serve everything from small commercial zones to large, multi-story buildings on a single platform. The range includes heat-pump and heat-recovery systems capable of cooling, heating, and, where required, providing simultaneous heating and cooling to different zones, with wide operating envelopes for diverse climates. For seamless integration in global projects, units are available in the most common commercial voltages, including 208–230 V and 460 V, 3-phase, 60 Hz, as well as 380–415 V, 3-phase, 50 Hz, giving designers and contractors the flexibility to match local power conditions while standardizing on a single VRF architecture.

Our DOAS product line delivers 100% outdoor air treatment from roughly 1,000 to 20,000 CFM (≈5 to 60 tons), covering small commercial zones up to large institutional and industrial buildings with a single platform. The range includes high-efficiency cooling and heating, hot-gas or electric reheat for neutral or dry supply air, energy-recovery options (sensible plate, enthalpy wheel, or heat-pipe), and advanced dehumidification technologies, including configurations suitable for high latent loads in humid climates. Units are available for the most common commercial voltages worldwide—208–230 V and 460 V, 3-phase, 60 Hz, as well as 380–415 V, 3-phase, 50 Hz—giving designers and contractors flexibility to match local power conditions while standardizing on one DOAS architecture.

Our Heat Recovery Ventilator product line provides efficient sensible heat exchange across a wide airflow range, from roughly 300 to 8,000 CFM, making it suitable for small commercial spaces up to larger institutional and light industrial buildings. Systems are available with high-efficiency counterflow or crossflow plate heat exchangers and rotary heat wheels, with optional bypass dampers, demand-controlled ventilation (CO₂ or occupancy-based), EC supply and exhaust fans, and integrated frost protection strategies to ensure reliable operation in cold climates. Depending on size and configuration, units are offered for common commercial power supplies, including 208–230 V and 460 V, 3-phase, 60 Hz, 380–415 V, 3-phase, 50 Hz, and select smaller models in 115–230 V, single-phase, giving designers and contractors broad flexibility to match local electrical conditions while standardizing on a single HRV platform.

Our open and closed circuit cooling tower portfolio covers a broad thermal capacity range from roughly 50 to over 4,000 tons, giving designers and owners the flexibility to serve everything from standalone chillers to large central plants and industrial processes. Open-circuit towers provide efficient evaporative heat rejection directly to condenser water, while closed-circuit (fluid cooler) designs isolate process or glycol loops from the atmosphere, reducing fouling and simplifying water treatment. Available with axial or centrifugal fans, single- and multi-cell configurations, variable-speed drives, low-sound packages, and a range of construction materials (galvanized, stainless, and corrosion-resistant options), these systems are ideally suited for comfort cooling in commercial buildings, district cooling schemes, data centers, manufacturing and process cooling, and other mission-critical applications that demand reliable, energy-efficient heat rejection.

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