2026-11-04
Two Star Products from VIRENT (Hong Kong): High-Efficiency Chiller & Deep Dehumidification PAU
VIRENT (Hong Kong) specialises in the R&D, manufacturing and sale of high-efficiency, energy-saving HVAC equipment. The two star products — the Air-bearing Integrated Evaporative-Cooled Chiller and the Deep Dehumidification & Disinfection Fresh Air Unit (PAU) — are widely applied in hotels, commercial buildings, data centres, industrial facilities, and pharmaceutical/food industries. Powered by self-developed oil-free air-bearing inverter centrifugal compressor and heat-pump dehumidification technology, the chiller achieves COP ≥ 6.0, while the PAU ensures dry, comfortable supply air with indoor RH ≤ 45% during pre-cooling. Proven deployments include Renaissance Hong Kong, Nina Hotel, Courtyard by Marriott, and The Hong Kong Jockey Club.

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Air-bearing Integrated Evaporative-Cooled Chiller Unit Product Overview Relying on core oil-free air-bearing variable-frequency centrifugal compressor technology, VIRENT independently developed the Integrated Evaporative-Cooled Chiller Unit. The product lineup covers three series with 10 models, including water-cooled chillers, evaporative-cooled chillers and integrated water-cooled air conditioners. Featuring high efficiency, low noise, low vibration, wide operating range and simple maintenance, it is widely used for central air conditioning and industrial process refrigeration in factories, commercial buildings and data centres, suitable for new construction and energy-saving retrofit projects. Click the link here for product information (Chinese only) |
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VIRENT Deep Dehumidification & Disinfection Fresh Air Unit (PAU) Product Overview The Deep Dehumidification & Disinfection Fresh Air Unit is specially developed for high-humidity and high-salinity climates. It is suitable for hotels, shopping malls, factories, high-end residences and other premises, establishing a complete air quality assurance system ranging from fresh-air intake to deep-level purification. It achieves deep dehumidification and high-efficiency disinfection with low-energy-consumption operation. Integrating dehumidification, purified fresh-air supply, energy-saving frequency conversion and intelligent linked control in one unit, it effectively resolves indoor problems such as dampness, mould growth and stale, turbid indoor air. Click the link here for product information (Chinese only) |
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Renaissance Hong Kong Harbour View Hotel
The hotel originally adopted electric hot-water boilers. By deploying VIRENT’s star product, the air-bearing chiller-heater, substantial energy-saving performance has been achieved for the hotel’s hot-water system. Following the installation of the air-bearing chiller-heater unit, power consumption was reduced to 60kW, generating an annual electricity-cost saving of approximately HK$3.6 million. Meanwhile, an evaporative-cooled integrated air-bearing chiller unit was adopted. It requires no cooling-water system, saving plant-room space and shortening the installation cycle. |
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Nina Hotel Island South
The hotel’s original guestroom air-conditioning system delivered supply air at 15°C / 90% RH. The lack of humidity control caused mould growth and a poor guest experience. After retrofitting with the VIRENT Deep Dehumidification & Disinfection Fresh Air Unit (PAU), the supply air is now controlled at 22°C / 45% RH. Guestrooms are now dry and comfortable, fully resolving the dampness and mould issue with energy-saving and eco-friendly benefits. |
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Courtyard by Marriott Hong Kong
Having been in operation for many years, the hotel’s original electric-boiler hot-water system had aged severely and consumed excessive electricity. VIRENT replaced it with higher-efficiency energy-saving heat pump units. After the retrofit, system energy efficiency improved by 25–40%. The units continuously supply stable hot water for the hotel and reduced electricity expenses, achieving annual savings of over HK$2 million. |
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The Hong Kong Jockey Club New Clubhouse Custom-built equipment was deployed to meet the high fume-load and stringent operational requirements of the Hong Kong Jockey Club New Clubhouse’s back-of-house kitchen. It rapidly exhausts cooking fumes and hot air. Fitted with vibration-damping and noise-reduction structures, the unit operates at low noise without disturbing the dining environment.
The cabinet body is anti-corrosion and rust-proof, suited to Hong Kong’s humid climate. Equipped with an energy-saving frequency-conversion module, it runs stably around-the-clock to satisfy the continuous food service demands of regular banquets and member dining at the Hong Kong Jockey Club. |







