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Emerson
 
Using Copeland Digital Scroll Heating improved with EVI, a heat pump system has greater heating capacity and operates more efficiently at low outdoor temperatures than a conventional heat pump, providing better heating to the end-user.
For conventional heating systems using scroll compressors, the refrigerant flow rate at the suction is less than the actual compressor capacity under low ambient temperature; hence, compressor capacity is not fully utilized. Copeland Digital Scroll with Enhanced Vapor Injection (EVI) improves on conventional heating systems by solving the shortfall in refrigerant flow rate. A second suction port on the fixed-scroll established, in which the flow on the main cycle is increased. With the help of an economizer, the high pressure / high temperature liquid will be expanded to medium pressure refrigerant gas through additional EXV and injected into the second suction port. Meanwhile, the main cycle can get enhanced super-cooling. |
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• Digital Scroll Heating technology surpasses other VRF systems as it provides better heating performance even at low ambient temperature without the need of supplemental heating from boilers or gas heater systems.
• Increased temperature difference between evaporating and condensing temperatures enhances its heating capacity.
• Conventional heat pumps have difficulty in dissipating heat below –5ºC. The EVI technology significantly increases refrigerant flow in the main cycle bringing in extra 7-34% heat gain.
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Higher Efficiency
• The COP for Digital Scroll Heating is outstanding even at low ambient temperatures.
Lower Running Cost
• Without the need for supplemental heating systems, the Digital Scroll Heating offers a long time solution in reducing operation costs in homes and buildings.
Simple Installation
• EVI is applicable for both heating and cooling applications, which eliminates the need for a boiler. It does not require large space and can be installed outdoors, on the roof and balcony. Safety devices inside the unit ensure better reliability.
Cheaper Total Equipment Cost
• Regular heat pump has been accepted in the market and its unit price is competitive. Digital Heating A/C would cost more than a regular heat pump, but developers can save more because it eliminates the first cost allocated for centralized heating installation. With a much lower running cost for long-term operations, Digital heating will benefit the end-user more in the total cost.
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| Click here for complete information about Digital Scroll Enhanced Vapor Injection |
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