EVI stands for "Enhanced Vapor Injection" and is a technology used on cold climate heat pumps to achieve higher performance at lower temperatures. 

EVI Technology Components

EVI heat pumps utilize a smaller internal plate heat exchanger called an "Economizer" within the refrigeration cycle.
A bypass valve diverts some hot refrigerant vapor from the condenser to the Economizer, combining it with colder gas on the Evaporator expansion side.
This process transfers heat energy, raising gas temperature further.
The heated gas is injected at mid-range pressure into the scroll compressor via a separate vapor injection port.

Application of EVI DC Heat Pumps

Residential Heating

EVI heat pumps are ideal for home heating, especially in colder climates. They efficiently provide warmth during winter, maintaining comfortable indoor temperatures.

Commercial Buildings

These heat pumps are suitable for heating and cooling larger spaces, such as offices, hotels, and shopping centers, due to their ability to work effectively in extreme temperatures.

Industrial Use

EVI heat pumps can be utilized in industrial settings for process heating, maintaining specific temperature conditions required for various manufacturing processes.

Hot Water Applications

They are used for hot water production in both residential and commercial settings, providing a consistent and efficient supply of hot water.

Heating and Cooling in Greenhouses

EVI heat pumps can regulate temperatures in greenhouses, ensuring optimal conditions for plant growth throughout the year.

Swimming Pool Heating

These heat pumps efficiently heat swimming pools, enabling comfortable water temperatures regardless of external weather conditions.

Large-Scale HVAC Systems

They are integrated into large HVAC systems for climate control in diverse settings, including hospitals, schools, and other institutions.

The adaptability and efficiency of EVI DC Heat Pumps make them a popular choice across different sectors due to their ability to maintain performance even in harsh conditions, providing reliable heating, cooling, and hot water solutions. For more information, please contact us. We will provide professional solution.

Advantages of EVI Heat Pumps

Performance Enhancement:

Overcomes limitations of maximum flow temperature in cold climate heat exchangers.
Enables increased heat delivery, improving Coefficient of Performance (COP) at lower temperatures.
EVI technology enhances performance efficiency by 27-30%.

Anti-Freezing Function:

Monitors external temperatures in cold weather to automatically adjust the heat pump's temperature.
Prevents freezing and potential internal component damage during winter.

Defrosting Capability:

Rapidly melts frost on the unit's fins using low-temperature inverter heat pump defrosting technology.
Implements intelligent defrosting to maintain energy efficiency.
This technology's comprehensive design and capabilities not only enhance performance but also ensure the system's resilience in cold weather conditions, mitigating potential freezing and optimizing energy efficiency.