Air source heat pump is a new generation of heating and cooling equipment available today and EVI DC inverter heat pump is one of the latest inventions in the heat pump industry. In many countries around the world are commonly used EVI heat pumps as a way of heating, especially in the relatively cold environment. […]
Air source heat pump is a new generation of heating and cooling equipment available today and EVI DC inverter heat pump is one of the latest inventions in the heat pump industry. In many countries around the world are commonly used EVI heat pumps as a way of heating, especially in the relatively cold environment.
In the recent years, with the upgrading of new residential heating technology, the traditional way of heating is being phased out of the way and is replaced by energy saving, environment friendly heating solution to become the mainstream.
The Significance of Arctic EVI DC Inverter Heat Pump
Usually heat pumps use a single or dual speed compressor. This means it’s either an on or off type. But the Arctic EVI DC inverter heat pump uses one of the industry-best compressors – a variable speed DC Mitsubishi EVI compressor.
The DC motor operates at the specific speed it requires to achieve maximum efficiency. In this way, the DC inverter heat pump has an average of 30% more efficiency than a standard unit. This is really important as the compressor consumes the bulk amount of energy requirement for a heat pump.
The presence of brushless DC fan motor and PFC control the operating capacity and don’t need start up capacitor. Though it doesn’t require constant starting and stopping which generally involve with conventional motors, this DC motor reduces the needed input energy and also the daily wear and tear on the compressor.
Most compressors switch on and start operating until they go above the set point and turn off until they go below a set point. This results hot and cold fluctuations in room temperature and longer operation times. With a DC inverter heat pump variable speed compressor, you can reach the desired room temperature quickly as the compressor will get to high speed right at the beginning.
Once the desired temperature is attained, the compressor will throttle back and maintain the preferred temperature, providing the exact amount of energy as required. This ensures a great level of comfort inside your home while minimizing operational costs.
What Does EVI Stand For?
EVI stands for Enhanced Vapor Injection. It’s a latest technology used on Arctic cold climate heat pumps to obtain higher performance at lower temperatures. Generally, an EVI heat pump utilizes a third smaller internal plate heat exchanger known as an economizer within the refrigeration cycle. By using a bypass valve, some of the hot refrigerant vapor present on the condenser is bypassed to a HX that combines with the colder gas on the evaporator expansion side.
Again the heat energy is transferred – which increases the gas temperature even further. Then it is injected at mid range pressure into the head of the scroll compressor through a separate vapor injection port.
Utilizing EVI heat pump technology, the Arctic heat pumps can be able to get rid of the limitation of optimal temperature flow that other cold climate heat exchangers encounter. This technology ensures more heat to be delivered which results in a better COP even at much lower temperature. Please remember that, the EVI technology increases the co-efficient of performance by 27-30%.