Why is buy EVI DC inverter heat pump Better?

As shown in the above schematic, the liquid out of the condenser is separated into two parts. A smaller part of the liquid (i), is expanded through an additional expansion valve, and then directed (or flows) into a counter-flow plate heat exchanger, HX. The main part of the liquid out of the condenser (m), is then cooled down through the economizer while evaporating and superheating the injection mass flow. This additional plate heat exchanger, more generally called economizer, acts therefore as a sub cooler for the main mass flow (m) and as an evaporator for the injection mass flow. Superheated vapor is then injected into the intermediate vapor injection port in the scroll compressor.

The additional subcooling increases the evaporator capacity by reducing the temperature of the liquid from TLI to TLO, thus reducing its enthalpy. The additional condenser mass flow (i), increases the heating capacity by the same amount.

Efficiency with vapor injection scroll compressor cycle is higher than that of a conventional single stage scroll delivering the same capacity because the added capacity is achieved with proportionally less power. The injection mass flow created in the subcooling process is compressed only from the higher inter-stage pressure rather than from the lower suction pressure.

The additional Sub-cooling effect of EVI configuration allows heat pump to draw heat from the outdoor at lower outdoor temperatures. That could explain why DC inverter (Non EVI) Heat Pumps operate between -20&#;C and 45&#;C (Outdoor BD Temperatures) while DC Inverter EVI Heat Pumps operate between -25&#;C and 45&#;C (Outdoor BD Temperatures).

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To start, our DC Inverter Heat Pump uses the industry&#;s best compressor &#; a variable speed DC Panasonic EVI compressor. This DC motor runs at the exact speed it needs for the optimal efficiency. Most heat pumps use a single or dual speed compressor. This means it is ether off or on.

The company is the world’s best buy EVI DC inverter heat pump supplier. We are your one-stop shop for all needs. Our staff are highly-specialized and will help you find the product you need.

This is very important, as the compressor consumes the bulk of the energy requirement for a heat pump. By reducing the energy of the compressor the COP (co-efficiency of performance) is greatly increased. The Brushless DC fan motor and PFC control the running capacity and require no start up capacitor. By not requiring constant starting and stopping involved with conventional motors, our motor both reduces required input energy and reduces &#;wear & tear&#; on the compressor.

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