Reliable DC inverter EVI compressor maximizes performance & reliability
Connectivity, flexibility and serviceability enabled by smart controller
Designed to improve efficiency and reduce sound at part load
Split version for option
10~120rps inverter technology to fast higher water temperature
Smart microchip control, LCD user interface, capable of one-key startup
Widely operation range: at cooling 5°C ~ 48°C, at heating -35°C ~ 48°C
DC inverter technology to sure heating capacity “0” loss when ambient temperature >-15℃
Overview
Enhanced Vapor Injection (EVI) Technology
EVI stands for “Enhanced Vapor Injection” and is a technology used on our cold climate heat pumps to achieve higher performance at lower temperatures. An EVI heat pump uses a 3rd smaller internal plate heat exchanger called an “Economizer” within the refrigeration cycle. By utilizing a bypass valve some of the hot refrigerant vapor on the condenser is bypassed to a HX which combines with the colder gas on the Evaporator expansion side. The heat energy is transferred raising the gas temperature even further which is then injected at mid-range pressure into the head of the scroll compressor through a separate vapor injection port. Using EVI heat pump technology, we can overcome the limitation of maximum flow temperature that other cold climate heat exchangers encounter. EVI Heat Pump technology allows more heat to be delivered resulting in a better COP at much lower temperatures.
Unit can control well the frequency and EEV according to the ambient temperature and water temperature and the refrigerant volume of major loop of refrigerant system, even when ambient temperature is under -25℃, heat pump can still maintain same rated good heating capacity output without any auxiliary electric heater.
Special Design for Anti-Freezing and Anti-Frosting
With block up slopes on two sides of button + anti-freezing element on the bottom of heat pump and the use of special liquid distribution technology, when unit works in heating mode, the temperature of refrigerant in the heat exchanger’s bottom copper tubes will not decrease in order to ensure no frosting on it and smooth drainage.
After heat pump is start, unit can quickly pick and choose the best compressor and fan motor operating frequencies and the heat pump EEV opening automatically according to the heating or cooling demand by smart inverter control technology for the first time heating, inverter fast heating can save 50% heating time than traditional heat pump.
Optional advanced connectivity kit including circulation water pump, 3-way valve, expansion tank, and auxiliary electrical heating module for fast installation, save installation time and cost.
简体中文
Air-Cooled Heat Pumps 
Water Source Heat Pumps 
Air to Water Heat Pumps 
Industrial Process Heating Systems 
Integrated Chilled Water Systems 
Air-Cooled Chillers 
Water-Cooled Chillers 
Industrial Process Cooling Systems 
iZoned Rooftop Systems 
Packaged Rooftop Units 
Outdoor Air Systems 
Split & Packaged DX Systems 
Airaday® System 
Chilled Water Fan Coil Units 
Air Handling Units 
