As we know that ground source heat pumps are able to supply heat pump no matter what outdoor temperature will be, however, not all the customer are willing to install a ground source heat pump because of its disadvantages.
OSB also consider this for customers and make another alternative option for customers that do not want to install a ground source heat pump. That is inverter EVI heat pump BLB1I-200S.
The main disadvantages of a ground source heat pump are:
1.They are expensive to install. Compared to air source heat pump, ground source heat pumps are more expensive not only on the ground source heat pump unit, but also a comprehensively expensive cost on its installation.
2.The installation process will mean significant work and disruption to your garden. Not all the customer has a big garden for such huge ground loop.
If you are being bothered by above disadvantages of ground source heat pumps and are willing to select air source heat pump instead, OSB BLB1I-200S model of heat pump will be the better option for you!
First of all, instead of regular rotary or scroll compressor, OSB still insists using EVI compressors with vapor injection port, allows to increase refrigerant mass flow into evaporator and at lower entering temperatures.
It 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 are able to overcome the limitation of maximum flow temperature that another cold climate heat exchanger encounter. EVI Heat Pump technology allows more heat to be delivered resulting in a better COP at much lower temperatures. The EVI technology increase performance efficiency by 27-30%.
Based on EVI technology, OSB EVI inverter heat pump unit NOT just ensuring the air source heat pump works in cold chiller minus 25 degree C ambient, but also increase its energy saving efficiency by inverter technology.