In this podcast episode, Ty Newell from Build Equinox comes on to discuss the CERV2 and how it embodies "advanced fresh air." The CERV2 is the second-generation version of the CERV.

A basic ERV allows for discharge air leaving the home to pass the intake air. When the airstreams cross through a core, there is an exchange of sensible and latent energy. The ERV may promote dehumidification and cooling of the incoming air. The CERV is a form of ERV technology, but it addresses the issues that may arise from crossing the airstreams. For example, we don't always want to exchange energy, so sensors can examine the air content and determine when and when not to exchange energy.

The CERV, an advanced fresh air solution, went into development in 2008, and the first unit was built in 2010. The CERV has sensors for carbon dioxide and VOCs; either one of those may dominate the air quality in the home. The CERV also uses a heat pump to exchange energy and help heat or dehumidify fresh air coming in. The CERV also has higher CFM than most ventilation solutions, meaning that it can flush out pollutants effectively. So, the CERV acts as a supplementary heating/cooling source for maximum comfort and indoor air quality.

Build Equinox is a small company, and it has about 400 CERV/CERV2 units spread throughout North America. However, because the market is small, they can examine feedback very closely.

Ty and Bryan also discuss:

Potential downsides of bringing in outside air
Dehumidification for CERV
Recirculation mode
CERV unit controls
Using hydrocarbon refrigerants
Concerns with microchannel coils
Oil carry, miscibility, and foaming
Superheat control
Assessing indoor air quality
Sensitivity to IAQ threats
Latent-dominated, sealed residential constructions
Testing and choosing sensor technology

Check out more at buildequinox.com.

Learn more about Refrigeration Technologies HERE.

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