Preparing for the Cold: Frost Control Strategies for Energy Recovery Wheel

Posted 17 August, 2019 — Did You Know

All energy recovery ventilation systems require frost protection in climates experiencing severe winter design conditions.  Frost formation results in a reduction and eventual blockage of airflow through the heat exchanger.  The temperature below which frost will begin to accumulate on heat exchanger surfaces is referred to as the frost threshold temperature.  It is a function of outdoor temperature and indoor relative humidity.