Bob and Tim were on their last service call for the day. It was an apartment house with a heat pump and the weather was warm during the day and cool at night. The tenant had just moved into this apartment and was trying to get the air conditioning to operate to her satisfaction and she said it was too breezy.

It is my firm belief that airflow and air distribution is every bit as important in refrigeration design as load calculations. What good is a properly sized system that can’t deliver the air to areas that need it? Poor air distribution and airflow lead to stratification in temperature and humidity as well as poor heat transfer.

Zehnder America announced it is now locally sourcing in the United States both its new ComfoFlex ducting and register boxes as part of its comprehensive approach to providing a heat recovery ventilation (HRV) or energy recovery ventilation (ERV) system with properly matched air distribution components.