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How to Calculate Cooling Capacity for a DOAS unit

This is an easy calculation if you know the cfm (airflow to be conditioned) and have a psychrometric chart handy.  The formula for calculating total cooling is: Qt = cfm x (Hf-Hi)...... Read More

How to design a DOAS unit as sole source heating and cooling

When possible, it makes life easy to have a separate DOAS system from the space HVAC system. In this case, each system has one specific job: -The DOAS’s job is...... Read More

HVAC swimming pool design

Did you know that the HVAC equipment for indoor pool applications should not be installed directly above the swimming pool area? Warm moist air, which might contain airborne chemicals like...... Read More

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