NOTES:
1.) ∆ PS is the difference in static pressure across the assembly, with the damper fully open.
2.) To obtain Total Pressure, add the Velocity Pressure for a given CFM to the Static Pressure drop
(D PS).
3.) Max and Min kW shown assumes 55F entering air and is limited by unit's selected voltage, phase
and max capacity. Minimum cfm for electric heat is based on UL/ETL listings.
4.) Maximum discharge temperatures with Electric Heat are set at 120F by the National Electric
Code.
* The ASHRAE Handbook of Fundamentals does not recommend a discharge temperature
exceeding 90F.
** A minimum 0.10” discharge static pressure is required to ensure steady operation for the airflow
switch in the electric heater.
*** Minimums for DDC by others are the responsibility of the controls' provider.
****Max Kw is limited by design
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