Do mean to hijack the thread but are the commericial HVAC manufactuers going toward R410a in 2010 as the standard like in residential or will they use an HFC alternative to R22 since the SEER rules don't apply?
Lack of airflow destroys compressors.
Cold be R410A, or R407C.
Contractor locator map
How many times must one fix something before it is fixed?