Purge Mode Description
When the system powers up, the heater and A/C programmer initiates the following purge routines:^ Purges the system of stale air
^ Redirects the air in order to avoid window fogging or other undesirable conditions
If the heater and A/C system is in the AUTO mode, the programmer will determine if any of the undesirable conditions exist. The programmer then has the options of selecting 3 different purge modes in order to eliminate the undesirable condition.