AC blows hot air at low idle startup after driving a couple miles it works great

What is your question?

Truly an intermittent problem. Any time the car is started (warm or cold) system blows ambient air. After driving several miles system begins working great, ice cold air. No noise coming from dryer Compressor on startup does not cycle Freon pressure is good No leaks Have 150K miles on Mazda B2300 2.3L

What makes this problem better or worse?

On startup (hot or cold) running several miles it work

How long has your 2008 Mazda B2300 had this problem?

6 months