Do the Kuehl Condensers upgrades have fans?
Yes. Both units have full time blower fans pre-attached that pull in cooler outside air. The fans run full time, whenever the compressor is operating. The Kuehl Condenser fans are protected with an in-line fuse and are turned on by an ac relay we provide. The fans draw a minimum of electrical current and will not put any strain on your battery or 911 930 charging system. All Kuehl Porsche 911 930 Fender Condenser system upgrades include complete wiring, crimp terminals, fuse, relay and a simple schematic that makes hook up easy. Can I use R134a refrigerant with the Kuehl system. Yes. As a matter of fact the Kuehl Condenser system was designed specifically for R134a. And, you can use R12 if you wish.