Control/Regulation Speed Control You're three steps away from the right air conditioning solution With the Climate Control QuickFinder you can quickly and easily find the right air conditioning solution for your requirements. Receive the result conveniently by e-mail. Start now Speed Control EC speed control Control unit for EC fans Temperature-dependent speed control for EC- filter fan for noise reduction and energy conservation . Read more Speed Control EC speed control Speed Control Sensor NTC sensor for the temperature-dependent speed control of EC fans to reduce noise and save energy. Read more Speed Control Speed Control For filter fans and air/air heat exchangers Temperature-dependent speed control to reduce noise and save energy in part-load operation. Read more