Carrier 40QN660006 Control Box Kit

The Carrier 40QN660006 is a control box kit, which is an accessory located behind most of the Carrier HVAC products. This kit contains electrical parts and circuit boards that control the functioning of the whole system. It works through the processing of signals from thermostats, sensors, and safety switches and then relays these signals into the compressor, fan, and other related parts. This particular kit may be designed for use with PTACs or other unitary equipment of similar design. A functional control box is therefore essential for regulation of the indoor environment in terms of comfort and safety.