Abstract: A climate control system (10) includes an outdoor unit (14) and an indoor unit (12) having at least two fans (26,28). The fans (26,28) include control wiring (38,40) that is interchangeably connected to a control system (20), and feedback wiring (42,44) that is also interchangeably connected to the control system (20). The control system (20) is capable of automatically detecting the wiring configuration of the control wiring (38,40) and the feedback wiring (42,44). The climate control system (10) operates the fans (26,28) according to the detected wiring configuration to heat or cool an interior space.

Abstract: A system for remotely monitoring and controlling an HVAC device includes a server which receives queries from an entry device and data from the HVAC device. Databases with information regarding the location and status of the HVAC devices reside on the server, as does a user name/password file, instead of in the entry device or the HVAC controller. Connection is provided over various communications links including the Internet, POTS, and GSM networks. A user with an entry device such as a handheld computer or cell phone using wireless access protocol (WAP) can change settings, obtain diagnostic information, and receive alarm messages about a plurality of HVAC devices.