Abstract: One aspect of this disclosure provides a thermostat that can be magnetically attached to the wall using one or more magnets that allow the thermostat to be rotated about the wall, once mounted, or easily removed from the wall altogether to operate as a remote unit. Other devices, systems, and methods are disclosed.

Abstract: An intense field dielectric air filtration system associated with an air conditioning unit includes a microprocessor based control system which may be connected to the thermostat of the air conditioning unit to energize the air filtration system in response to a call for heat or cooling signal at the thermostat or startup of the fan motor for the air conditioning unit. The control system includes a power supply for the air filtration system together with voltage and current monitoring circuits for detecting a fault condition. Filtration system on/off and timing function reset switches are connected to the microprocessor and visual displays, including a multicolored LED bargraph display, are controlled by the microprocessor to indicate voltage potential applied to the air filtration system, a fault condition or a test mode.

Abstract: An air filtration system includable in and for HVAC equipment includes one or more intense field dielectric filter units and a field charging unit retained in a support structure or cabinet by a removable door which includes control circuitry and contactors engageable with corresponding contact members on a filter unit and the field charging unit for supplying high voltage DC potential to the respective units. Each filter unit includes a filter core comprising a stacked array of filter elements formed of dielectric sheets interconnected by elongated spaced apart ribs forming flow passages. The field charging unit and the filter units are removable from the support or cabinet for cleaning or replacement by opening or removing the door. An interlock switch and a field shorting mechanism are actuated during servicing or replacement of the system components.

Abstract: A heating, ventilation and air conditioning diagnostic system and associated method of use is disclosed. The system includes a controller for operating a heating, ventilation and air conditioning system, a plurality of sensors for monitoring various parameters associated with the operation of the heating, ventilation and air conditioning system that are in electronic communication with the controller, at least one input device that is in electronic communication with the controller, wherein the at least one input device is able to modify variables utilized by the controller to improve performance of the heating, ventilation and air conditioning system; and at least one output device that is in electronic communication with the controller. The variables can include non-safety timing values and text-based information. The system may include counters that can be read-only, reset to zero and overwritten through the plurality of input devices. Historical data can be recorded, reviewed and selectively analyzed.