Abstract: A method of HVAC system performance monitoring using a computing device connected to at least one thermostat of an HVAC system in a building includes receiving thermostat data from the thermostat, the thermostat data including temperature setpoint data, measured building temperature data, and HVAC operation data for a time period. Weather data is received from a weather service for the time period, and the thermostat data is synchronized with the weather data with respect to time. At least one machine learning model is trained using the synchronized thermostat and weather data, and performance of the HVAC system over time is monitored using the trained machine learning model.

Abstract: A wiring distribution system including connectors, tools, and methods is provided for building wiring. The mechanical and electrical interconnection is performed to the individual connector components in a crimping operation to the individual wires after removal of the outer covering. Using panels with apertures for accepting interchangeable connectors reduces the layers of connecting panels used between a wallplate and a computer.