Patent ID: 11874009
Assignee: nan
Field: Thermal processes and apparatus (Mechanical engineering)
Classification: CPC F  G | IPC F

Claim 0:
1. A method for monitoring performance and determining fault detection of a heating ventilation and air conditioning (HVAC) system, comprising:
initiating a performance evaluation period through an HVAC controller communicatively coupled to the HVAC system;
monitoring the operation of the HVAC system using a monitoring system controller;
obtaining baseline data for one or more environmental factors from at least one of the following:
the HVAC controller communicatively coupled to the monitoring system controller;
one or more sensors communicatively coupled to the HVAC controller; or
one or more or databases communicatively coupled to the monitoring system controller;

generating a measured rate of temperature change (IATR) value during the performance evaluation period;
generating an adjusted rate of temperature change (IATRadj) value at intervals during the performance evaluation cycle using a performance analysis algorithm, the IATR value, and
obtained environmental data; wherein the environmental data comprises:
indoor air temperature (IAT); indoor relative humidity (IDRH); and outside air temperature (OAT); and one or more of the following:
historical measured performance data for the HVAC system; or
manufacturer system performance product data, wherein the generated IATRadj value reduces variability of the IATR value to better evaluate the performance of the HVAC system by utilizing the environmental data as adjustment factors; and

alerting a user when the IATRadj value reaches a threshold value.