US 11,530,835 B2 · System for preventive maintenance of HVAC units

Abstract

There is described a system and method of a building management system for preventive maintenance of an HVAC unit. Runtime data of the HVAC unit is received at a control system remote from the HVAC unit. A service message is initiated, by the control system, to a service device associated with the HVAC unit in response to determining that a preventive maintenance visit is warranted based on the runtime data. A hot-cold test for the HVAC unit is activated by the control system in response to receiving the registration message of the preventive maintenance visit from the service device. A validation message is reported in response to validating the preventive maintenance visit based on a result of the hot-cold test for the HVAC unit.

Claims18

Dependent claims

A method of a system for preventive maintenance of a heating, ventilation, and air conditioning (HVAC) unit, the method comprising:

receiving, at a control system associated with the HVAC unit, runtime data of the HVAC unit, wherein receiving the runtime data of the HVAC unit includes aggregating the runtime data on a periodic basis into periodic totals at the control system;
initiating, by the control system, a service message to a service device associated with the HVAC unit in response to determining that a preventive maintenance visit is warranted based on the runtime data, wherein the service message includes a geofenced login link for a site;
activating, by the control system, a hot-cold test for the HVAC unit in response to receiving a registration message of the preventive maintenance visit from the service device;
and
reporting a validation message in response to validating the preventive maintenance visit based on a result of the hot-cold test for the HVAC unit.

2 more elements

A non-transitory computer readable medium including executable instructions which, when executed, causes at least one processor of a system for preventive maintenance of a heating, ventilation, and air conditioning (HVAC) unit by:

receiving runtime data of the HVAC unit;
aggregating the runtime data on a periodic basis into periodic totals;
initiating a service message to a service device associated with the HVAC unit in response to determining that a preventive maintenance visit is warranted based on the runtime data, wherein the service message includes a geofenced login link for a site;
receiving a registration message of the preventive maintenance visit from the service device;
activating a hot-cold test for the HVAC unit in response to receiving the registration message of the preventive maintenance visit from the service device;
and
reporting a validation message in response to validating the preventive maintenance visit based on a result of the hot-cold test for the HVAC unit.

4 more elements

Dependencies are inferred from the claim text.

System for preventive maintenance of HVAC units

Life of this patent

System for preventive maintenance of HVAC units

Life of this patent

Abstract

Claims18