HVAC unit pressure, vacuum and charging apparatus and method
AssigneeCarrier Corporation
InventorsSotiri Hovardas, Adam Finney
Life of this patent
Estimating the term…
Abstract
A testing and charging system for a heating, ventilation and air conditioning (HVAC) system includes a testing and charging apparatus operably connectible to a refrigerant line of the HVAC system, an inert gas supply operably connected to the testing and charging apparatus, a refrigerant supply operably connected to the testing and charging apparatus, and a controller. The controller is configured to command the testing and charging apparatus to perform a pressure test of the HVAC system, command the testing and charging system to perform a vacuum test of the HVAC system, and command the testing and charging system to charge the HVAC system with refrigerant.
Claims19
A testing and charging system for a heating, ventilation and air conditioning (HVAC) system, the testing and charging system comprising:
- a testing and charging apparatus operably connectible to a refrigerant line of the HVAC system;
- an inert gas supply operably connected to the testing and charging apparatus;
- a refrigerant supply operably connected to the testing and charging apparatus;
- and
- a controller configured to:
- command the testing and charging apparatus to perform a pressure test of the HVAC system utilizing a volume of inert gas flowed into the refrigerant line of the HVAC system from the inert gas supply;
- command the testing and charging system to perform a vacuum test of the HVAC system;
- and
- command the testing and charging system to charge the HVAC system with refrigerant.
A method of testing and charging a heating, ventilation and air conditioning system, comprising:
- connecting a testing and charging apparatus to a refrigerant line of the HVAC system, the testing and charging apparatus including:
- an inert gas supply operably connected to the testing and charging apparatus;
- and
- a refrigerant supply operably connected to the testing and charging apparatus;
- performing a pressure test of the HVAC system by pressurizing the HVAC system with inert gas flowed into the refrigerant line of the HVAC system from the inert gas supply via operation of the testing and charging apparatus;
- performing a vacuum test of the HVAC system by bringing the HVAC system via operation of the testing and charging apparatus;
- and
- charging the HVAC system with refrigerant from the refrigerant supply via operation of the testing and charging apparatus.
A heating, ventilation and air conditioning (HVAC) system, comprising:
- an indoor unit disposed inside a building to be conditioned by the HVAC system;
- an outdoor unit disposed outside the building, the outdoor unit operably connected to the indoor unit via a refrigerant line;
- and
- a testing and charging system, including:
- a testing and charging apparatus operably connectible to the refrigerant line;
- an inert gas supply operably connected to the testing and charging apparatus;
- a refrigerant supply operably connected to the testing and charging apparatus;
- and
- a controller configured to:
- command the testing and charging apparatus to perform a pressure test of the HVAC system utilizing a volume of inert gas flowed into the refrigerant line of the HVAC system from the inert gas supply;
- command the testing and charging system to perform a vacuum test of the HVAC system;
- and
- command the testing and charging system to charge the HVAC system with refrigerant.
Dependencies are inferred from the claim text.