A drain line cleaning nozzle comprising a first end and a cylindrical portion connected to the first end is described. The cylindrical portion of the nozzle having a diameter that is configured to fit within a pipe. The drain line cleaning nozzle can also include a tapered portion connecting the cylindrical portion to a second end. The second end of the nozzle is configured to couple to a hose. The tapered portion is offset from the second end of the nozzle and is configured to fit within a plumbing connection and engage, via an interference fit, an opening of the plumbing connection connected to the pipe.

The present invention is directed to systems for cleaning a component inside a machine, such as an evaporator coil inside an air conditioner. A pump is connected to a controlling device. The pump is also connected to a metering device. The metering device is connected to one or more reservoirs. The metering device is also connected to one or more devices, adapted to generate a fog whose particles have a mean diameter of less than about 15 microns. To perform the cleaning of the component, the controlling device disables the machine. The controlling device then activates the pump. The pump causes cleaning solution to be drawn from the one or more reservoirs into the metering device, which then transfers the cleaning solution into the fog generating device(s). The controlling device then allows the machine to resume operation.

The present invention relates to a precision air conditioner with an indirect evaporative unit, which comprises a gas-gas heat exchanger, an external circulation fan, an internal circulation fan, a gas filter module, a gas humidification module, an evaporator, a condenser, a condenser fan, a compressor and an air conditioner enclosure. The combination of indirect evaporative cooling and mechanical refrigeration enables indirect evaporative cooling to operate all year round with high air conditioning and refrigeration efficiency. During summer, mechanical refrigeration is used for secondary cooling to achieve the desired temperature. Further, the condenser of the precision air conditioner is upgraded to an indirect evaporative condenser, and the mechanical refrigeration efficiency can be greatly improved.

A drain line cleaning device and kit are described.

A method for cleaning an air conditioner indoor unit and outdoor unit includes controlling a heat exchanger to enter a self-cleaning mode, adjusting an operating frequency of an air conditioner, an opening of a throttling device, and a corresponding fan speed of the heat exchanger, and maintaining an evaporating temperature of the heat exchanger within a present range to enable a frost process on a surface of the heat exchanger. When a differential pressure of the air conditioner meets a preset condition, a four-way valve changes a direction, switching defrosting to indoor and outdoor heat exchangers. When the differential pressure does not meet the preset condition, the air conditioner is adjusted to meet the preset condition and the four-way valve direction is changed to perform a defrosting switching to the indoor and outdoor heat exchangers.

A device including an outer hose segment, an inner hose segment, a first air chamber for accommodating a first air flow, a second air chamber for accommodating a second air flow, a drive tool coupler into engagement with a first end portion of the outer hose segment and inner hose segment, a cleaning end section that is configured to allow tools to be attached and detached to and from said device, and a hose coupler into engagement with a second end portion of the outer and inner hose segments, wherein the hose coupler is configured to control the first and second flow of air into the first and second air chambers independently.

Systems and methods for cleaning a component inside an air handling apparatus includes a pump is connected to a controlling device and a metering device that is connected to one or more reservoirs. The metering device is also connected to one or more fogging devices. Each fogging device is positioned inside a housing, or plenum, so as to cause a fogged cleaning solution to be disbursed throughout the plenum and fully cover the component. To perform the cleaning of the component, the controlling device disables the machine and activates the pump which causes cleaning solution to be drawn from the one or more reservoirs into the metering device, which then transfers the cleaning solution into the fogging apparatus. The controlling device then allows the machine to resume operation.

A drain line cleaning device and kit are described.

The present disclosure relates generally to air intake filter assemblies, and more particularly to air intake assemblies for an outdoor portion of a heating, ventilation, and/or air conditioning (HVAC) system. In an embodiment, a filter assembly is configured to filter an airflow entering an air intake of a HVAC unit. The filter assembly includes a support structure and a plurality of filter slats, each having a fine filtration material, each disposed within the support structure, and wherein the plurality of filter slats is configured in a louvered relationship and actuated between a closed configuration through which the airflow passes and an open configuration through which the airflow passes.

A method and system of activating a fan for an air conditioning system is disclosed. Upon the sensing of rain in the proximity of the air conditioning system, such as a condenser, a fan is activated. The fan is configured to drive air and rain through the condenser. The fan can be configured to operate periodically or for a pre-set amount of time while rain is being sensed.