A heat exchange system having desired anti-scaling performance and an anti-scaling method thereof are disclosed. The heat exchange system at least comprises a load control unit, a temperature and pressure detection unit and an anti-scaling treatment unit. The heat exchange system conditions bonding ways of water quality in a HVAC chiller unit, an air compressor, a heat exchanger, a cooling unit, or a boiler under a variety of scaling conditions in both field operation and water quality, by integrating the interaction of those units together with the anti-scaling method for simulating water quality that has a water quality limit same as that in field operation. The heat exchange system further integrates with a testing of anti-scaling performance to make water quality no longer charged and lose the reaction power so as to prevent scaling formation, enhance the anti-scaling performance, and ensure operating efficiency and performance.

The present disclosure provides a chlorinator apparatus for installation in the drain line of an air conditioning unit such as a household HVAC unit. The chlorinator apparatus is configured to hold a stack of tablets in a chamber such that they are partially submerged in a flow of water running through the drain line, thereby steadily dissolving in the flow and providing a long term blockage solution of the drain line, removing the need for regular application of bleach and other chemicals and preventing water build up and damage to the AC unit.

A dehumidification system includes an evaporator, a condenser positioned next to the evaporator, and a drain pan including a mist eliminator. The drain pan is disposed at least partially below the evaporator and the condenser. The drain pan at least includes a basin disposed at least partially below the evaporator. The basin includes a sloped bottom, a first rib disposed on the sloped bottom, a second rib parallel to the first rib and including a central gap, a third rib positioned between the first rib and the second rib, and an angled rib attached to the second rib. The third rib is parallel to and shorter than the first rib. The third rib is configured to at least partially block the central gap of the second rib. The angled rib is inclined towards the third rib and configured to change a velocity vector of the air flowing through the drain pan. The mist eliminator is configured to remove water droplets from the air.

A heat exchanger cleaner apparatus for spraying a cleaning composition into an air handler of an air conditioning system to contact an outer surface of a heat exchanger of the air handler includes a spray outlet assembly, a pump device, a connector interface, and a controller. The spray outlet assembly is inserted into an interior of the air handler to be exposed to the heat exchanger outer surface. The connector interface detachably couples with a complementary connector interface of a cartridge having a cartridge reservoir holding the cleaning composition, to establish flow communication between the cartridge reservoir and the pump device. The controller operates the pump device to pump cleaning composition from the cartridge reservoir and through the spray outlet assembly such that the spray outlet assembly sprays a fluid stream of the cleaning composition at least partially contacting the outer surface of the heat exchanger, without manual intervention.

A liquid filter, for example for a condensate reservoir (1), formed of a printed circuit board (8) comprising a plurality of holes (9) forming a filter screen through the printed circuit board. A first set of capacitive elements (16, 17) are formed in the printed circuit board (8) forming a first capacitive sensor (12) capable of measuring the depth of the liquid adjacent to the filter. The capacitive elements (16,17) may be shielded (19) on one side such that they measure the depth on one side of the filter. A second set of capacitive elements (16′, 17′) may be provided to measure the depth of the liquid on the opposite side of the filter.

A drain cleaner apparatus for dispensing a cleaning composition into a condensate drain line of an air handler of an air conditioning system. The drain cleaner apparatus includes an apparatus reservoir configured to hold the cleaning composition, a connector interface configured to couple with the condensate drain line to cause an apparatus outlet of the drain cleaner apparatus to be in fluid communication with an opening of the condensate drain line, a dispenser device that is configured to be actuated to selectively dispense an amount of the cleaning composition from the apparatus reservoir and through the apparatus outlet, and a controller configured to actuate the dispenser device to cause the amount of the cleaning composition to be dispensed through the apparatus outlet without manual intervention.

A drain cleaner apparatus for dispensing a cleaning composition into a condensate drain line of an air handler of an air conditioning system includes an apparatus outlet in fluid communication with an exterior of the drain cleaner apparatus, a dispenser device configured to be actuated to selectively dispense an amount of the cleaning composition through the apparatus outlet, a connector interface, a dispenser device, and a controller. The connector interface detachably couples with a complementary connector interface of a cartridge having a cartridge reservoir configured to hold the cleaning composition, to establish flow communication from the cartridge reservoir to the dispenser device. The dispenser device is between the connector interface and the apparatus outlet. The dispenser device may be actuated to selectively dispense the amount of the cleaning composition from the cartridge reservoir and through the apparatus outlet. The controller may actuate the dispenser device without manual intervention.

A sensor device for detection of water, having an inlet connector with an inlet opening, and at least one sensor element, wherein the inlet connector is exposed to or connected to a source of water, the inlet opening forms at least a part of a reservoir for reception of the water from the source of water, the reservoir is in fluid communication with a vent that vents the reservoir to the surrounding air and the sensor element is positioned within or adjacent to the inlet opening and/or the reservoir, such that it protrudes into the reservoir or forms an interface of the reservoir.

An air conditioner includes a controller that controls a driving unit of the air conditioner. The controller includes a determination unit that determines necessity of a contaminant reduction operation of the air conditioner based on whether the air conditioner is in a non-cooling operation period, and a setting unit that sets a condensation operation condition for forming condensed water on a surface of an indoor heat exchanger of the air conditioner. The controller performs the contaminant reduction operation of the air conditioner based on a necessity determination result of the determination unit in accordance with the condensation operation condition set by the setting unit.

An air conditioner includes a heat exchanger provided in an indoor unit, a drain pan that receives drain water generated in the heat exchanger, an irradiation unit that irradiates the drain pan with ultraviolet rays, and a control unit that controls ultraviolet intensity of the irradiation unit. The control unit controls the irradiation unit to make the ultraviolet intensity after a cooling operation is larger than the ultraviolet intensity during the cooling operation.