A heating and cooling apparatus is disclosed that combines a PTC heating element with a fan, and a combination of a cooling device aided by a thermoelectric cooling device to provide heating, passive air conditioning, and air circulation. The heating and cooling apparatus can include a condensation trap, a collection container, and an ozone generator for collecting and purifying the condensate. In addition, this apparatus provides the additional function of serving as an air purification system operating either in combination with the heating/cooling functions or as an independent air purifier.

A heating and cooling apparatus is disclosed that combines a PTC heating element with a fan, and a combination of a cooling device aided by a thermoelectric cooling device to provide heating, passive air conditioning, and air circulation. The heating and cooling apparatus can include a condensation trap, a collection container, and an ozone generator for collecting and purifying the condensate. In addition, this apparatus provides the additional function of serving as an air purification system operating either in combination with the heating/cooling functions or as an independent air purifier.

An air regulating device includes a casing assembly, an outdoor fresh air regulator, a fan assembly, and a heating assembly. The casing assembly includes a front casing having a first fresh air inlet and an air outlet, and a rear casing has a second fresh air inlet. The outdoor fresh air regulator includes a front damper gate coupled at the front casing to selectively open and close the first fresh air inlet, and a rear damper gate coupled at the rear casing to selectively open and close the second fresh air inlet. The fan assembly is arranged to suck outdoor fresh air from the second fresh air inlet to the air outlet. The heating assembly is disposed within the air tunnel for heating up the outdoor fresh air before entering into the indoor side at the air outlet.

An air regulating device includes a casing assembly, an outdoor fresh air regulator, a fan assembly, and a heating assembly. The casing assembly includes a front casing having a first fresh air inlet and an air outlet, and a rear casing has a second fresh air inlet. The outdoor fresh air regulator includes a front damper gate coupled at the front casing to selectively open and close the first fresh air inlet, and a rear damper gate coupled at the rear casing to selectively open and close the second fresh air inlet. The fan assembly is arranged to suck outdoor fresh air from the second fresh air inlet to the air outlet. The heating assembly is disposed within the air tunnel for heating up the outdoor fresh air before entering into the indoor side at the air outlet.

An air handling unit has a blower assembly, a first interior zone, and a second interior zone and the blower assembly physically separates the first interior zone from the second interior zone. A method includes providing a cabinet configured to receive a blower assembly, inserting a blower assembly into the air duct, and closing a cabinet door of the cabinet, wherein upon closing the cabinet door, the primary air flow path from a location within the cabinet downstream of the blower assembly to a location within the cabinet upstream of the blower assembly is through a blower housing of the blower assembly. A blower assembly has a blower housing comprising at least one air inlet and at least one air outlet and a blower deck extending from the outlet, wherein the blower deck comprises at least one substantially flat component having a substantially orthogonal wall extending from the flat component.

A method of liquid delivery in an evaporative cooler having an assembly of plates may include delivering liquid from a fill tube to a first trough formed on a first plate of the assembly of plates, the first trough including a first perforation in fluid communication with a second trough formed on a second plate of the assembly of plates, the fill tube configured to deliver the liquid above the first perforation such that an exit point of the fill tube is not submerged in liquid at any point during liquid delivery or operation of the evaporative cooler, draining the liquid from the first trough to the second trough via the first perforation, and filling the second trough to an overflow level before permitting the liquid to exit the second trough via a second perforation, the overflow level defined by a bottom of the second perforation.

Methods for providing heating or cooling to a plurality of zones in a conditioned space, include adjusting a temperature of a primary airflow using a heating, ventilation, air conditioning, and refrigeration (HVACR) system including a heat pump circuit and distributing the primary airflow to a plurality of terminals in the zones. The methods further include directing heat from the heat pump circuit to at least one of the plurality of terminals and heating air at the at least one of the plurality of terminals using the heat directed from the heat pump circuit. The methods can further include utilizing sources and sinks of the heat pump circuit to efficiently provide the heating or cooling. Systems include the heat pump circuit, terminals, heat distribution, and can include a controller to operate those components.

Methods for providing heating or cooling to a plurality of zones in a conditioned space, include adjusting a temperature of a primary airflow using a heating, ventilation, air conditioning, and refrigeration (HVACR) system including a heat pump circuit and distributing the primary airflow to a plurality of terminals in the zones. The methods further include directing heat from the heat pump circuit to at least one of the plurality of terminals and heating air at the at least one of the plurality of terminals using the heat directed from the heat pump circuit. The methods can further include utilizing sources and sinks of the heat pump circuit to efficiently provide the heating or cooling. Systems include the heat pump circuit, terminals, heat distribution, and can include a controller to operate those components.

In one embodiment, an evaporative cooler is described. The evaporative cooler may comprise an assembly of one or more plates. At least one trough proximate the one or more plates. A water delivery system may be proximate the at least one trough. The water delivery system may comprise at least one supply tube and at least one fill tube, wherein the water delivery system is positioned to siphon air from the evaporative cooler when a continuous water supply is suspended.

An air supply apparatus used for an air conditioner, includes: an annular outer frame (21), having an outer surface formed as a partial spherical surface and having an accommodating space (24) therein; and the impeller assembly (22) provided in the accommodating space (24) and pivotally connected to the outer frame (21), in which the impeller assembly (22) has an air suction side and an air outlet side. Also disclosed is an air conditioner having the air supply apparatus.