Abstract: Example embodiments of the present disclosure relate to a method of commissioning an HVAC system and a related unit. Some embodiments of the method include providing a unit of the HVAC system with a plurality of condensate outlets such that the unit may be installed in a plurality of orientations; installing the unit in a preferred orientation; selecting one of the condensate outlets from the plurality of outlets that is positioned to receive condensate based on the preferred orientation; attaching a condensate line to the selected one of the condensate outlets; and installing a sensor along the condensate line, the sensor configured to detect a presence of a refrigerant that is heavier than air and would flow with gravity along with the condensate collected by the unit.

Abstract: 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.

Abstract: 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.

Abstract: 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.

Abstract: An air conditioning apparatus includes a cabinet having air inlet and outlet openings and an intense field dielectric air filtration system disposed in the cabinet between the inlet and outlet openings. The filtration system includes a field charging unit and a filter unit. The filter unit may be mounted for removal from the cabinet on spaced apart support brackets connected to the cabinet or to a frame of the field charging unit. Electrical contact elements may be supported by the support brackets for engagement with corresponding contact elements on the filter unit and charging unit for establishing electrical communication between a power supply and the charging unit and filter unit, respectively. A shorting bar is aligned with the contact members on the filter unit for discharging high voltage potential upon removal of the filter unit from the cabinet.

Abstract: An HVAC unit ventilator, particularly suited for schools and hotels, includes a single damper blade driven directly by a motor to control a supply air's mixture of return air and outside air. The damper blade is selectively pivotal to a full outside air position, a full return air position, and various intermediate mixed-air positions. The damper blade has flexible edge and end seals that create little if any frictional drag as the damper blade pivots to the intermediate positions, yet the seals provide a positive, tight seal when the damper stops at either the full outside air position or the full return air position. The unit ventilator includes a filter frame that not only supports an air filter but also provides the damper blade with sealing surfaces and structural support. For rigidity, the damper blade has somewhat of a box-like structure that is bi-directionally reinforced by ribs and triangular gussets.

Abstract: An air conditioning apparatus includes a cabinet having air inlet and outlet openings and an intense field dielectric air filtration system disposed in the cabinet between the inlet and outlet openings. The filtration system includes a field charging unit and a filter unit. The filter unit may be mounted for removal from the cabinet on spaced apart support brackets connected to the cabinet or to a frame of the field charging unit. Electrical contact elements may be supported by the support brackets for engagement with corresponding contact elements on the filter unit and charging unit for establishing electrical communication between a power supply and the charging unit and filter unit, respectively. A shorting bar is aligned with the contact members on the filter unit for discharging high voltage potential upon removal of the filter unit from the cabinet.

Abstract: An HVAC unit ventilator, particularly suited for schools and hotels, includes a single damper blade driven directly by a motor to control a supply air's mixture of return air and outside air. The damper blade is selectively pivotal to a full outside air position, a full return air position, and various intermediate mixed-air positions. The damper blade has flexible edge and end seals that create little if any frictional drag as the damper blade pivots to the intermediate positions, yet the seals provide a positive, tight seal when the damper stops at either the full outside air position or the full return air position. The unit ventilator includes a filter frame that not only supports an air filter but also provides the damper blade with sealing surfaces and structural support. For rigidity, the damper blade has somewhat of a box-like structure that is bi-directionally reinforced by ribs and triangular gussets.