Disclosed embodiments relate to a combination axial fan and LED lighting system configured to fit into the footprint of a standard ceiling tile. Disclosed embodiments further include ceiling tiles with a built-in fan and/or LED lighting. The disclosed systems may include a housing container and an axial fan. The fan has a fan cavity including air diversion mechanism to direct air from the fan cavity toward the lighting and fan components. The inventions include an airflow surface to direct air existing the fan cavity along an LED light fixture. Moreover, disclosed embodiments include one or more UV light sources which irradiate contaminants as air flows through the ceiling tile.

A fan assembly may include a base securable to a surface. The base may include a cavity and an inlet in fluid communication with the cavity. The fan assembly may also include a motor assembly disposed in the cavity. The motor assembly may be operable to draw air in through the inlet and into the cavity. The fan assembly may further include a nozzle coupled to the base. The nozzle may define a central axis oriented at an oblique angle relative to the surface and an outlet in fluid communication with the cavity of the base. The outlet may direct the air out of the nozzle in a direction generally parallel to the central axis.

This invention provides a ventilation kit adapted to be coupled to a recessed light fixture, and comprises two supporting members. The first is adapted to be coupled with at least one edge of the recessed light fixture, while the second is adapted to be coupled with the grid system of the ceiling. There is also through-hole for air circulation. Mounting the ventilation kit onto an existing recessed light fixture enables the existing recessed light fixtures to have either an air supply or air return ventilation feature. This invention also discloses a recessed light fixture assembly with either an air supply or air return ventilation feature.

A heating unit includes a housing defining a thermal cavity and has a first longitudinal edge and an opposing second longitudinal edge, a reflector assembly disposed within the thermal cavity, a heating element, and a lighting element. The housing defines a vent positioned at least one of laterally between a central longitudinal plane of the housing and the first longitudinal edge and laterally between the central longitudinal plane and the opposing second longitudinal edge. The reflector assembly is coupled to an interior surface of the housing. A spacer is positioned between the reflector assembly and the interior surface forming an air gap therebetween. The heating element extends within the central longitudinal plane and is at least partially surrounded by the reflector assembly. The lighting element is positioned along at least one of the first longitudinal edge and the opposing second longitudinal edge such that the vent is positioned laterally between the lighting element and the heating element.

A combination axial fan and LED lighting system configured to fit into the footprint of a standard ceiling tile. The system includes a housing container and an axial fan. The fan has a fan cavity including air diversion mechanism to direct air from the fan cavity toward the lighting and fan components. The invention includes an airflow surface to direct air existing the fan cavity along an LED light fixture.

A thermostat for a building includes a halo light emitting diode (LED) system including one or more LEDs configured to emit light and a halo diffuser structured around at least a portion of an outer edge of the thermostat. The halo diffuser is configured to diffuse the emitted light of the one or more LEDs around at least the portion of the outer edge of the thermostat. The thermostat includes a processing circuit configured to receive one or more data streams, determine whether the one or more data streams indicate a building emergency condition, and operate the one or more LEDs of the halo LED system to indicate the building emergency condition to a user.

An air heating cooling and dehumidification device for maintaining room air at a desired humidity and temperature includes an air to air cross flow heat exchanger (105) formed with cross flow first and second air flow paths (A) and (B), a primary air to liquid heat exchanger (110) in fluid communication with a liquid cooling fluid source (150) for dehumidifying air flow and a secondary air to liquid heat exchanger (115) for reheating the air flow after dehumidification.

Disclosed embodiments relate to a combination axial fan, LED lighting system and electric blue killer. The disclosed systems may include a housing forming an air chamber and an axial fan. The fan may include a fan cavity having an air diversion mechanism to direct air from the fan cavity toward the lighting, fan and electric bug killing components. The inventions include an airflow surface to direct air existing the fan cavity along an LED light fixture. The LED light fixture emits a blue or light blue light which attracts bugs. Moreover, disclosed embodiments include one or more electric bug killing devices to kill any bugs as air flows through the air chamber. The present invention may also include grow light fixture in the housing.

A combination axial fan and LED lighting system configured to fit into the footprint of a standard ceiling tile. The system includes a housing container and an axial fan. The fan has a fan cavity including air diversion mechanism to direct air from the fan cavity toward the lighting and fan components. The invention includes an airflow surface to direct air existing the fan cavity along an LED light fixture.

An apparatus includes a high side heat exchanger, a first load, a second load, a first plurality of lights, a second plurality of lights, a third plurality of lights, and a controller. The high side heat exchanger removes heat from a refrigerant. The first load uses the refrigerant to cool a space proximate the first load. The second load uses the refrigerant to cool a space proximate the second load. The first plurality of lights is coupled to the high side heat exchanger. The second plurality of lights is coupled to the first load. The third plurality of lights is coupled to the second load. The controller receives an indication of a detected malfunction in at least one of the high side heat exchanger, the first load, the second load, and in response to the indication, activates the first, second, and third plurality of lights.