A method of monitoring a HVAC system to detect erroneous sensor installation. The method includes determining whether a circulation fan has been operational for a first predetermined time interval. If the circulation fan has been operational for the first predetermined time interval, determining whether a cooling demand is present. If the cooling demand is present, determining whether the HVAC system has been conditioning air for the first predetermined time interval responsive to the cooling demand. If the HVAC system has been conditioning the air for the first predetermined time interval, determining whether a difference between an indoor air temperature value corresponding to an enclosed space and an air temperature value from a discharge air temperature (DAT) sensor is greater than a predetermined temperature value. If the difference is not greater than the predetermined temperature value, forwarding a message indicating that the DAT sensor positioned within a duct of the HVAC system is improperly installed.

A thermostat that is configured to be releasably secured to a wall mountable connector, wherein the wall mountable connector includes a jumper switch that permits an installer or other professional to easily form an electrical connection between different wiring terminals of the wall mountable connector in accordance with how particular field wires are connected to the wiring terminals of the wall mountable connector. The thermostat is further configured to automatically determine the position of the jumper switch of the wall mountable connector, and in some cases, change the control of at least some functionality of the thermostat and/or HVAC equipment depending on the position of the jumper switch.

To enable easy access and lead wire routing during maintenance, without causing ventilation hindrance. An electrical component box 14 is provided on the side of the outer surface of a lateral plate 113 of an outer shell 11 of a body unit, and a cable storage part 15 for storing a drawing section of a lead wire 143 drawn from the electrical component box 14 and guiding the drawing section in a predetermined direction is disposed on the side of the inner surface of the lateral plate 11.

The present disclosure relates to a centering system for a heating, ventilation, and/or air conditioning (HVAC) unit to be mounted to a curb. The centering system includes a centering wedge configured to couple to a base rail of the HVAC unit, the base rail having a lateral surface and a base surface along a length of the HVAC unit. The centering wedge includes an angled surface configured to extend between the lateral surface of the base rail and the base surface of the base rail. The angled surface is configured to contact the curb during installation of the HVAC unit to guide the HVAC unit toward a centered position on the curb.

Apparatuses, systems, and methods for providing non-expert installation of HVAC systems are provided. The HVAC system includes an indoor unit, an outdoor unit, a first pre-charged refrigerant line-set, a second pre-charged refrigerant line-set, and a line-set coupler, each containing pre-pressurized refrigerant securely positioned therein prior to engagement between two or more of the aforementioned elements. The first pre-charged refrigerant line-set is couplable between an indoor unit refrigerant port of the indoor unit and a first coupler end of the line-set coupler. The second pre-charged refrigerant line-set is couplable between an outdoor unit refrigerant pot of the outdoor unit and a second coupler end of the line-set coupler.

In some examples, a device can control an HVAC system within a building. The device includes a memory configured to store an actual configuration of the HVAC system and processing circuitry operably coupled to the memory. The processing circuitry is configured to determine which field wires connect a terminal to the HVAC system. The processing circuitry is further configured to determine an actual configuration of the HVAC system based on which field wires connect the terminal to the HVAC system and determine a geographic location of the HVAC controller or of the device. The processing circuitry is configured to determine that the actual configuration includes an irregularity based on the determined geographic location and generate an output in response to determining that the actual configuration includes an irregularity.

A ceiling concealed air-conditioning apparatus includes: a box-shaped air-conditioning apparatus body having an open bottom; and an exterior panel attached to an underside of the air-conditioning apparatus body. The exterior panel includes: a panel body covering the open bottom of the air-conditioning apparatus body; and a panel unit removably attached to a lower part of the panel body. The panel body includes an opening at an area where the panel unit is attached to the panel body, and further includes a string hanger to hang a string at a corner of the opening, the string hanger being integral with the panel body and protruding to an inside of the opening. The panel unit includes a holding part to hold the string on a surface of the panel unit facing the panel body, the holding part being integral with the panel unit. One end of a loop of the string is held by the holding part and the other end of the loop of the string is hung on the string hanger to connect the panel body and the panel unit with the string.

The present disclosure provides an air conditioner installation plate and an air conditioner. The air conditioner installation plate includes: a main plate, a clamping member on a surface of the main plate, the clamping member and the main plate collectively a clamping space; and a horizontal bubble, provided in the clamping space and filled with liquid, an air bubble being reserved in the liquid of the horizontal bubble; a transverse direction of the horizontal bubble is parallel to a transverse direction of the main plate, two position indicating lines being marked on a middle of the horizontal bubble at intervals along the transverse direction.

An outdoor unit of an air-conditioning apparatus includes a casing, and grasp portions provided at at least two respective positions at corner portions of the casing as seen in plan view. The grasp portions each include an outer peripheral portion forming an outer periphery of each grasp portion, and a finger hook portion protruding downward from an upper part of the outer peripheral portion and extending in a lateral direction of the finger hook portion. The outer peripheral portion includes a first opening provided such that a lower end portion of the finger hook portion is exposed as seen in a horizontal direction and a direction perpendicular to the lateral direction, a second opening provided below the finger hook portion and continuous with the first opening, and a third opening provided behind the finger hook portion and continuous with the second opening, the second opening and the third opening being provided at one of end portions of the outer peripheral portion which are located ends thereof in the lateral direction.

Disclosed is an air-conditioner including a front panel forming an appearance of a front portion, a circulator door disposed at the front panel and moving in an up-down direction so as to be opened and closed, a circulator module moving backward based on a product OFF command and moving forward based on a product ON command, and a controller controlling the circulator door to move in a downward direction so as to be opened and the circulator module to move forward based on the product ON command, whereby the circulator door and the circulator module may be efficiently controlled.