TECHNICAL FIELD

The present disclosure relates generally to temperature control systems, and more particularly to a termination block in a temperature control system, such as a heating, ventilation, and air-conditioning (HVAC) unit.

BACKGROUND

HVAC units include numerous copper tubes that are coupled to each other to define different refrigerant lines such as a liquid line, a discharge line, and a suction line. Said refrigerant lines are configured to carry a refrigerant therethrough and route the refrigerant to different components of the HVAC unit, such as a compressor, an evaporator, a condenser, a metering device, a filter drier, etc., during the operation of the HVAC unit. The connections made between different copper tubes and the components of the HVAC unit need to be reliable to prevent any refrigerant leaks in the field. Typically, the installation of the copper tubes in the HVAC units, i.e., coupling the copper tubes to each other and/or coupling the copper tubes to the components of the HVAC unit, may be done by brazing because brazing provides strong connections if carried out properly. However, to properly braze the copper tubes to each other or the different components of the HVAC unit, the copper tubes need to be positioned accurately at the joints where they are to be brazed. Conventional HVAC units lack adequate structures to support and position the copper tubes for proper brazing. Conventional HVAC units may also lack adequate support for installation of external pressure gauge ports such that they are not damaged during shipment of the HVAC unit. Conventional HVAC units may also lack adequate shelter from direct sun exposure for an outdoor ambient sensor of the HVAC unit.

This background information is provided to reveal information believed to be of possible relevance to the present disclosure. No admission is necessarily intended, nor should be construed, that any of the preceding information constitutes prior art against the present disclosure.

SUMMARY

In one aspect, the present disclosure relates to a termination block assembly of an HVAC unit. The termination block assembly includes a termination block defined by an elongated body. The elongated body comprises a hole formed therein. The hole is configured to install and securely retain a refrigerant pressure gauge port therein. The elongated body also includes a coupling aperture that is configured to couple the termination block to a frame of the HVAC unit. Further, the termination block assembly includes a mounting bracket that is coupled to the termination block and configured to mount a refrigerant filter drier to the termination block. The termination block is configured to mount the refrigerant filter drier and the refrigerant pressure gauge port thereto such that copper tubing to and/or from the refrigerant filter drier and the refrigerant pressure gauge port is held in position to assist with brazing the copper tubing to other copper tubing and/or components of the HVAC unit.

In another aspect, the present disclosure relates to an HVAC unit that comprises a refrigerant pressure gauge port and a termination block that is coupled to a frame of the HVAC unit. The termination block is configured to securely couple the refrigerant pressure gauge port thereto such that a first set of copper tubing to and/or from the refrigerant pressure gauge port is held in position to assist with brazing the first set of copper tubing to other copper tubing and/or components of the HVAC unit.

These and other aspects, features, and embodiments of the disclosure will become apparent to a person of ordinary skill in the art upon consideration of the following brief description of the figures and detailed description of illustrated embodiments.

