Retrofit assembly for operating a motor of an HVAC system as a multi-stage motor and an HVAC system including the retrofit assembly

Patent metadata

Field	Value
Publication number	US-10161650-B2
Application number	US-201514724477-A
Country	US
Kind code	B2
Filing date	May 28, 2015
Priority date	May 28, 2015
Publication date	Dec 25, 2018
Grant date	Dec 25, 2018

Abstract

Retrofit assemblies and an HVAC unit including a retrofit assembly are disclosed herein. In one embodiment, the retrofit assembly includes: (1) a base plate, that is mountable to a face of a motor speed driver (MSD), having an attachment area, (2) a standoff bracket that is mountable to the attachment area of the base plate and having a configuration that secures the MSD in a position relative to an interior wall of the HVAC system and provides clearance between the interior wall of the HVAC system and the MSD such that wires can be routed between the MSD and the interior wall and (3) a control interface, electrically connectable between the MSD and a thermostat of the HVAC system, configured to differentiate thermostat calls from the thermostat and translate the thermostat calls to coordinate blower speeds for the blower motor via the MSD.

First claim

What is claimed is:

1. A retrofit multi speed driver mounting assembly for mounting to an interior wall of a heating ventilating and air conditioning system, the retrofit multi speed driver mounting assembly comprising:
a multi speed driver having an MSD mounting face;
a base plate having a rectangular shape and having a planar central portion that defines a base mounting face and having bent edges that extend away from the base mounting face at a right angle, and wherein the planar central portion is sized and configured to receive the MSD mounting face of the multi speed driver, wherein the planar central portion of the base plate has an area greater than the MSD mounting face of the multi speed driver when in an assembled position to define a mounting margin;
a sidewall standoff bracket coupled to a portion of the base mounting face of the base plate on the mounting margin, wherein the sidewall standoff bracket comprises a right angle plate that has a first side that is parallel to the central planar portion of the base plate when assembled and that is used to couple the sidewall standoff bracket to the base plate, the right angle plate further comprises a second side that is at a right angle to the first side of the right angle plate for mounting to a sidewall of the heating ventilating and air conditioning system; and
a backwall sidewall standoff bracket comprising a central planar portion and one or more standoff supports that extend from the central planar portion of the backwall standoff bracket at a right angle thereto, and wherein the one or more standoff supports is sized to create a space between the central planar portion of the backwall standoff bracket and a backwall of the heating ventilating and air conditioning system to form a wire chase.

2. The retrofit multi speed driver mounting system of claim 1 , wherein at least one of the bent edges is formed with an opening and further comprising a wire-binding strap inserted into the opening.

3. The retrofit multi speed driver mounting system of claim 1 , further comprising an electrical relay mounting plate coupled to a second side of the base plate on the mounting margin opposite the sidewall standoff bracket.

4. A retrofit multi speed driver mounting assembly for mounting to an interior wall of a heating ventilating and air conditioning system, the retrofit multi speed driver mounting assembly comprising:
a multi speed driver having an MSD mounting face;
a base plate having a rectangular shape and having a planar central portion that defines a base mounting face and having bent edges that extend away from the base mounting face at a right angle, and wherein the planar central portion is sized and configured to receive the MSD mounting face of the multi speed driver, wherein the planar central portion of the base plate has an area greater than the MSD mounting face of the multi speed driver when in an assembled position to define a mounting margin; and
a sidewall standoff bracket coupled to a portion of the base mounting face of the base plate on the mounting margin, wherein the sidewall standoff bracket comprises a right angle plate that has a first side that is parallel to the central planar portion of the base plate when assembled and that is used to couple the sidewall standoff bracket to the base plate, the right angle plate further comprises a second side that is at a right angle to the first side of the right angle plate for mounting to a sidewall of the heating ventilating and air conditioning system.

Assignees

• Lennox Ind Inc

Inventors

• Davis Ii Walter
• Perez Eric M
• Chanthalangsy Eric

Classifications

• F24F1/22

  Arrangement or mounting thereof · CPC title

• F24F11/77 Primary

  by controlling the speed of ventilators · CPC title

• F24F2013/207

  with control knobs; Mounting controlling members or control units therein · CPC title

• F24F11/46

  Improving electric energy efficiency or saving · CPC title

• Y02B30/746

  Cross-Sectional Technologies · mapped topic