Emerson Electric Co., D/B/A Fusite, and Emerson Climate Technologies, Inc. v. Clarence Johnson and United States Liability Insurance Company

Court of Appeals of Texas·Decided October 18, 2018·No. 02-16-00173-CV·Published

Opinion

In the Court of Appeals Second Appellate District of Texas at Fort Worth ___________________________ No. 02-16-00173-CV ___________________________

EMERSON ELECTRIC CO., D/B/A FUSITE, AND EMERSON CLIMATE TECHNOLOGIES, INC., Appellants

V.

CLARENCE JOHNSON AND UNITED STATES LIABILITY INSURANCE COMPANY, Appellees

On Appeal from the 48th District Court Tarrant County, Texas Trial Court No. 048-268665-13

Before Walker, Kerr, and Pittman, JJ. Memorandum Opinion by Justice Pittman MEMORANDUM OPINION

This is a products liability case. Appellee Clarence Johnson sued Appellants

Emerson Electric Co., d/b/a Fusite (Fusite) and Emerson Climate Technologies, Inc.

(Emerson) after he was seriously injured by the explosion of a heating, ventilation,

and air conditioning (HVAC) compressor that was designed and sold by Emerson and

was equipped with a terminal designed and manufactured by Fusite. Appellee United

States Liability Insurance Company (the Insurance Company) intervened during the

underlying lawsuit. After a lengthy jury trial, the trial court rendered a judgment in

favor of Johnson and the Insurance Company. In six issues, Fusite and Emerson

challenge the legal and factual sufficiency of the evidence supporting the jury’s verdict

on Johnson’s design defect claims, marketing defect claims, and mental anguish

damages; they challenge the trial court’s decision to allow Johnson’s expert to testify

regarding design defects in the HVAC compressor; and they challenge the jury charge,

contending that it was erroneous as to the design defect and marketing defect claims.

For the reasons set forth herein, we affirm.

BACKGROUND

I. What is Terminal Venting?

An HVAC compressor and its motor are encased in a sealed cylinder. Power is

provided to the motor through a steel terminal sealed onto the compressor shell. This

terminal holds conductive pins that pass through it into the compressor. The pins

connect to a power source that powers the compressor. These pins sit in an

2 insulating agent, such as glass. Electrical malfunctions can cause excess current to

flow through the system and heat the terminal pins so much that they weaken the

glass holding them in place to the point that it can no longer hold them. The pressure

inside of the compressor can then expel the pins from the terminal, allowing the

heated refrigerant and oil inside the compressor to leak or shoot out. This event is

referred to in the industry as “terminal venting.” 1 “Terminal venting with ignition”

occurs when the oil and refrigerant ignite. A terminal vent caused Johnson’s injuries

in this case.

II. A Terminal Vent Occurs While Johnson Services the Emerson Compressor.

Johnson is a licensed HVAC technician. He has owned his own HVAC

servicing business since the mid-1990s. In 2012, one of his clients was Miller Food

Mart. On August 2, 2012, he replaced one of the two compressors in the Miller Food

Mart’s HVAC unit with the Emerson compressor that later injured him.

The day following the installation, Johnson received a report that the HVAC

unit was not working properly. When Johnson arrived at the store, his nephew and

assistant, Antonio Morris, had already arrived. Morris told Johnson that the fuses had

Terminal venting, or “hermetic leakage,” can also occur from arcing—when 1

the current “jumps” from the element carrying it to another element. Arcing generates high heat, and an arc to the terminal pins or some other element in the compressor can cause the glass holding the pins to heat enough to soften. A terminal pin can also fail—and thereby create a hole from which the compressor’s contents can leak—from pressure or physical damage.

3 blown in the disconnect box attached to the HVAC unit. This did not cause Johnson

any specific concerns about the new Emerson compressor because this particular

HVAC unit had a tendency to blow fuses. After the men replaced the fuses and reset

the breaker, Johnson turned the HVAC unit on and heard an unusual noise, “a

rumbling or something,” and he began to look for the source. Unbeknownst to

Johnson, the compressor had suffered an internal failure at some point between the

time of its installation and his return to the store to troubleshoot the problem on

August 3. Excessive heat inside the compressor had begun to soften the glass

insulation holding the terminal pins.

After isolating different components, Johnson determined that the sounds

came from the new Emerson compressor. Johnson decided to get an ohm reading2

on the new compressor.3 This reading required him to remove the cover from the

terminal. When Johnson removed the terminal’s cover, a terminal vent occurred; two

of the three terminal pins shot out of the Emerson compressor, allowing scalding hot

refrigerant and oil to spray out of the terminal. The oil and refrigerant mix ignited

2 “Ohm” is the standard unit of electrical resistance in the International System of Units; an “ohm meter” is an instrument that measures electrical resistance of a material to the flow of current. Ohm, Webster’s New Int’l Dictionary (3rd ed. 2002); Ohmmeter, Webster’s, supra. 3 Christopher Lucas, chair of the HVAC program at Texas State Technical College, testified that the resistance between the compressor windings and the compressor shell should measure “in the millions and millions and millions of ohms or infinity. . . . [I]n other words, . . . you don’t want there to be a path for the electricity to . . . touch the casing of the compressor.”

4 and covered Johnson in flames. As a result, Johnson suffered second- and third-

degree burns on over sixty percent of his body.

Importantly, a competitor of Emerson’s in the HVAC compressor market

includes warnings with its compressors to “[b]e alert for sounds of arcing[,] sizzling,

sputtering, or popping inside the compressor” and to immediately step away if such

sounds are heard. However, the Emerson compressor Johnson installed at the Miller

Food Mart did not include such warnings.

III. The HVAC Unit Is Not Connected to Its Power Source When Terminal Venting Occurs.

According to Johnson, before removing the terminal’s cover, he turned off

power to the HVAC unit by pulling out the fuse disconnect. 4 Morris initially told fire

investigators—on the day of the incident, while he was at Parkland Hospital’s burn

unit with his uncle—that he thought Johnson had left the main disconnect in the

HVAC unit. But, Morris also stated that he thought there was no power to the

Emerson compressor because he and Johnson removed some of its wires and that he

did not understand how the compressor could have exploded when it did not have

power connected to it. When firefighters arrived at the scene after the terminal

At trial, counsel and witnesses referred to this part as “the fuse disconnect,” 4

the “fuse box,” the “fuse disconnect box,” and the “main disconnect.” The term “main disconnect” was also used to describe the part of the unit that the fuse disconnect plugs into. Whatever term was used, it was used to refer to a part that, when removed, disconnects the HVAC unit from a power source.

5 venting, they found the fuse disconnect sitting atop the HVAC unit, where Johnson

said he left it.

IV. Johnson Sues Fusite and Emerson.

Johnson sued Fusite and Emerson, asserting claims of design defects and

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Emerson Electric Co., D/B/A Fusite, and Emerson Climate Technologies, Inc. v. Clarence Johnson and United States Liability Insurance Company, (Tex. Ct. App. 2018).

Emerson Electric Co., D/B/A Fusite, and Emerson Climate Technologies, Inc. v. Clarence Johnson and United States Liability Insurance Company (Emerson Electric Co., D/B/A Fusite, and Emerson Climate Technologies, Inc. v. Clarence Johnson and United States Liability Insurance Company) — published by Counsel Stack Legal Research, free access to 12M+ legal documents.

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