Emerson Electric Co. D/B/A Fusite and Emerson Climate Technologies, Inc. v. Clarence Johnson

CourtTexas Supreme Court
DecidedApril 16, 2021
Docket18-1181
StatusPublished

This text of Emerson Electric Co. D/B/A Fusite and Emerson Climate Technologies, Inc. v. Clarence Johnson (Emerson Electric Co. D/B/A Fusite and Emerson Climate Technologies, Inc. v. Clarence Johnson) is published on Counsel Stack Legal Research, covering Texas Supreme Court primary law. Counsel Stack provides free access to over 12 million legal documents including statutes, case law, regulations, and constitutions.

Bluebook
Emerson Electric Co. D/B/A Fusite and Emerson Climate Technologies, Inc. v. Clarence Johnson, (Tex. 2021).

Opinion

IN THE SUPREME COURT OF TEXAS ════════════ NO. 18-1181 ════════════

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

v.

CLARENCE JOHNSON, RESPONDENT

══════════════════════════════════════════════════ ON PETITION FOR REVIEW FROM THE COURT OF APPEALS FOR THE SECOND DISTRICT OF TEXAS ══════════════════════════════════════════════════

Argued October 6, 2020

JUSTICE BLAND delivered the opinion of the Court.

For over a decade, an electric terminal manufacturer made two functionally identical

terminals for essentially the same cost. The difference was that the older of the two designs was

significantly more susceptible to catastrophic failure. A corporate affiliate of the terminal maker

elected to use the older product in manufacturing new air conditioning compressors.

An experienced heating, venting, and air conditioning technician purchased and installed a

compressor containing the older terminal design. Despite his experience in the HVAC industry,

the technician could not know that the brand-new compressor incorporated the outdated

technology inside the unit; nor did he know that the unusual noise emitting from the new

compressor the day after he installed it was a sign of imminent danger. When the compressor became overheated, the terminal emitted scalding pressurized fluids that ignited and covered the

technician, resulting in serious burns.

A jury concluded that the older terminal design was unreasonably dangerous and that the

design and the failure to warn of this hazard caused the technician’s injuries. The trial court

rendered judgment on the jury’s verdict, and the court of appeals affirmed. The manufacturers seek

to overturn the verdict on legal-sufficiency grounds, or to have another trial due to jury charge

error. We conclude that legally sufficient evidence supports the jury’s design-defect finding and

that the trial court’s jury charge did not result in an improper verdict. We therefore affirm the

judgment of the court of appeals.

I

A

Clarence Johnson, the respondent, is an experienced and licensed HVAC technician.

Johnson maintained the air conditioning units on the rooftop of the Miller Food Mart in Fort Worth

for two years before the accident. In August 2012, the Miller Food Mart owner called Johnson

because the store’s air conditioning was not working. Johnson determined that the HVAC unit’s

compressor would have to be replaced. That day, Johnson purchased and installed a new

compressor, made and sold by petitioner Emerson Climate Technologies. The compressor

incorporated an electric terminal designed by petitioner Emerson Electric Company, sold under

the business name of “Fusite.”

The Emerson compressor contains an electric motor that pumps refrigerant fluid through

an HVAC unit. To do so, the compressor must keep the fluid under constant high pressure and the

unit must remain sealed airtight. Electricity enters the compressor through the terminal to run the

2 motor. The electricity travels through the terminal to the motor on metal pins encased in insulating

glass. In the event of an electrical surge or arcing inside the compressor, the compressor, the

pressurized fluids, and the terminal pins can become overheated. Overheated pins weaken the

Fusite terminal’s insulating glass. When the insulating glass weakens, it does not hold the terminal

pins in place. The heated, pressurized contents inside the compressor can expel the pins, spraying

scalding refrigerant and oil through the no-longer-sealed electric terminal.

The unintended release of a compressor’s pressurized contents when the seal breaks on the

terminal is known in the industry as “terminal venting.” To mitigate the risk of terminal venting,

Fusite places a horizontal groove on at least one terminal pin. In the event of a power surge, this

pin snaps at the groove and cuts off power to the motor inside the compressor. The groove prevents

the pressurized contents from pushing out the pins and venting.

The electric terminal welded to the compressor in this case was a Fusite 600 series model.

In this model, the horizontal groove on the pin is etched on the lower part of the pin, inside the

compressor’s insulating glass. Although the groove eventually cuts off power, it snaps too late to

prevent venting when the insulating glass that holds the terminal pins, exposed to high heat, fails

before the grooved pin snaps.

For at least fifteen years before Johnson bought the Emerson compressor involved in this

accident, Fusite marketed another terminal, the 700 series. Crucially, in this design, Fusite moved

the pin groove to just outside the insulating glass. This small change—which cost Fusite

nothing 1—interrupts a power surge before it weakens the terminal’s insulating glass. In Fusite’s

1 Though Fusite appears to have charged a ten-cent premium for the 700 series terminal over the 600 series, its corporate representative testified that moving the groove on the pin to its new location resulted in no cost increase. 3 testing results, the 700 series performed significantly better than the 600 series at preventing

terminal venting due to an overloaded electrical current.

Fusite marketed the 700 and the 600 series terminals side-by-side. Its corporate affiliate,

Emerson Climate, incorporated the older 600 series terminal into the new compressor that Johnson

purchased and installed. Johnson could not know the difference: the groove on the terminal pin is

concealed inside the terminal in both models. The only warning suggesting a risk from terminal

venting was a pictorial of a directional explosion.

The day after Johnson installed the new compressor, Miller Food Mart called again to

report continued air-conditioning problems. Johnson sent his assistant, Antonio Morris, to

investigate. Morris reported back that electrical fuses had blown. Johnson joined Morris to replace

the fuses and reset the breaker.

When Johnson turned the HVAC unit back on, he heard an unusual noise—“a rumbling”

that “didn’t sound threatening.” He did not know that the noise was consistent with electrical arcing

occurring inside the new Emerson compressor or that the noise was a warning sign of imminent

terminal venting.

Johnson traced the noise to the new compressor. He disconnected the power and knelt to

open the terminal cover to take an electrical reading. At that point, two of the terminal’s three pins

shot out, along with the compressor’s pressurized contents. The super-heated, pressurized fluids

from inside the compressor ignited and covered Johnson. Johnson suffered second- and third-

degree burns over sixty percent of his body. Morris was also splattered with the fluid and suffered

small burns.

4 As Johnson’s expert put it, the compressor experienced “full electrical catastrophic

failure.” Emerson’s corporate representative conceded that the most likely explanation for the

accident was that a high electrical current had degraded the terminal connection between the pins

and the insulation glass, causing the terminal to vent.

B

Johnson sued Emerson and Fusite, claiming that they defectively designed and marketed

the terminal and compressor. Johnson relied on expert engineering testimony to show that safer

alternative designs existed—namely, among others, Fusite’s 700 series terminal. The 700 series

design, Johnson contended, would have prevented the terminal venting in this case.

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Bluebook (online)
Emerson Electric Co. D/B/A Fusite and Emerson Climate Technologies, Inc. v. Clarence Johnson, Counsel Stack Legal Research, https://law.counselstack.com/opinion/emerson-electric-co-dba-fusite-and-emerson-climate-technologies-inc-v-tex-2021.