TRICOIL^® Case Studies

Healthcare · Retrofit

Private surgery practice · Florida · 2022–2025

Dr. Gross Surgery Suite

A standard rooftop unit could not keep the operating room dry. A TRICOIL unit served by a medical-duty chiller replaced it and now holds the cool, steady conditions surgeons need.

69.3°FOperating room in operation

49.7% RHInside the ASHRAE 170 range

5.5 tonsFrom a nominal 4-ton chiller

Result: 15.4 MBH of reheat from water warmed in the precool coil, about 4.5 kW of electric heat the practice doesn't pay for. The trim heater ran at just 6%.

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Firing Range · State College

Fort Pierce, FL · 2009–2010

Indian River State College Firing Range

Code-mandated outdoor air met Florida humidity at the college's Public Safety Complex. TRICOIL let the design drop its electric reheat coil and keep the existing underground chilled water line.

40,900cfm supply, 9,300 cfm outdoor air

70 → 60%Range humidity target

$160,800Contract value, installed

Result: Electric reheat coil eliminated. Supplemental gas reheat runs only when needed, and the undersized underground chilled water line stayed in service.

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Federal · TRICOIL · Pistol Range

Dallas, TX · 2012 · GSA Schedule

Federal Reserve Bank of Dallas Pistol Range

A complete ventilation and air conditioning package for the Law Enforcement Unit's indoor range: laminar airflow down range, HEPA-filtered recirculation, and TRICOIL humidity control inside a secure, occupied bank.

14,400cfm laminar supply down range

99.97%HEPA on all return air

39 kWHot gas reclaim trim reheat

Result: Range held negative to the building by 1,440 cfm. TRICOIL handles the humidity control, and hot gas reclaim from the condensing unit provides trim reheat, so no new energy is bought for reheat.

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State Government

Higginsville, MO · 2015–2016

Higginsville Habilitation Center

The State of Missouri's engineer named TRICOIL as the basis of design for a 24-hour residential cottage. Two dedicated outdoor air units were built in modules small enough to carry through a 30-inch door.

2 × 2,000cfm dedicated outdoor air units

21.7 kWReheat with no new energy

~20%Smaller chilled water coil

Result: 6.2 tons of precooling recovered across both units. Each chilled water coil is 12.6 tons instead of 15.8.

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University · DOAS

Kansas City, MO · 2014

Rockhurst University

A TRICOIL dedicated outdoor air system for a new academic building, pairing an enthalpy recovery wheel with TRICOIL's recovered reheat. Airflow resets with room CO₂.

11,000cfm outdoor air, down to 6,000

65%Less chilled water load at design

63.7 kWReheat with no new energy

Result: With the wheel and TRICOIL together, the chilled water coil load is 23.7 tons instead of 67.7, and reheat needs no boiler or electric heat.

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University Housing

DeLand, FL · 2012–2013

Stetson University Sorority Row

TRICOIL air handlers replaced the air conditioning in seven occupied chapter houses, including Pi Beta Phi. The controls record shows them still holding humidity four years after start-up.

7Chapter houses

49–58% RHMeasured in 2017, at part load

$230,000Contract value

Result: Each house unit recovers 7.6 kW of reheat with no new energy. TRICOIL zone reheat keeps both the chapter room and the bedroom wing dry.

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Hospitality · Pilot

Cancún, Mexico · 2017–2018

Westin Lagunamar Cancún

A TRICOIL fan coil with all three coils in one factory fin pack and no pump was installed in one guest villa and logged side by side with the old unit next door.

61% vs 73%Room RH, TRICOIL vs old unit

400cfm per room fan coil

No pumpBuilding chilled water drives it

Result: Overnight, the TRICOIL room stayed drier while running cooler: 73.4°F and a 59°F dew point, against 75.0°F and 66°F next door.

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