Pre-Yale

• 1803 - Thomas Moore builds a box-within-a-box for the sole purpose of preserving food and calls it the “refrigerator.”
• 1882 - The electric fan is invented.
• 1902 - The first air conditioner is assembled to combat humidity inside a printing company.
• Ford's Model T is the best selling car of the early 1900's.

Ford's Model T is the best selling car of the early 1900's.

1930s

• The first self-contained room air conditioner is developed by General Electric.
• The Ford Motor Company introduces an after market heater to “air condition your V-8.”
• 1939 - Yale Mechanical is founded with a vision to provide HVAC systems with unsurpassed quality and service.
• Buick introduces the first electric turn signals in 1938.

1939 - Yale Mechanical is founded with a vision to provide HVAC systems with unsurpassed quality and service.

1940s

• Motorola develops an early form of the cell phone - two-way radios called “Walkie Talkies.”
• During World War II Yale installs oil heating systems for barracks at Camp McCoy in Wisconsin.
• Yale establishes the values that continue to guide the company today.
  • Respect for the Individual
  • Service to the Customer
  • Pursuit of Excellence
  • Commitment to Personal Integrity
• The 1940 Packard, the first car with a refrigeration system, is introduced.

During World War II Yale installs oil heating systems for barracks at Camp McCoy in Wisconsin.

1950s

• Room air conditioner sales exceed one million units with demand still exceeding supply.
• The first “rooftop” combination gas heating and electric cooling units are installed on the rooftops of low-rise commercial buildings.
• Yale installs one of the first large central air conditioning systems in the Leamington Hotel in downtown Minneapolis.
• Yale designs the first “Hot-Gas-By-Pass” system and “Ambient Lock-Out” control used in refrigeration systems.
• Yale moves to Clinton Avenue, South Minneapolis.
• 1958 - Cruise Control is first offered in the Chrysler Imperial, New Yorker and Windsor car models.

Yale installs one of the first large central air conditioning systems in the Leamington Hotel in downtown Minneapolis.

1960s

• Only 11% of all cars sold in the US are equipped with air conditioning.
• Air conditioning plays a vital role in John Glenn's mission as the first American to orbit the earth.
• Yale manufactures, patents, installs and services the “MYNAIR” spot coolers used around the world to condition space for mine workers.
• Yale forms a team of design/build contractors for turnkey design and installation of clean rooms for the computer and aerospace industry.
• Yale creates the indoor/dry sump system to enable year-round operation of water cooled air conditioning equipment.
• 1968 - The world's first electromechanical automotive air bag system is created.

Air conditioning plays a vital role in John Glenn's mission as the first American to orbit the earth.

1970s

• The Federal Trade Commission introduces the “Annual Fuel Utilization Efficiency” (AFUE) rating system, which rates furnaces based on efficiency.
• Yale develops, manufactures and installs counter flow computer room conditioning units for the computer industry.
• Yale designs and installs Minnesota's first central water source heat pump system.
• 1978 - The first completely electronic 4-wheel multi-channel anti-lock brake system is installed in trucks and the Mercedes-Benz S-Class.

Yale Mechanical draws on more than 30 years of data center project experience.

1980s

• 1981 - The IBM Personal Computer (PC) is introduced.
• 1984 - The first cell phones are made available to the public.
• Yale moves operations to a larger facility in Bloomington, MN to meet the demands of its growing business.
• Yale lands its first national service account.
• 1984 - New York is the first state to pass the seat belt law.

Yale Technicians solve the toughest problems.

1990s

• Early 1990's - The American government releases control of the internet, making communication possible at the speed of light.
• Yale becomes the Twin Cities largest service provider for HVAC services.
• Yale completes its biggest project to date, the ADC World Headquarters.
• Yale completes its first large design/assist stand alone Tier 3 Data Center.
• 1993 - GPS navigation systems are introduced.

Yale meets the unique cooling and heating needs of data centers.

2000s

• Yale has the largest service fleet in the Twin Cities.
• The Millwright division is launched to enhance Yale's range of capabilities within the industrial market.
• Yale establishes an in-house piping fabrication shop.
• Hybrid cars gain fast popularity.

Rated #1 in quick response.

Today

• Yale celebrates 70 years of making buildings work better.

Yale turns 70!

Sources: Yale Mechanical, SSAW Home Services and Automobile History on About.com.
* - Wisconsin Historical Society Image ID #40445, © held by Stacy Jalowitz
** - Postcard ca. 1915 provided by the Minnesota Historical Society