Service & Maintenance

Preventing 'White Rust' on Galvanized Steel Cooling Towers

For over 50 years, evaporative cooling products have been manufactured from hot-dip galvanized steel. Life expectancy of these units, when properly installed and maintained, has been excellent. In recent years, however, there have been reports of “white rust.” The critical fact that needs to be recognized is that white rust is preventable.


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Btu Buddy 110: Burned Hermetic Compressor - Part 1

Bob and Tim were on their way to a no cooling call at a commercial building. When they arrived, they talked to the building manager and checked the thermostat. It was set at 72°F but the thermometer was reading 78°. Tim said, “The fan is running, so there is control voltage and the thermostat seems to be calling for cooling.”


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The Case for Hard Start Kits

During my 50 years in the HVAC trade, I have found that most technicians do not spend time learning about the compressor and the a/c system as much as they should. In their defense, they are simply too busy to take the time once they are out of school.


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Btu Buddy 108: Service Call on a Gas Furnace

Bob and Tim have been sent on a routine service contract call to a new customer. The system is a gas furnace with central air conditioning. After changing the filter and oiling the fan motor, Tim went to the thermostat and caused the furnace to come on and they were looking at the burner when Tim said, “That gas flame doesn’t look right.”


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2015 HARDI Fly-In

Highlights from HARDI's Congressional Fly-In in Washington, D.C.

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NEWSMakers: Clint Schreck

Clint Schreck, general manager, Columbus Worthington Air, Columbus, Ohio, discusses winning Angie’s List Super Service Award, how to handle online reviews, and much more.

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