Articles Tagged with ''maintenance''

Ice Breaker: Tips for Avoiding Callbacks

By Joe Marchese
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Contractors do not like to hear the word “callback.” They cost money and degrade a customer’s respect for and opinion of the service contractor. So how can a technician reduce the number of times he must revisit a repair? 


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The Professor: The Importance of Liquid Subcooling

By John Tomczyk
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This is the first of a three-part series covering the importance of liquid subcooling in a refrigeration or air conditioning system.


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Watkins Heating and Cooling Brings Comfort to Rescue Mission

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Watkins Heating and Cooling of Springboro, Ohio, announced a two-year commitment to provide free furnace and air conditioner maintenance to Hope House Rescue Mission, a homeless shelter in neighboring Middletown, Ohio.


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Btu Buddy 106: Heat Pump Service Call - Part 1

By Bill Johnson
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Bob and Tim have arrived at a home where the owner is complaining that the heat pump is not heating properly. It has been getting cold in the home during the late night and early morning hours. It’s really cold outside, about 10°F at night and 25° during the day.


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Beyond the Flange: Maintaining Chiller Systems

By Richard Grenz
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While the chiller is typically the most visible part of the system, other key components include chilled and condenser water pumps, cooling towers, heat exchangers, etc. This article focuses on maintaining these components “beyond the flange,” which are found in most typical building comfort cooling applications.


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Btu Buddy 105: Furnace Vent Problem

By Bill Johnson
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Tim and Bob have been sent on a service call to a new customer’s house. The homeowner has an unusual complaint. She said that she thinks she has a furnace problem because there is mold in her house. They don’t know what this can be all about.


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Can You Reduce Chiller Maintenance?

By Mike Taitano
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I simply don’t know of any way to reduce chiller maintenance (recommended scheduled maintenance), below industry standards and manufacturer recommendations, without reducing the system’s long-term efficiency and working life.


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The Professor: Megohmmeters for Preventive Maintenance

By John Tomczyk
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Megohmmeters (meggers) are electrical meters used to check the resistance and condition of the motor windings and the condition of the refrigeration and oil environment around the motor windings. A megger is nothing but a giant ohmmeter that creates a very large dc voltage (usually 500 volts dc) from its internal battery.


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Btu Buddy 104: Bob and Tim Continue Heat Pump Repairs

By Bill Johnson
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Bob and Tim have arrived back at the apartment building where they have been working for several days inspecting and making necessary repairs to the building’s split-system heat pumps. Bob said, “Check the list for another unit that seemed to have a problem and let’s take a closer look at it.”


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Work Vehicles Help Contractors Move Business Forward

By Cherie Preville
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As an industry, whether an HVACR contracting firm is doing service and maintenance or installations, employees need to go to the jobsite to perform their work. Because installers and service technicians have to be on the road for their job, some going to several jobsites in a day, they need vehicles to drive.


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