Service & Maintenance

Water Quality Guidelines For Evaporative Cooling Products

February 5, 2005
A proper water treatment program, administered under the supervision of a competent water treatment specialist, is an essential part of routine maintenance to ensure the safe operation and longevity of evaporative cooling equipment. Here are some treatment tips.
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Btu Buddy 22: Finding Excess Heat Exchanger Scale

January 20, 2005
In this edition of the Btu Buddy series, Bob goes on a no heat call and finds some large pieces of scale laying on a burner surface. Btu Buddy notes there are several possibilities for excess heat exchanger scale and helps Bob pinpoint the source.
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Heat Pump Electrical Component Checks

January 9, 2005
In performing service and troubleshooting on heat pump systems, there are various electrical components to be checked. This article provides information to aid in inspecting and servicing these components.
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Btu Buddy 21: A Problem Of House Windows Sweating

December 23, 2004
In this installment of the Btu Buddy series, Bob goes on a heating service call where all the windows in the house are sweating. Btu Buddy assists in investigating to find the cause.
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Ten Dumb Things Smart People Do When Testing Electricity

December 11, 2004
The pressures of getting a job done on time or getting a piece of equipment back on-line quickly can result in mistakes by even seasoned technicians. This article provides a reminder of what not to do when taking electrical measurements.
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Using The P-T Card As A Service Tool

November 24, 2004
The purpose of this article is to demonstrate the proper use of the pressure-temperature relationship, and to illustrate how it can be used to thoroughly analyze a refrigeration or air conditioning system.
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Btu Buddy 20: A Training Lunch With Btu Buddy

November 14, 2004
In this edition of the Btu Buddy series, Bob and Btu Buddy meet for a training lunch after the previous day's low oil in the sight glass service call. Btu Buddy discusses oil and oil circulation in an A/C system.
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Electric Motor Brake Horsepower Calculations

October 31, 2004
These motor calculations are useful wherever electric motors are used. These simple calculations can be used to solve motor installation and troubleshooting problems in a variety of applications.
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Btu Buddy 19: Compressor With Low Oil Level

October 14, 2004
In this installment of the Btu Buddy series, Bob encounters a compressor with very low oil level. Btu Buddy explains that the low oil level is a normal function of this system for this time of year.
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Understanding Heat Pump Sequence Of Operation

October 1, 2004
In order to service and troubleshoot an air-source heat pump system, a service technician must understand the unit's sequence of operation. Where the system varies from its normal sequence is a major clue to any problems.
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NEWSMakers: Doug Dougherty

Doug Dougherty, president and CEO of the Geothermal Exchange Organization (GEO) joins the program to discuss the latest happenings with GEO, including the drive to get included in state and federal definitions of renewable energy, plus the future of geothermal.  Posted on July 25.

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