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Water Quality Guidelines For Evaporative Cooling Products

February 5, 2005
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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
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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
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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
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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
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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
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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
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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
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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
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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
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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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