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Tag Archives: fan control

Fan Maintenance and Energy Savings


Fan Maintenance and Energy Savings

Proper HVAC Fan Maintenance and Control can save Energy Dollars

According to the Department of Energy fans consume nearly 80 billion kilowatts of energy per year. Optimizing how fans work functionally in mechanical applications can reduce energy use and save energy dollars for end users. Assuming the design engineer selected the proper fan and proper installation in well designed system what can a facility manager do to save energy dollars and increase performance by looking at the fan systems in their building(s)? To make a good evaluation you need to look at several different factors in fan operation.

  • Fan Control
  • Fan Performance
  • Installation
  • Ductwork
  • Fan Maintenance

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Inside Air Handling Unit Blower Compartment


Inside Air Handling Unit Blower Compartment

Inside Air Handling Unit Blower CompartmentThis photo shows the air handler blower compartment. This is how the air handler is opened when the blower needs service or repair. The evaporator coil is on top of the blower which makes this an up-flow air handling unit. The supply air duct work will be above the AHU. Since this air handler is installed in a closet then the duct work is installed in the ceiling and makes this an ideal installation for AC since cool air falls.


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THURSDAY, July 02, 2015

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HVAC Tips: Helping You Learn

A thermocouple is commonly used in standing pilot gas furnaces and water heaters is technically referred to as a copple element and produces millivolts when heat is applied to the tip. This millivoltage is necessary to keep the pilot valve inside the gas valve open. If the pilot flame goes out, the thermocouple stops generating millivolts. Without the millivolts, the valve closes thus preventing gas from escaping when there is no flame. Thermocouples fail because of oxidation. It is recommended that you keep the pilot lit throughout the year to prevent excess oxidation. The thermocouple can be found in many different types of gas furnaces, gas logs, and gas water heaters. Learn How to Test a Thermocouple with a Multi-Meter

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