Tech Tips is another great way that Ferguson HVAC Air Cold Supply brings you more information without leaving your place of business. We have expert staff eager to share articles about the equipment you use. Read about solutions, best practices and user guides for all of your major equipment needs.
Tech Tips
May 1, 2018
Open Compressor Windings
To determine if compressor windings are open or shorted, perform this simple test. Measure the Ohms across 3 compressor terminals using an open continuity setting on your multimeter Common to Run should have the lowest resistance Common to Start should have the 2nd largest resistance Run to Start should have the largest resistance In all […]
June 18, 2016
Using an R-410A Flare Tool
The R-410A flare tool will create a defined 45 degree angle in the copper so it will seal tightly against the flare fitting. Older flare tools will not create a tight seal. When installing mini-splits, flares are required on each end of the line set to connect the evaporator and condenser. Since R-410A is a […]
June 15, 2016
The Importance of a Torque Wrench When Installing Mini-splits
To ensure the accurate tightness of fittings, it is important to use a torque wrench when installing mini-splits. In heat pump applications, the expansion and contraction of the suction and liquid lines tends to weaken the flare connections. To make sure you have a strong connection, flare connections should be made as follows. First, set […]
June 15, 2016
How To Calculate Fan Size for Bathrooms
To properly size a bath fan, you can follow the recommendations from the Home Ventilating Institute (HVI) guidelines: Fan Sizing for Bathrooms Under 100 SQ. FT. The standard rule for bathrooms 100 square feet or smaller is one CFM per square foot of the bathroom. To find the square footage multiply the length of the […]
June 15, 2016
How Much Can a Homeowner save with a High Efficiency Furnace?
The chart below shows the cost of operation for gas fired furnaces with various efficiencies. To find out how much you can save follow these simple steps: Select the age of your furnace from the left hand column. Then, estimate the output of your furnace. The output can be found on the furnace plate. Your […]