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Monthly Archives: January 2013
Refrigerant Filter-Driers
Filter-driers play a very important role in the operation of air conditioning and refrigeration systems. At the heart of the drier is the desiccant held in its cylindrical metal container. As important as the filter-drier is, many actually do not … Continue reading
Posted in HVAC Tech Support
14 Comments
Vent Temperature as a Diagnostic
On 90+% high-efficiency furnaces, what should the vent temperature be? To start this discussion, you first need to understand how the venting system is tested for a 90+% efficient furnace. Temperature testing is done to assure the materials (ie. schedule 40 … Continue reading
Posted in HVAC Tech Support
2 Comments
New Construction Furnace Usage
With the economy slowly turning around, new home construction has started to pick up again — this is good! Since new home construction is making a come back, it is time to remind everyone about the practice of using the … Continue reading
Posted in HVAC Tech Support
2 Comments
ECM “Emergency” Motor Replacement
As I promised, since the world did not end on 12/21/12 with the end of the Mayan calendar, here is my first post of the NEW YEAR. Simple Scenario —– Here it is the middle of the night — it’s … Continue reading
Posted in HVAC Tech Support
10 Comments
Proper Troubleshooting
One of my very early post was titled Are You A Parts Changer and I had a couple of calls today that made me think it was time to re-post this with some changes. There are some basic rules to troubleshooting. … Continue reading →