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Inspecting HVAC Systems Topics include heating, venting, and air conditioning inspections. |
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#1
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Good Monring All:
I have heard and understand that there are two speed fans, and variable speed house fans that are intended to work less during the warmer days but do any of these actually control the speed of the direct vent fan? I inspected a home with a YORK gas furnace and while I was upstairs raising the thermostat, the agent and client witnessed some "strange noises" from the direct vent fan (its a newer furnace). While we standing there the little fan really slowed down in RPMs and there was very little CFMs coming out the supply ducts. I thought the direct vent blower should be a continuous speed regardless what the house fan is doing. CS |
#2
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Is this a dumb question?
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#3
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![]() Quote:
http://www.oklahomathermalinfraredimaging.com/ http://www.freedomexpressinspections.com/ Master HVAC Mechanic Retired Level III Thermographer # 8486 Infraspection Institute CMI Certified Master Inspector Residential/Commercial Inspections Moisture Intrusion Expert Witness 55 years in the Trades Okla State License # 130 580-268-3340 |
#4
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![]() Quote:
![]() Do you have the model number or the York? I couldn't find a York with variable speed draft inducer but the Trane XV 90 series does have a variable speed draft inducer. Every Trane furnace is packed with high-quality components. Each helps ensure that time after time, your unit will provide total comfort your family can rely on. The XV90 includes:
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#5
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Please Note:
Gary Reecher is a non-member guest and is in no way affiliated with InterNACHI or its members.
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Carrier and Bryant uses a variable speed vent motor.
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#6
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#7
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Kinda sounded like a commercial for a sec.
![]() Ed Figueroa Spotlight Home Inspection Service, LLC Bartlett, TN (901) 569-4997 |
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