General Questions (47)

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Asked 3 months ago By FKC
Category: General Questions
What size BTU output furnace do I need in Tucson. Home is 2842 sq ft single story. Built in 2001. I have 2 furnaces currently at 60K btu output and two 3 Ton AC condenser units. Installer wants to replace old with 2 new American Std 48000 btu output ...
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Asked 3 months ago By Jose
Category: General Questions
Hello, I've been studying HVAC for about a month now reading several documents, standards & guides. One thing that it's not clear to me is this: Where I work we have subcontracted de HVAC design of some projects because here we don't have HVAC ex...
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Asked 3 months ago By NICK
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Asked 3 months ago By Anonymous User
Category: General Questions
There are 6 hvac exhaust machines outside my apartment, that I think go to my building. But they are so terribly noisy that it's impossible to sleep, study or even think strait. Can we turn them off? I think when we turn off the ac, one of them goes ...
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Asked 3 months ago By Dug
Category: General Questions
How many vents @ 10"x18" do I need for a five ton commercial system in a open room 60'x20'x18'.  
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Asked 1 year ago By Anonymous User
Category: General Questions
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Asked 1 year ago By GMan
Category: General Questions
Hoping you could tell me how to determine air flow in a concentric system.  Anything on this?
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Asked 1 year ago By jayakarthick
Category: General Questions
Unmistakably, this territory is involved with various sorts of windings. For example, sectional and trapezoidal winding, layer quits, spreading, taking away and beginning with the tweaked methodology are open. The CNC control can make certain working...
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Asked 1 year ago By Hot and Cold
Category: General Questions
I have a split level house. Three bedrooms are on the upper floor; the furnace is in the basement on the opposite end of the house. A dedicated supply duct comes off the furnace, across the house and up to the second floor.  There it forks off to the...
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Asked 1 year ago By Ed Kirk
Category: General Questions
Hello I am the instructor for the HVAC program at Palomar College.  We are in the process of starting a new HVAC program and I am looking for a source to design and fabricate some equipment for our program.  I was at the College of the Desert in Palm...
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Asked 1 year ago By Mike
Category: General Questions
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Asked 1 year ago By Anonymous User
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Asked 1 year ago By Dennis
Category: General Questions
In a typical 1/2 horsepower centrifugal fan, I've been told that if the static pressure is too low, the amperage draw goes up and the airflow goes down.  Is there a minimum recommended static pressure for a centrifugal fan?
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Asked 1 year ago By Sean
Category: General Questions
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Asked 1 year ago By Jim
Category: General Questions
Have a speedair 3 cyl.progressive air compressor,have access to and want to use  a dayton 3hp single phase farm moter,,,,,yes or no???
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Asked 1 year ago By Anonymous User
Category: General Questions
The difference between industrial and commercial grade fans construction is the following: Industrial equipment is specifically designed and built to stand up to the rigors of an industrial application. The differences are concrete and easy to spot.....
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Asked 1 year ago By Elgin
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Asked 1 year ago By EUM
Updated 10 months ago By Anonymous User
Category: General Questions
What impact on power consumption, equipment reliability and life does running a three phase air conditioner air handler on single phase power supply?
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Asked 1 year ago By Anonymous User
Category: General Questions
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Asked 1 year ago By Pat
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Asked 1 year ago By pb
Category: General Questions
can you over tonnage an ac unit? 2.5 to 3.5
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Asked 1 year ago By Pat
Category: General Questions
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Asked 1 year ago By jim
Category: General Questions
I have a big electric motor with a 6 groove sheave.  I have 2 v-belts each with 3 grooves.  Circumference of the belt is ~ 50'. Generic question is that if they are aligned proplerly, tensioned properly, and assumed to be same length, will the belts ...
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