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Asked 3 years ago By Fern
Updated 3 years ago By
Category: HVAC Controls
When trying to properly charge a package unit using dry bulb and wet bulb readings, where do I get my wet bulb reading? At  the return side or supply side of the RTU?
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Asked 3 years ago By justme
Updated 3 years ago By
I have a erv and the wheel is super dirty. Is is possible to clean it?
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Asked 3 years ago By Frank
Updated 3 years ago By
Category: HVAC Controls
I have a Jade Controller installed with Y1 as economizer, and Y2 mechanical (conv). I have economizer, and 24 volts going to Y2 in, and nothing on Y2 out. I waited 10 minutes and still no signal.  I was told stage 3 had to be changed to 0, I did that...
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Asked 3 years ago By AndyW
Updated 3 years ago By
Category: Barometric Relief
Our office building has a Carrier model 48TFE008 equipped with a MicroMetl Economizer model 0688-0201-54920. We have had a zone control system installed. I now have four separate zones each with a separate thermostat. This zone system closes and open...
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Asked 1 year ago By peter
Updated 1 year ago By
Category: Economizers
please provide the installation instruction for mixing box model MB-GP20TA
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Asked 3 years ago By Gymbo
Updated 3 years ago By
Category: Barometric Relief
I have a large gymnasium that uses two motorized barometric relief dampers. They are noisy and I'd like to get rid of them. I can't use standard relief dampers because sometimes the pressure is positive, and other times when school is in session the ...
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Asked 1 year ago By A Scozzi
Updated 1 year ago By
Category: Economizers
I am waiting for delivery of eleven 16 x 16 "cube" mixing boxes.   I would like to prefab some duct and order fresh air grilles but cannot find dimensions of the RA and FA dampers anywhere can you please provide.
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Asked 11 months ago By Geoff
Updated 11 months ago By
Category: General Questions
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Asked 1 year ago By Anonymous User
Updated 1 year ago By
Category: General Questions
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118
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Asked 6 months ago By dennis
Updated 5 months ago By
Category: Economizers
loking for mixing box  4000 cfm 40"x 40" - 24" high -it could be little different let me know thanks. It is for United Cool Air horizontal c-series unit 10 ton
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Asked 1 year ago By Anonymous User
Updated 1 year ago By
Category: General Questions
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Asked 9 months ago By Joel
Updated 9 months ago By
Category: General Questions
Do u have any locations in florida ?
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Asked 1 year ago By James
Updated 1 year ago By
Category: Economizers
I am working on a project, I suspect they did wrong connection on ductwork, can you take a look and give you r take?
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Asked 9 months ago By Lew
Updated 9 months ago By
Category: Curbs
What’s the warranty on your std curbs and seismic and vibration curbs
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Asked 1 year ago By Phill
Category: General Questions
What is adjusted static pressure and how does it work. My book says the formula is design static times 100?
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Asked 1 year ago By jose
Updated 1 year ago By
i cant find the correct size filter for this roof top unit its the outside metal filter i measured it and its a lil over 15" x a lil over 11" all filters i find online are exact sizes not over a little
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65
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Asked 1 year ago By Billy
Updated 1 year ago By
Category: HVAC Controls
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Asked 1 year ago By Joseph
Updated 1 year ago By
Category: General Questions
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Asked 1 year ago By Ag Primatic
Updated 1 year ago By
Category: General Questions
At the end of this article, you state "The next article will delve into practical HVAC applications using Enthalpy & Dry Bulb sensors." Was there ever a next article? Thanks, Ag Primatic
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Asked 1 year ago By Cliff
Updated 1 year ago By
Category: Economizers
Do you make a 100% Motorized Outside Air Damper & Hood for York's 25 - 40 Ton Rooftops
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51
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Asked 1 year ago By Amol
Updated 1 year ago By
Category: General Questions
IS there any dynamic loading on Ducts occur while handling the Air? Due to change in Air volumes? or it is just a static loading?
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Asked 1 year ago By DannyBoy
Category: HVAC Controls
Stage1 - ECM  Motor - just Not getting below 1265CFM -4ton so No Cool Coil Stage 1 Just Blows  Humidity Straight Back Up to 64% from 54% Also the Stat Why is It all Locked Down to Max of 9 Min.  Stage 1 - After the House is Cool and Coil is Cold - Ho...
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Updated 1 year ago By
Category: Economizers
Please advise if you can provide price and details Need QTY(2) Air Flow Measuring Stations for Carrier Model 50A3-040-2G52GFQ Rooftop similar to Trane TRAQ assembly
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Asked 1 year ago By Anonymous User
Updated 1 year ago By
Category: General Questions
Hi there, I need to purchase belts for a Micrometl Model: EVHFEED49X0F0AKEFG-A Where in Chicago can I purchase theses belt. Control Heting & cooling. 773 252-7704 Thank you very much, George Rod.
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Asked 1 year ago By
Updated 1 year ago By Anish
Category: Economizers
Hi, When we are doing free cooling of workspace using ambient fresh air and cutting of chilled water,what will be the best way to exhaust excess fresh air taken from outside. Solution details. we get in 70% of fresh air when ambient temperature/humid...
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