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Asked 5 years ago By Gymbo
Updated 5 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 3 years ago By Stan
Category: General Questions
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Asked 3 years ago By Amol
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 3 years ago By jose
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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Asked 2 years ago By Lew
Category: Curbs
What’s the warranty on your std curbs and seismic and vibration curbs
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Asked 2 years ago By Rick Furance
Category: Curbs
Current HVAC unit: Carrier 48 DR 012 over a 77" wide by 70" roof opening (Carrier unit replaced an earlier, larger unit. Roof opening size was kept the same at the time). Replacement Unit: Trane YSC120F with base dimension 88 5/8" long (parallel to t...
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Asked 2 years ago By Arshad
Category: HVAC Controls
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Asked 2 years ago By Anonymous User
Category: General Questions
Can you please provide me specifications on your model MB-GP1TA-D00B?  Thanks,  Adam
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Asked 2 years ago By Anonymous User
Category: General Questions
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Asked 2 years ago By Mike
Category: Curbs
My OSHPD DSE has asked for information on the submitted vibration isolated curb 0403-372EH-04010. I cannot find any information on the MicroMetl curb pages. Am I wrong? Mike Mc Henry IOR 10810
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Asked 2 years ago By Anonymous User
Category: Economizers
we have a economizer we are connecting to a heat pump system model BR-229035. the wiring diagram sas see notes 4,5,&6 on page 5 of the instructions. there is no notes on page 5 or a page that has notes???
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Asked 2 years ago By Anonymous User
Category: General Questions
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Asked 2 years ago By bill
Category: Economizers
is the disc shaped sensor for the fan compartment or mixed air sensor
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Asked 8 months ago By Earl
I live in northern Maine and heat with a forced air oil furnace.  I recently discovered that I have a radon gas problem.  Will your ERV unit help bring radon levels down? V/r, Earl Lizotte
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Asked 8 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 8 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 2 months ago By Al
Category: Economizers
Please e-mail me the specification for the above reference Mixing Box economizer with Honeywell Jade W7220.
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Asked 5 years ago By justme
Updated 5 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 Ag Primatic
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 3 years ago By peter
Category: Economizers
please provide the installation instruction for mixing box model MB-GP20TA
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Asked 3 years ago By Cliff
Category: Economizers
Do you make a 100% Motorized Outside Air Damper & Hood for York's 25 - 40 Ton Rooftops
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Asked 2 years ago By Joel
Category: General Questions
Do u have any locations in florida ?
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Asked 2 years ago By Mike
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Asked 2 years ago By naresh
Category: HVAC Controls
how can yo say filters become more efficient , when loaded with more and more partical
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Asked 2 years ago By Mike
Category: Curbs
We are to provide adjustable pitch roof curbs for 2 Carrier Model 50HCCD07A1M6 rooftop units and 1 Trane Model WSC036H4 rooftop unit. The flat curbs that came with the units are model CRRFCURB003A01 for the 2 Carrier Rooftop Units and BAYCURB042AB fo...
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