Air Handler Fan Curves - Educational Use

[paul.m.peterson]

Hi,

I am a student at Washington State University, and our project requires us to select a fan curve for the HVAC system that we have designed for a home.

After an exhaustive search of air handler manufacturer websites, I have only been able to find fan performance curves for commercial systems. I am at my wits end in trying to locate fan curves for residential air handlers.

What I am specifically looking for is the fan curves for the Trane Hyperion XL air handler; their website recommended this for the size home for which we are designing. However, anything, for any other brand you may have, would be greatly appreciated!!

Thanks much,
Paul

[beshvac]

I have never seen a fan curve for residential. you could take the table data and plot your own curve vs. blower speed.

[hvacvegas]

]
What I am specifically looking for is the fan curves for the Trane Hyperion XL air handler; their website recommended this for the size home for which we are designing.

Thanks much,
Paul

Huh?
I'm sure (any hvac manufacturer) would recommend the (their product) for that house.

Your gonna have to plot your own fan curve. Your not going to find one for residential.
Maybe thats part of your project?

[SBKold]

Is a blower performance chart what you need?

That shows what cfm at what static pressure the air handler is pushing

[paul.m.peterson]

I don't have an issue with plotting my own curve. We characterized a centrifugal fan in another experimental design class, so I would be happy to do that.

However ... I can't even find the data to plot!! I asked Trane for data, but what they gave me did not provide the full range of data, i.e. dead-headed static pressure with zero flow through full flow with zero static pressure.

If anyone has the data, please, please post it on here so that I can get this project done. I have other feelers out to other companies, but really need this information as quickly as possible, as the project is due in another two weeks and this is the last missing piece of the puzzle (already have the system curves developed).

Thanks again,
Paul

[paul.m.peterson]

Is a blower performance chart what you need?

That shows what cfm at what static pressure the air handler is pushing

SBK, that would be terrific. Data or chart, with various fan speeds.

[paul.m.peterson]

I have never seen a fan curve for residential. you could take the table data and plot your own curve vs. blower speed.

John ... do you have the tabulated data? Need an air handler for a 3200 ft² home.

[dan sw fl]

pages 6 to 10

[paul.m.peterson]

Thanks Dan!! This and an ASHRAE handbook will make for some ... well ... long nights ... the price we pay.

Best regards,
Paul

[dan sw fl]

HYPERION

[motoguy128]

Beat me too it. I was going ot post a pdf. for a XV80... which would be similar... just a little less efficient.

[paul.m.peterson]

Thanks so much gents ... very much appreciated!

[tipsrfine]

You may want to put a footnote in your report that points out that the blower performance chart is pretty much a work of fiction. This is because of the way that the blower is tested in the lab as compared to what kind of duct systems the typical blower is connected to in residential installations. "Fan system effect" will alter the actual fan curve numbers; meaning you may measure what the static pressure is, but how many cfm's that blower is actually moving can be much less than what the performance chart says it's moving.