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View Full Version : Carrier 7.5ton packaged G/E



riverman
01-29-2007, 06:45 PM
anyone else finding some of the new Carrier packaged G/E RTU's popping the blower limit (set at 135 degrees) on the 7.5 ton unit only?

They use the same limit on the 7.5/10 and 12.5 ton unit and the ones giving us headaches are the 7.5. These units have the 224,000 btuh input. We think this limit is too borderline based on the air volume and heat capacity of the unit because we are finding it pops the limit up to the four times and then goes into the hard lockout. Anyone else finding this?

Tks

iwannahelp
01-29-2007, 08:33 PM
I have had that problem before. We got the o.k. from carrier to install an adjustable universal limit. I set it at about 150 and that seemed to work. I think it is the design of the unit that causes it for some reason.