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Air Handler question:'rusting process" my is it fair to say

Customer Question
if it leaks & i...
Air Handler question:'rusting process" my is it fair to say if it leaks & i have a tech to find & fix by brazing i suppose that due to humidity in the attic VA (summers) that's its just a matter of time before another leak shows up.
Submitted: 2 years ago.Category: HVAC
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Answered in 4 minutes by:
10/19/2015
HVAC Technician: airheatman, HVAC Technician replied 2 years ago
airheatman
airheatman, HVAC Technician
Category: HVAC
Satisfied Customers: 8,502
Experience: Furnace, A/C and heat pump specialist.
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Absolutely if coil is over 7years old leaks are common due to the combination of metals,chemicals and the evaporator staying wet in ac mode.If you repair a leak, that will become the strongest point in coil and another leak will probably develop .The only exception would be that id existing leak was caused by something vibrating and rubbing a hole in tubing.

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Customer reply replied 2 years ago

ok airheatman will these newer aluminum a frames have a longer life ?i am contemplating a fix vs replace hair handler thanks your help AGAIN.

HVAC Technician: airheatman, HVAC Technician replied 2 years ago

The aluminum is supposed to hold up longer as we only have one metal .With the coils with copper tubing, there are 3 metals to deal with, copper tubes, aluminum fins and steel frame.With the new coils, everything is aluminum.

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Customer reply replied 2 years ago

ok

HVAC Technician: airheatman, HVAC Technician replied 2 years ago

Also the aluminum used today is much thicker due to higher operating pressures of the new refrigerants.Many manufacturers like Goodman make coils that can be used with either R22 or the new R410 so if you replace coil now, you can still use it if you upgrade outdoor unit later.

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