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Posted by Don Ocean on June 5, 2008, 4:49 am
Bubba wrote:
> wrote:
>
>>> Veck wrote:
>>>> Hello all,
>>>>
>>>> I moved into my 3,200 sq. ft home about 1 year ago. I have 2 3.5-ton
>>>> Trane units (2TXCB036BC3HCAA). Last fall, I had to call the home
>>>> warranty people because my upstairs unit was not cooling properly
>>>> (could not maintain 77 degrees with 85-90 degrees outside). They
>>>> detected a leak and replaced the evaporator coil. Now that Summer is
>>>> on the way, I'm noticing similar problems. I've had a very
>>>> experienced HVAC person maintain my systems every 6 months (his visit
>>>> 3 weeks ago was his third time working on my systems). He verified
>>>> pressures and charged me with 2 lbs. 10oz of refrigerant.
>>>>
>>>> Since then, the upstairs is still not cooling properly. It was 85
>>>> outside yesterday and today and 80-82 inside. The unit is running
>>>> constantly. I don't believe it's freezing up because I can feel
>>>> airflow at each vent, but the air is not very cold as compared to the
>>>> air which comes out from the downstairs unit.
>>>>
>>>> The downstairs unit is located in my cool basement whereas the
>>>> upstairs unit is in the hot attic. The downstairs is using mainly
>>>> galvanized duct whereas the upstairs is using the insulated circular
>>>> duct. I've noticed the airflow coming out of the downstairs vents is
>>>> much more forceful than upstairs. Also the air coming out of the
>>>> downstairs unit is much colder. Unfortunately I don't have the
>>>> required instruments to measure the actual temperatures in these
>>>> cases.
>>>>
>>>> I've logged a call with my home warranty folks so hopefully I'll have
>>>> another pair of eyes on the problem. Any other thoughts on what the
>>>> problem could be?
>>>>
>>>> Thanks!
>>>>
>>>> /Brian/
>>>>
>>>>
>>>>
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>>>> alt.hvac - 26529 messages and counting!
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>>> Failure #1 = Trane Unit
>>> Failure #2 = Home Warranty Service
>>> Failure #3 = Hot attic, cool basement, not the problem. Refrigerant
>>> charge, that's the problem.
>>
>> Gotta love DIY... I just pulled 7lbs 12oz of *excess* refrigerant charge out
>> of a 10SEER 3 ton A/C.
>> That was the first time I had ever *seen* 95psi SP, and 475psi LLP with a
>> scroll compressor.
>
> Lemme guess.
> Either Stormy or new jersey was there before you?
> Bubba :-)
7 or 8 times. ;-p
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