Art wrote:
Just had a tech check out one of my 3 HVAC systems. When the house
was built the contractor switched outside units between the upstairs
and basement so upstairs was too hot. I had them switch out the
obviously wrong sized outside units. I asked them if anything inside
had to be switched out and they swore everything was ok inside.

Upstairs never cooled well but we were never used upstairs much until
now.
So I had someone come out today and told him the story. He says the
metering unit orifice (piston) is too small upstairs and needs to be
replaced with bigger one at a cost of $193 for the part and $533. I
just called another guy to come in for a second opinion but I was
wondering if the estimate sounds reasonable if indeed this is the
problem.
Thanks in advance for assistance.

I have a few questions:
1. What is the size (Tonnage) of the upstairs and basement condensing units?
2. What is the size (Tonnage) of the upstairs and basement evaporator
coils?
3. Was the bid to replace the piston only or to replace the total metering
device?

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Moe Jones
http://www.MoeJones.info