Unfortunately, it sounds like this guy is telling you the truth. The
new 13 SEER (seasonal energy effiency ratings) standards that went into
effect at the beggining of 06' have put several other homeowners as
well as large apartment complexes and municipalities in the same
situation. Older systems do not have a TXV or thermostatic expansion
vavle which will keep them from operating properly with newer
equipment. In this case, the best advise would probably be to avoid the
local jack-leg "tech" who may offer to only change out one of the units
to save you money.
Big Daddy wrote:
Well, now. Supposing the fellow replaced the evaporator. The old one
didn't have a TXV, and the new one would. What's the problem?
The only problem I can see if the compressor is low starting torque,
and requires the orifice to rapidly equalize the system pressures.
Christopher A. Young
You can\'t shout down a troll.
Its not worth the trouble to explain it to you because you just don't have a
How many evap coils did you replace last week?? last month?? last year??
Did that evap coil have a piston or a TXV??
Never mind.... you still don't understand how to correctly balance the
refrigerant charge in a system, nor the physics or thermodynamics behind it.
Definately a gas leak. Look for signs of oil, they are a strong
indicator for a leak.
This spring, when we had the freon filled, we asked
Dye was a good option.
Not true. Not easy but not true. Apply additive as recommended by
email@example.com to seal leaks if the losses are small would be
lowest cost solution.
I asked if we could replace the coils and he said he can't buy
Find another tech.
Find another tech.
He had to get one right eventually.
He needs to boost his christmas fund.
The size depends on the load applied. A heat load will determine the
needs. As for cost, it depends on unit capacity.
On 16 Jul 2006 21:53:29 -0700, firstname.lastname@example.org wrote:
Too bad this wasnt it... Units under fifty pounds can be re-charged
till the cows come home.
The May 14, 1993 regulations establish leak repair requirements to
further minimize emissions of class I and class II substances.
The rule states that appliances that normally hold a refrigerant
charge of fifty pounds or more are subject to the leak repair
An annual leak rate of 35 percent was established for industrial
process sources and commercial chillers, while an annual leak rate of
15 percent was established for comfort-cooling.
Where the leak rate is exceeded, the appliance must be repaired within
30 days. An alternative is to develop a retrofit or replacement plan
within 30 days, outlining action to retrofit or replace the appliance
within one year from the exceedance.
[Federal Register: August 8, 1995 (Volume 60, Number 152)] [Rules and
Regulations] [Page 40419-40444] From the Federal Register Online via
GPO Access [wais.access.gpo.gov]
Now back to the bozo bin for you.
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