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Posted by daytona° on November 4, 2006, 10:05 pm
Correct here also......when ever it falls into the GRAY area....get new
>> Today I rec'd the first of 3 quotes that I plan to get to replace my
>> 25 yr old 4T Carrier heat pump and GE air handler.
>> The contractor did a Manual load J and determined I need a 4T unit.
>> (old system is also 4T).
>> He quoted Carrier Infinity19 HP/Infinity air coil ($10800), Carrier
>> Comfort HP/Infinity air coil ($10,100), and Comfort HP/Comfort air
>> coils ($9500).
>> His quote assumnes re-use of my old R22 line set. He claims Carrier
>> tells them that's acceptable practice assuming it's properly
>> evacuated. I'm curious if it really is acceptable practice?
>> I plan to get at least 2 more quotes but is this a basis for rejecting
>> this contractor??
> According to Mike Rinke at Rheem, If the lineset is *correctly sized*, and
> in good shape........it can be blown out with dry nitrogen to remove any
> pockets of old oil in the lines and used with R-410a. My own personal
> preference is to always replace the lineset when changing to R-410a
> wherever possible.
> The only other questions I would ask are what other corners is this guy
> cutting to be able to do it so cheap??
>
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> 25 yr old 4T Carrier heat pump and GE air handler.
> The contractor did a Manual load J and determined I need a 4T unit.
> (old system is also 4T).
> He quoted Carrier Infinity19 HP/Infinity air coil ($10800), Carrier
> Comfort HP/Infinity air coil ($10,100), and Comfort HP/Comfort air
> coils ($9500).
> His quote assumnes re-use of my old R22 line set. He claims Carrier
> tells them that's acceptable practice assuming it's properly
> evacuated. I'm curious if it really is acceptable practice?
> I plan to get at least 2 more quotes but is this a basis for rejecting
> this contractor??