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Posted by Jean on February 24, 2009, 11:55 am
wrote:
>Noon-Air wrote:
>> All of the Rheem systems that I install already have TXVs already
>> installed on them. They come that way from the factory, as well as
>> having a new filter/drier included for installation when the
>> refrigerant lines are brazed up. There is a reason that they are a bit
>> more expensive. Then there is also the "conditional unit replacement"
>> warranty on the Rheem Prestege series. You get what you pay for.
>>> What are your thoughts on adding TEV's to a 2 Ton, A410 heat pump?
>>> If my current situation requires a complete pump out, purge and
>>> re-install of refrigerant, would it be advantageous to install TEV's
>>> to replace pistons?
>>> My HVAC tech says it is half a dozen of one and six of the other
>>> unless the culprit is one of the existing valves.
>>> He says it helps under certain circumstances but also adds one more
>>> thing that could go wrong in the future. He said a correctly sized and
>>> installed unit should not absolutely require them.
>>> The extra cost at this time would be about $200 for valves and hard
>>> start capacitor.
>>> Any comments on TEV's vis-a-vis A410?
>Usually don't need start kit with Scroll compressors.
>A TEV/TXV has many advantages over a piston.
>Best combo, Scroll with a TXV.
>Many other factors to consider:
>http://www.udarrell.com/proper_cfm_btuh_duct_sizing_air_conditioning_systems.html
>My top hit page. - udarrell
Thanks a lot. I've got some more homeowrk to do.....
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