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Posted by Geoman on May 11, 2007, 11:50 pm
>>
>> >> wrote:
>> >>> 536cfm for a 3-6 ton system???
>> >>> Who & How measured?
>> >>> Was the system sized to heat or cool the 4100 sf?
>> >>> Sounds like an airflow issue.
>> >>> What's the temp drop/rise across the coil?
>> >>> What's the pressure drop across the coil? Clean filter?
>> >>> You should have around 400 cfm/ton as a rule...
>>
>> >>> Now the wet questions:
>> >>> GPM? GPM? GPM? GPM? GPM? GPM?
>> >>> Temps & pressures drop across the coaxial tube heat exchanger?
>> >>> (I'm sure those pete's plugs were installed on the inlet & outlet...
>> >>> Gauges,
>> >>> even better)
>>
>> >>> Closed loop, open loop, pond loop system?
>> >>> Vertical or horizontal loops? loop depths & spacing?
>> >>> How many holes did you dig & how much tube is in the ground?
>>
>> >>> Was/is the loop installer IGSPHA trained or certified, or even know
>> >>> what
>> >>> IGSPHA is/does/stands for?
>>
>> >>>www.waterfurnace.com/pdfs/products/SP1575.pdf
>> >>> Here's the link for your unit specs (first link found on a google
>> >>> search)
>> >>> It shows the units low speed air flow should be 1400 cfm & the high
>> >>> speed
>> >>> should be 2200
>> >>> I presume you have the proper airhandler & coil built for this
>> >>> system,
>> >>> if so, reduct the entire system because a 14" round ain't gonna cut
>> >>> it.
>> >>> Waterfurnace suggests/requires a variable speed unit with the 072 as
>> >>> well,
>> >>> and those are dependant on the static pressure of the duct...
>>
>> >>> It sounds like it's never hitting 2nd stage, which would cause the
>> >>> constant
>> >>> operation at high & low outdoor temps.
>> >>> If the 30dF is your design low temp, I'd question geo over airsource
>> >>> in
>> >>> the
>> >>> first place.
>>
>> >>> good luck
>> >>> geothermaljones
>> >>> st.paul. mn
>>
>>
>>
>> >>> > My house is 4200 sq.ft. My installer installed a EZ072 split heat
>> >>> > pump. 3 zones. We have had problems from the start. My total Duct
>> >>> > leakage Corrected to 25Pa is 536 CFM's. This is after he
>> >>> > corrected
>> >>> > my problems? My supply is 14'' round. Return is 9x16 . The unit
>> >>> > never stops at 30F or above 85F. We have been in our new home 1
>> >>> > year. I've had another Waterfurnace dealer, do a blower door test,
>> >>> > and two load cal.
>> >>> > which said we needed a 4.1 ton at 1940 cfm. Waterfurnace has been
>> >>> > no
>> >>> > help. The State inspectors can't get our problem fixed.
>> >>> > Any suggestions?- Hide quoted text -
>>
>> >>> - Show quoted text -
>>
>> >> The 536 cfm is duct leakage from a flow hood test , I had done. I have
>> >> a closed vertical with 2000 ft. total loop. The Intellizone is set
>> >> at 1850 max cfm's as the installor claimed to the inspectors. The air
>> >> handler is not listed as a matching unit, a York 5 ton which the
>> >> installor changed the motor two a 1 hp? I have had a lot of questions
>> >> which he acts like I'm a nut, Why did'nt you install air handler
>> >> which is recommended. Why is the line set differant than listed in
>> >> the manual. Why is my hot water heater 75 feet from the unit. And why
>> >> don't my system work right. Our installor has installed hundreds of
>> >> these units. Waterfurance is all he installs.
>> >> Thanks,RT
>>
>> >Like I said the installer was a hack, 100% crap for an installer.
>>
>> >No wonder WaterFurnace doesn't care about your problem, its not a
>> >matched
>> >system approaved by ARI. You have a six ton unit with a five ton
>> >condenser,
>> >14 " duct that can serve only a 2.5 ton AC. THEN he puts in a 1HP fan
>> >motor
>> >which does nothing but run up the electric bill.
>>
>> >Sorry Kjpro, but 14" round duct for a six ton unit doesn't work. As to
>> >the
>> >loop, forget about it at this moment, your duct system, its design, the
>> >mismatched equipment all spells tearing up all the walls in the home to
>> >correct this system. To do it correctly will cost almost double after
>> >you
>> >consider the cost of fixing up your home after they tear out the inside
>> >walls to gain access, the cleaning of it, and THEN it probably wont work
>> >correctly when this is done.
>>
>> >BTW, if a few of these hackers end up in court just MAYBE we can keep
>> >them
>> >out of the trade.
>> >I'm sick of hack jobs, I see them and quote against them just about
>> >every
>> >day...
>>
>> I call "Bunk"! The OP's story is just way too screwed up. I believe it
>> was the same old thing. He picked the lowest bidder and got what he
>> paid for. No way can a company that installs "hundreds" of them keep
>> doing it that badly and not finally get hammered.
>> Your story is screwed up and/or your system is most likely screwed up.
>> Find another waterfurnace dealer have him come out with a rep and get
>> it straightened out. Be prepared for lots of expensive repairs.
>> Tear out and Re-do. It should be about double or triple of what you
>> originally paid. Why do you think we love hacks so much.
>> Bubba- Hide quoted text -
>>
>> - Show quoted text -
>
> This OP's story is the way it is. Most don't know any better. I've
> had another waterfurnace dealer doing test. The installor must ask
> for a factory rep. I've been asking for a year, after two TXV's was
> replaced and 3 months later the compressor was replaced. I fill I've
> paided enought. I'm like you, how could he be a dealer for
> waterfurance. Since they went puplic, sells is all they care about.
> Or call waterfurance and ask for Bob Peck, ask him who installs the
> most units for him. Then you will know the rest of the story..
> Regards, RT
What the! Anybody notice the change in writing and grammar, this sounds
like TURTLE here!! Maybe this is a Troll trap???
Then you say you replaced and PAID for two TXV's and a Compressor since
Sept, which both are under warrnaty? I'm starting to believe your yanking
our chains here.
>
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