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Waterfurnace Problems rodthacker 05-11-2007
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Posted by on May 11, 2007, 6:09 pm
>
>
>
>
> >> 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?
>
> > Are the numbers a typo? 4,200 sq ft. @ 4.1 tons of cooling?
>
> SQFT doesn't mean anything..... I have a home that I did here in south
> Mississippi that has 3,000 sqft of floor space and is heated and cooled with
> nothing more than a 14 SEER 2 ton heat pump.

Your right, Thanks

>>I think if a proper load cal. was done from the beginning. I wouldn't have a
6 ton unit. But, If the duct work is crap nothing will work right.


Posted by on May 11, 2007, 6:20 pm

>
> >
> >> 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?
> >
> > Are the numbers a typo? 4,200 sq ft. @ 4.1 tons of cooling?
>
> SQFT doesn't mean anything..... I have a home that I did here in south
> Mississippi that has 3,000 sqft of floor space and is heated and cooled
with
> nothing more than a 14 SEER 2 ton heat pump.


Yeah, but not everybody has equipment thats working properly and
transferring the rated btu's.

:-)



Posted by B-Hate-Me on May 11, 2007, 4:52 pm

> 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?

Punt?



Posted by on May 11, 2007, 4:16 pm
>
>
> > 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?
>
> Punt?

Thanks, I feel like I've been punted!


Posted by Geoman on May 11, 2007, 6:45 pm
Need to get a lawyer on this. The duct is grossly undersized for your
system. You have a six ton unit, a 14" round is good for about a 2.5 ton
system max. The return isn't big enough for even a 2 ton for our installs.

Now, if you failed to mention that each of the three zones have 14" round
then that's ok, IF they never shut down. Do you have controlled zones or
just three zones that supply air all the time and each is 14"

If the total supply is one 14" duct and your only getting 536 CFM's; then
there are tons of elbows, improper take offs, too small registers.

In other words, you need a lawyer. You may also need a certified engineer
for a written statement. What took place was in my opinion a crime.

BTW, Water Furnace doesn't care any more than any other manufacture. They
got their money and they will say that the unit will perform as specified if
installed correctly. Yours ain't.........




> 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?
>



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