Geo Thermal noise..
Last Post 14 Apr 2019 02:10 PM by tommytx. 57 Replies.
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rock*1User is Offline
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17 Jan 2008 03:59 PM

We have a new Geo Thermal (new construction) however it seems very loud...is this the way the unit works...should it be so loud when the water runs through the system...

Palace GeothermalUser is Offline
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17 Jan 2008 07:38 PM
a correctly installed geothermal heat pump should not be noisy. I have been next to some that are so quiet you have to put your hand on them to see if the are running. Most make a soft humming noise. There are however a lot of variables. The better the heat pump, the more steps have been taken to make it quiet. If you bought a bottom of the line unit, it might be noisy. Is the noise coming from the fan, the circulating pump or the compressor? Each of these can make noise. If there is liquid refridgerant in the compressor, then it will be very noisy.

Sorry yours is noisy, if you give us more info, maybe we can help you figure it out.

good luck
Dewayne Dean

<br>www.PalaceGeothermal.com<br>Why settle for 90% when you can have 400%<br>We heat and cool with dirt!<br>visit- http://welserver.com/WEL0114/- to see my system
rock*1User is Offline
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18 Jan 2008 03:38 PM

Thanks for your input....the noise seems to be the water going into the system and then again when it leaves the system...does this help you or do you need more info...

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18 Jan 2008 04:35 PM
Is this on an open well, or a closed loop system?
Dewayne Dean

<br>www.PalaceGeothermal.com<br>Why settle for 90% when you can have 400%<br>We heat and cool with dirt!<br>visit- http://welserver.com/WEL0114/- to see my system
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11 Feb 2008 01:05 PM
Hi,
Sorry to resurrect an old thread that I did not start - I am having what sounds like the same issue as the original poster.  My system is quite loud - sounds like it is coming from the pipe taking water away from the unit.


We have had the unit for about 2 years.  It was quite loud - surprising to us.  We were told this was normal.  Eventually the loud noise stopped - I have no idea why this is.  A week or so ago, we shut the unit down to clean the spin-down filter leading into the unit (it was clogged with sediment, and had not been cleaned ever).

Upon starting the unit back up, the loud noise is back!

We have an open loop system - the water comes in through our well tank, and the water out goes out the same line as our sump.

Any ideas?  The geothermal guys are going to be coming out to assist with a water heater replacement, so if there is a problem, I'd like any ideas regarding what the problem could be. 

Any help appreciated. :)
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11 Feb 2008 01:16 PM
It sounds like you might have too much water flowing through the unit. For open loops most heatpumps recommend 2-3 gpm. Since your noise went away with a clogged filter, then it sounds like too many gpms. Have the geothermal guys check flow through the heat pump. There are a variety of ways to regulate the flow, they should be able to recommend one for you.
Dewayne Dean

<br>www.PalaceGeothermal.com<br>Why settle for 90% when you can have 400%<br>We heat and cool with dirt!<br>visit- http://welserver.com/WEL0114/- to see my system
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11 Feb 2008 04:59 PM
that's 3 gpm per ton...
Clark Timothy ([email protected])<br>Geothermal Heat Pumps: Heating and Cooling that's Dirt Cheap!<br>www.pinksgeothermal.com
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11 Feb 2008 06:20 PM
Posted By tuffluckdriller on 02/11/2008 4:59 PM
that's 3 gpm per ton...

Yes  2 - 3 gpm per ton.  Thanks. 

For closed loop systems the minimum is 3 gpm per ton.  On open loop systems  the minimum for most heat pumps is 2 gpm per ton.
Dewayne Dean

<br>www.PalaceGeothermal.com<br>Why settle for 90% when you can have 400%<br>We heat and cool with dirt!<br>visit- http://welserver.com/WEL0114/- to see my system
mjUser is Offline
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13 Feb 2008 10:30 AM
Thanks for the responses.  That sounds like exactly what is happening.  It sounds (and feels, when I wrap my hand around the pipe) like there is an awful lot of water going through the unit.

The manual for the unit also has specifications regarding flow (1.5 - 2 gpm per ton), so that's useful information.

I was trying to find out the tons of capacity for my unit - I didn't see anything on the labelling on the unit itself or in the manual.  It must be in there, I would think.  Is there are specific nomenclature or term I should be looking for here?  A cursory google search gave me the impression that a 3-ton system is typical for a residential install, but I'd like to know for sure what I have here.

Thanks again - this is really helpful to me.
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13 Feb 2008 10:34 AM
What brand and model number is it?
Dewayne Dean

<br>www.PalaceGeothermal.com<br>Why settle for 90% when you can have 400%<br>We heat and cool with dirt!<br>visit- http://welserver.com/WEL0114/- to see my system
mjUser is Offline
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14 Feb 2008 09:09 AM
It's a Carrier unit, full model number on the outside is 50YDV049KCB301
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14 Feb 2008 09:23 AM
I went to the Carrier site and didn't find any info.  It appears to be a 5 ton heat pump.  If this is the case, then you need 8 - 10 GPM flowing through the heat pump when it is running.  See if you can confirm that you model is a five ton by contacting Carrier.  Let us know what you find out.
Dewayne Dean

<br>www.PalaceGeothermal.com<br>Why settle for 90% when you can have 400%<br>We heat and cool with dirt!<br>visit- http://welserver.com/WEL0114/- to see my system
mjUser is Offline
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14 Feb 2008 09:38 AM
I think I get it now, after a little more online digging.

The Carrier GT-PX series has model numbers starting with 50YDV, and comes in four capacities, which are listed as 026, 038, 049, and 064.  I presume that these more or less equate to capacity in tons, so the 50YDV049, which I have, would then be a 5-ton model.

I had seen on the key that the 049 was the "size", but I hadn't equated "size" with "capacity" at the time.
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14 Feb 2008 09:59 AM
Posted By mj on 02/14/2008 9:38 AM
I think I get it now, after a little more online digging.

I had seen on the key that the 049 was the "size", but I hadn't equated "size" with "capacity" at the time.

the 049 probably means 49,000 btuh which would be a nominal 4 ton unit.
Dewayne Dean

<br>www.PalaceGeothermal.com<br>Why settle for 90% when you can have 400%<br>We heat and cool with dirt!<br>visit- http://welserver.com/WEL0114/- to see my system
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14 Feb 2008 10:05 AM
Ahh that makes much more sense.

I'll reply again once the situation is resolved.
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18 Feb 2008 03:09 PM
Just to wrap this up, issue resolved.  Took some time to get to, since we were also coordinating the replacement of one of our water heaters (2 year old unit going bad?  no good.).

The tech regulated the flow by monitoring the tempurature of the incoming water vs. the temp of the outgoing.  A little surprising to me, since the manual for my unit referred mostly to measuring the pressure drop across the heat exchanger.  But, the manual also had a table for the correct temp drop while heating - it was way out of range before, and is in range and whisper quiet now.

So, all is well - thanks much for the help. :)
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18 Feb 2008 04:17 PM
Glad to hear !
Dewayne Dean

<br>www.PalaceGeothermal.com<br>Why settle for 90% when you can have 400%<br>We heat and cool with dirt!<br>visit- http://welserver.com/WEL0114/- to see my system
derdipUser is Offline
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07 Sep 2008 11:29 PM

This is a great thread/site.

I am a geo-thermal newbie, and just starting to get proposals to outfit my house with geothermal units.  Specifically Carrier 50YDH026 and 50YDV026.  I noticed someone had the same brand, different size so thought it may be appropriate on this thread.

I have 2 questions:

(1) One company just proposed an open loop system (I have an existing well and they will drill another).  The well water tests clean (potable water test).  Can someone help me understand the reliablity of open versus closed?  Also the general cost difference?

(2) I have a spread out house needing two systems.  The company quoted me 2 Geo systems (50YDH026 and 50YDV026 + accessories + 1 well) of about $38,000 USD.  Parts: $22,300 | Labor $6,600 | Well/parts: $9000.  Since I am new, I don't know if this is in the right ballpark.  Does this sound about right?

Thank you, in advance!

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08 Sep 2008 11:28 AM
(1) One company just proposed an open loop system (I have an existing well and they will drill another).  The well water tests clean (potable water test).  Can someone help me understand the reliablity of open versus closed?  Also the general cost difference?

(2) I have a spread out house needing two systems.  The company quoted me 2 Geo systems (50YDH026 and 50YDV026 + accessories + 1 well) of about $38,000 USD.  Parts: $22,300 | Labor $6,600 | Well/parts: $9000.  Since I am new, I don't know if this is in the right ballpark.  Does this sound about right?



Open Loop:

1. Cheapest system to install, more so if you have an existing well already.
2. Requires water that doesn't have too many impurities in it, poor well water can be the early death of a Geo-system unit.
3. Generally requires a return well, but not always.

Closed Loop:

1. Generally much more expensive to install since it involved either digging huge trenches in the yard or several drill holes in the ground. 
2. Since it's a closed loop, the condition or quality of the water from a well doesnt matter, No well needed. 


This replacing an existing system that also had 2 zones? It's a little higher than I would like, but overall, it's not a bad price for two units. 
  
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11 Sep 2008 12:02 AM
Carrier 049 unit is a TTV049 Climatemaster. Water flow controls are best outside the building envelope as they are the source of flow noise. make sure they didn't alleviate the noise by letting water flow more freely.
Joe
Joe Hardin
www.amicontracting.com
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www.doityourselfgeothermal.com
Dig Your Own Comfort!
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