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jroni
Registered Users
Posts:1
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| 02/12/2008 6:30 PM |
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hi all. I'm looking at buying a old waterfurnace geo unit. It being sold
at a non profit resale store for $200 and includes no peripheral
devices. they tell me it needs a $1000 dollar replacement part but they
don't know what that part is , they also say that the fluid used for this unit is
being phased out in 09. i know very little about these machines. is
this a good brand, any ideas on what this $1000 part may be, can i use
a different exchange fluid and will i need to purchase any external
equipment like a water pump? also i plan on using a old well for the
ground heat source. it's about 4' diameter and 10' deep, i don't know
how much standing water is at the bottom. would something like this be
sufficient?
i have allot of questions but right now i just need to know if any of this
sounds like a good idea to any of ya out there who might have some
experience with this sort of thing. thanks all! |
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geodean
Registered Users
Posts:583
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| 02/12/2008 7:27 PM |
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This is a pretty scary deal. The $1000 part could be the fan, the compressor, the ECM board, the air coil, the water coil and a few more that I can't think of right now. You can't change type of refridgerant . What is the capacity of this unit? (how many tons ?) You need to know that before you can tell if you have enough water. 4' x 10' is pretty small, I don't see you getting enough capacity out of that. You would need an external water pump to get it to work.
I would stay far away from this scary deal. |
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Dewayne Dean
PalaceGeothermal.com
Why settle for 90% when you can have 400%
We heat and cool with dirt!
visit- http://welserver.com/WEL0114/- to see my system |
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tcook19440
Registered Users
Posts:1
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| 02/16/2008 9:23 AM |
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Have another question from a diyer,
Have tried to find out the electrical requirements for different systems so that I can either size a photo voltaic/ wind generator system to run the geothermal unit as well as the other electrical loads for the home with little response. Can anyone on this board fill me in?
Also, what are the odds of taking (if it has not been done yet) a standard unit and converting the motors over to run on 24 or say 36 volts?
Yes I may be thought of as crazy but want to cut cost of living as much as possible prior to retirement in about 5 years. Currently working on an earth bermed home plan.
Tom in TN
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GRickard
Registered Users
Posts:27
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| 02/16/2008 9:49 AM |
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Tom, something to keep in mind on the motors. If you have a 240 volt motor that draws 10 amps, then you would be able to use a 16 AWG wire. If you change that to a 24 volt motor it would then draw 100 amps, requiring you to use a #3 AWG wire. Thats alot of extra copper and takes a lot of space. Greg
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dmaceld
Registered Users
Posts:487
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| 02/18/2008 5:41 PM |
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Posted By tcook19440 on 02/16/2008 9:23 AM Also, what are the odds of taking (if it has not been done yet) a standard unit and converting the motors over to run on 24 or say 36 volts?
From a practical standpoint, the odds are somewhere between zero and none!!! Main reason being virtually all HVAC compressors of the size you're looking at here are hermetically sealed inside the can with the motor.
Johnny Carson's "The Great Karnac's" questions weren't the only things in the world hermetically sealed!!!
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Building house - what a way to spend retirement! |
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