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Search: Posts Made By: RB855
Forum: Geothermal & Heat Pumps 01-08-20, 12:58 PM
Replies: 8
Views: 2,834
Posted By RB855
Very common issue here in the south. Mildew and...

Very common issue here in the south. Mildew and such grows in the coil and the heat cooks the stink out. Regular cleaning of the evaporator usually curbs it, but we use a product that's literally...
Forum: Geothermal & Heat Pumps 06-19-16, 09:50 AM
Replies: 4
Views: 6,398
Posted By RB855
I dont imagin the cop will suffer too much since...

I dont imagin the cop will suffer too much since the condenser will be getting conditioned inside air across it instead of 90 something outside air. I know its not going to be great since im already...
Forum: Geothermal & Heat Pumps 06-13-16, 08:34 PM
Replies: 61
Views: 21,028
Posted By RB855
That paints a much clearer picture of what's...

That paints a much clearer picture of what's going on. It's without doubt undercharged, the calculated SC at the 30min mark is 17*F where you have 4-5*. I would bring up the SC and re-evaluate the...
Forum: Geothermal & Heat Pumps 01-20-15, 09:59 PM
Replies: 34
Views: 22,066
Posted By RB855
(There are 2 pictures here. If none/one loads,...

(There are 2 pictures here. If none/one loads, refresh. My servers slow lol)
This isnt from this specific model (it had a smaller version of this), but relevant for heatpumps/coil discussion. ...
Forum: Geothermal & Heat Pumps 01-20-15, 09:30 PM
Replies: 34
Views: 22,066
Posted By RB855
(There are 2 pictures here. If none/one loads,...

(There are 2 pictures here. If none/one loads, refresh. My servers slow lol)
AC, the design changes I think affected me mostly because of my use of TXV which was sensing a colder vapor line on the...
Forum: Geothermal & Heat Pumps 01-19-15, 10:58 PM
Replies: 34
Views: 22,066
Posted By RB855
Not to take bloody forever to finish a project,...

Not to take bloody forever to finish a project, but things have once again occurred in development. Discovered that the evaporator between a heatpump and straight cool model differed. The heatpump...
Forum: Geothermal & Heat Pumps 12-31-13, 05:11 PM
Replies: 34
Views: 22,066
Posted By RB855
Now, Im absolutely not an expert on this stuff,...

Now, Im absolutely not an expert on this stuff, and should be fully verified before you use it to make any decisions. There are several things that must be considered when selecting a gas, type of...
Forum: Geothermal & Heat Pumps 12-31-13, 07:07 AM
Replies: 34
Views: 22,066
Posted By RB855
In my hurry to reply before bed, I forgot to...

In my hurry to reply before bed, I forgot to explain some of the bigger deciding factors of choosing r-134a. Using a constant of 54* evaporating, 150* condensing temperatures.
R-410a pressures...
Forum: Geothermal & Heat Pumps 09-26-12, 10:33 PM
Replies: 1,943
Views: 2,023,771
Posted By RB855
Everything you could possibly want to know, and...

Everything you could possibly want to know, and more about sizing ref piping.
PDF Link, large - 70pages (http://www.daikinmcquay.com/mcquaybiz/literature/lit_systems/AppGuide/AG_31-011_120407.pdf)
Forum: Geothermal & Heat Pumps 07-13-12, 10:10 PM
Replies: 1,943
Views: 2,023,771
Posted By RB855
1st post!

Finally finished reading all 127 pages of this string, what a read. I came upon it while looking for ways to improve upon a very similar project. Iv built a heatpump waterheater from a 12k btu...
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