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Search: Posts Made By: Mikesolar
Forum: Geothermal & Heat Pumps 11-05-14, 05:50 PM
Replies: 57
Views: 36,977
Posted By Mikesolar
Have you been through it?

Have you been through it?
Forum: Geothermal & Heat Pumps 11-05-14, 04:51 PM
Replies: 57
Views: 36,977
Posted By Mikesolar
Jeff, that is absolutely wrong and is one of the...

Jeff, that is absolutely wrong and is one of the worst generalizations I have heard in a long time. And this argument about scientists is one reason why the climate change deniers will never believe...
Forum: Geothermal & Heat Pumps 02-15-13, 04:34 PM
Replies: 57
Views: 36,977
Posted By Mikesolar
I hate to disappoint but I haven't got it running...

I hate to disappoint but I haven't got it running yet. I am waiting for a hall effect flow meter to arrive which I will hook up to the top of a manual 4-way diverting/mixing valve that I am making...
Forum: Geothermal & Heat Pumps 02-13-13, 07:49 PM
Replies: 57
Views: 36,977
Posted By Mikesolar
What I did is to get the next size up tube from...

What I did is to get the next size up tube from the suction line, put 2 reducing tees at either end and braze the sucker up. The tees had to have the stops drilled out so the original suction line...
Forum: Geothermal & Heat Pumps 02-11-13, 05:55 AM
Replies: 57
Views: 36,977
Posted By Mikesolar
Here is the link to a guide for the SAFE...

Here is the link to a guide for the SAFE changeover to R290 (and maybe R1290) as well as a suitability guide. There are 2 documents but they are too big to post.

GIZ. Publications...
Forum: Geothermal & Heat Pumps 02-06-13, 06:01 AM
Replies: 57
Views: 36,977
Posted By Mikesolar
Nope, probably my ADHD, haha. I will look at it.

Nope, probably my ADHD, haha. I will look at it.
Forum: Geothermal & Heat Pumps 02-06-13, 05:31 AM
Replies: 57
Views: 36,977
Posted By Mikesolar
Brad, I have Coolpack as well but it is really...

Brad, I have Coolpack as well but it is really hard to get my head around mostly because they assume you know all the acronyms and what the proper ranges should be which takes more time than my ADHD...
Forum: Geothermal & Heat Pumps 02-05-13, 05:29 AM
Replies: 57
Views: 36,977
Posted By Mikesolar
I started with an R410 pot, drained the POE and...

I started with an R410 pot, drained the POE and put in MO. The fridgie boys say that 5% POE won't be a problem in running the system so i am not concerned about getting it all out BUT, I still...
Forum: Geothermal & Heat Pumps 02-03-13, 09:29 PM
Replies: 57
Views: 36,977
Posted By Mikesolar
I wonder if the viscosity issues of R290 and...

I wonder if the viscosity issues of R290 and mineral oil are the same with a scroll as they appear to be with the recip? Are you really getting the foaming or is there some other issue. BTW, a sight...
Forum: Geothermal & Heat Pumps 02-03-13, 08:59 PM
Replies: 57
Views: 36,977
Posted By Mikesolar
It is interesting that, at the end of the first...

It is interesting that, at the end of the first paragraph of section 2, they want to insult the compressor. Not sure how that will help:D
Forum: Geothermal & Heat Pumps 02-02-13, 08:33 PM
Replies: 57
Views: 36,977
Posted By Mikesolar
Jeff, what was the original refrigerant? If it...

Jeff, what was the original refrigerant? If it was R410 then the oil needs to be changed to mineral oil from POE. The foaming is one symptom, moisture in the system is another. POE is very...
Forum: Geothermal & Heat Pumps 02-02-13, 03:16 PM
Replies: 57
Views: 36,977
Posted By Mikesolar
Yup, I made a booboo. It is metering liquid which...

Yup, I made a booboo. It is metering liquid which goes to the evap and the bulb is measuring the temp on the discharge side of the condenser before the two HXs. The desired subcooling is around 15C...
Forum: Geothermal & Heat Pumps 02-02-13, 05:57 AM
Replies: 57
Views: 36,977
Posted By Mikesolar
The difference between that one and mine is that...

The difference between that one and mine is that the old westinghouse unit is that the TXV actually meters the liquid line to the condenser NOT the evap so is called a subcooling valve. The evap...
Forum: Geothermal & Heat Pumps 02-01-13, 07:04 PM
Replies: 57
Views: 36,977
Posted By Mikesolar
Everything I have read says to size the...

Everything I have read says to size the accumulator to contain the entire charge. I can't tell you how to size the suction line HX only that the 42mbtu unit I am making now has one about 8" long. It...
Forum: Geothermal & Heat Pumps 02-01-13, 06:02 AM
Replies: 57
Views: 36,977
Posted By Mikesolar
I use them all the time, in 2 ways. The simplest...

I use them all the time, in 2 ways. The simplest is as the diagram shows and could be fine provided you do not wish to have a reversing system to do cooling as well (or defrost, but there are other...
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