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Search: Posts Made By: Bobinater33
Forum: Geothermal & Heat Pumps 02-15-22, 11:03 PM
Replies: 1
Views: 1,084
Posted By Bobinater33
Add vacuum pumps to the list of r290 hazards

Just had a vacuum pump blow up in front of me. I’m guessing it was from r290 bubbles in the oil. Not sure how bad it is because I refuse to look down but there’s a lot of blood and the wife won’t...
Forum: Geothermal & Heat Pumps 02-13-22, 06:19 PM
Replies: 0
Views: 1,044
Posted By Bobinater33
Compressor sizes

I’m beginning to wonder if I received a mislabeled scroll compressor. This thing is huge! If I put my 2 ton rotary compressor up next to the scroll it’s easily double it’s size snd the scroll takes a...
Forum: Geothermal & Heat Pumps 02-11-22, 10:30 PM
Replies: 5
Views: 1,625
Posted By Bobinater33
I’m going to loook into that. Very interesting . ...

I’m going to loook into that. Very interesting .


I went ahead and just bought me a 208/230v 60hz 1 phase LG Scroll for 240 bucks on surplus city liquidators
Forum: Geothermal & Heat Pumps 01-13-22, 08:33 PM
Replies: 8
Views: 1,626
Posted By Bobinater33
Ok thank you very much. It sounds like the 12kw...

Ok thank you very much. It sounds like the 12kw number must be the LRA not the running amps.
Forum: Geothermal & Heat Pumps 01-03-22, 11:34 PM
Replies: 8
Views: 1,626
Posted By Bobinater33
So the spec sheet for this particular compressor...

So the spec sheet for this particular compressor states its power rating being 12,63 Kw. When I do the conversion that equates to 17 horsepower!?


The prices for 20hp vfds are crazy snd make...
Forum: Geothermal & Heat Pumps 12-29-21, 02:04 AM
Replies: 8
Views: 1,626
Posted By Bobinater33
Any VFD/motor driver experts in the house?

So i have a handful of BLDC Compressors that are absolutely useless to me because I haven’t figured out an off the shelf way to drive them. I’ve burned up a Teco L510 3hp and a cheap huanyang 12a vfd...
Forum: Geothermal & Heat Pumps 12-21-21, 02:08 PM
Replies: 2
Views: 1,181
Posted By Bobinater33
Awesome thanks for the clarity!

Awesome thanks for the clarity!
Forum: Geothermal & Heat Pumps 12-19-21, 07:53 PM
Replies: 2
Views: 1,181
Posted By Bobinater33
How long of a vacuum until braze safely with r290

Every time I release all the r290 to fix a leak I pull a vacuum for 30 minutes or so and hope it’s safe to apply the torch to. Every time though it feels as though I’m just getting lucky that it...
Forum: Geothermal & Heat Pumps 12-19-21, 04:36 AM
Replies: 0
Views: 885
Posted By Bobinater33
(Tandem compressor)water heater update.

Here’s the gist of it:

-1x 10k btu r22 rotary comp in tandem with a 5k btu R32 rotary. (Yes I know ,diff oils , but at-least I scaled the suction line flow washer in size relative to Copelands...
Forum: Geothermal & Heat Pumps 12-17-21, 01:00 AM
Replies: 8
Views: 1,264
Posted By Bobinater33
It didn’t work out so well. It WAS a 12amp / 3 hp...

It didn’t work out so well. It WAS a 12amp / 3 hp Teco- Westinghouse L510 . Unfortunately all it did was make a high frequency noise , tripped on over current. Exploded the 3rd time.

It never...
Forum: Geothermal & Heat Pumps 12-17-21, 12:55 AM
Replies: 8
Views: 1,264
Posted By Bobinater33
I do have one on hand actually , but I believe...

I do have one on hand actually , but I believe these rotary compressors have one built onto them from the factory. I don’t think I’ll mess with the txv as per your guidance. Getting the ports on the...
Forum: Geothermal & Heat Pumps 12-17-21, 12:50 AM
Replies: 5
Views: 1,625
Posted By Bobinater33
Well appearently I did something wrong and fried...

Well appearently I did something wrong and fried the unit, all it would do is make a high frequency noise. It kept tripping on inverter over current before it finally went bang. I looked closer and...
Forum: Geothermal & Heat Pumps 12-10-21, 02:28 AM
Replies: 8
Views: 1,264
Posted By Bobinater33
Thank you, Should be up in the next couple...

Thank you,

Should be up in the next couple days and I’ll post my metrics. In the mean time is there a trick to having my pictures appear larger and not sideways ? I’ve fiddled with it a bit and...
Forum: Geothermal & Heat Pumps 12-09-21, 09:52 AM
Replies: 8
Views: 1,264
Posted By Bobinater33
Dang… no love

Dang… no love
Forum: Geothermal & Heat Pumps 12-09-21, 01:23 AM
Replies: 8
Views: 1,264
Posted By Bobinater33
A better angle of the condensing heat exchanger.

A better angle of the condensing heat exchanger.
Forum: Geothermal & Heat Pumps 12-09-21, 12:50 AM
Replies: 8
Views: 1,264
Posted By Bobinater33
As for details on the build… well. I must admit...

As for details on the build… well. I must admit that it makes no sense to do it the way I did. I’ve essentially reversed the advancements In HVAC technology back to the 90’s by doing away with the...
Forum: Geothermal & Heat Pumps 12-09-21, 12:21 AM
Replies: 8
Views: 1,264
Posted By Bobinater33
.delete please

.delete this thread
Forum: Geothermal & Heat Pumps 12-07-21, 11:56 PM
Replies: 5
Views: 1,625
Posted By Bobinater33
GMCC Inverter Rotary Compressors

Greetings,

Long time lurker and decided to register finally. Awesome forum. Finally a place for like minded individuals. The folks on HVAC talk and the various HVAC Facebook groups are a...
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