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Search: Posts Made By: jeff5may
Forum: For Sale / Trade / Wanted / Web Finds Today, 08:44 PM
Replies: 1
Views: 42
Posted By jeff5may
Me. I flip, service and trade appliances (mainly...

Me. I flip, service and trade appliances (mainly washers and dryers) in my spare time.
Forum: Geothermal & Heat Pumps Yesterday, 11:48 PM
Replies: 5
Views: 137
Posted By jeff5may
Ok, from some quick napkin scribbling, the...

Ok, from some quick napkin scribbling, the refrigerant charge and outdoor side looks to be in the standard operating range. The bottleneck here seems to be the brazed plate heat exchanger and or too...
Forum: Geothermal & Heat Pumps Yesterday, 01:24 PM
Replies: 5
Views: 137
Posted By jeff5may
More data please. We can see the big picture...

More data please. We can see the big picture here, but details are lacking. Main question: what's the outdoor unit? Obviously rated for 2 ton, but what refrigerant is original and how does it...
Forum: Geothermal & Heat Pumps Yesterday, 01:08 PM
Replies: 12
Views: 655
Posted By jeff5may
Any progress on the heat pump idea? With the...

Any progress on the heat pump idea? With the original configuration (water cooler), if you flowed a gallon plus per minute through the original (water cooler) chilling tank, I would bet money it...
Forum: Geothermal & Heat Pumps Yesterday, 12:29 PM
Replies: 2
Views: 60
Posted By jeff5may
Ok so the main question is related to size and...

Ok so the main question is related to size and scale. How much heat do you plan on extracting from the ground? The higher the demand, the more water you will need. If you are planning on using a tank...
Forum: Introductions 01-15-20, 09:08 PM
Replies: 1
Views: 48
Posted By jeff5may
Welcome to the forums! Start a thread about it in...

Welcome to the forums! Start a thread about it in the heat pump section. Tons of details to clarify and goals to identify in order to ensure success.
Forum: Tools 01-14-20, 07:31 PM
Replies: 9
Views: 127
Posted By jeff5may
Same story here. Picked up a Troy-MTD-Bilt click...

Same story here. Picked up a Troy-MTD-Bilt click lock set this spring with a weed whacker, edger, and brush cutter heads off the local yard sale site. Super cheap, not running. Initial testing...
Forum: Geothermal & Heat Pumps 12-31-19, 09:36 PM
Replies: 18
Views: 550
Posted By jeff5may
What you speak of is a "multi-split" or "city...

What you speak of is a "multi-split" or "city multi" set up. Main idea is one big outdoor unit (with a variable speed compressor) that stars out to a number of independent zone units indoors. Look on...
Forum: Geothermal & Heat Pumps 12-28-19, 01:50 AM
Replies: 12
Views: 655
Posted By jeff5may
Sounds like a good ballpark figure to me. Also...

Sounds like a good ballpark figure to me. Also looks like you are ok with math as well. Trust me on this one: math up your sketch before you build it. Catching a conflict or shortcoming on paper...
Forum: Geothermal & Heat Pumps 12-25-19, 09:34 AM
Replies: 12
Views: 655
Posted By jeff5may
The important thing to know here is the heat...

The important thing to know here is the heat capacity of running water. 1 BTU =1 pound of water changing 1 degF. A gallon of water weighs close to 8 1/3 pounds, so the harvestable heat is 8 1/3 BTU...
Forum: Geothermal & Heat Pumps 12-22-19, 12:14 AM
Replies: 12
Views: 655
Posted By jeff5may
Sorry, been busy working all the time. Let me...

Sorry, been busy working all the time. Let me just spout off some ideas for you and let you go from there.

With the capacity you have, it's going to take a long time to heat up much water. A cap...
Forum: Geothermal & Heat Pumps 10-07-19, 12:53 PM
Replies: 5
Views: 572
Posted By jeff5may
Not the same at all. High molecular weight, high...

Not the same at all. High molecular weight, high pressure. R410a is kind of a "high pressure extension" of R134a. Where R134a is good for Sub-Zero evaporator temperature and/or super high condensing...
Forum: Conservation 09-22-19, 01:14 PM
Replies: 94
Views: 7,782
Posted By jeff5may
Just had another communication meeting with the...

Just had another communication meeting with the product development guys at Ford. They're really going to bring it, starting next year. The team is in the " anticipation building" phase now: not...
Forum: Geothermal & Heat Pumps 09-17-19, 01:16 AM
Replies: 4
Views: 646
Posted By jeff5may
All commercial grade pumps are rated for duty,...

All commercial grade pumps are rated for duty, power, rpm, load, and temperature range. Duty is the S rating. Check out this page:

https://www.engineeringtoolbox.com/amp/iec-duty-cucles-d_739.html
Forum: Geothermal & Heat Pumps 09-14-19, 11:24 PM
Replies: 4
Views: 646
Posted By jeff5may
This question is very open ended, and brings up...

This question is very open ended, and brings up more questions about your particular rig to be answered properly. The main questions hover around the amount of heat you plan on moving versus the...
Forum: Appliances & Gadgets 09-14-19, 11:54 AM
Replies: 11
Views: 1,023
Posted By jeff5may
That 697 was most likely the final clearance...

That 697 was most likely the final clearance price to get rid of the purple and pink units. I see the new model on the floor once in a while, priced about double that.
Forum: Appliances & Gadgets 09-12-19, 05:31 AM
Replies: 11
Views: 1,023
Posted By jeff5may
I bought the unit on FB marketplace from the...

I bought the unit on FB marketplace from the original owner, who considered it broken, for under 100 bucks. It had been used daily for a family of five and never been opened. It had close to the same...
Forum: Appliances & Gadgets 09-09-19, 12:26 AM
Replies: 11
Views: 1,023
Posted By jeff5may
I had the next generation of Whirlpool duet...

I had the next generation of Whirlpool duet hybridcare dryer from the OP. They really are worth it. Drying time depends on the load and mode. As well as the normal dryer settings, the one I had had...
Forum: Geothermal & Heat Pumps 09-03-19, 09:07 PM
Replies: 24
Views: 5,236
Posted By jeff5may
What he said... A lot of the variable...

What he said...

A lot of the variable capacity mini-split systems have brushless DC motors inside the pot. Most have 3 phase stators and a permanent magnet rotor. The control systems are all...
Forum: Geothermal & Heat Pumps 08-29-19, 09:11 PM
Replies: 20
Views: 1,318
Posted By jeff5may
For straight suspended pipes in the cavity, a...

For straight suspended pipes in the cavity, a boiler is the way to go. Without the heat spreaders, the pipe is the only radiating surface. The water temperature has to be very high, so it can induce...
Forum: Geothermal & Heat Pumps 08-28-19, 11:18 AM
Replies: 20
Views: 1,318
Posted By jeff5may
There are many different kinds of hydronic...

There are many different kinds of hydronic heating loops. Generally, the more efficient and dense the radiator, the lower the entering water temperature. For example, a thick, insulated concrete slab...
Forum: Geothermal & Heat Pumps 08-27-19, 03:11 AM
Replies: 20
Views: 1,318
Posted By jeff5may
Looks like it should be a good match for your...

Looks like it should be a good match for your purpose. The only thing I would be wary of is the 15 amp current carrying capacity for the compressor. A 4 ton unit might draw more than that when it's...
Forum: Geothermal & Heat Pumps 08-26-19, 06:55 PM
Replies: 20
Views: 1,318
Posted By jeff5may
The heat exchanger doesn't really care much about...

The heat exchanger doesn't really care much about the temperature. The control is another story. Since the original purpose is to heat a massive pool, the flow meter and the thermometer sensors are...
Forum: Geothermal & Heat Pumps 08-26-19, 04:47 PM
Replies: 20
Views: 1,318
Posted By jeff5may
Ok so it's the blue heat exchanger that's...

Ok so it's the blue heat exchanger that's leaking? The unit looks like a modified minisplit outdoor unit. Highly hackable. The unit already has access valves, and from what I can tell, the...
Forum: Geothermal & Heat Pumps 08-24-19, 01:51 AM
Replies: 20
Views: 1,318
Posted By jeff5may
What kind of heat exchanger do you imagine to...

What kind of heat exchanger do you imagine to replace the broken one with? It's contained inside the unit? If the unit has an electronic control and you fiddle with the guts, it will rebel, and...
Showing results 1 to 25 of 500

 
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