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Search: Posts Made By: jeff5may
Forum: Geothermal & Heat Pumps 10-18-16, 04:32 PM
Replies: 218
Views: 117,303
Posted By jeff5may
lubaka, Welcome to the forums! Check out...

lubaka,
Welcome to the forums!

Check out the document in this post:

http://ecorenovator.org/forum/45385-post116.html

In that thread, Memphis used 1/4 inch tubing in a 30 foot borehole....
Forum: Geothermal & Heat Pumps 02-25-16, 12:07 PM
Replies: 218
Views: 117,303
Posted By jeff5may
Whoo! What an added wrench thrown into the works...

Whoo! What an added wrench thrown into the works with the DHW option!

OK, so with the previous design considerations, you have a lineset running into your equipment closet that is being used...
Forum: Geothermal & Heat Pumps 02-21-16, 11:19 PM
Replies: 218
Views: 117,303
Posted By jeff5may
Ok, so is there anything in the space above the...

Ok, so is there anything in the space above the kitchen cabinets? It looked like the drop ceiling in the hallway starts about the same place. Then again, that makes too much sense. Why not run stuff...
Forum: Geothermal & Heat Pumps 02-21-16, 08:26 PM
Replies: 218
Views: 117,303
Posted By jeff5may
Ok, so from this set of pics, it looks like you...

Ok, so from this set of pics, it looks like you have a chase running overhead from the air handler, over your kitchen cabinets, out to where you ran the lineset for the dx water heater. My big...
Forum: Geothermal & Heat Pumps 02-21-16, 12:24 PM
Replies: 218
Views: 117,303
Posted By jeff5may
I think I have half a clue about the nature of...

I think I have half a clue about the nature of this install. I looked through some of your other threads and found a few pics of your house. Am I correct in assuming you don't have a basement?...
Forum: Geothermal & Heat Pumps 02-20-16, 09:49 PM
Replies: 218
Views: 117,303
Posted By jeff5may
If it were mine, I would much rather run a...

If it were mine, I would much rather run a lineset to the air-source outdoor unit. While I was at it, I would run a phone line or cat 5 cable with the lineset so I could connect the air unit to some...
Forum: Geothermal & Heat Pumps 02-20-16, 01:45 AM
Replies: 218
Views: 117,303
Posted By jeff5may
AHA! found the thread. ...

AHA! found the thread.
http://ecorenovator.org/forum/geothermal-heat-pumps/3371-evaporator-sizing-bigger-better-2.html#post34159

The whole thread is pretty relevant to your DX rig in the...
Forum: Geothermal & Heat Pumps 02-18-16, 06:31 AM
Replies: 218
Views: 117,303
Posted By jeff5may
You can try running an air-sourced zone. All you...

You can try running an air-sourced zone. All you do is plumb in the air hx at the discharge line and make sure the suction side merges alittle distance past the sensing bulb for the water loop....
Forum: Geothermal & Heat Pumps 01-23-16, 08:37 PM
Replies: 218
Views: 117,303
Posted By jeff5may
No big rush here. Since you have developed the...

No big rush here. Since you have developed the greenhouse system, which is fully dx outdoors, that's the best place to reap some heating rewards and collect data. Odds are high that the performance...
Forum: Geothermal & Heat Pumps 12-23-15, 10:37 PM
Replies: 218
Views: 117,303
Posted By jeff5may
Some tx valves have a built-in check valve. When...

Some tx valves have a built-in check valve. When they see reverse pressure, the check valve opens and lets the liquid through without dropping much pressure at all. You still need one for each heat...
Forum: Geothermal & Heat Pumps 12-10-15, 09:29 AM
Replies: 218
Views: 117,303
Posted By jeff5may
Here's the thing about electronic expansion...

Here's the thing about electronic expansion valves: They don't all work the same way, and you are relying on an electric over mechanical control layer to regulate how your system acts. If you pony up...
Forum: Geothermal & Heat Pumps 12-09-15, 12:19 PM
Replies: 218
Views: 117,303
Posted By jeff5may
On the other side of the user interface, the...

On the other side of the user interface, the possibilities are wide open. You can stick with the industry-standard wiring schemes, to make troubleshooting or retrofitting easy in the future. Like I...
Forum: Geothermal & Heat Pumps 12-09-15, 09:10 AM
Replies: 218
Views: 117,303
Posted By jeff5may
Your planned control scheme will dictate how the...

Your planned control scheme will dictate how the thermostat does what it does. Most residential heat pump thermostats have direct control over next to nothing. Some will run a small blower on their...
Forum: Geothermal & Heat Pumps 12-08-15, 10:10 PM
Replies: 218
Views: 117,303
Posted By jeff5may
I would definitely set up something simple first....

I would definitely set up something simple first. As time ticks on, these bleeding-edge products will become more standardized and reliable once the manufacturers iron out the field issues. A...
Forum: Geothermal & Heat Pumps 12-08-15, 08:43 AM
Replies: 218
Views: 117,303
Posted By jeff5may
OK, so Jake was writing a response the same time...

OK, so Jake was writing a response the same time as I was last night. My bad, I should have refreshed the page. I went to bed instead.

What Randy said is what you already know. Using propane with...
Forum: Geothermal & Heat Pumps 12-07-15, 08:51 PM
Replies: 218
Views: 117,303
Posted By jeff5may
I've been off the forums for a few days, just...

I've been off the forums for a few days, just checked in and saw this. Wow, what a turnaround! Last week, Jake was ready to pull the trigger on a compressor of some sort. This week, it's...
Forum: Geothermal & Heat Pumps 12-02-15, 10:47 AM
Replies: 218
Views: 117,303
Posted By jeff5may
Read this: AE-1369 R1 Use of Variable Frequency...

Read this:
AE-1369 R1 Use of Variable Frequency Drives (VFDs) with Copeland Discus® Compressors | AE Bulletin...
Forum: Geothermal & Heat Pumps 11-30-15, 01:20 PM
Replies: 218
Views: 117,303
Posted By jeff5may
Today's deal near you: 4 ton goodman AC...

Today's deal near you:
4 ton goodman AC condenser (http://memphis.craigslist.org/for/5270978376.html)
Forum: Geothermal & Heat Pumps 11-29-15, 10:14 PM
Replies: 218
Views: 117,303
Posted By jeff5may
In Europe, they are in the process of developing...

In Europe, they are in the process of developing new lines of compressors that use brushless dc motors and inverter drives to run them. Check out these leaflets:
...
Forum: Geothermal & Heat Pumps 11-29-15, 05:26 PM
Replies: 218
Views: 117,303
Posted By jeff5may
Duh, I should have known that already. Now that...

Duh, I should have known that already. Now that you mention it, I have read posts you made about it elsewhere in the forum. Please forgive me, I'm an idiot.

Since you are considering the Emerson...
Forum: Geothermal & Heat Pumps 11-29-15, 01:39 PM
Replies: 218
Views: 117,303
Posted By jeff5may
Since you are doing a water-to-air configuration,...

Since you are doing a water-to-air configuration, it would be in your interest to get acquainted with waterfurnace and their tech support info. They have been making units just like you are planning...
Forum: Geothermal & Heat Pumps 11-29-15, 12:42 PM
Replies: 218
Views: 117,303
Posted By jeff5may
Now is the time to figure out how much heating...

Now is the time to figure out how much heating and cooling you really actually need. Who knows who or how the unit you have was matched to your house? Have you done, or had done, an energy audit or...
Forum: Geothermal & Heat Pumps 11-28-15, 11:08 PM
Replies: 218
Views: 117,303
Posted By jeff5may
OK, emerson has consolidated the lineup of its...

OK, emerson has consolidated the lineup of its latest (ZRK5) replacement scroll compressors. The 51 models it used to make (in various motor windings and whatever else custom in each model) has been...
Forum: Geothermal & Heat Pumps 11-28-15, 09:12 PM
Replies: 218
Views: 117,303
Posted By jeff5may
If you REALLY wanted to save the mucho dinero,...

If you REALLY wanted to save the mucho dinero, you could plumb the turbotec hx into your existing heat pump. If equipped with its own TXV, it could change the way the old unit performs (for the...
Forum: Geothermal & Heat Pumps 11-28-15, 07:36 PM
Replies: 218
Views: 117,303
Posted By jeff5may
Look at the specs. The r22 unit I cited is...

Look at the specs.

The r22 unit I cited is rated for 3.5 tons at a wide temperature split. At a narrow split, it does around 4.5 tons with less power draw. 3850 watts at wide split, 3100 watts at...
Showing results 1 to 25 of 49

 
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