Go Back   EcoRenovator > Improvements > Geothermal & Heat Pumps
Advanced Search

Blog 60+ Home Energy Saving Tips Recent Posts Search Today's Posts Mark Forums Read

Thread Tools Display Modes
Old 12-19-21, 04:36 AM   #1
Lurking Renovator
Join Date: Dec 2021
Location: Buckeye,Az
Posts: 18
Thanks: 2
Thanked 8 Times in 6 Posts
Default (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 discus specs.

-Johnson controls v46 head pressure water flow regulating valve at the HX inlet

-Home-brew condensor refrigerant-water tube-in-tube HX (1/2” L copper pipe inside for water 3/4” outer jacket for the refrigerant)

-24kBtu trane mini split outdoor coil for the evaporator

-1-1/2 to 3 ton r22 TXV, filter drier and site glass.

-Fried a teco 3hp VFD trying to drive a 2 ton twin rotary BLDC compressor so I’ve defaulted to an inkbird PID / mechanical contactors for controlling this experiment) (wiring In pic is incomplete)

-800 CFM 10 speed 10” inline fan (super quiet and ductable)

A slew of various temperature/ pressure / amperage sensors with displays consolidated in the door of the control box

Any input questions or concerns are very welcome. This is more of an experiment and I’m positive there are many potential problems as it stands currently.

The random tandem window comps were just what I had on hand…

Attached Thumbnails
Click image for larger version

Name:	B564636F-7871-4791-9CEC-EEB5940648A5.jpg
Views:	276
Size:	497.3 KB
ID:	9411   Click image for larger version

Name:	EC1B0332-9EB9-41AB-B142-0EEC2C0BB156.jpg
Views:	261
Size:	501.8 KB
ID:	9412   Click image for larger version

Name:	EDBFEBA3-2F5E-41E0-A6E7-1080B1D25173.jpg
Views:	262
Size:	529.9 KB
ID:	9413   Click image for larger version

Name:	67355C5C-6657-4BA4-84B4-8B6A125EF6D1.jpg
Views:	246
Size:	492.1 KB
ID:	9414   Click image for larger version

Name:	C7268EAB-F90B-4500-8FF3-7E978D7AEE8D.jpg
Views:	259
Size:	500.3 KB
ID:	9415  

Click image for larger version

Name:	8A6AF93F-6F23-4810-A70E-6CD2F8A64F13.jpg
Views:	249
Size:	504.6 KB
ID:	9416  

Last edited by Bobinater33; 12-19-21 at 08:18 PM..
Bobinater33 is offline   Reply With Quote
The Following User Says Thank You to Bobinater33 For This Useful Post:
Fordguy64 (12-21-21)

Thread Tools
Display Modes

Posting Rules
You may not post new threads
You may not post replies
You may not post attachments
You may not edit your posts

BB code is On
Smilies are On
[IMG] code is On
HTML code is Off

Forum Jump

All times are GMT -5. The time now is 04:13 AM.

Powered by vBulletin® Version 3.8.11
Copyright ©2000 - 2024, vBulletin Solutions Inc.
Ad Management by RedTyger
Inactive Reminders By Icora Web Design