View Single Post
Old 06-08-19, 09:47 PM   #1941
AC_Hacker
Supreme EcoRenovator
 
AC_Hacker's Avatar
 
Join Date: Mar 2009
Location: Portland, OR
Posts: 4,002
Thanks: 303
Thanked 707 Times in 529 Posts
Default

Quote:
Originally Posted by mejunkhound View Post
made a tube in tube water to R22 exchanger

36mm inside diameter PVC plastic pipe carries water

Inside the PVC pipe have 18 mm diameter coper pipe with R22 inside.

25 meters length = 60,000 BTU/hr ( 17 kW)

for your 18,000 btu, 10 meters of tube in tube water to R22 is good for the evaporator.

my use is heat pump only, water to air, the tube in tube described may not work as well as condenser.
Very good info. Scalable, too.

-AC

__________________
I'm not an HVAC technician. In fact, I'm barely even a hacker...
AC_Hacker is offline   Reply With Quote