Heat Pump Plumbing

Bullpunch

Member
Sep 13, 2018
13
Orlando, FL
Hi, I am adding a heat pump to my pool. I think I want to add a bypass. Attached a diagram of my current and proposed plumbing.
Is this the proper way, or should I add a second valve?? Any other suggestion on my plan??
Thanks a lot!!!

pool plmb hp.png
 

ajw22

Gold Supporter
TFP Guide
Jul 21, 2013
10,829
Northern NJ
You should add a check valve on the output of the HP before the T. On bypass the 3-way valve will stop water going into the HP input and the CV will stop water going into the HP output.

As you have it now you can bypass the HP but cannot remove the HP for service without the water back flowing into the HP output line.