EcoRenovator - View Single Post - Propane (R-290) for heat pumps?

Thepprof · 07-23-12, 06:46 PM

I recently converted a Klimeair 12K unit from R410a to Propane. since there is no data available other than the standard gas charts. I just started adding propane to a empty,vacuumed system and with the best scenario I got Delta 10 at the air handler which works out to estimated 10K BTU and the next day started the unit again. Added more gas and now am getting Delta 8 or approximately 8K BTU at tge air handler. I noted that the difference through out the test that there was approximately 10 psi difference in the gas line vrs the liquid line. Since the capillery/piston tube is in the outside unit and I am a rank amateur and have found no one with serious experience and understanding I am currently at a standstill but since I now have reason to belive this unit is working as it is supposed to am considering taking it back to R410a and reinstalling it in the unit it came out of.

07-23-12, 06:46 PM	#185
Thepprof Lurking Renovator Join Date: Jun 2012 Location: Virginia Posts: 28 Thanks: 0 Thanked 4 Times in 3 Posts	I recently converted a Klimeair 12K unit from R410a to Propane. since there is no data available other than the standard gas charts. I just started adding propane to a empty,vacuumed system and with the best scenario I got Delta 10 at the air handler which works out to estimated 10K BTU and the next day started the unit again. Added more gas and now am getting Delta 8 or approximately 8K BTU at tge air handler. I noted that the difference through out the test that there was approximately 10 psi difference in the gas line vrs the liquid line. Since the capillery/piston tube is in the outside unit and I am a rank amateur and have found no one with serious experience and understanding I am currently at a standstill but since I now have reason to belive this unit is working as it is supposed to am considering taking it back to R410a and reinstalling it in the unit it came out of.