EcoRenovator - View Single Post - small compressor with oversized evap/cond

mejunkhound · 11-10-13, 07:31 AM

Yep, comp had failed (3 screws holding lower bearing in place came loose, copeland scroll, covered in detail in another thread)

Since the condensor is also oversized (HP mode), I also overcharged for best subcool readings.

Running great, do not even notice that duct temps are only 95 F now (vs. 110F before). Also added a relay to drop the blower to lower speed when in the 2T mode.

Left the evap fan at full airflow, as even with 41F air temp, the evap does not get pulled below 32F which eliminates the unit ever going into defrost mode.

note: at 41F, my outdoor tstat automatically switches over to my $500 5T GSHP, covered in one of the sub-threads in the legendary homemade heat pump thread.

11-10-13, 07:31 AM	#4
mejunkhound Apprentice EcoRenovator Join Date: Apr 2011 Location: PNW Posts: 197 Thanks: 0 Thanked 47 Times in 31 Posts	Yep, comp had failed (3 screws holding lower bearing in place came loose, copeland scroll, covered in detail in another thread) Since the condensor is also oversized (HP mode), I also overcharged for best subcool readings. Running great, do not even notice that duct temps are only 95 F now (vs. 110F before). Also added a relay to drop the blower to lower speed when in the 2T mode. Left the evap fan at full airflow, as even with 41F air temp, the evap does not get pulled below 32F which eliminates the unit ever going into defrost mode. note: at 41F, my outdoor tstat automatically switches over to my $500 5T GSHP, covered in one of the sub-threads in the legendary homemade heat pump thread.