Aug 10, 2013 · Units manufactured after 7/09 used this subcooling chart. Check out the 036 unit at 12 SC. Then Lennox updated the chart with this update on 5/13. Somehow a 036 unit goes …

I'm familiar with subcooling and superheating (I think), and my understanding is that superheating is taking place at the evaporator and is controlled by the TXV. And I notice that the label on the …

Aug 11, 2009 · Subcooling can vary greatly compared to ssh, especially on commercial & industrial products. Sc is based on refrigerant, metering type, ll pressure losses, elevation …

Aug 25, 2010 · Finally came across 410a in the field. Is subcooling the only/best method for charging?I know I can't follow the 30 over ambient rule as with 22. Any simple rules to follow?

Feb 18, 2008 · Low subcooling results when there is insufficient refrigerant to fill the lower part of the condenser coil. High suction superheat results when there is insufficient refrigerant to fill …

May 30, 2011 · I tried subcooling method, but for some reason it didn't work, I'll try again in a week or so or I didn't do it right. I'll read about dry/wet bulb check later, don't know what it is yet.

Jul 29, 2012 · High superheat and high subcooling often indicate a restricted metering device, since the evaporator would be starved and liquid refrigerant wouod be stacking up in the …

Oct 29, 2005 · Since the purpose of subcooling is to assure fully liquid refrigerant delivery to the TXV, you put a sight glass right before the valve. Vertical lift from the condenser to the evap …

Aug 4, 2022 · Low subcooling is the result of the low superheat. The txv is wide open causing the low superheat. The low sc is because all the refrigerant is in the coil and the txv is open so you …

Sep 10, 2014 · Subcooling can also tell you if there are non condensables in a system, if your condenser is really clean, or if you have enough air moving across the condenser. You may …