Purge reversal dgbair, Thanks for the good suggestion on reverse purging. We did try this but did not seem to help. I'm concerned with the...
air in loop field We've tried with a 1.5 HP water pump to get the air out of loop field. We're still getting about 1 gallon drop of column when...
EWT=25, air in lines Some new data to my issue, installer was out today with purge pump cart. It appears we have a large amount of air in loop...
Ground temp I believe ground temp is around 45F here in MN. I did do a test. With system off for 7 hrs - aux. heat on only, I then started...
EWT=25F I have a similar situation - even colder loop field. I'm in St. Paul, MN with a 8 - 100' wells. Groups of 2 with 4 manifold into...
EST=25F The Carrier manual has a table of Reynolds # for 25% Polyprop Glycol. For a 3/4" pipe it lists 2 GPM > Re=1271 3 GPM > Re=1919 So I...
EWT=25F Joe, Yes, I'm not expecting to always run at a COP=4. Certainly a 3.2-4 would be great. However, I'm more concerned with the...
Hello all, I recently had a 4 ton Carrier Geotherm put in. A recent check had my EWT=25F and LWT=19F after a cold night. Frost even on the...
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