Air conditioning system : why the equalizing line is icing?
Its a Carrier water cooled condenser type, chilled water acu system for a Dehumidifier system. Used at the urea fertilizer bulk store. System not running.Suspected TRV defective. Ordered to change new filter drier (block filter) and change new TRV (TRAE30HW90 6A ), purge the affected area. charged in gas-R22 and run system. Continue to charge in gas to LP 60 psi and HP 225 psi, load was 38.5 amps. Require 41 amps @ LP 70 psi, HP 250 psi approx. nominal ratio. At 38.5 Amps the equalizing line started to frost (icing). This shows that there is liquid flow to the return line. At this point the amps drop to 34 amps and LP 38 psi in a period of 20 min.The other system combined to the same chiller is running good with HP 240 psi, LP 68 psi @ 41 amps.
I also tried charging up more gas but the gas did not want to go in. Continued to run system as it is and there was no change.
Whats the remedy to this condition? Tks, Allan
Sounds like you have a partial blockage in the system. You say the equalizing line is frosting. How far back does this start? The start point may be where the blockage is.
Air Conditioning Chambersburg Pa Residents
Buy a new one holmes. They are like 40 at wal mart.
References :
Sounds like you have a partial blockage in the system. You say the equalizing line is frosting. How far back does this start? The start point may be where the blockage is.
References :