Working on a carrier 48TFE012-A-111 R22 system. The system is not cooling, room temp 78F, return Air temp 72F, Supply 60F. Disconnected outside air sensor, outside damper closed, Outside ambient 64F. Pressures on the gauge reads 225psi on the discharge and 60 psi on the suction. But the suction line is not cold to touch. (I didn't get the super heat).
The second stage compressor has a higher suction pressure and a lower (proper, estimated) temp cold to touch.
The unit is for a gymnastics place, and so the evaporator has been covered with the chalk they use on there hands, The evaporator was just cleaned and an on going problem (even so a plugged evap should cause the unit to freeze over)
Its a fixed orifice unit. What are the possibilities of a fixed orifice wearing out (becoming bigger) or non combustibles in the system?
The second stage compressor has a higher suction pressure and a lower (proper, estimated) temp cold to touch.
The unit is for a gymnastics place, and so the evaporator has been covered with the chalk they use on there hands, The evaporator was just cleaned and an on going problem (even so a plugged evap should cause the unit to freeze over)
Its a fixed orifice unit. What are the possibilities of a fixed orifice wearing out (becoming bigger) or non combustibles in the system?
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