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13-06-2007, 04:33 PM #1
walk in cooler EVAPORATOR coil icing up
walk in cooler is kept at aound 38 degrees F. ....
clean evap. coil every year, and every year after running for 6 or 8 months i go back and check it and the ball of ice is slowly getting bigger and bigger.
its been doing this for few years now.
its running on mp-39 or (r-401a) refrigerant.
checked psi on suction line and its running at about 15psi. witch i belive is to cold, way below freezing.
so evap. coil is clean, it must be low on
mp-39 refrigerant ?????????????? any guesses?
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