Codes de défaut couverts
44-13
The PEV is used to equalize suction and discharge pressures and lessen the starting torque required from compressor and VFD. The PEV will open 2.5 minutes after compressor shutdown if pressure differential is between 200-300psi or if pressure differential is greater than 50psi and demand is present. In both cases PEV will open until differential pressure is less than 40psi. Code 44-13 will be set if PEV is open for 10 minutes and does not reduce pressure differential below 40psi. If this occurs it is likely the valve or coil has failed. Replace PEV coil and harness first and if fault persists open refrigeration system and replace PEV valve itself. This fault will not prevent system from starting, but will likely be accompanied by another fault.
Pages de dépannage ACHPVSR454-02SM.