PSB INDUSTRIES INC. • General Air Division • 1202 West 12th Street, Erie, PA. 16501 | G5C Dryers | ||||
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6.4 | Digital Display |
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| Message (NOT flashing) | Description |
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| Numeric Value | Dewpoint Temperature |
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| “ICE” | Energy Saving Standby Mode |
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6.5 | Error Codes |
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The controller recognizes specific types of operational errors. When an error occurs the display shows a flashing alarm message alternating with the current dewpoint value, as described below:
Message (flashing) | Cause |
HtA | High Dewpoint Temperature |
PF1 | Temperature Sensor failure |
All the alarms except for PF1 are automatically reset when the cause is removed. PF1 must be cleared by switching the unit off and then
7.0 TROUBLESHOOTING
SYMPTOM
Temperature shown in display is higher than preset value
Excessive air pressure drop across dryer
Water present in air downstream of dryer
POSSIBLE ORIGIN | SOLUTION |
High compressed air inlet temperature | Reduce air temperature to within design limits |
High compressed air flow | Reduce air flow to within design limits |
High ambient air temperature | Increase ventilation rate of installation area |
Fouled refrigerant condenser | Clean condenser |
Low refrigerant charge | Locate & repair leak & |
Faulty refrigerant compressor | Repair or replace |
Faulty refrigerant solenoid valve | Repair or replace |
Faulty fan thermostat | Repair or replace |
Faulty control relay | Repair or replace |
Refrigerant high pressure switch open | Eliminate cause & reset switch |
Inlet/outlet piping reversed | Connect properly |
Thermostat sensor out of well | |
Faulty thermostat | Repair or replace |
Ambient temperature below freezing | Install dryer in heated space |
Obstruction in air circuit | Locate & remove blockage |
Air | Close valve |
Condensate drain strainer fouled | Clean strainer |
Faulty condensate drain | Repair or replace |
High dew point temperature | See Symptom #1 above |
8/16 | Cod. 710.062.01.00 – Rev.08 – 02.05.02 |
