ALTEC AIR, LLC
P550W Series Air Dryers User’s Guide
Page 65 of 98
P011658 – Rev. S
If you are unable to create a High Compressor Last Run Time (LAST RUN)
alarm as described, see section 13.18 for troubleshooting information.
9.12 Testing Humidity Alarm and System Shutdown
CAUTION
: Be careful when removing Air hose. System is pressurized.
9.12.1
Power the air Dryer
OFF
.
9.12.2
Depressurize air Dryer (see section 8.2.1 )
9.12.3
Unscrew and remove the
Humidity Sensor from the
Humidity Block.