Air Dryer
5 Troubleshooting
Installation place is poorly
ventilated. Ambient temperature
is too high.
Improve the ventilation system to lower the ambient
temperature.
The ventilation grilles are
obstructed by wall or clogged
with dust.
Install the air dryer more than 40cm away from the
wall.
Clean the ventilation grilles once a month.
Evaporation
thermometer points the
value exceeding a
green range under the
condition where no hot
wind blows out from the
ventilation port (exhaust
port) at right side face.
Temperature of the compressed
air is too high.
Improve the ventilation system around air
compressor or make ambient temperature around air
compressor low to lower the temperature of
discharge from compressor.
Reduce the temperature of the compressed air by
installing an additional after-cooler after air dryer.
Bypass valve of air dryer is not
fully closed.
Close the valve completely.
Drain is not discharged from auto
drain properly.
Check if the drain pipe has been raisen up or bent.
Check auto drain.
Check auto drain strainer.
Moisture occurs
downstream of the
compressed air
lines.
Confluence of piping with another
unit without air dryer.
Install air dryer on the line that does not have it.
Separate two lines not to converge.
IN / OUT valve on the air dryer
side is not fully opened.
Open IN/OUT valve thoroughly.
Large pressure drop
Filter that is installed separately
in compressed air line is clogged.
Replace the filter element.
(Follow the instruction manual of each individual
device.)
5 - 2
