Dewpoint Troubleshooting - Conair Carousel Plus D Series User Manual

Problem
Dryer not producing desired
dewpoint.
6 - 2 4 l Tr o u b l e s h o o t i n g
D e w p o i n t Tr o u b l e s h o o t i n g
Under normal operating conditions, the dryer will produce dewpoints in the range
of -40 to -20° F {-40 to -29° C}. However, you may experience situations that pro-
duce undesirable results.
Possible cause
Low regeneration air flow.
Return air temperature exceeds 125°F
{52°C}.
Regeneration temperature is below nor-
mal setting.
Leaks in process lines.
Contaminated desiccant due to off-
gassing, too long of a residence time or
drying temperature is too high for the
grade of material being processed.
Analog option board/sensor malfunction
Solution
Check regeneration filter and clean
and/or replace as necessary.
Reduce the temperature of the cooling
water or increase the flow.
Connect water to the aftercooler if not al-
ready connected.
Check for adequate water temperature.
Water temperature should be approxi-
mately 85°F {29°C}.
Check amperage of regeneration heaters.
Replace heaters if necessary.
WARNING: Any electrical
checks should be performed
by a qualified electrician.
Check all hoses, gaskets, doors, loaders
or other potential areas where leakage
may occur. Replace any defective hoses
or gaskets.
Verify proper drying temperatures and
residence times. If off-gassing is a condi-
tion of the material being processed, con-
tact Conair Parts at (800) 458 1960 for
the addition of a volatile trap.
Verify dryer dewpoint readings with a
calibrated portable dewpoint meter.
Replace analog option board or sensor.