6
Tr
ou
ble
sh
oo
tin
g
Tr o u b l e s h o o t i n g l
6-27
Poor Material Dr ying
Troubleshooting
(continued)
Dew point
- The delivery air must be at a low dew point so it can efficiently collect
the moisture as it is released from the heated material and carry it to the dryer to be
removed in the desiccant. In most cases, the dryer will dry your material satisfacto-
ry if the dew point of the air is -20 to -40° F {-29 to -40° C}. If your dryer does not
have a dew point readout, you can check the dew point with a portable dew point
instrument. Conair sells a variety of portable dew point meters. Contact Conair
Parts.
Problem
Dryer dew point is not
reaching proper set point.
Possible cause
Low regeneration temperature.
Poor regeneration airflow.
High dew point, ambient air leaking into
the closed loop drying circuit.
Return air temperature to the dryer is too
high. (The return air temperature on
W1600-5000 dryers is measured at the
inlet to the desiccant wheel.)
Poor desiccant performance.
Solution
Replace or check defective heaters, fuses
etc.
Clean or replace the regeneration filter.
Ensure the regeneration blower is oper-
ating properly and rotating in the correct
direction.
See Installation section enti-
tled, Checking for proper airflow.
Remove obstructions in the air stream,
such as crimped hoses, etc.
Replace damaged hoses and seal any
leaks in the process air circuit.
If using a vacuum loader on the hopper,
ensure that the loader shroud is installed
in the hopper and that the hopper is
completely filled with material.
If partially filling your hopper, ensure
that the hopper loader is sealed against
ambient air.
Install a gasket between the loader and
the top of the hopper.
Clean the aftercooler/intercooler coils.
See Maintenance section entitled,
Cleaning the aftercooler/intercooler
coils.
See Troubleshooting section entitled,
Replacing the desiccant wheel assembly.
Replacement dew point
monitors are available
from Conair.
Contact Conair Parts
(800) 458 1960
From outside of the
United States, call:
(814) 437 6861
Summary of Contents for Carousel Plus UGD043-1216
Page 7: ...Table of Contents l v...
Page 8: ...vi l Table of Contents...
Page 48: ...3 24 l Installation Testing...
Page 54: ...4 6 l Operation Control Function Flow Charts continued Login Flow Chart...
Page 55: ...4 O p e r a t i o n Operation l 4 7 Operation Basic Controls...
Page 56: ...4 8 l Operation Control Function Flow Charts continued Operation Flow Chart 1 continued...
Page 58: ...4 10 l Operation...
Page 59: ...Operation Dew Point Package Controls 4 O p e r a t i o n Operation l 4 11...
Page 60: ...Control Function Flow Charts continued Operation Flow Chart 1 4 12 l Operation...
Page 62: ...4 14 l Operation...
Page 63: ...4 O p e r a t i o n Operation l 4 15 Operation Setup Control...
Page 64: ...4 16 l Operation Control Function Flow Charts continued continued Setup Flow Chart 1...
Page 66: ...4 18 l Operation continued Control Function Flow Charts continued Equipment Setup Flow Chart 2...
Page 164: ...6 46 l Troubleshooting...