Checking for Proper Air Flow
This procedure is needed on W-50 through 100 models if the phase detection
option was not ordered with the dryer.
CAUTION: This procedure must be performed before the dryer’s air hoses are con-
nected to the hopper. Performing this step after the air hoses are connected could
cause damage to the dryer if the air flow direction is incorrect due to improper
phase connection. Material from the hopper can be pulled into the process
heater, causing permanent damage.
1 Turn on the main power to the dryer. Make sure the dryer’s disconnect dial is
in the ON position. This powers up the control and the display lights will
illuminate.
2 Set the drying temperature. Press Setpoint Adjust (+) or (-) buttons to set the
drying temperature to a low setpoint of 150ºF {66ºC}.
Shutdown Alarms
A1 Process High Temp
A2 Process Loop Break
A3 Process Heater High Temp
A4 Regen Heater High Temp
A7 Return Air High Temp
A49 Process Protection High Temp
A53 Process Blower Overload
A55 Wheel Rotation Failure
Passive Alarms
P1 Process Temp Deviation
P3 Regen Temp Deviation
P5 Return Air Mid High Temp
P17 MDC Conveying Demand
1 Process Temp.
2 Regen. Temp.
3 Return Air Temp.
4 Auto Start
5 Load Time (MDC)
6 Activate Setback Temp.
7 Setback Temp.(Process)
8 Dewpoint
Auto Start
Dewpoint Control
Set-Back Temp.
Regen. Blower
Regen. Heater
Conveying Blower
Process Blower
Process Heater
3-8 l Installation
When configured as a central dryer, the drying temperature can
not be set since there is no process heater in the system.
Setpoint Adjust
Buttons
IMPORTANT: This step must be performed before the dryer’s air hoses are connected to
the hopper or before loading material into the hopper.
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