Checking for Proper Air Flow
This procedure is needed on W 150 - 400 models if the phase detection option was
not ordered with the dryer.
CAUTION: If the air flow direction is incorrect due to improper phase con-
nection, material from the hopper can be pulled into the process heater,
causing permanent damage to this equipment.
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 illu-
minate.
2 Select the setpoint temperature by pressing the select category button
under the setpoint temperature display. Once selected, the number will
flash.
3 Set the drying temperature. Press Setpoint Adjust (+) or (-) buttons or enter a
low temperature (150ºF {66ºC}) on the numeric keypad and press enter.
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.
Select Category
Buttons
IMPORTANT: This procedure must be performed before the dryer’s air hoses are connect-
ed to the hopper or before loading material into the hopper.
Setpoint adjustment
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