SDAP Nomad Dryer with AP1 Control
Reference Manual (PN: 882.00281.00) for
Complete Operation and Installation Instructions
(Available online at www.sterlco.com)
Quick Start Pre-Startup Checklist
1. Check the process and return hoses for tight connections.
2. Check all companion equipment, such as the drying hopper; verify the
loading system is ready for operation.
3. Verify all dryer electrical connections are tight.
4. Verify the thermocouple is properly installed at the hopper inlet.
5. Verify temperature unit/scale (°F or °C).
Quick Startup Checklist
1. Turn ON the power disconnect switch in your power drop, then turn ON the
power disconnect switch on the dryer.
2. Turn the dryer ON/OFF switch to ON to energize the display panel.
3. Check the display for the proper temperature scale (°F or °C).
4. Close the slide gate at the bottom of the drying hopper.
5. Fill the drying hopper with material.
6. Press the START button on the touch screen to start the dryer (Display will
change to SHUTDOWN). The process blower starts.
a. Make sure the blower turns in the correct direction.
b. Disconnect the hose from drying hopper to the filter.
c. Quickly turn the ON/OFF switch to OFF. You
should feel a suction at the inlet of the filter. (Secure the
hose back in place).
Setting the Process Air Temperature
1. Press and hold the SET POINT Display until a number key pad appears.
2. Enter the values you would like to set in the screen by pressing the number keys.
3. Press ENT (Enter) when you are finished.
Auto-Tuning the Dryer
1. From the “Dryer Status” screen, press “Dry Menu”.
2. Select Auto Tune to gain access to this screen. The Access Code into the Auto
Tune screen is: 1234.
Note: The auto tune feature can be enabled by pressing the PUSH TO START
button. AUTOTUNE IN PROGRESS or PROCESS NOT ACTIVE will
inform the operator of the current status of this feature.
3. At this point, the operator can return back to the DRYER MENU or MAIN MENU
by touching the appropriate button on the screen.
Setting the Redundant Safety Controller
•
The Redundant Safety Controller alarm setting is changed
by pressing the up and down keys, which inputs the alarm
value.
•
The upper display reading indicates the Process Value,
while the lower display indicates the High Point Setting
alarm value.
UP
&
DOWN
Keys
Sterling
Part No: 682.92636.03
Bulletin No: DH1-315.02
2900 S. 160th Street • New Berlin, WI 53151 USA
Tel. 262.641.8610 • Fax 262.641.8653
SDAP Nomad Dryer with AP1 Control
Reference Manual (PN: 882.00281.00) for
Complete Operation and Installation Instructions
(Available online at www.sterlco.com)
Convey to Drying Hopper With
Proportioning Valve & Two
Machines, Configuration “DP”
Convey to Drying Hopper With
Proportioning Valve & Two
Machines, Configuration “CP”
(Air Flow Schematic)
Drying Hopper
Loader
DH
Valve
Blower
Filter
ON
Desiccant
Tanks
T’Couple
Location
M1
M1
Machine 2
Loader
Machine 1
Loader
HB
MB
Slide
Gate
Process
Heater
Machine Hopper
Blower Blower
Air In
Maintenance
Filters: Recommendations for Cleaning and Replacing
Air Out
1. Turn off and/or lock out electrical power to the dryer.
2. Loosen the clamp, and remove the dust can.
3. Remove the thumb nut, on the center retaining rod, to remove the
filter cartridge.
Clamp
Thumb Nut
4. Pull the filter cartridge out.
Vacuuming
•
Try vacuum-cleaning a soiled filter first. Vacuuming removes most
large particles and surface contaminants, and may suffice for the first
time you clean a filter.
Filter
Cartridge
Filter Housing
Dust Can
•
Use a commercial-duty (recommended) or household vacuum
cleaner. Vacuum the filter from the air intake (dirty) side only.
Cleaning with Compressed Air
1. Blow clean, dry, compressed air up and down the pleats, blowing out
the filter from the inside out.
(Return Air Filter)
2. Remove loose dirt from the filter with compressed air or vacuum from
the outside.
3. Inspect the filter element. Briefly hold a light bulb behind the element
and look for any fatigued paper or residual dirt. Inspect for holes and
tears by looking though the filter toward a bright light. Check for
damaged gaskets or dented metal parts.
Note: Do not re-use a damaged filter!
Cooling Coils: Cleaning and Replacement Procedures
1" Wide x 1/8" Thick High
1. Shut down the dryer, tag out and lock out the controls if
necessary.
2. Shut the water off to the cooling coil.
3. Remove the four 10-32 bolts.
Temperature Gasket
Use compressed air or a steam
cleaner to blow the dust off or
clean any oily residue on the coil.
Undo (4) 10-32 Button
Head Screws using 1/8
Allen Wrench
4. Gently slide the cooling coil out.
5. Visually inspect the coil for leaks, dirt, and any sign of
contaminants.
6. Blow the dust out, or if the coil is covered with plasticizer,
steam clean it.
7. Place the coil back in its housing. Make sure the gasket is
undamaged; replace if necessary.
(Cooling Coil)
8. Inset the four 10-32 bolts back in place.
9. Turn the water to the cooling coil back on.
Water flow requirement:
If used as an After-Cooler: 3 to 4 GPM @80°F.
If used as a Plasticizer Trap: 3 to 4 GPM @ 40°F to
45°F.
Sterling
Part No: 682.92636.03
Bulletin No: DH1-315.02
2900 S. 160th Street • New Berlin, WI 53151 USA
Tel. 262.641.8610 • Fax 262.641.8653
SDAP Nomad Dryer with AP1 Control
Reference Manual (PN: 882.00281.00) for
Complete Operation and Installation Instructions
(Available online at www.sterlco.com)
Spare Parts List
Desiccant
Replacement Beads
Regeneration
Thermocouple
Process
Thermocouple
Model
Filter
Gasket
Standard
Temperature
25/50/100 – Part # W00052474
High Temperature –
25 ONLY – 96” Long
– Part # A0568474
50/100 ONLY – 96”
Long
Standard and
High
Temperature
– Part #
15’ Long (Braided Design)
– Part # A0568466
72” Long (Braided Design)
– Part # A0568473
SDAP
13 X Beads – Part #
W00018051
Part # 161.00194.00
– Part # A0543758
A0566839
Note: Refer to the main manual and wiring diagram for a complete Spare Parts List
Troubleshooting - Quick Guide
Alarm Message
Cause
Corrective Action
Dryer Status
Make sure the process air filter is clean. Clean or replace if
necessary.
Dryer Normal:
The dew point
reading has
exceeded the
dew point alarm any damaged seals.
set point.
Make sure all the hose connections and all the components of
the dryer have proper seals on them (i.e. desiccant tanks, heater
box, filters, after-cooler). Tighten the connections and replace
- Process blower ON.
- Process heaters ON.
- Regen heaters ON.
- Alarm Message ON.
- Alarm horn is OFF.
High Dew Point
Make sure the regeneration timing cycle matches the specs. If
not, contact the Service Department.
Desiccant may be contaminated and blocking the air flow. Check
desiccant, replace if necessary.
Make sure the process filter is clean. Clean or replace if
necessary.
Dryer Shuts Down:
Double check the alarm set point is at 35° F.
- Process blower OFF.
- Process heaters OFF.
- Regen heaters OFF.
- Alarm light is ON.
The process
temperature
has exceeded
the alarm set
point.
Check the positioning of the thermocouple inside the air inlet of
the drying hopper. The tip of the thermocouple should be
centered in the tube, and not touching any metal part of the tube.
The drying temperature set point is lower than dryer capabilities.
Check the dryer specs.
Process High
Temp
- Alarm horn is ON.
Make sure all the hose connections are tight.
Make sure the regeneration timing cycle matches the specs. If
not, contact Service department.
The limit switch
on the valve
may not have
been wired
The switch is indicating the incorrect desiccant tank is in
regeneration. Check the wiring of the switch against the wiring
diagram. Make sure all the wire connections are tight.
Dryer Shuts Down:
Valve Positioning
Fault
- Process blower OFF.
- Process heaters OFF.
- Regen heaters OFF.
- Alarm light is ON.
correctly.
The valve has
made enough
rotations and
the correct
position of the
valve was not
detected.
Limit switch may be out of position. Re-adjust the switch so it
trips when it is at the high position, and avoids touching the cam
when it is at the low position.
- Alarm horn is ON.
Valve Motor
Override
Limit switch may be faulty. Replace the switch and make sure
the wires are connected correctly.
Sterling
Part No: 682.92636.03
Bulletin No: DH1-315.02
2900 S. 160th Street • New Berlin, WI 53151 USA
Tel. 262.641.8610 • Fax 262.641.8653
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