Nomad II 15-60 CFM Portable Drying & Conveying Systems Part Number: 882.00200.00 Bulletin Number: DH1-645-3 Effective: 09/12/2007 Write Down Your Serial Numbers Here For Future Reference: _________________________ _________________________ _________________________ _________________________ _________________________ _________________________ We are committed to a continuing program of product improvement.
Shipping Information Unpacking and Inspection You should inspect your portable drying/conveying system for possible shipping damage. Thoroughly check the equipment for any damage that might have occurred in transit, such as broken or loose wiring and components, loose hardware and mounting screws, etc. In the Event of Shipping Damage According to the contract terms and conditions of the Carrier, the responsibility of the Shipper ends at the time and place of shipment.
Table of Contents CHAPTER 1: SAFETY ................................................................ 6 1-1 1-2 1-3 1-4 How to Use This Manual ............................................................................................. 6 Safety Symbols Used in this Manual .....................................................................6 Safety Tag Information ................................................................................................ 7 Dryer Safety Tags ...........................
-2 4-3 Start Button .........................................................................................................26 Dryer Menu Screen .............................................................................................26 DRYER STATUS.................................................................................................27 DRYER SETUP ...................................................................................................27 Over-Drying Protection ...................
CHAPTER 7: APPENDIX .......................................................... 68 7-1 Technical Specifications............................................................................................ 68 Annex B Information The following design information is provided for your reference: ............................................................................................................68 Aftercooler Design Specifications........................................................................
Chapter 1: Safety 1-1 How to Use This Manual Use this manual as a guide and reference for installing, operating, and maintaining your portable drying/conveying system. The purpose is to assist you in applying efficient, proven techniques that enhance equipment productivity. This manual covers only light corrective maintenance. No other maintenance should be undertaken without first contacting a service engineer.
1-2 Safety Tag Information Dryer Safety Tags Hot! Read Operation and Installation Manual High Voltage Earth Ground Inside Enclosure PE Lifting Point 1-3 Protected Earth Ground Warnings and Precautions Our equipment is designed to provide safe and reliable operation when installed and operated within design specifications, following national and local safety codes. This may include, but is not limited to OSHA, NEC, CSA, SPI, and any other local, national and international regulations.
; When welding or brazing in or around this equipment, make sure VENTILATION is ADEQUATE. PROTECT adjacent materials from flame or sparks by shielding with sheet metal. An approved FIRE EXTINGUISHER should be close at hand and ready for use if needed. ; Do not restore power until you remove all tools, test equipment, etc., and the equipment and related components are fully reassembled. ; Only PROPERLY TRAINED personnel familiar with the information in this manual should work on this equipment.
Please read and use this manual as a guide to equipment safety. This manual contains safety warnings throughout, specific to each function and point of operation. Operator Responsibility The operator’s responsibility does not end with efficient production. The operator usually has the most daily contact with the equipment and intimately knows its capabilities and limitations.
• NEVER stand or sit where you could slip or stumble into the equipment while working on it. • DO NOT wear loose clothing or jewelry, which can be caught while working on the equipment. In addition, cover or tie back long hair. • Clean the equipment and surrounding area DAILY, and inspect the machine for loose, missing or broken parts. • Shut off power to the equipment when it is not in use. Turn the switch to the OFF position, or unplug it from the power source.
Chapter 2: Functional Description 2-1 Models Covered in This Manual This manual provides operation, installation, and maintenance instructions for 15, 30 or 60 cfm dehumidifying dryers. The carts also include insulated drying hoppers with various levels of conveying options. Model numbers are listed on the serial tag. Make sure you know the model and serial number of your equipment before contacting the manufacturer for parts or service.
During regeneration, the dryer system heats the very low dew point air and forces it through the desiccant bed. The moisture driven off the bed bleeds to the atmosphere. Closed Loop Conveying A high-efficiency centrifugal blower and specially designed take-off compartment provide closed loop dry air conveying of material from the drying hopper to a sight glass loader located at the press.
Figure 2: Convey to Drying Hopper Only; Configuration “B” Conveying Return Air Line Hopper loader Material Conveying Line Drying Hopper Dehumidifying Dryer OFF ON Material Pick Up Tube Conveying Filter Material Inventory Drying Hopper Conveying Blower Figure 3: Convey to Drying Hopper and One Machine; Configuration “C” Conveying Return Air Line Hopper loader Drying Hopper Material Conveying Line Dry Material Conveying Line OFF ON Dehumidifying Dryer Machine Loader Material Pick Up Tube Con
Figure 4: Convey to Drying Hopper and Two Machines; Configuration “D” Hopper loader Dry Material Conveying Line Conveying Return Air Line Drying Hopper Material Conveying Line Dehumidifying Dryer OFF ON Machine Loaders Material Pick Up Tube Conveying Filter Material Inventory Proportioning Valve Conveying Closed Loop Return Air Conveying Line Filter Drying Hopper Conveying Blower Machine Conveying Blower Figure 5: Convey to Drying Hopper, with Proportioning, and Convey to One Machine; Configuration
Figure 6: Convey to Drying Hopper, with Proportioning; Configuration “BP” Conveying Return Air Line Hopper loader Drying Hopper Material Conveying Line Proportioning Valve Dehumidifying Dryer OFF ON Material Pick Up Tubes Conveying Filter Material Inventory Drying Hopper Conveying Blower Figure 7: Convey to Drying Hopper, with Proportioning, and Convey to Two Machines; Configuration “DP” Dry Material Conveying Line Conveying Return Air Line Hopper loader Drying Hopper Material Conveying Line Prop
2-3 Standard Features Mechanical Features • Rugged compact cart with handles and sturdy 4” (10 cm) casters. • Dual desiccant beds • Electrically-motorized air valve • 13X Molecular Sieve • Single regenerative process blower • Drying temperature range of 180ºF to 250ºF (82ºC to 121ºC) • 2.5” hose connections Electrical Features • Process thermocouple to be connected to drying hopper air inlet.
2-4 Options Options marked with “*” indicate options that can be factory installed or retrofitted in the field. • * Process temperature up to 400ºF (204º C) including aftercooler inside dryer and silicone insulated delivery hose. Note: For below 180°F (82ºC), cooler needs to cool the air coming out of the desiccant tank prior to entering the process heater box. • * If the dryer is a central dry air generator, it will not have a process heater box.
Every effort has been made to incorporate these standards into the design of the drying system; however, it is the responsibility of the personnel operating and maintaining the equipment to familiarize themselves with the safety procedures and the proper use of any safety devices. Fail Safe Operation If a safety device or circuit should fail, the design must be such that the failure causes a “Safe” condition. As an example, a safety switch must be a normally open switch.
Chapter 3: Installation 3-1 Uncrating the Equipment Portable Drying/Conveying Systems are shipped mounted on a skid, enclosed in a plastic wrapper, and contained in a cardboard box. 1. Pry the crating away from the skid. Note: Remove the nails holding the box to the skid and lift the box off carefully; avoiding staples in the 1’ x 4’ wood supports. Cut the steel banding. 2. Use a pry bar to remove the blocks securing the unit to the skid. 3. Lift unit from sides.
3-3 Electrical Connections When making electrical connections to your unit, ensure that you take into consideration and make arrangements for the following: • A qualified electrician should make all electrical connections. • Fulfill all national, state, and local safety and electrical code requirements. • The serial tag lists voltage, phase, and amp draw information: • Line voltage must be within plus or minus ten percent (±10%) of the voltage listed on the serial tag, or damage may occur.
• Keep the material level at the mid point of the air trap This can be achieved by utilizing a hopper loader or vacuum conveying system to supply material to the drying system. Installing the Optional Aftercooler Water-cooled 15/30/60 cfm models use a water-to-air heat exchanger as an aftercooler. Cooling water is required for this design (3 gpm at 85°F or lower). Return air from the hopper passes through the air filter to trap fines and dust before entering the heat exchanger.
10. Turn on the machine convey by pushing the push to START button, and set the convey timer for the proper conveying time. Activate the appropriate conveying hoppers and pumps by touching the hopper and pump icons on the convey status screen. See Pages 34-40 for instructions on how to access the convey screen and set the convey time. Note: To allow proper residence time during continuous processing, maintain the material level in the hopper at the midpoint of the air trap assembly.
Chapter 4: Operation 4-1 Controller Description and Operation Identifying Control Panel Components for the AP-1 Controller Disconnect Switch The Disconnect Switch is located in the front upper right hand corner of the control enclosure. It allows the user to disconnect power to the dryer for emergency shutdown, service or long periods of inactivity. Control Power Switch The Control Power Switch is located on the front of the control enclosure below the touch screen.
Process Air Temperature and Conveying Process Controller These units are equipped with the “AP-1” control package which has a PLC with a touch screen interface to control the operation of the dryer and the conveying system. This section of the manual will address those parameters that allow the user to optimize the drying/conveying system for specific applications.
Main Menu Screen The MAIN MENU provides information on the following drying/conveying system parameters: • DRYER MENU (some submenus are password protected, see pg. 42) • ALARM HISTORY • HELP MENU • CONVEY STATUS • SYSTEM MENU • NO USERS LOGGED ON This section of the manual will focus on the dryer features portion of the controller at this time. Press the DRYER MENU button to return to the next section of dryer functions.
5. Auto start Timer Enabled 10. Left Bed Cool 6. Autotune in Progress 11. Left Bed Ready 7. Over-dry Protect Active 12. Right Bed Heat 8. Dryer Offline 13. Right Bed Cool 9. Left Bed Heat 14. Right Bed Ready Start Button The START BUTTON allows the user to stop and start the dryer manually. When the start button is pressed, the dryer begins to operate. The text in the button will change from START to SHUTDOWN.
• DRYER SETUP (some submenus are password protected, see pg. 40) • OVERDRY PROTECT (requires supervisory password see pg. 40) • ALARMS • AUTO TUNE (requires supervisory password see pg. 40) • DEW PT SETUP (Dew Point Setup) • AUTO START (requires supervisory password see pg. 40) • MAIN MENU DRYER STATUS Pressing the DRYER STATUS button will take the operator back to the original status screen shown on page 25. Pressing MENU will return you back to the menu screen.
NOTE: At this display, before you change any of the settings, you need to test the thermocouple readings in Ice water (32°F at sea level, and boiling water 212°F at sea level). Then you may change these settings accordingly to make sure the controller is displaying the correct temperature.
The TEMP is the set point for the return air temperature of the drying hopper. When the return air temperature exceeds this value, after a certain delay time, the process temperature will be reduced to its secondary value (SETPOINT) to eliminate over drying of the plastic material. The DELAY is the time which will take for the dryer to switch the drying temperature set point from primary drying temperature to secondary drying temperature or back to the primary drying temperature set point.
Because of the size of the screen, only three (3) comments/alarms can be viewed at a time. To view alarms not visible on the screen, press the DOWN button. To return to a particular alarm, press the UP button to scroll upward in the alarm history. Pressing CNV (Convey) in this screen will take the operator to the CONVEY STATUS of the system. At this point the operator can return back to the DRYER MENU or MAIN MENU by touching the appropriate button on the screen.
Enter the values you would like to set in the screen by pressing the number keys. Press ENT (Enter) when you are finished to set the new values or CLR (Clear) to erase the current values and reenter new ones. To set the values in the next field, press ENT (Enter) to close the screen shown above. Then select the next number field to enter new values. Once this feature has been set, the operator can return back to the DRYER MENU or MAIN MENU by touching the appropriate button on the screen.
ENT (Enter) to close the screen shown above. Then select the next number field to enter new values. Main Menu This screen allows you to jump to the different areas of the controller to set, monitor, and operate different features of the Drying/Conveying System. Having focused on the Dryer portion of the controller, the manual will now elaborate on the conveying features of the controller. NO USER LOGGED ON indicates that the password to access certain features of the dryer is not entered.
Convey Options This screen provides access to detailed descriptions and information on the following issues: • NO CNVY (No conveying) • LOW LEVEL • RPV • SPCL CNVY (Special conveying) Press the individual buttons to learn more about these features. When the operator has been informed of these features by the controller, they can return back to the MAIN MENU or HELP MENU by touching the appropriate button on the screen. Pump Icons This screen allows the operator to view the status of each pump.
Momentarily pressing the M1, M2, DH, MB, or HB icons on the screen will darken or turn them black. This indicates they are active in the conveying system. To access the Operator Screens for the hoppers, press and hold the M1, M2 or DH icons on the screen. Machine 1 Operator This screen allows the user to set the Conveying Time (1-99 seconds) and Dump Delay (10-99 seconds) time in seconds.
Pressing the SPECIAL CONVEY DISABLED button will activate this dryer feature. When this option is enabled, the station’s vacuum valve remains open for the convey time, even if the station is not demanding material and is indicating that it is full. Pressing SPECIAL CONVEY ENABLED will deactivate this feature. When disabled, the station’s vacuum valve opens when there is demand from the station, and it remains open until the convey time has elapsed or material trips the volume-fill proximity switch.
Machine 2 Operator This screen allows the user to set the Conveying Time (1-99 seconds) and Dump Delay (10-99 seconds) time in seconds. It will also provide the amount of time it took to convey the last load of material from the drying hopper to the machine. Pressing the SETUP button will take the user to the MACHINE 2 SETUP screen. If the machine has already been setup, the user can press the CONVEY STATUS button to return to the CONVEY STATUS screen.
Pressing the BACK button will take the user to the MACHINE 2 OPERATOR screen. If the conveying options have already been configured, the user can press the CONVEY STATUS button to return to the CONVEY STATUS screen. Setting Values By pressing and holding the numbers in the NO CONVEY ALARM button, the following screen will be displayed: Enter the values you would like to set in the screen by pressing the number keys.
values and reenter new ones. To set the values in the next field, press ENT (Enter) to close the screen shown above. Then select the next number field to enter new values. Drying Hopper Setup This screen allows the user to set the number of times that the machine will try to convey material (before setting off the alarm) and the number of times that the RPV will cycle. In addition, the user can turn on and off the Special Convey, Low Level Alarm, and the No Convey Alarm and the RPV features.
Enter the values you would like to set in the screen by pressing the number keys. Press ENT (Enter) when you are finished to set the new values or CLR (Clear) to erase the current values and reenter new ones. To set the values in the next field, press ENT (Enter) to close the screen shown above. Then select the next number field to enter new values. Starting the Conveying Process To start the conveying process, touch the button labeled PUSH TO START in the Conveying Status screen.
SYSTEM SETUP This screen allows the operator to set alarm and password features. ALARM OFF DUR is the amount of time (0-99 minutes) that the alarm and horn will stay off after the alarm silence button is pushed. (When this function is set to 0, this feature will never turn off. When it is set to 99, it will stay off until another alarm occurs.) OPER PW is the four (4) digit number that allows access to the station and pump status screen and the station operator screen.
Set Clock This menu allows the operator to set the AUTOSTART CLOCK and the ALARM CLOCK. Press the SET AUTOSTART CLOCK or the SET ALARM CLOCK buttons to set the times and dates on these features. Set Auto start Clock This screen allows the user to set the 7-day timer which can be programmed for daily or weekly (over midnight) on/off operation. An internal battery backup holds the settings in memory when the dryer is de-energized.
Set Alarm Clock In this screen the user can set the variables which are used to time and date stamp alarms. This feature works in conjunction with the ALARM screen (See page 31) to notify the user of issues which the Dryer had encountered during its operation. Setting Values Pressing the individual numbers in the second row of the screen shown above, the operator can select the field (Month, Day, Year, Hours and Minutes) he wishes to change.
Input Status This screen allows the operator to view the status of the variables contributing to the input of material into the drying system. It also is useful in troubleshooting system issues (i.e. a dirty filter or low material level in a hopper). At this point the operator may choose the SYSTEM MENU button to go back to the system menu, or MAIN MENU to return to main menu, or press OUTPUTS to access the output screen.
At this point the operator may choose to return to the SYSTEM MENU or MAIN MENU by pressing the appropriate buttons. Service Menu This service menu screen is PASSWORD PROTECTED and meant for manufacturer personnel use only. Press the RETURN key to go back to the SYSTEM MENU. Touching the MAIN MENU button in the SYSTEM MENU screen, will return the operator back to the overall menu screen.
Because of the size of the screen, only three (3) comments/alarms can be viewed at a time. To view alarms not visible on the screen, press the DOWN button. To return to a particular alarm, press the UP button to scroll upward in the alarm history. Pressing CNV (Convey) in this screen will take the operator to the CONVEY STATUS of the system. At this point the operator can return back to the DRYER MENU or MAIN MENU by touching the appropriate button on the screen.
lower display indicates the High Point Setting alarm value. The factory setting for the High Point Alarm Value (L1-hi) is 150°F (-23°C). Restoring the WATLOW Redundant Safety Controller to Factory Setup If the preset parameters on the controller have been tampered with and it no longer functions properly, call the Service Department. Note: This controller is not meant to be modified. WATLOW Operating Parameters The WATLOW controller has only one mode selection; ALARM.
Figure 13: Setting List for Redundant Safety Controller (WATLOW), Part No. A0568961 Mode SEn Lin C-F S.dEC IS.En Sc.Lo Parameter Setting range Default Sensor Type Thermocouple Linearization Temperature Units Temp. Decimal Places INFOSENSE™ Process Scale Low 0-3 0-10 Fahrenheit / Celsius 0 – 0.0 Yes / No 4.00 to 20.00 mA 1.00 to 10.00V 4.00 to 20.00 mA 1.00 to 10.00V -999 to 999 Off, DiSP, Cont, both Limit (2) Both, High, Low 0.0 to 999.
6. Once the control power is on and no fault conditions exist, turning the Off-On switch to the ON position and pressing the START button on the touch screen will start the dryer as follows: a. The process heater is turned on and controlled by the PLC. b. The process/regen blower is started. c. The regen heater is turned on and the regeneration timing sequence is initiated. The regen heater is controlled by the PLC. 7.
4-3 Shutting Down the Dryer 1. Turn off the conveying system supplying the drying hopper and/or machine. Press the SHUTDOWN button for the dryer to complete its cycle. 2. When processing is complete, close the hopper slide gate and shut down any in-line companion equipment, such as the aftercooler. 3. If the dryer is shut down using the SHUTDOWN button on the dryer status screen, the process heater will shut off and the bed regeneration process will be completed.
Chapter 5: Maintenance 5-1 Preventative Maintenance Schedule The checklist below contains a list of items which should be inspected and/or replaced to keep your Portable Drying/Conveying System operating at peak efficiency. Perform each inspection at the regular intervals listed below.
5-2 Preventative Maintenance This section describes maintenance procedures which will increase the longevity and efficiency of your Portable Drying/Conveying System. Perform them at the regular intervals listed on the checklist on the previous page. Servicing Process Air Filters Caution! Operating the dryer without the process air filter installed voids your warranty! Filter cleaning is an important part of your dryer maintenance program.
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. Use a commercialduty (recommended) or household vacuum cleaner. Vacuum the filter from the air intake (dirty) side only. Cleaning with Compressed Air Blow clean, dry compressed air up and down the pleats, blowing out the filter from the inside out. Remove loose dirt from the filter with compressed air or vacuum from the outside.
5-3 Corrective Maintenance This section provides you with the information necessary to correct or repair any issues which might appear during the normal operation of your dehumidifying dryer. Although we have listed how to perform these procedures, it is recommended that you call the Service Department to have any in-depth maintenance performed. Symptoms of Worn Desiccant The moisture absorption capacity of the desiccant used in your dehumidifying dryer degrades after an indefinite period of time.
Figure 15: Desiccant Bed Location and Disassembly Undo (4) 10-32 Button Head Screws using 1/8 Allen Wrench Desiccant Cap 1" Wide x 1/8" Thick Silicon Strip and Stick Gasket 13X Molecular Sieve 8x12 Beads Regeneration Heater Regeneration Thermocouple 16 Mesh 0.028 Diameter Wire Stainless Steel Screen (2) 4-40 screws Hi Temperature Snap Switch 1" Wide x 1/8" Thick High Temperature Gasket Caution! You should properly dispose of any discarded desiccant.
Replacing the regeneration heaters Procedures (see figure 15). 1. Sketch the heater wiring configuration so you can properly re-wire the heater. 2. Remove the ceramic nuts and wires to the heater plate assembly being removed or replaced. 3. Remove the six (6) 10-32 button head screws securing the process heater plate using a 1/8” Allen wrench and slide out the assembly. 4. Remove the heater(s) from the mounting plate by removing the large brass nuts and washers. 5.
Procedures 7. Sketch the heater wiring configuration so you can properly re-wire the heater. 8. Remove the ceramic nuts and wires to the heater plate assembly being removed or replaced. 9. Remove the six (6) 10-32 button head screws securing the process heater plate using a 1/8” Allen wrench and slide out the assembly. 10. Remove the heater(s) from the mounting plate by removing the large brass nuts and washers. 11. Re-install the heater(s) and heater plate assemblies in reverse order.
Replacement Procedures 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. 4. Gently slide the cooling coil out. 5. Visually inspect the coil for leaks, dirt, and ant sign of volatiles. 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 OK, replace if necessary. 8. Inset the four 10-32 bolts back in place. 9.
Chapter 6: Troubleshooting 6-1 Introduction The utmost in safety precautions should be observed at all times when working on or around the machine and the electrical components. All normal trouble-shooting must be accomplished with the power off, line fuses removed, and with the machine tagged as out of service. The use of good quality test equipment cannot be over-emphasized when troubleshooting is indicated.
Alarm Message PROCESS SENSOR FAIL Cause The process temperature thermocouple is open. REGEN SENSOR FAIL The Regeneration temperature thermocouple is open. PROCESS HIGH TEMP The process temperature has exceeded the alarm set point. Corrective Action Dryer Status The process temperature thermocouple is not connected to the temperature controller. Make sure the connections are correct and tight. - Dryer Shuts Down: - Process blower OFF. - Process heaters OFF. - Regen heaters OFF.
Alarm Message REGEN HIGH TEMP Cause Corrective Action Dryer Status The regeneration temperature has exceeded the alarm set point. Make sure the process filter is clean. Clean or replace if necessary. Double check the alarm set point. (35°F) Desiccant may be contaminated and blocking the air flow. Check desiccant, replace if necessary. - Dryer Shuts Down : - Process blower OFF. - Process heaters OFF. - Regen heaters OFF. - Alarm Message ON. - Alarm horn is ON.
Alarm Message REGEN LOW TEMP Cause Corrective Action Dryer Status The regeneration temperature did not get within the alarm set point. Make sure all the hose connections inside the dryer are tight. Check the regeneration heater fuses. Replace if necessary. - Dryer Normal : - Process blower ON. - Process heaters ON. - Regen heaters ON. - Alarm Message ON. - Alarm horn is OFF.
Alarm Message Cause Corrective Action Dryer Status PROCESS BLOWER FAIL The process blower pressure switch did not detect enough pressure. Process blower overload has tripped. Process blower motor has failed. Make sure the process air filter is clean. Clean or replace if necessary. Check the pressure switch hose connection. Replace hoses or the pressure switch. - Dryer Shuts Down : - Process blower OFF. - Process heaters OFF. - Regen heaters OFF. - Alarm Message ON. - Alarm horn is ON.
Alarm Message Cause DIRTY FILTER The filter pressure differential switch has tripped. VALVE MOTOR FAIL The limit switch on the valve may not have been wired correctly. P RETURN SENSOR FAIL The return air temperature thermocouple is open or failed. PROCESS TEMP SAFETY The high temperature snap switch of the process heater box has tripped.
Alarm Message Cause Corrective Action Dryer Status M1 LOW LEVEL The low level sensor on the machine 1 material loader is not detecting any material when there is material present in the loader. Make sure there is material in the drying hopper. Check the conveying filter. Clean or replace if necessary. - Dryer Normal : - Process blower ON. - Process heaters ON. - Regen heaters ON. - Alarm Message ON. - Alarm horn is OFF.
Alarm Message Cause Corrective Action Dryer Status M2 LOW LEVEL The low level sensor on the machine 2 material loader is not detecting any material. Check the sensitivity setting of the level sensor. Check the sensor, and replace if necessary. DH LOW LEVEL The low level sensor on the Drying Hopper material loader is not detecting any material. Make sure the material conveying tube is in the material source, and there is material available. Check the conveying filter. Clean or replace if necessary.
Alarm Message Cause Corrective Action Dryer Status M1 NO CONVEY The level sensor on the Machine 1 material loader is not detecting any material. Check the sensitivity setting of the level sensor. Check the sensor, and replace if necessary. M2 NO CONVEY The level sensor on the Machine 2 material loader is not detecting any material. Make sure there is material in the drying hopper. Check the conveying filter. Clean or replace if necessary.
Alarm Message Cause Corrective Action Dryer Status DH NO CONVEY The level sensor on the Drying hopper material loader is not detecting any material. Check the sensitivity setting of the level sensor. Check the sensor, and replace if necessary. - Dryer Normal : - Process blower ON. - Process heaters ON. - Regen heaters ON. - Alarm Message ON. - Alarm horn is OFF.
Chapter 7: Appendix 7-1 1. 2. 3. 4. 5. 6. 7. 8. 9. 10. 11. 12. 13. 14. 15. 16. 17. 18. 19. 20. 21. 22. 23.
Aftercooler Design Specifications Entering water temp. ºF 85ºF 50°F (If used as Plasticizer trap) ºC 29ºC 10°C (If used as Plasticizer trap) Drawings and Diagrams Figure 19: Standard Model (180°F to 250°F) Air Flow Schematic Pressure switch, makes sure the blower is functioning correctly. Dryer valve High pressure peripheral regenerative blower. 2” Hose 2” Hose Utilizing -40F dew point air to regenerate and cool the desiccant. 2” Hose 13X Molecular Sieve 8x12 beads.
Figure 20: High Heat Model (180°F to 400°F) Air Flow Schematic Pressure switch, makes sure the blower is functioning correctly. High pressure peripheral regenerative blower. Dryer valve 2” Hose Optional Return Air Cooler 2” Hose Utilizing -40F dew point air to regenerate and cool the desiccant. 2” Hose 13X Molecular Sieve 8x12 beads. Low watt density heaters, can operate safely with minimum air flow. Double wall constructed heater housing and desiccant container.
Figure 21: Low Heat Model (120°F to 250°F) Air Flow Schematic High pressure peripheral regenerative blower. Pressure switch, makes sure the blower is functioning correctly. Dryer valve 2” Hose Utilizing -40F dew point air to regenerate and cool the desiccant. 13X Molecular Sieve 8x12 beads. Double wall constructed heater housing and desiccant container.
7-2 Spare Parts List 575V 60 HZ 3PH 60CFM 60CFM 460V 3PH 400V 50 HZ 3PH 60CFM 60CFM 230V 3PH 220V 50 HZ 3PH 60CFM 60CFM 208V 3PH 575V 60 HZ 3PH 30CFM 30CFM 460V 3PH 400V 50 HZ 3PH 30CFM 30CFM 230V 3PH 30CFM 220V 50 HZ 3PH 30CFM 208V 3PH 3 575V 60 HZ 3PH 15CFM 15CFM 460V 3PH 15CFM 3 3 3 3 3 3 3 3 3 3 3 3 3 3 3 3 3 3 3 3 3 3 3 3 3 3 3 3 3 3 3 3 3 3 3 3 3 3 3 3 3 3 3 3 3 3 3 3 3 3 3 3 2 2 2 2 2 1 1 1 Chapter 7: Appendix 2 1 1 1 1 1 1 1 1 1 1 1
1 1 1 A0548555 1 1 1 4 5 0 0 0 0 0 7 0 0 0 0 0 * Dew Point Circuit Board LEVEL 2 ( Mechanical Components ) PART # SIZE Description A0548621 Ceramic Cap for the End of Heater Elements A0566478 750 Watts Heater element 208/220 Volts A0566479 750 Watts Heater element 230 Volts A0566480 750 Watts Heater element 400 Volts A0566481 750 Watts Heater element 460 Volts A0566482 750 Watts Heater element 575 Volts A0566483 1250 Watts Heater Element 208/220 Volts A0566484 1250 Watts Heater Element 230 Volts
7-3 Returned Material Policy Credit Returns Prior to the return of any material authorization must be given by the manufacturer. A RMA number will be assigned for the equipment to be returned. Reason for requesting the return must be given. ALL returned material purchased from the manufacturer returned is subject to 15% ($75.00 minimum) restocking charge. ALL returns are to be shipped prepaid. The invoice number and date or purchase order number and date must be supplied.
7-5 Dryer Identification (Serial Number) Tag (Located on back of Dryer) Company Logo XXX Series Dryer Model Number XXX-15 Max Drying Capacity HR 460V Serial Number 060701R 1Ǿ Date of Manufacture 06/2003 4.5A Over-current Protection Device (s) 4.
7-6 Technical Assistance Parts Department Call toll-free 7am–5pm CST [800] 423-3183 or call [847] 273-7700 Fax: [847] 273-7812 The ACS Customer Service Group will provide your company with genuine OEM quality parts manufactured to engineering design specifications, which will maximize your equipment’s performance and efficiency. To assist in expediting your phone or fax order, please have the model and serial number of your unit when you contact us.
