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NovaWheel™
DESICCANT WHEEL DEHUMIDIFYING DRYER
INSTRUCTION MANUAL
NW Series with 'NovaTouch' Touch Panel PLC
Models: NW-400, NW-600, NW-800, NW-1000, NW-1300 & NW-2000
Novatec, Inc
222 E. Thomas Ave.
Baltimore, MD 21225
Telephone: 410-789-4811
Fax: 410-789-3051
Parts Email: parts@novatec.com
Website: www.novatec.com
Service Email: service@novatec.com
Document#:
IM NW400-2000_10-07-08
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Summary of Contents for NovaTec NovaWheel NW Series
- Page 1 INSTRUCTION MANUAL NW Series with ‘NovaTouch’ Touch Panel PLC Models: NW-400, NW-600, NW-800, NW-1000, NW-1300 & NW-2000 Novatec, Inc 222 E. Thomas Ave. Baltimore, MD 21225 Telephone: 410-789-4811 Fax: 410-789-3051 Parts Email: parts@novatec.com Website: www.novatec.com Service Email: service@novatec.com Document#: IM NW400-2000_10-07-08...
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Page 2: Table Of Contents
NW Series NovaWheel Dryer INSTRUCTION MANUAL TABLE of CONTENTS SECTION PAGE FOREWORD…………………………………………………………………..3 1. SALES AND SERVIC………………………………………………………….3 2. SHIPPING AND INSPECTION………………………………………………..3 3. PRINCIPLE OF OPERATION………………………………………………..4 Product familiarization 4. INSTALLATION………………………………………………………………...6 4.1 LOCATION 4.2. CUSTOMER PIPING CONNECTIONS 4.3 ELECTRICAL CONNECTIONS 4.4 PRE-COOLER CONNECTIONS 5. -
Page 3: Foreword
Technical Service Department: 1-800-938-6682 ● Service@novatec.com 2. SHIPPING AND INSPECTION Although NOVATEC uses reputed carriers to deliver products, it has no control over the products once it leaves the manufacturing facility. Upon receiving the products, thoroughly inspect all equipment inside and out for damage that may have occurred during shipment. If any damage is found, a claim should be filed immediately with your carrier. -
Page 4: Principle Of Operation
NW Series NovaWheel Dryer INSTRUCTION MANUAL 3. PRINCIPLE OF OPERATION The NW NovaWheel Series dryer was engineered and designed to effectively remove moisture (in the vapor state) from hygroscopic plastic resins. This process is accomplished by the continuously rotating desiccant wheel and the three air streams (Process, Purge and Regeneration). - Page 5 NW Series NovaWheel Dryer INSTRUCTION MANUAL NovaWheel Instruction Manual Document#: IM NW400-2000_10-07-08...
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Page 6: Installation
NW Series NovaWheel Dryer INSTRUCTION MANUAL SPECIFICATIONS - NovaWheel Dryer Model NW-400 NW-600 NW-800 NW-1000 NW-1300 NW-2000 Max Material Flow - Lbs./Hr) 1000 1250 2000 (170 (227 (340 (454 (567 (907 kg/hr) kg/hr) kg/hr) kg/hr) kg/hr) kg/hr) 460-3-60 460-3-60 460-3-60 Voltage –... -
Page 7: Electrical Connections
NW Series NovaWheel Dryer INSTRUCTION MANUAL Process air connections: NW-400: 6 inches diameter NW-600: 6 inches diameter NW-800: 8 inches diameter NW-1000: 8 inches diameter NW-1300: 12 inches diameter NW-2000: 12 inches diameter 4.3 ELECTRICAL CONNECTIONS The NW Series dryer comes from the factory with all control circuits wired and the dryer needs to be connected to the proper power source. - Page 8 NW Series NovaWheel Dryer INSTRUCTION MANUAL 4.4 COOLING COIL CONNECTION A Cooling Coil is installed in NW series dryers and is required to lower the hopper return temperature and this increases the efficiency of dryer. Tower, city or chilled water is required at between 40 to 85°F. Connect the cooling water supply and return using flexible hose that is at least 2 feet long, to allow for easy removal of the cooling coil for cleaning.
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Page 9: Controls
NW Series NovaWheel Dryer INSTRUCTION MANUAL 5.0 CONTROLS The NW Series-dryer comes complete with the following controls: 5.1 PROCESS TEMPERATURE CONTROL The Temperature Control is a part of the NovaWheel NovaTouch PLC controller and controls the process outlet temperature as per the set value. In addition, there is a process high temperature limit thermostat and process return temperature safety, through the NovaWheel controller, is provided for extra safety. -
Page 10: Operating Instruction
NW Series NovaWheel Dryer INSTRUCTION MANUAL 6. OPERATING INSTRUCTION Before beginning final start up, check the correct blower rotation per the rotation arrows on both the process and the regeneration blowers. If the blowers are found to be rotating in the wrong direction, disconnect main power supply, reverse any two power supply leads to the dryer, reconnect power supply and check again. -
Page 11: Novatouch Controller Instructions
INSTRUCTION MANUAL 7. NOVATOUCH CONTROL Permissions: Some of the information contained in this manual is a reprint of Siemens Manuals. Novatec Inc obtained written permission to reprint portions, as needed, for this manual in 2001. Trademarks: All names identified by ® are registered trademarks of the Siemens AG. The remaining trademarks in this publication may be trademarks whose use by third parties for their own purposes could violate the rights of the owner. - Page 12 NW Series NovaWheel Dryer INSTRUCTION MANUAL You can enter numerical and hexadecimal values character by character using the numerical screen keyboard. Proceed as follows: 1. Touch the relevant IO field on the screen. The numerical screen keyboard opens and displays the current value. 2.
- Page 13 NW Series NovaWheel Dryer INSTRUCTION MANUAL The condition of a switch or display will be displayed in both language and the international ON/OFF icon. Example: On any screen, or appearing in any message, may be “[?]” or an . This is the indication that there is additional information available.
- Page 14 NW Series NovaWheel Dryer INSTRUCTION MANUAL Novatec Screen Map: The following map defines all of the screens provided for all engineering functions: The Quick-Op is the starting page for the dryer. It will display the current time and date once the Real Time Clock is properly set.
- Page 15 NW Series NovaWheel Dryer INSTRUCTION MANUAL The Main Menu is the starting page for the dryer. It will display the current time and date once the Real Time Clock is properly set. It will also show the communications Station ID (if so equipped.) The contrast of the screen may be adjusted using the associated touch pads.
- Page 16 NW Series NovaWheel Dryer INSTRUCTION MANUAL From Operation Screen 3, the current status of drying hopper #2 can be viewed. The graphics on this screen will change appearance in accordance with the mode of operation. On the Status Screen, all of the system responses can be monitored.
- Page 17 NW Series NovaWheel Dryer INSTRUCTION MANUAL The Real Time Clock menu allows the operator to set the clock in the PLC. To Program: Set the clock to program mode via the touch pad. Enter the year, month, day, hours, minutes, and seconds, day of the week, and the Daylight Savings Time applicable for your local time zone.
- Page 18 NW Series NovaWheel Dryer INSTRUCTION MANUAL The Auto Second Set Point Menu can be used to put or remove the dryer from second set point while unattended. When the system is enabled an icon will be displayed on the operations screens in the upper left corner. Here, the Process values for hopper #1 can be set or adjusted.
- Page 19 NW Series NovaWheel Dryer INSTRUCTION MANUAL On this screen, the alarm value for the system dew point is set. It also has the settings for the Moisture Manager. If the Moisture Manager is turned on the reactivation temperature will be decreased by 5 degrees per revolution of the desiccant cassette.
- Page 20 NW Series NovaWheel Dryer INSTRUCTION MANUAL The NOVATEC screen contains the software revision level (in the case of a standard) or the program number (in the case of a custom) for both the touch screen and PLC. Calibrate Touch Screen allows you to set up the touch pressure that will cause the screen to respond to the operator’s...
- Page 21 NW Series NovaWheel Dryer INSTRUCTION MANUAL This screen will allow you to turn on the water saver function and adjust the output response for whether your system has a N/O or N/C water saver solenoid. It is also used to turn the icons and functionality for the material control systems on or off.
- Page 22 NW Series NovaWheel Dryer INSTRUCTION MANUAL The PID Values can be used to adjust a temperature curve and is an integral part of the Auto tune function. Each PID Loop can be Auto tuned for the individual application. Since the alarms are disabled during the tuning, the temperature can be monitored via the data point provided.
- Page 23 NW Series NovaWheel Dryer INSTRUCTION MANUAL sample, a set of at least 100 samples must be acquired. For a loop with a sample time of 200 msec, acquiring 100 samples takes 20 seconds. For loops with a longer sample time it will take longer.
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Page 24: Maintenance Instruction
NW Series NovaWheel Dryer INSTRUCTION MANUAL Alarm messages will appear on one of the following 2 screens. The first screen (picture left) is the message screen that will have all of the alarms pertinent to the dryer. The screen may be accessed from the Main Menu and will appear on the screen during an alarm situation. -
Page 25: Hoses
NW Series NovaWheel Dryer INSTRUCTION MANUAL 8.5 HOSES Check hoses for excessive wear and replace if they show cracks. Check hose clamps for tightness and tighten if found loose. 8.6 ROTOR SEALS There are rotor seals at the top and the bottom of the rotor. These Teflon faced silicon seals separate the process from the reactivation purge compartments. -
Page 26: Preventive Maintenance Programmed
Inspect the face of the rotor to see that no surface damage has occurred. The rotor should turn smoothly upon the shaft. 9 PREVENTIVE MAINTENANCE PROGRAME following some recommended guidelines for maintaining your NOVATEC, NovaWheel Dryer. When followed, these suggestions will help you get years of additional service from your equipment. -
Page 27: Rotor Replacement
NW Series NovaWheel Dryer INSTRUCTION MANUAL 9.2.2 HOPPER/FILTERS Check the filter, filter cover, hopper door and hopper cover gasket for any tears or leaks. Locate the wire mesh at hopper outlet pipe, inside the top cover. Cleanse mesh by air pressure. 9.2.3 HOSES Check all the hoses for any tears or leaks. -
Page 28: Seal Replacement
NW Series NovaWheel Dryer INSTRUCTION MANUAL 11 SEAL REPLACEMENT The top and bottom silicon PTFE coated fabric flat seals which separates Normally they do not require service or replacement. However should damage occur, or if air leakage is suspected of causing poor performance, the seal should be replaced adopting following procedure. -
Page 29: Trouble Shooting
NW Series NovaWheel Dryer INSTRUCTION MANUAL 14 TROUBLE SHOOTING and ERROR MESSAGES TROUBLE PROBABLE REASON CORRECTIVE ACTION 1. Unit not running Control main circuit breaker Reset the breaker. tripped. Main power off. Check line and main. Control power interrupted. Check per item as per electrical wiring diagram. - Page 30 NW Series NovaWheel Dryer INSTRUCTION MANUAL TROUBLE PROBABLE REASON CORRECTIVE ACTION 5. Material in hopper Door gasket leaking of Check all gaskets (filter cover, hopper not getting dried damaged. doors, and hopper lids) and repair of properly. replace damaged gaskets. Leak in hose.
- Page 31 NW Series NovaWheel Dryer INSTRUCTION MANUAL TROUBLE PROBABLE REASON CORRECTIVE ACTION 9. Wheel rotor Rotor limit switch not Align the limit switch it should be reset turning but not aligned properly. by limit switch hump on each rotation. indexing or showing a RPH speed.
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Page 32: Warranty
The provisions in equipment specifications are descriptive, unless expressly stated as warranties. The liability of Novatec to the purchaser, except as to title, arising out of the supplying of the said equipment, or its use, whether based upon warranty, contract or negligence, shall not in any case exceed the cost of correcting defects in the equipment as herein provided.
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