NovaTec NovaWheel NW Series Instruction Manual Download Page 6

 

NovaWheel Instruction Manual

                                6                            

Document#: IM NW400-2000_10-07-08

 

NW Series NovaWheel Dryer 

INSTRUCTION MANUAL

     

SPECIFICATIONS - NovaWheel

TM  

Dryer

 

 

Model  

NW-400  NW-600  NW-800 NW-1000 NW-1300 NW-2000

Max Material Flow - Lbs./Hr) 

375 

(170 

kg/hr) 

500 

(227 

kg/hr) 

750 

(340 

kg/hr) 

1000 

(454 

kg/hr) 

1250 

(567 

kg/hr) 

2000 

(907 

kg/hr) 

Voltage – Phase - Hz  460-3-60

460-3-60 

460-3-60  460-3-60 460-3-60  460-3-60 

Water Required - Nominal (GPM): 

10 

15 

15 

16 

Customer Water Line Size (min): 

1/2” id  

(20 mm) 

5/8” id  

(20 mm) 

3/4” id  

(20 mm) 

1” id 

(25 mm) 

1” id 

(25 mm) 

1” id 

(25 mm) 

Wheel Speed - nominal 

(revolutions per hr): 

10 10 10 10 10 10 

 

 

 

 

 

 

 

 

Process Air dew Point (nominal):   

-40ºF (-40°C)

 

Drying Temperature:  150-350°F (66-177°C) 

 
 
4.  INSTALLATION       

 

CAUTION:   FOLLOW ALL NATIONAL AND LOCAL ELECTRICAL AND MECHANICAL 

CODES, AS REQUIRED.  ONLY QUALIFIED AND TRAINED PERSONNEL 
SHOULD INSTALL AND OPERATE THIS EQUIPMENT. 

 

4.1   LOCATION 

 

 

Locate your NW Series dryer in a low traffic area, this will avoid disturbance of the 
hoses connecting your dryer to the hopper. Allow sufficient distance (at least 2 feet) 
from the surrounding equipment, so the access doors may be opened to perform routine 
maintenance on the dryer and for safe operation.   
 
There must be a grounded power source that will supply the correct voltage per the 
dryer nameplate.   
 
Water (tower or chilled at +45 to 85°F) must be supplied to the cooling coil using flexible 
hoses. 

 

4.2  CUSTOMER PIPING  CONNECTIONS 
 

Care should be taken while connecting the process air piping. If hoses are used, it 
should suitable for at least 350°F and silicone hose is recommended.  On larger 
piping, hard piping with steel tubing should be considered.  The piping should not 
block the access doors of the dryer.  See below for the correct connection size from 
the dryer to the hopper.   
 

 

 

 

Summary of Contents for NovaWheel NW Series

Page 1: ...ephone 410 789 4811 Fax 410 789 3051 Parts Email parts novatec com Website www novatec com Service Email service novatec com NovaWheel DESICCANT WHEEL DEHUMIDIFYING DRYER INSTRUCTION MANUAL NW Series...

Page 2: ...TIVATION TEMPERATURE CONTROL 5 3 PROCESS FILTER AIR PRESSURE SWITCH PPS1 5 4 PRESSURE AND REACT AIR PRESSURE TRANSMITTER 6 OPERATING INSTRUCTION 10 7 NOVATOUCH CONTROLLER INSTRUCTIONS 11 8 MAINTENANCE...

Page 3: ...rmation This should save valuable installation and operation time later and will help insure safe operation and long life 1 SALES AND SERVICE NOVATEC maintains qualified sales engineering and service...

Page 4: ...ough third air stream called purge air stream Here the desiccant media is cooled down by some of the process air before entering back into the process to provide for better performance The three air s...

Page 5: ...NovaWheel Instruction Manual 5 Document IM NW400 2000_10 07 08 NW Series NovaWheel Dryer INSTRUCTION MANUAL...

Page 6: ...ALIFIED AND TRAINED PERSONNEL SHOULD INSTALL AND OPERATE THIS EQUIPMENT 4 1 LOCATION Locate your NW Series dryer in a low traffic area this will avoid disturbance of the hoses connecting your dryer to...

Page 7: ...ctory with all control circuits wired and the dryer needs to be connected to the proper power source CAUTION All electrical connections must be made by qualified electricians per national and local el...

Page 8: ...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...

Page 9: ...e heater and the controls were supplied loose for installation on the hopper On central drying systems the process heaters are located on the hoppers 5 2 REACTIVATION TEMPERATURE CONTROL The reactivat...

Page 10: ...qualified electrician familiar with three phase electrical wiring Once the hose and electrical connections are made the NW Series dryer is now ready for operation To start the dryer 1 0 Turn the main...

Page 11: ...r their own purposes could violate the rights of the owner System Specifications All information on the TP177M touch screen and the S7 200 series PLC can be obtained from the Siemens websites shown be...

Page 12: ...d or disabled The following options for entering values are available The current value is deleted when you enter the first character Enter the value again Use the and keys to move the cursor within t...

Page 13: ...information available By pressing the symbol an information page will appear on the screen The information page will be removed by pressing the X in the upper right hand corner of the page Each time...

Page 14: ...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 se...

Page 15: ...he actual touch function of the screen so that it may be cleaned From here the dryer can be started and all other operational functions accessed From the Operation Screen all of the system responses c...

Page 16: ...f the dryer 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...

Page 17: ...g to the selected screen 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...

Page 18: ...r blower and temperature control will shut down Here the Process values for hopper 2 can be set or adjusted The high and low deviation range for the alarm second set point and active set point values...

Page 19: ...and the protection will become active after leaving this screen 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...

Page 20: ...ng the associated drop down menus the size of the dryer and dew point sensor can be set Set the Temperature Display for C or F as required This will re calculate the set points to either C or F and pl...

Page 21: ...t is also used to turn the icons and functionality for the material control systems on or off The Reactivation Menu screen will allow you to adjust the values for the reactivation heater This only app...

Page 22: ...nus from set point that the PV process variable is allowed to make without causing the relay controller to change the output This value is used to minimize the effect of noise in the PV signal to more...

Page 23: ...hat the process be in a stable state prior to initiating an auto tune sequence This will yield a better result for the hysteresis value and it will ensure that the process does not go out of control d...

Page 24: ...A program should be established to insure the filters are cleaned 8 3 PROCESS REGENERATION FILTERS TURN THE MAIN DISCONNECT SWITCH OFF Unscrew the black knob remove the filter access cover open wing...

Page 25: ...causing poor performance the seal should be replaced If there is any question about adjusting the seals please contact our service department 8 6 CHAIN AND SPROCKETS Chain and sprockets also require...

Page 26: ...ng items should be checked on following basis 9 1 BI WEEKLY BASIS 9 1 1 REGENERATION PROCESS FILTERS Check for excessive dirt or debris built up on your process and regeneration filters 9 1 2 PROCESS...

Page 27: ...dversely affect the performance of the machine Also check that all hose clamps are tight and in the proper position 10 ROTOR REPLACEMENT Desiccant rotor removal is accomplished by the following 1 Remo...

Page 28: ...ction does not get offset 6 After joining the seal let it dry for 24 hrs NOTE The smooth Teflon coated side of the seal should always on the top and there should not be any silicon sealant remaining o...

Page 29: ...tating in wrong direction Temperature sensor connection loose or reversed Check set temperature for proper drying process temperature Ensure temperature probe is installed in the dryer outlet or in th...

Page 30: ...ture levels in plastic resin being dried in hopper reducing the drying performance Reduce process airflow using a damper valve Check the cooling water is flowing to the cooling coil and make sure the...

Page 31: ...er INSTRUCTION MANUAL TROUBLE PROBABLE REASON CORRECTIVE ACTION 9 Wheel rotor turning but not indexing or showing a RPH speed Rotor limit switch not aligned properly Rotor drive motor defective Align...

Page 32: ...he expiration of said warranty periods Novatec shall not in any event be held liable for any special indirect or consequential damages Commodities not manufactured by Novatec are warranted and guarant...

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