PPE FX-D4 Series User manual

FX-D4 SERIES DESICCANT DEHUMIDIFIER
Installation, Operation, and Maintenance Manual
Plastic Process Equipment, Inc.
8303 Corporate Park Drive
Macedonia, OH 44056
Phone: [phone]
Fax: [phone]
E-Mail: pp[email protected]
For further information visit us on the web at http://www.ppe.com

Table of Contents
1 INTRODUCTION
1-1 FX SERIES DESICCANT DEHUMIDIFIER INTROCUCTION ......................................................4
1-2 PRINCIPLES OF OPERATION ...............................................................................................4
1-3 FX-D4 SERIES DESICCANT DEHUMIDIFIER SPECIFICATION .................................................5
1-4 FRONT PANEL CONTROLS ..................................................................................................6
2 INSTALLATION
2-1 INSPECTION UPON RECEIPT...............................................................................................8
2-2 PLACING THE EQUIPMENT.................................................................................................8
2-3 ELECTRICAL CONNECTIONS ...............................................................................................8
2-4 DUCK WORK CONNECTIONS..............................................................................................9
2-5 WATER CONNECTINS.........................................................................................................9
3 OPERATION
3-1 INITIAL STARTUP..............................................................................................................11
3-2 VERIFYING FAN ROTATION ..............................................................................................11
3-3 SET THE PROCESS OULET TEMPERATURE ........................................................................13
3-4 REGENERATION TEMPERATURE ......................................................................................13
3-5 DESICCANT ROTOR ROTATION ........................................................................................13
3-6 THERMAL PROBE.............................................................................................................14
3-7 HMI+PCB SETUP AND OPERATION...................................................................................14
4 MAINTENANCE
4-1 DESICCANT ROTOR ..........................................................................................................20
4-2 DESICCANT ROTOR SEALS................................................................................................21
4-3 DESICCANT ROTOR SHELL................................................................................................22
4-4 DESICCANT ROTOR DRIVE MOTOR ..................................................................................23
4-5 FILTERS ............................................................................................................................23
4-6 MAINTENANCE RECORD FORM .......................................................................................24
5 TROUBLESHOOTING
5-1 TROUBLESHOOTING INDEX .............................................................................................26
6 TECHNICAL INFORMATION
6-1 WIRING, MODEL: FX-50/100/180 (230V/3￠/60HZ)........................................................28
6-2 WIRING, MODEL: FX-100/180/300/400 (460V/3￠/60HZ) ..............................................32
6-3 EXPLOSION VIEW (FX SERIES) ..........................................................................................37

1
INTRODUCTION
1-1 FX SERIES DESICCANT DEHUMIDIFIER INTROCUCTION
Congratulations on your purchase of the PPE FX Series Desiccant Dehumidifier from Plastic Process
Equipment, Inc. The FX Series Desiccant Dehumidifier offers the finest in resin drying technology,
however, this machine can only provide maximum service if properly installed, operated, and maintained.
This manual is provided to familiarize you with the dehumidifier Instructions are provided to install,
operate and maintain your dehumidifier. Ultimate satisfaction depends on the quality of installation and a
thorough understanding of the equipment. The FX Series Desiccant Dehumidifier is built around tested
engineering principles and has passed a thorough inspection for quality of workmanship and function.
There are many models in the FX Series Desiccant Dehumidifier line, some differences may exist between
the pictures in this manual and your specific dehumidifier.
1-2 PRINCIPLES OF OPERATION
The function of the FX Series Desiccant Dehumidify is to continuously remove vapor state moisture from
an air stream. This is accomplished by using a rotating desiccant media and three separate air streams.
Figure 1-1 illustrates the three air streams.
The first air stream passes the moisture laden air from the drying hopper through the desiccant media. After
processed air has been exposed to the desiccant media, the air is returned to the drying hopper. As the
desiccant media adsorbs moisture from the process stream, it is rotated out of the process stream into the
reactivation stream. This second air stream is heated to drive moisture out of the desiccant media, and
prepare it for more adsorption. The desiccant media then rotates out of the reactivation air stream into the
purge air stream. The purge stream consists of a small portion of the process outlet air that cools the
desiccant media. Once cooled, the desiccant media rotates back into the process stream to begin adsorption
again. This cycle is done on a continuous basis, providing a constant drying process. The FX Series
Desiccant Dehumidifiers are designed with the process and reactivation air streams flowing in opposite
directions. This counter flow design maximizes the energy efficiency of the equipment.

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Figure 1-1. Air streams
1-3 FX-D4 SERIES DESICCANT DEHUMIDIFIER SPECIFICATION
MODEL NO. FX-050 FX-100 FX-180 FX-300 FX-400
Air Flow CMH 50 100 180 300 400
Dewpoint °C -40° -40° -40° -40° -40°
Drying Blower KW 0.4 0.75 2.2 3.4 5.5
Drying Heater KW 4 6 12 15 18
Regen. Blower KW 0.18 0.18 0.4 0.75 0.75
Regen. Heater KW 2.5 4 5 8.5 8.5
Processing Heater Honeycomb Rotor
Process inlet inch 2 2.5 2.5 3 3
Process Outlet inch 2 2.5 2.5 3 3
Cooling Water Flow Ltr/min 5 15 30 40 50
Water Connect inch 3/4 1 1 1 1
Power Supply 3Ø，220~460VAC，50/60Hz
Total Power KW 7.08 10.93 19.6 27.65 30
DIMENSIONS
L mm 770 910 910 1045 1045
W mm 680 880 880 930 930
H mm 1280 1630 1630 1930 1930

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1-4 FRONT PANEL CONTROLS
The front panel of the FX Series Dehumidifier contains all controls and indicators necessary for
dehumidifier operation. For a description of the controls and indications, refer to Figure 1-2 and the
following list:
1. Power On indicator – This black switch turned to “on” when power has been supplied to the
dehumidifier. This does not indicate that the unit is turned on. This only indicates that power is
available to the dehumidifier.
2. System On indicator – This panel screen light illuminates when the Power switch is in the ON
position. This indicates that the unit is turned on.
3. Faults indicator – This panel screen showed red light illuminates on “STATUS” when the bed
failure alarm occurs, or a failure of motor protection circuit breaker. A bed failure alarm will occur if
the desiccant rotor does not rotate at least once every ten minutes.
4. Audible Alarm – The audible alarm will sound to indicate a fault on “STATUS”.
5. Dew point Display – This indicator displays the current process outlet dew point.
NOTE
Dew point Set point is for reference only; dew pointer is strictly display, not control.
6. Process Temperature (Dry temp) – This indicator/controller displays the temperature selected by
the Temperature Indication selector, and controls the process outlet temperature. The PV of the
display shows the currently selected process variable. The SV of the display shows the process outlet
temperature set point. For flexible tubing and water flow requirements see chart below:

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7. Regeneration Temperature (Desiccant temp)– This selector controls the temperature displayed on
the Temperature Controller. The PV of the display shows the currently selected process
variable. The SV of the display shows the process outlet temperature set point. (Default value
180 °C /356 °F)
8. Power switch – This switch controls power to the dehumidifier.
Figure 1-2. Front Panel Controls and Indicators

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2
INSTALLATION
2-1 INSPECTION UPON RECEIPT
Thoroughly inspect the dehumidifier to ensure no damage has occurred during shipping. Inspect both the
inside and outside of the dehumidifier. If any damage is found, a claim should be filed with the shipping
company immediately. Please notify Plastic Process Equipment immediately so we may provide whatever
assistance we can.
Check dehumidifier external surfaces for damage.
Ensure the desiccant rotor is tightly secured in place.
Ensure the drive chain is in good contact with the desiccant rotor, tensioner arm, and drive
pulley.
Ensure the top and bottom desiccant rotor seals are in good contact with the desiccant rotor.
Check all electrical connections to ensure they are tight.
2-2 PLACING THE EQUIPMENT
The dehumidifier should be carefully located and set in place on a level surface. If mounting the
dehumidifier on a machine or stand, the dehumidifier must be adequately supported. At a minimum,
support is required below the caster mounting plates. Dehumidifier maintenance and service will require
access to all sides of the dehumidifier. If the unit is machine or stand mounted, leave enough room on all
sides to open all dehumidifier access doors.
2-3 ELECTRICAL CONNECTIONS
Ensure the supply power requirements are in accordance with the dehumidifier
nameplate data. Serious damage to the dehumidifier motor and control systems
can occur if incorrect power is supplied to the dehumidifier.
Install electrical connections in accordance with all applicable federal, state, and local regulations. Good
electrical practices should be followed to achieve the best installation possible. Refer to the electrical
schematic provided with this manual before installing any electrical connections. If a disconnect switch is
not furnished with your dehumidifier, one should be installed adjacent to the dehumidifier for safety and

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ease of servicing. Electrical wiring to the equipment must be adequately sized for the minimum amperage
shown on the unit nameplate.
2-4 DUCK WORK CONNECTIONS
NOTE
All supply and return air ductwork and hose connections for the dehumidifier must
be air and vapor tight. Failure to achieve air and vapor tight connections may
impact dehumidifier performance.
The most common type of ductwork used with resin drying equipment is flexible hose that is both
temperature and moisture resistant. Moisture resistance is extremely important for proper dehumidifier
performance. Even though the dehumidifier is removing moisture from the hopper return air, the air will
not be dry when it reaches the process if moisture enters the dry supply air stream through leaks in the
ductwork. Air ducts must be properly sized to keep pressure losses at a minimum. Pressure loss must not
exceed the designed static capacity. Connect the process inlet and process outlet hoses to the appropriate
connections on the back of the dehumidifier cabinet. Refer to Figure 2-1 for hose connection
locations.
Figure 2-1. Hose Connections
2-5 WATER CONNECTINS
Water should be supplied to the unit to achieve the rated performance. Connections ports for the inlet
air-cooling coil are located on the rear of the dehumidifier assembly. When facing the rear of the
dehumidifier the connections are located in the lower left hand corner of the rear panel. The connections
are male NPT. Water Temperature should be between 40 & 80° F. For flow requirements refer to the
table on the following page.

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Model
Male NPT connection
Iced water capacity
Iced water flow LPM/GPM
FX-50
1/2"
1500Kcal/H/10℃/50°F
10/2.6
FX-100
1”
3000Kcal/H/10℃/50°F
20/5.2
FX-180
1”
6000Kcal/H/10℃/50°F
30/7.8
FX-300
1”
9000Kcal/H/10℃/50°F
50/13
FX-400
1”
14000Kcal/H/10℃/50°F
60/16
FX-700
1”
27000Kcal/H/10℃/50°F
100/26
FX-1000
1”
42000Kcal/H/10℃/50°F
140/37
Water connections, rear of unit Water lines inside of unit