POSTPROCESS CENTI User manual

CENTI QuickStart Guide
Automated Support Removal System
PostProcess Technologies, Inc. • www.postprocess.com • REV C

Copyright
Conventions
Copyright © 2018 by PostProcess Technologies Inc. “POSTPROCESS”. All rights reserved. The information
disclosed herein is proprietary information owned by POSTPROCESS. This information shall be used solely and
exclusively by employees and customers of POSTPROCESS as documentation for the safe operation of
processing equipment provided by said company. The information herein shall be used by or disclosed to others
only for this purpose.
Published: February 2018
Disclaimer: The content of this guide is subject to change without prior notice. Please contact POSTPROCESS
for the most current information. Items marked with an asterisk * have been identied as likely to be updat-
ed. Picture on front cover is for illustrative purposes only and does not reect actual dimensions.
WARNING
CAUTION
NOTE
Draws attention to an operating procedure, practice, or condition, etc., that may result in injury or death if not
carefully observed or followed.
Draws attention to an operating procedure, practice, or condition, etc., that may result in damage to equipment if
not carefully observed or followed.
Draws attention to an operating procedure, practice, or condition, etc., that must be emphasized or provides
information to simplify procedures tasks.
Any time a screen or button is referenced the following formatting will be used.
Screens – References to a screen on a machine should be Bold and Italicized. References to gauges on a
screen will be italicized.
Buttons – References to a button that can be pressed or activated by an operator will be BOLD AND
CAPITALIZED.
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Table of Contents
1 OPERATION.........................................................................................................................................................................
1.1 Connecting Power to the CENTI.....................................................................................................................
1.1.1 Emergency Stop Button......................................................................................................................
1.2 Automatic Operation – Setup/Start..............................................................................................................
1.3 Using the Control Screen..................................................................................................................................
1.3.1 The FUNCTION Button.......................................................................................................................
1.3.2 Setting the Target Temperature.......................................................................................................
1.3.3 Setting the Ultrasonics Time............................................................................................................
1.3.4 Setting the Ultrasonics Power..........................................................................................................
1.3.5 Selecting the Temperature Unit of Measure..................................................................................
1.3.6 Setting the Degas Time.....................................................................................................................
1.4 Degas Operations.............................................................................................................................................
1.4.1 Degas Procedures...............................................................................................................................
1.4.2 Degassing Information......................................................................................................................
1.5 Overview of Ultrasonic Modes.......................................................................................................................
1.5.1 Timed Sonics Mode...........................................................................................................................
1.5.2 Constant Sonics Mode......................................................................................................................
1.5.3 Auto Sonics Mode..............................................................................................................................
1.6 Tank Temperature Calibration.......................................................................................................................
2 GENERAL CARE AND MAINTENANCE.........................................................................................................................
2.1 CENTI Drain Valve Installation.......................................................................................................................
2.2 Filling or Draining the CENTI..........................................................................................................................
2.2.1 Filling the Tank....................................................................................................................................
2.2.2 Draining the Tank................................................................................................................................
2.3 Cleaning the Tank.............................................................................................................................................
2.4 Maintaining Detergent Levels........................................................................................................................
2.5 Exceeding Tank Capacity................................................................................................................................
2.6 Covering the Tank............................................................................................................................................
3 TROUBLESHOOTING.......................................................................................................................................................
3.1 The CENTI will not start..................................................................................................................................
3.2 The CENTI is on but the detergent is not heating properly.....................................................................
3.3 The tank will not drain when the valve is open...........................................................................................
3.4 Error Code (Err) is displayed...........................................................................................................................
3.5 The CENTI is operating but the display is blank.........................................................................................
3.6 Unit shuts itself down and an Alarm indicator is on the display..............................................................
4 POINT OF CONTACT.........................................................................................................................................................
5 REVISION HISTORY..........................................................................................................................................................
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List of Figures
Figure 1. Main Power Switch............................................................................................................................................
Figure 2. ON/STANDBY Button........................................................................................................................................
Figure 3. Control Screen....................................................................................................................................................
Figure 4. Function Button..................................................................................................................................................
Figure 5. Drain Valve...........................................................................................................................................................
Figure 6. Drain Valve Assembly........................................................................................................................................
Figure 7. Power Cord Receptacle...................................................................................................................................
Figure 8. Fluid Level Indicator.........................................................................................................................................
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Overview
This QuickStart Guide is intended to explain the basic setup and operation of the CENTI Support Removal
machine. Read this guide thoroughly before operating the CENTI to ensure safe and efcient operation.If a
question is not answered in this guide, contact POSTPROCESS for additional support.
The CENTI is designed to remove excess material deposited during 3D printing processes. The CENTI uses a
combination of ultrasonics, heat and detergents to remove the excess material.
While the CENTI is robust, care should be used during operation. When accessing the detergent tank,
carefully lift and remove the lid. Be careful when extracting nished parts to limit the amount of detergent that is
lost during the removal process. Ensure no heavy materials are stored above the CENTI that may fall and
damage it. As a general rule or unless otherwise directed, to determine the location of various components
discussed in this guide, stand in front of the CENTI and look front to back.

Warnings
Failure to adhere to any of the warnings below could void the warranty. Read thoroughly before operating the
machine. If the machine appears to be malfunctioning in any way, immediately Turn Off the POWER button and
refer to the Troubleshooting section of this guide on page 15. If the issue is not able to be resolved, call
POSTPROCESS for additional support.
• Do not operate the unit without proper grounding.
• Do not allow alcohol, gasoline or other ammable solutions near the machine. Doing so could cause a
re or explosion.
• Do not touch the detergent with bare skin. Use nitrile gloves, laboratory-style eyeglasses and other
necessary personal protective equipment when performing any operations including removing parts
where skin could come into contact with the detergent.
• Do not attempt to disassemble or repair the machine.
• Do not place the power cord in a location where it may come into contact with water or liquids.
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Warnings, Cautions and Notes
Cautions
• Connect the unit only to 110v power.
• Use only POSTPROCESS detergents. Do not add any other liquid solutions to the machine.
• Do not operate the machine without sufcient detergent in the tank.
Ventilation
PostProcess Technologies detergents are specically formulated chemistry for maximized 3D printed support
removal efciency. It is recommended that the equipment be located in a well ventilated room. Specic
ventilation requirements can vary widely due to size of the install room, existing ventilation (positive or negative)
and differences in individual sensitivities to airborne scents or fragrances. For more information on the safe use
of POSTPROCESS detergents refer to the SDS for the specic detergent used.
Caution should be used whenever working with electrically-powered
equipment. If there is an emergency situation, it is important to note
that hitting the ON/STANDBY button does not turn off power to the
CENTI. It turns off the operating cycle only. To shut off power to the
CENTI, turn off the MAIN POWER SWITCH. (For switch location, see
Figure 1. Location of Main Power Switch)
Detergent Safety
As noted in the safety warnings above, it is important that operators do not come into contact with any form of
detergent with bare or uncovered skin.
• When working with or near detergents, always wear nitrile gloves.
• Wear laboratory-style protective glasses.
• If bare skin comes in contact with detergent, thoroughly wash the
body part with soap and warm, clean water.
• It is recommended that an eyewash station is near the CENTI and
any detergent storage areas.

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1. OPERATION
1.1 Connecting Power to the CENTI
The CENTI is delivered with an industrial power cord. Use only the power cord supplied by POSTPROCESS with
the CENTI. Connect the CENTI only to 110v power.
1.1.1 Power Button
The MAIN POWER SWITCH is located on the rear and lower
right of the CENTI. Once it is connected to 110 v power,
press the MAIN POWER SWITCH to the “I” or On position.
The ON/STANDBY button for the CENTI is
located to the left of the Control screen (See
Figure 2). To power up the CENTI, press the
ON/STANDBY button. When the Control
Screen is lit, the CENTI is on.
Figure 1. Location of Main Power Switch
Figure 2. ON/STANDBY Button
WARNING
CAUTION
Do not place the power cord in a location where it could come into contact with water or other liquid substances.
It is recommended to keep the entire power cord suspended above the oor surface.
If the CENTI appears to be malfunctioning immediately PUSH the ON/STANDBY button and turn off the MAIN
POWER SWITCH (See Figure 1.) Then refer to the Troubleshooting section of this QuickStart Guide or contact
POSTPROCESS support for further information.
NOTE
Before connecting or disconnecting the CENTI to a power outlet or inserting/removing the power cord, ensure
the Main Power Switch is in the “O” or Off position. Insert the power cord into the slot shown in the picture below.

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1. OPERATION
1.2 Auto Operations
If there is not much variance in processing settings, the CENTI can be set up to run in AUTO Mode after turning it
on via the ON/STANDBY button. Pressing the AUTO button starts the CENTI automatic operating mode. When
this mode is activated, the CENTI will perform the following actions: (Keep in mind that the unit will use the last
set of parameters that were entered via the Fn button.)
• The heater will turn on to bring the detergent up to the Set Temperature. See
Section 1.3.2 – Setting the Target Temperature.
• Once the set temperature is reached the Ultrasonics are activated. See
Section 1.3.4 – Setting the Ultrasonic Power.
• Once the ultrasonics timer reaches “0” minutes the Auto Cycle is complete. See
Section 1.3.3 – Setting the Ultrasonic Timer.
1.3 Using the Control Screen
The Control Screen shown below is the operating screen to access all CENTI functions. The screen displays all of
the current operating metrics during a cycle.
Figure 3. Control Screen
NOTE
If the detergent in the tank does not reach the Set Temperature within the rst 120 minutes, the Auto Cycle will
shut down. If this occurs, the screen will show the Auto icon ashing. If during an Auto Cycle, the DEGAS button
is pressed, the cycle will pause and the ultrasonics will restart after the Degas cycle. See Section 1.4 - Degas
Operations.

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1. OPERATION
1.3.1 The FUNCTION Button
The FUNCTION (Fn) Button (shown below) allows the operator of the CENTI to access the functionality settings.
The CENTI Fn Button is disabled if the machine is running in Auto Mode. Each time the Fn Button is pressed, it
advances to the next setting. See the list below for corresponding settings. If no further key is pressed after 15
seconds the CENTI returns to a ready state. If changes are made, but no key is pressed after 15 seconds the
changes are saved prior to returning to a ready state.
• Press Fn (1X) once to Set Temperature
• Press Fn (2X) twice to Set Ultrasonics Time
• Press Fn (3X) three times to Set Ultrasonic Power
• Press Fn (4X) four times to Select Celsius or
Fahrenheit
• Press Fn (5X) ve times to Set Degas Time
Pressing the Fn Button once from any setting
advances the screen to the next function. The LED
icon for each function will ash when activated.
Figure 4. Function Button
1.3.2 Setting the Target Temperature
Pressing the Fn Button once accesses the temperature control settings. Once this is
initiated, the icon highlighted on the left of the display begins blinking. To adjust this
temperature setting, use the “UP” and “DOWN” Arrow” as shown left until the desired
temperature is reached.
The temperature displayed below the Set Temperature is the Actual
Temperature of the detergent in the tank. The icon to the right of the
actual temperature reading is the Heater icon. When this is displayed,
the heater is on and running.
WARNING
When operating the machine with PG1.1 detergent for SLA parts, do not allow the detergent temperature to
exceed 110°F.

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1. OPERATION
1.3.3 Setting the Ultrasonics Time
1.3.4 Setting the Ultrasonics Power
Pressing the Fn Button twice accesses the Time Settings
for ultrasonics. If you want the ultrasonics to run constantly
throughout the cycle, press the UP arrow and a small “innity”
icon will be displayed as shown left.
The CENTI has two levels of ultrasonic power: High or Low. To set the ultrasonics power level, press the Fn
button three times or until the Sonics icon is ashing. Press the UP arrow to set ultrasonics for High power and
press the DOWN arrow for Low power.
Depiction of the Full ultrasonic power setting.
Depiction of the Low ultrasonic power setting.
To set up the ultrasonics to run for a specied period of time,
press the DOWN arrow and select a run time in minutes from
1 to 99.
To increase or decrease the time quickly, press and hold the
up or down arrow. The time values are circular, pressing the
down arrow from 1 will take the value to 99 and pressing the
up arrow from 99 takes the value to 1.
While the time is being set the clock and the numerals will
be ashing. The Ultrasonics icon will be displayed to indicate
that ultrasonics are the function being set.

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1. OPERATION
1.3.5 Selecting the Temperature Unit of Measure
1.3.6 Selecting the Degas Time
The CENTI is capable of displaying the tank temperature in Fahrenheit (˚F) or Celsius (˚C). To set the temperature
unit, press the Fn button four times or until the temperature icon is blinking. Press the UP arrow for temperatures
to be displayed in Fahrenheit or the DOWN arrow for the readings to be in Celsius. The temperature readings are
located at the left side of the Control screen as shown below. In the example shown the temperature units are
displayed in Fahrenheit.
The CENTI has built-in Degas functionality to remove excess gasses from uids. For further information see
Section 1.4.1 - Degas Procedures. To set the timer for a Degas cycle press the Fn button ve times or until the
Degas icon begins ashing. The Degas icon will display and the time clock and minute counter will begin ashing.
Press the UP or DOWN arrow to scroll to your desired time in minutes from 1 to 99.

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1. OPERATION
1.4 Degas Operations
1.4.1 Degas Procedures
1.4.2 Degassing Information
1.5 Overview of Ultrasonic Modes
Anytime detergent is used for the rst time (either upon initial ll or when a signicant amount is added to the tank),
there is likely to be excess gasses trapped in the uid. A simple Degassing cycle will rectify the issue allowing the
CENTI to run at peak efciency. To run a Degas cycle:
1. Turn on Main Power Switch (See Figure 1. – Main Power Switch)
2. Press the ON/STANDBY button (See Figure 2. – Control Screen)
3. Set the Degas time (Default time is 5 Minutes). To change the Degas time, press the Fn button 5 times. The
Degas icon will appear and the Set Time icon will ash. Press the UP/DOWN buttons to change the Degas cycle
time.
4. Press the DEGAS button once to begin the Degas cycle. At any time during the cycle, the UP/DOWN buttons can
be used to alter the Degas cycle time. To stop the Degas cycle at any time, press the DEGAS button.
5. Once the Degas cycle is complete the CENTI is ready for normal operations.
Dissolved gases (most often air) can reduce the effectiveness of the ultrasonic action and the capabilities of the
detergent to remove support material of printed parts. During normal use, the detergents will naturally degas over
time, but utilizing a Degas cycle will speed up that process and return the CENTI to optimum efciency.
There are three Ultrasonic Modes of operation. These are identied below:
1. Timed Sonics – When operating in Timed Sonics Mode, a timer counts down the remaining time that sonics will
run in the cycle. For Information about operating in Timed Sonics Mode see Section 1.5.1 – Timed Sonics Mode.
2. Constant Sonics – In Constant Sonics Mode, the ultrasonics will continue until the SONICS cutton is pressed or
power is turned off to the CENTI. For Information about operating in Constant Sonics Mode see Section 1.5.2 –
Constant Sonics Mode.
3. Auto Sonics – In Auto Sonics Mode the sonics begin as soon as the set temperature is attained and will continue
until the cycle timer reaches “0” minutes. For Information about operating in Auto Sonics Mode see Section 1.5.3 –
Auto Sonics Mode.
In any of the above Sonics Modes the ultrasonics
can be stopped at any time by pressing the
SONICS button. (See gure at left)
NOTE
Detergents that have not been in use for 24 hours or longer will have reabsorbed some gases. In this situation,
ALWAYS run a Degas cycle prior to support removal operations.

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1. OPERATION
1.5.1 Timed Sonics Mode
1.5.2 Constant Sonics Mode
1.5.3 Auto Sonics Mode
To run a Support Removal cycle using ultrasonics for a set period of time, use the following steps:
1. Turn on Main Power Switch (See Figure 1. – Main Power Switch)
2. Press the ON/STANDBY Button (See Figure 2. – Control Screen)
3. If necessary, run a Degas cycle. See Section 1.4 – Degas Operations for more information.
4. Use the UP/DOWN buttons to set the time you want the support removal cycle to run.
5. Set the detergent temperature in the tank by pressing the Fn button once. The Set Temperature icon will ash.
Next, press the UP/DOWN buttons to set the tank to the desired temperature and activate the heater by pressing the
HEAT Button.
6. Set the ultrasonic power level. See Section 1.3.4 – Setting the Ultrasonics Power.
7. Press the SONICS button.
8. Place the item to be cleaned into the tray and slowly lower it into the tank. When items are processed, slowly
remove them from the tank and rinse them with clean, warm water.
To run a Support Removal cycle using constant ultrasonics, use the following steps:
1. Turn on Main Power Switch (See Figure 1. – Main Power Switch)
2. Press the ON/STANDBY Button (See Figure 2. – Control Screen)
3. If necessary, run a Degas cycle. See Section 1.4 – Degas Operations for more information.
4. Set the Sonics Mode to Constant. See Section 1.3.3 – Setting the Ultrasonics Time.
5. Set the detergent temperature in the tank by pressing the Fn Button once. The Set Temperature icon will ash.
Next, press the UP/DOWN buttons to set the tank to the desired temperature and activate the heater by pressing the
HEAT Button.
6. Set the ultrasonic power level. See Section 1.3.4 – Setting the Ultrasonics Power.
7. Press the SONICS button.
8. Place the item to be cleaned into the tray and slowly lower it into the tank. When items are processed, slowly
remove them from the tank and rinse them with clean, warm water.
To run a Support Removal cycle in Auto Mode, use the following steps:
1. Turn on Main Power Switch (See Figure 1. – Main Power Switch)
2. Press the ON/STANDBY Button (See Figure 2. – Control Screen)
3. If necessary, run a Degas cycle. See Section 1.4 – Degas Operations for more information.
4. Use the UP/DOWN buttons to set the time you want the support removal cycle to run.
5. Set the detergent temperature in the tank by pressing the Fn Button once. The Set Temperature icon will ash.
Next, press the UP/DOWN buttons to set the tank to the desired temperature and activate the heater by pressing the
HEAT Button.
6. Set the ultrasonic power level. See Section 1.3.4 – Setting the Ultrasonics Power.
7. Press the SONICS button.
8. Press the AUTO button. The cycle will not begin until the temperature set point is reached.

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1. OPERATION
2. GENERAL CARE AND MAINTENANCE
9. Place the item to be cleaned into the tray and slowly lower it into the tank. When items are processed, slowly
remove them from the tank and rinse them with clean, warm water.
10. While running in Auto Mode the Fn button is deactivated.
Figure 5. Drain Valve
NOTE
While running ultrasonics in any mode, to pause or stop sonics press the SONICS button. Press the SONICS button
again to resume. If the AUTO button is pressed while running in Auto Mode the cycle pauses but will restart from
the beginning of the cycle when the AUTO button is pressed to resume operation.
1.6 Tank Temperature Calibration
2.1 CENTI Drain Valve Installation
The CENTI tank temperature control is factory calibrated. Monthly temperature calibration should be performed to
keep the CENTI running at peak efciency. Calibration can occur while detergent is at room temperature or any other
operating temperature. To calibrate:
1. Press the Fn button four times until the Current Temperature icon is ashing. Press the UP button to select ˚F.
Next press the Fn button two more times to ready the unit.
2. Press the ON/STANDBY button to turn off the CENTI.
3. Press both the ON/STANDBY button and the Fn button simultaneously. The bottom left temperature digits and
the Current Temperature icon will illuminate as shown.
4. Stir the detergent in the tank for 15 seconds to ensure that it is at consistent thermal uniformity.
5. After waiting two minutes the temperature can be measured to check calibration temperature. Use the UP/DOWN
button to change the actual temperature to the measured temperature.
6. Press the ON/STANDBY button to end the calibration process.
The CENTI is equipped with a drain valve located on the
side of the unit. See Figure 5. Drain Valve. (If you stand
in front of the CENTI the drain valve will be located on the
left side of the unit.)
• The drain should always be installed using Teon sealing
tape. Hand tighten the valve and nish with an adjustable
or 21mm wrench.
• Do NOT overtighten the valve as it may cause damage
to the ultrasonic tank.
• Hand tighten the white plastic hose adaptor into the end
of the drain valve. (See arrow leftt)
• Slide the drain tube over the ridged hose adaptor end.

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2. GENERAL CARE AND MAINTENANCE
Drain Valve Assembly Overview
• Prior to lling the CENTI the unit should be powered off and the plug should be removed from the cord receptacle.
Located on the back of the unit as shown right.
• Close the drain valve by turning it clock-wise 90 degrees until it is perpendicular to the valve body.
• The CENTI is ready to be lled.
2.2.1 Filling the Tank
2.2 Filling or Draining the CENTI
Figure 6. Drain Valve Assembly
Figure 7. Power Cord Receptacle
CAUTION
Only use POSTPROCESS detergents in the CENTI. Using any other detergents may damage the CENTI and void your
warranty.

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2. GENERAL CARE AND MAINTENANCE
Figure 8. Fluid Level Indicator
• Prior to draining the CENTI the unit should be powered off and the plug should be removed from the cord
receptacle as shown in Figure 7. Power Cord Receptacle.
• Make sure the drain tube is placed into a proper storage receptacle for the used detergent.
• Open the drain valve by turning it counter-clockwise 90 degrees until the valve is parallel to the valve body. The
unit will now drain.
• Properly dispose of all detergents according to local disposal guidelines.
First, drain the tank following the steps outlined in Section 2.2.2 - Draining the Tank.
Anytime the CENTI tank is emptied, operators should do a close visual inspection of the tank to remove any
contaminants or debris. To avoid scratching or damaging the tank use water and a non-abrasive cloth to wipe
down the interior of the unit.
• It is recommended to check any baskets or trays that are being used during the support removal process to
ensure they are free from contaminants also. Any baskets or other equipment can be cleaned using water and a
soft cloth.
It is important for the CENTI to always have the
proper amount of detergent in the tank to ensure safe
and efcient operation. There is a uid level indicator
on the inside of the tank. See Figure 8. Fluid Level
Indicator
• When removing parts from the CENTI use care to
limit the amount of detergent lost during the removal.
• When heavy or bulky parts are removed from the
tank excessive detergent may be lost. Always monitor
detergent levels and rell the tank as needed. Keep
in mind that when large amounts of detergent are
added to the tank, a Degas cycle may be necessary.
See Section 1.4.1. Degas Procedures
2.2.2 Draining the Tank
2.3 Cleaning the Tank
2.4 Maintaining Detergent Levels
CAUTION
Never immerse the CENTI in water as the electronics will be damaged. ALWAYS turn the unit off prior to cleaning,
lling or draining and be sure to remove the plug from the receptacle and from the power source.

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2. GENERAL CARE AND MAINTENANCE
3. TROUBLESHOOTING
• Care should always be used to avoid exceeding the CENTI tank capacity or overloading the unit.
• Always use a tray or basket to hold the parts being cleaned.
• Allow at least one inch (1”) of space between the bottom of the tank and the tray allowing for adequate cavitation.
• Remove the tray from the detergent carefully to avoid spilling excess detergent.
Please review Section 1.1 – Connecting Power to the CENTI of this QuickStart Guide for an explanation of
ensuring that the unit is connected to power and turned on.
• If the unit is connected to power and still not operating it is possible that the ON/STANDBY button is not
functioning or that there is a blown fuse. Contact POSTPROCESS support for further information.
The picture to the left depicts the CENTI with the cover
on the tank.
• Using the cover allows the tank to reach the desired
temperature more quickly.
• The cover reduces the amount of detergent that is lost
due to evaporation.
• The red callout in the picture is illustrating the cover
vents.
2.5 Exceeding Tank Capacity
3.1 The CENTI will not start
2.6 Covering the Tank
CAUTION
CAUTION
If a part is resting on the bottom of the tank it will not be cleaned properly and the CENTI could be damaged.
AVOID obstructing the cover vents as it may cause the CENTI to overheat. Never place any weight on the cover
as it may become damaged or misshapen. Avoid storing any objects on or above the CENTI as falling objects
will damage the cover and may damage the CENTI.
3.2 The CENTI is on but the detergent is not heating properly
Please review Section 1.3.2 – Setting the Target Temperature to ensure the tank temperature is set properly.
• If the temperature is set properly, perform a tank temperature calibration. See Section 1.6 – Tank Temperature
Calibration.
• If still unresolved contact POSTPROCESS support for further information.

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3. TROUBLESHOOTING
4. POINT OF CONTACT
3.3 The tank will not drain when the valve is open
3.4 Error Code (Err) is displayed
3.5 The CENTI is operating but the display is blank
3.6 Unit shuts itself down and an Alarm indicator is on the display
When the valve is open and the tank is not draining is an indication that the drain may be plugged with debris
from the support removal process.
• Carefully remove all of the detergent from the tank by transferring it out with a spare container. Operators
MUST wear nitrile hand gloves to avoid allowing detergent to touch bare skin.
• Once emptied, visually check the drain area for contaminant buildup and remove if necessary.
• Remove drain valve assembly. Refer to Section 2.1 – Drain Valve Installation for information.
• Clean and rinse all valve assembly parts and remove any debris.
• Reassemble the drain valve assembly.
• If still clogged, contact POSTPROCESS support for further information.
The Error Code showing up on the display indicates that there are CENTI sensor components malfunctioning.
Contact POSTPROCESS support for further information.
A blank display while the CENTI is operational indicates that the main control board has malfunctioned. Please
contact POSTPROCESS support for further information.
If the CENTI shuts down and an Alarm indicator shows up on a blank display, the CENTI has reached an over-
heating condition. Turn the unit off completely and allow it to cool down. After 15 minutes restart the CENTI.
The Alarm Bell is an indicator of an abnormal operating condition. The CENTI should not be used if this icon is
displayed on the screen. Contact POSTPROCESS support for further instructions if this icon is displayed.
For Questions and Support for the CENTI, please contact PostProcess Technologies:
2495 Main Street, Suite 615
Buffalo, NY 14214 USA
[phone]
suppor[email protected]

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5. REVISION HISTORY
Revision History
List of Changes Approved By Approval DateWritten By
A
B
C
REV
Marketing
(ML)
Marketing
(ML)
Tech Writer
(BG)
Project Eng (BS)
Eng Mgr (MF)
Project Eng (BS)
Eng Mgr (MF)
Project Eng (BS)
Eng Mgr (MF)
6/27/2017
2/21/2018
6/26/2018
Original Release
Brand Update, Add Ventilation
Requirements
Rendering updates, add Warning for
exceeding Temperature