Apf239664 en
Apf239664 en
CD 150+
Instruction book
Atlas Copco
CD 150+
APF239664
Instruction book
Original instructions
COPYRIGHT NOTICE
Any unauthorized use or copying of the contents or any part thereof is prohibited.
This applies in particular to trademarks, model denominations, part numbers and
drawings.
This instruction book is valid for CE as well as non-CE labelled machines. It meets the
requirements for instructions specified by the applicable European directives as
identified in the Declaration of Conformity.
2019 - 09
www.atlascopco.com
Instruction book
Table of contents
1 Safety precautions..........................................................................................................4
2 General description........................................................................................................ 9
2.2 OPERATION.....................................................................................................................................11
3 Electrical diagram.........................................................................................................14
4 Controller.......................................................................................................................15
5 Installation.....................................................................................................................44
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6 Operating instructions................................................................................................. 48
7 Maintenance.................................................................................................................. 51
7.1 MAINTENANCE................................................................................................................................. 51
8 Problem solving............................................................................................................53
9 Technical data...............................................................................................................54
13 Documentation..............................................................................................................58
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1 Safety precautions
Explanation
Danger to life
Warning
Important note
General precautions
All responsibility for any damage or injury resulting from neglecting these precautions, or
non-observance of the normal caution and care required for installation, operation,
maintenance and repair, even if not expressly stated, will be disclaimed by the
manufacturer.
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Also consult following safety precautions: Safety precautions during operation and Safety
precautions during maintenance or repair.
These precautions apply to machinery processing or consuming air or inert gas. Processing
of any other gas requires additional safety precautions typical to the application which are
not included herein.
Some precautions are general and cover several machine types and equipment; hence
some statements may not apply to your machine.
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Also consult following safety precautions: Safety precautions during installation and Safety
precautions during maintenance or repair.
These precautions apply to machinery processing or consuming air or inert gas. Processing
of any other gas requires additional safety precautions typical to the application which are
not included herein.
Some precautions are general and cover several machine types and equipment; hence
some statements may not apply to your machine.
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Also consult following safety precautions: Safety precautions during installation and Safety
precautions during operation.
These precautions apply to machinery processing or consuming air or inert gas. Processing
of any other gas requires additional safety precautions typical to the application which are
not included herein.
Some precautions are general and cover several machine types and equipment; hence
some statements may not apply to your machine.
Dismantling
Once the end of life of the machine is reached, please follow next steps:
1. Stop the machine.
2. Check all safety precautions mentioned in the previous chapters to secure safe handling
(e.g. LOTO, cool-down, depressurize, discharge, ...).
3. Separate the harmful from the safe components (e.g. drain oil from oil containing parts).
4. Refer to the disposal topic mentioned below.
The equipment is labelled in accordance with the European Directive 2012/19/EU with the
crossed-out wheelie bin symbol.
At the end of life-time of the electric and electronic equipment (EEE) it must be taken to separate
collection.
For more information check with your local waste authority, customer center or distributor.
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2 General description
Introduction
The air dryers described in this book are heatless adsorption dryers, built to remove moisture
from compressed air for industrial purposes. The standard version is intended to reach a
pressure dew point (PDP) of -40 ˚C (-40 ˚F). There is also a version available for a pressure dew
point of -70˚C (-94 ˚F).
All dryers are designed for indoor use.
The dryers described in this book are equipped with a Pressure Dew Point (PDP) sensor for
control of the purge air flow.
Main parts
A general overview of the main parts of the dryer units is given in below images:
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Control panel
The dryer is controlled by an Elektronikon® controller. Consult the dedicated chapter for a
complete description of the controller functions.
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2.2 Operation
The construction of the air dryer is simple, reliable and easy to service. The dryer has two towers,
containing the adsorbing material or desiccant. The desiccant is a very porous grain material
which can adsorb large amounts of water vapor.
The operation cycle of the dryer is repetitive and is controlled by the Elektronikon regulator and a
PDP (Pressure Dew Point) sensor.
The compressed air entering the dryer is led to one of the towers by means of the inlet valves
(IV), which are controlled by a pneumatic actuator (PA). As the air flows upwards through the
tower, the desiccant adsorbs the water vapor and the compressed air is dried. The dry air leaves
the dryer via the outlet, connected to the top of the tower.
While the desiccant in the first tower dries the compressed air, the desiccant in the second tower
is being regenerated. Regeneration of the desiccant is achieved by means of purge air from the
drying tower: a small portion of the dried air passes a nozzle (N), expands to atmospheric
pressure and flows downwards through the other tower, regenerating the desiccant. The
regenerating air is released via the corresponding exhaust valve (PV) and the silencer (S).
A second small portion of the dried air flows via the control air valve (100), a small air filter (101)
and the pressure regulator (PR - only used on 16 bar (232 psi) versions) to the PDP sensor and
to the solenoid valves (SV). The air leaving the solenoid valves (when energized) is used to
control the pneumatic actuator (PA) and the pneumatic valves (PV). The solenoid valves are
controlled by the controller.
The PDP sensor constantly measures the pressure dew point of the air leaving the drying tower.
As long as the PDP temperature is below the set point (-40 °C or -70 °C), the drying tower will
keep on drying, until the PDP temperature exceeds the set point. On that moment the
regenerated tower will start drying the compressed air and the other tower will start regenerating.
As long as the PDP temperature is below the set point, regeneration of the non-drying tower is
stopped after the pre-set time interval of the timer has elapsed. As a result, reduction of purge air
is achieved.
Flow diagram
The figure below shows the pneumatic diagram of the dryer.
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3 Electrical diagram
The complete electrical diagram is available inside the electric cabinet.
Some generally used symbols are given in below table:
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4 Controller
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Warning
Voltage-free outputs may only be used to control or monitor functional systems. They
should NOT be used to control, switch or interrupt safety related circuits.
Stop the compressor and switch off the supply before connecting external equipment. Check
the Safety precautions.
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Status icons
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Remote start/stop
Network control
Automatic restart after voltage Automatic restart after voltage failure is active
failure
Shutdown
Warning
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Input icons
Icon Description
Pressure
Temperature
Digital input
Special protection
System icons
Icon Description
Failure expansion module
Network problem
General alarm
Regulation
General settings
Menu icons
Icon Description
Inputs
Outputs
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Icon Description
Counters
Test
Settings
Service
Set point
Info
Week timer
Navigation arrows
Icon Description
Up
Down
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Control panel
Function
The main screen shows the status of the dryer and is the gateway to all functionality implemented
in the controller.
The main screen is shown automatically when the power is switched on. The display switches to
sleep mode when no keys are pushed for a programmable time.
Five different main screens can be chosen:
1. Two value lines
2. Four value lines
3. Chart (High resolution)
4. Chart (Medium resolution)
5. Chart (Low resolution)
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Text on figures
• Section A displays information regarding the dryer operation (e.g. outlet pressure,
temperature at dryer outlet).
• Section B displays Status icons. Following icon types are shown in this field:
• Fixed icons
These icons are always shown in the main screen and cannot be selected by the cursor
(e.g. dryer stopped or running)
• Shortcut icons
These icons are always shown in the main screen. If the icon is selected and the Enter
key is pushed, the screen will jump to the corresponding menu (e.g. if the icon for Motor
stopped or Running Loaded is selected, the screen will jump directly to the regulation
menu after pressing the Enter key).
• Control mode icons
These icons are always shown in the main screen. If the icon is selected and the Enter
key is pushed, the screen jumps to the control mode menu. Following control modes
are available:
Local control
Remote control
Network control
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• Optional icons
These icons are only shown if their corresponding function is activated (e.g. week timer,
automatic restart after voltage failure, etc.)
• Pop up icons
These icons pop up if an abnormal condition occurs (warnings, shutdowns, service,...)
To show more information about displayed icons, select the icon using the scroll keys and
push the Enter key.
• Section C is called the Status bar
This bar shows the text that corresponds to the selected icon.
• Section D shows the Action buttons. These buttons are used:
• to call-up or program settings
• to reset a shutdown, service message or emergency stop
• to have access to all data collected by the controller
The function of the buttons depends on the displayed menu. The most common functions
are:
Designation Function
Menu To go to the menu
Modify To modify programmable settings
Reset To reset a timer or message
To enable an action button, highlight this button by using the Scroll keys and push the Enter
key.
To go back to the previous menu, push the Cancel / Escape key.
Chart views
When the Chart (High Resolution) display is selected, a chart with an X-axis covering 4 minutes
is displayed. The value displayed on the Y-axis depends on the selection made in the input
screen. Each chart dot represents 1 second.
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When the Chart (Medium Resolution) display is selected, a chart with an X-axis covering 4 hours
is displayed. The value displayed on the Y-axis depends on the selection made in the input
screen. Each chart dot represents a 1 minute average value.
When the Chart (Low Resolution) display is selected, a chart with an X-axis covering 10 days is
displayed. The value displayed on the Y-axis depends on the selection made in the input screen.
Each chart dot represents a 1 hour average value.
Main menu
Press the Enter key to go to the main menu screen that is shown below.
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Menu structure
Please find the tree structure on the 2 top levels below. The items are mentioned as they appear
on the screen from top to bottom and left to right. If questions regarding lower levels appear,
please consult your local Customer Center.
SERVICE
Topic Description
Overview Displays an overview of the running service plans.
Service Plan Displays configuration of the service plans.
Next Service Displays the next service task.
History Displays a log of all automatic shutdowns that have appeared in the past.
PROTECTIONS
Topic Description
Emergency Stop Displays a list of main protections.
A: High Working Pressure Displays the protection of the high working pressure of vessel A.
B: High Working Pressure Displays the protection of the high working pressure of vessel B.
Low Dryer Inlet Temperature Displays the low inlet protection temperature of the dryer.
Displays the protection of the high regeneration temperature of
A: High Regeneration Temperature vessel A.
Displays the protection of the high regeneration temperature of
B: High Regeneration Temperature vessel B.
High Dryer Inlet Temperature Displays the high inlet protection temperature of the dryer.
Expansion Module Communication Displays the protection of the expansion module communication.
High Dewpoint Displays the protection of the high dewpoint temperature.
Low Inlet Pressure Displays the protection of the low inlet pressure.
Failed to Blow Off Vessel A Displays the fail to blow off vessel A.
Failed to Blow Off Vessel B Displays the fail to blow off vessel B.
Failed to Pressurize Displays the fail to pressurize.
WEEK TIMER
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Topic Description
Displays 4 programmable week action schemes.
Week Action Schemes Each week action scheme contains 7 programmable days and these days can
contain a number of successive events on selected time slots.
Contains 10 weeks and each week can be selected as 1 of the 4 week action
Week Cycle
schemes.
Status Displays the status (On/Off) of the week timer functionality.
Remaining Running Allows to set a timer to keep the compressor running for 1-240 minutes.
Time
INFORMATION
Topic Description
Refers to the company website where more detailed info on the product can be
www.xxxxxxxx.com found.
More The More button displays the software versions, addresses, licenses, ...
TEST
Topic Description
Output Test Allows a functionality check of the output.
Depressurize Vessels Allows a functionality check of the depressurization of the vessels.
COUNTERS
Topic Description
Running Hours Dryers Displays the number of hours the dryer has been running.
Loaded Hours Dryers Displays the number of hours the dryer has been running in loaded mode.
Standby Time Displays the number of hours the dryer is in stand by.
Actual State time Displays the number of hours the dryer is in current state.
Programmed State Time Displays the number of hours the dryer will be in current state.
Actual Half Cycle Time Displays the number of hours the dryer is in half cycle state.
Programmed Half Cycle
Time Displays the number of hours the dryer will be in half cycle state.
Regeneration Cycles
Vessel A Displays the number of regeneration cycles of vessel A.
Regeneration Cycles
Vessel B Displays the number of regeneration cycles of vessel B.
Energy Saving PDP
Sensor Displays the energy saving percentage with the PDP sensor.
Module Hours Displays the number of hours the module has been powered.
REGULATION
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Topic Description
PDP Extended Cycle Displays if the PDP extendend cycle is activated or not.
PDP Switching
Temperature Displays the PDP switching temperature
PDP Alarm Offset Displays the PDP alarm offset
INPUTS
Topic Description
Pressure Vessel A Displays the pressure of vessel A.
Pressure Vessel B Displays the pressure of vessel B.
Inlet Dryer Displays the dryer inlet temperature.
Dryer Pressure Dewpoint Displays the dryer pressure dewpoint temperature.
Emergency Stop Displays the emergency stop status.
Remote Start/Stop Displays the remote start/stop status.
OUTPUTS
Topic Description
Dryer Motor Indicates that the dryer is running.
Low Pressure Alarm Displays status of low pressure alarm.
General Shutdown Displays status of general shutdown.
General warning Displays status of general warning.
Pressure Relief Valve A Displays if pressure relief valve A is present.
Pressure Relief Valve B Displays if pressure relief valve B is present.
EVENT HISTORY
Topic Description
Displays a log file of all shutdowns and shows the status of the type, counters,
-
inputs and outputs at the moment a shutdown appeared
SETTINGS
Topic Description
Network Displays the CAN and ethernet configuration
General Displays settings concerning time, date, unit and display time-out
Regulation Displays settings concerning the compressed air flow regulation
Remote Control Displays setting concerning the remote control
Automatic Restart After Voltage Failure can only be enabled by a service
Automatic Restart
technician.
Access Key Displays the controller access level that can be modified with password input
Main Chart Displays the input and the range of the main chart
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Controller
Function
• To depressurize the vessels and to test the output contacts.
• The vessels can only be depressurized when the dryer is stopped (off state).
• The test procedure will be stopped as soon as another menu is selected on the
regulator.
Procedure
Starting from the Main screen (see Main screen):
• Move the cursor to the Menu action button and press the enter key (2); following screen
appears:
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• Using the scroll keys (1), move the cursor to the test icon (see above, section Menu icon).
• Press the enter key (2); following screen appears:
Text on figure
(1) Test
(2) Depressurize vessels
• A red selection bar is covering the item Depressurize vessels ; press the Enter key to
depressurize the vessels.
Controller
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Function
To display and modify a number of settings (e.g. Time, Date, Date format, Language, units ...).
Procedure
Starting from the Main screen (see Main screen),
• Move the cursor to the Menu action button and press the Enter key. Following screen
appears:
• Using the Scroll keys, move the cursor to the Settings icon (see above, section menu icon).
• Press the Enter key. Following screen appears:
Icon Function
Network settings
General settings
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Icon Function
Regulation settings
Access key
User password
• Move the cursor to the icon of the function to be modified and press the Enter key.
Text on figure
(1) Network
(2) Ethernet
(3) CAN
• A red selection bar is covering the first item (Ethernet). Use the ↓ key of the Scroll keys to
select the setting to be modified and press the Enter key. Following screen appears:
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Text on figure
(1) Ethernet
(2) IP Address
(3) Subnet mask
(4) Gateway IP
(5) Modify
Text on figure
(1) CAN
(2) CAN Address
(3) Communication profile
(4) Modify
• Press the Enter button; a red selection bar is covering the first item (Ethernet ).
• Using the Scroll keys, move the cursor to the setting to be modified (e.g. Ethernet ) and
press the Enter button (2).
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• A pop-up screen appears. Use the ↑ or ↓ key to select the required parameter and press the
Enter key to confirm.
General settings
• Select the General settings icon as described above and press the Enter button (2).
Following screen appears:
Text on figure
(1) General
(2) Language in use
(3) Time
(4) Date
(5) Date format
• The screen shows the first items of a list of all settings. Use the scroll button to see the other
items in the list.
• Press the Enter button (2); a red selection bar is covering the first item (Language in use).
Use the ↓ key of the Scroll keys to select the setting to be modified and press the Enter key.
• A pop-up screen appears. Use the ↑ or ↓ key to select the required parameter and press the
Enter key to confirm.
Regulation settings
• Select the Regulation icon as described above and press the Enter button (2). Following
screen appears:
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Text on figure
(1) Regulation
(2) PDP extended cycle
(3) Activated
(4) PDP switching temperature
(5) PDP Alarm offset
(6) Heatless backup mode (see note *)
(7) Not activated
(8) Modify
*: not applicable.
• The screen shows the list of all settings.
• Press the Enter button (2); a red selection bar is covering the first item (PDP extended
cycle).
Use the ↓ key of the Scroll keys to select the setting to be modified and press the Enter key.
• A pop-up screen appears. Use the ↑ or ↓ key to select the required parameter and press the
Enter key to confirm.
Regulation settings:
• PDP extended cycle: the cycle is lengthened by putting the vessel in waiting mode
(standby) if PDP is low enough after regeneration and cooling. The extended cycle should
only be activated when a working PDP sensor is present.
• PDP switching temperature: the PDP should not increase to this setting before the vessels
are switched when the dryer is in standby mode.
• PDP Alarm offset: the PDP alarm is active when: PDP > PDP_switching_temperature +
PDP_alarm_offset. In that way, the alarm threshold can be set independently of the
switching threshold.
Automatic restart
• Select the Automatic restart settings icon as described above and press the Enter button (2).
Following screen appears:
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Text on figure
Access key
Different security levels are programmed in the regulator (e.g. user, service technician, etc). This
menu item is used to change the security level. Scroll to the correct icon using the scroll key.
Press the Enter button. Press the Enter button again to modify the security level. Press the Enter
button again, a pop-up menu appears. Use the scroll keys to enter the password of the new
security level. Press the Enter key to confirm the change.
User password
If the password option is activated, it is impossible for not authorized persons to modify any
setting.
• Using the Scroll keys, move the cursor to the Password icon.
• Press the Enter key.
• Select the Modify button using the Scroll keys and press the Enter key. Next, modify the
password as required.
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Getting started
Make sure you are logged in as administrator.
• Use the internal network card from your computer or a USB to LAN adapter.
• Use a UTP cable (CAT 5e) to connect to the controller (see picture below).
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• Use the check box Internet Protocol version +4 (TCP/IPv4) (1) (see picture). To avoid
conflicts, uncheck other properties if they are checked. After selecting TCP/IPv4, click on the
Properties button (2) to change the settings.
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• Go to Settings (1)
• Go to Network (1)
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• Go to Ethernet (1)
• Switch Off (1) the Ethernet communication to allow editing the settings
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• Wait a few minutes so the LAN network can connect to the controller
All screen shots are indicative. The number of displayed fields depends on the selected
options.
• Open your browser and type the IP address of the controller you want to view in your
browser (in this example http://192.168.100.100). The interface opens:
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• On the left side of the interface, you can find the navigation menu.
If a license for ESi is foreseen, the menu contains 3 buttons.
• Machine: shows all generator settings.
• ES: shows the ESi status (if a license is provided).
• Preferences: allows to change temperature and pressure unit.
Unit settings
All unit settings can be displayed or hidden. Put a check mark in front of each point of interest
and it will be displayed. Only the machine status is fixed and can not be removed from the main
screen.
Analog inputs
Lists all current analog input values. The measurement units can be changed in the preference
button from the navigation menu.
Counters
Lists all current counter values from controller and unit.
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Info status
Machine status is always shown on the web interface.
Digital inputs
Lists all digital inputs and their status.
Digital outputs
Lists all digital outputs and their status.
Special protections
Lists all special protections of the unit.
Service plan
Displays all levels of the service plan and their status. This screen shot underneath only shows
the running hours. It is also possible to show the current status of the service interval.
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Description
The regulating and safety devices are factory-adjusted to obtain optimum performance of the
dryer. No adjustments are required.
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5 Installation
CD 150+
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Piping
Make sure that all pipes, filters, valves, etc. are clean and that they are installed correctly
with or without bypass system.
Make sure that the piping is installed stress-free. For more information concerning air nets,
cooling systems etc. refer to the compressor installation manual.
To ensure correct operation of the dryer, it has to be fitted properly into the compressed air
circuit, consisting of the compressor, the dryer and the application.
COMP Compressor
AR Air receiver
D Dryer
EIV External inlet valve (not shown)
To cut off the air supply towards the dryer
EOV External outlet valve (not shown)
To cut off the air supply towards the air consumer
BV Bypass valves (not shown on the drawings)
Together with the external inlet valve and the external outlet valve, the bypass
valves allow the dryer and the filters to be serviced while non-dried air flows through
the bypass system.
1 The drain pipes to the drain collector must not dip into the water. For draining of
pure condensate water, install an oil/water separator.
2 Minimum free area to be reserved for the dryer installation
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3 Compressed air prefilter for general purpose filtration, particle removal down to 1
micron, maximum oil carry-over 0.5 ppm
This filter provides extra protection of the dryer and extends the lifetime of the high
efficiency filter cartridge (4).
4 High efficiency filter, particle removal down to 0.01 micron, maximum oil carry-over
0.01 ppm
To remove remaining impurities.
5 Dust filter, particle removal down to 1 micron
To remove dust particles originating from the desiccant.
6 Water separator (optional)
To prevent free water from entering the dryer.
General recommendations
Keep the following in mind when installing the dryer:
• Place the dryer at a location where the temperature never exceeds the limits; see Technical
Data.
• The dryer does not require extra ventilation.
• Fix the dryer as level as possible to the floor. Make sure the fixating bolts are tightened
firmly and that the floor is suitable for taking the weight of the dryer.
• Provide enough space around the unit to install and service the filter elements. A minimum
free space of 800 to 1000 mm (approx. 2.6 to 3.2 ft) is recommended - see the installation
proposal drawings.
Provide sufficient space under the filter elements to be able to replace the filter cartridges
without having to disassemble the piping.
• Always install a high efficiency filter (4) at the inlet of the dryer. A prefilter (3) is
recommended to extend the lifetime of the high efficiency filter. The drain pipes (1) of the
water separator and the filters must not dip into the water. Use a dust filter (5) at the outlet of
the dryer. Should oil vapor and odors be undesirable, a carbon filter can be installed
downstream the dust filter.
• If the compressor has no built-in water separator, a water separator (WSD) has to be
installed before the dryer in order to prevent free water from entering the dryer, as free water
can damage the desiccant. If the condensate contains oil, install an oil/water separator for
draining of pure condensate water.
• It is recommended to install bypass pipes with ball valves over the filters in order to isolate
the filters during service operations without disturbing the compressed air delivery.
• It is required to install pressure relief valves on each vessel of the dryer when ball valves are
installed at the inlet and the outlet of the dryer to isolate the dryer from the air net.
Never overload the dryer as a too high air speed will damage the desiccant. It may be
recommended to install the air dryer upstream of the air receiver to prevent overload (e.g.
after extending the dry air circuit). Consult your supplier if in doubt. See also section
Operating instructions for the correct operation procedure.
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The electrical wiring must comply with the local regulations. The air dryer must be earthed
and protected by fuses against short-circuiting.
Connect the supply voltage to terminals 1X0 (L1 - L2) and 1X3 (earth). Install a power switch and
fuses in the supply line.
Reference Description
(1) Customer's installation
(2) Door
(3) Cubicle
Before switching on the main power supply, check the voltage requirements in the
technical specifications or on the dryer’s data plate.
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6 Operating instructions
Safety
Initial start-up
To start up the dryer for the first time or after a long period of standstill, proceed as follows:
1. Open the bypass valves (if installed) of the dryer.
2. Close the air supply towards the PDP sensor (dryers with PDP sensor).
3. Close off the air supply from the compressor towards the dryer by closing the external inlet
valve (if installed).
4. Close the outlet valve (if installed).
5. Remove the silencers to prevent the silencers from getting clogged by the desiccant and
wear a dust mask, safety glasses and ear protection. (This is only required at initial start-up
or after the desiccant was replaced).
6. Start the compressor and wait for pressure.
7. Slowly open the inlet valve.
8. Check the connections of the dryer for air leaks and remedy if necessary.
9. Switch the dryer on by pushing the Start button (14) on the Elektronikon controller.
10. Let the dryer operate for several hours with the external outlet valve closed.
11. In case the silencers were removed, refit the silencers.
12. Gradually open the external outlet valve.
13. If applicable, close the bypass valves of the dryer.
14. Open the air supply towards the PDP sensor (dryers with PDP sensor).
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If the application allows air that is not completely dry, the valve towards the dry air
consumer may be opened even before the optimal Pressure Dew Point (PDP) is
reached. In this case however, it will take more time for the desiccant to dry completely.
At initial start-up, and specially when the dryer is loaded from the beginning, it can take
a long time before the dew point is reached.
For a dew point of -70 ˚C (-94 ˚F), it can take up to more than 10 days before this value
is reached.
It is therefore recommended to operate the dryer for a number of days with the outlet
valve closed.
Normal start
If the dryer has not been used for more than 3 months, refer to section Initial start-up. In all other
cases, proceed as follows:
1. Cut off the air supply from the compressor towards the dryer by closing the external inlet
valve.
2. Close the air supply towards the PDP sensor (dryers with PDP sensor).
3. Close the external outlet valve (if installed) between the dryer and the dry air consumer.
4. Start the compressor and slowly open the external inlet valve.
5. Switch the dryer on by pushing the Start button (14) on the Elektronikon controller.
6. Gradually open the air outlet valve.
7. If applicable, close the bypass valves of the dryer.
8. Open the air supply towards the PDP sensor (dryers with PDP sensor).
Close the external inlet valve in case the compressor needs to be restarted. The high
air speed in the start-up phase of the compressor may damage the desiccant.
To prevent this, a sonic nozzle (available as option) can be installed
Sonic nozzles
During operation
At regular intervals, check the status of the LED’s on the control panel. Refer to section Problem
solving.
If the PDP Warning LED is lit and the application allows only dry air, shut down the application
and let the dryer regenerate first. Check the PDP temperature regularly. If the PDP temperature
is too high, let the dryer regenerate by closing the outlet valve.
Stopping
To stop the dryer, proceed as follows:
1. If installed and if necessary, open the bypass valves of the dryer so that the application will
still receive compressed air.
2. Close the external inlet valve between the compressor and the dryer and the external outlet
valve between the dryer and the dry air consumer.
3. Let the dryer operate for a period without consumption, to depressurize the vessels.
4. Stop the dryer by pushing the Stop button (13) on the Elektronikon controller.
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If the dryer is stopped for a longer period, keep the external inlet and outlet valve
closed to avoid moisture from entering the dryer.
Under no circumstances must compressed air be allowed to flow through the dryer
when the electrical power is switched off (regeneration of the desiccant material will no
longer be possible).
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7 Maintenance
7.1 Maintenance
• Stop the dryer by pushing the Stop button (13) on the Elektronikon controller.
• Disconnect all pressure sources and vent the internal pressure of the system before
dismantling any pressurized component.
• Use Original Parts only. Consult the Spare Parts List for part numbers. For preventive
maintenance, dedicated service kits are available.
• Check for correct operation after maintenance.
Filters and valves installed between the compressor, the dryer and the air consumer
may need other maintenance activities than those mentioned below (e.g. draining the
filters and replacing the filter elements). Refer to the appropriate manual for more
information.
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8 Problem solving
Overview
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9 Technical data
CD 150+
Max. volume flow at dryer inlet l/s 120
Total amount of desiccant kg 170
Recommended filter size UD/DDp 180+/170+
Recommended filter size DD/PD/DDp 170+
Mass kg 415
Time of half a cycle s 180
Regeneration time s 145
Installed power W 63
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Instructions
Description
1 The dryers can contain pressurized air. This can be potentially dangerous if the equipment is
misused.
2 The dryer vessels must only be used as a compressed air vessel and must be operated within
the limits specified on the data plate.
3 No alterations must be made to the vessels by welding, drilling or other mechanical methods
without the written permission of the manufacturer.
4 The design pressure and temperature of this pressure bearing part must be clearly indicated
on the data plate.
5 If installed, the safety valve must correspond with pressure surges of 1.1 times the maximum
allowable operating pressure. This should guarantee that the pressure will not permanently
exceed the maximum allowable operating pressure of the vessel.
6 Original bolts have to be used after opening for inspection. The maximum torque has to be
taken into consideration (see table below).
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Guidelines
On the Declaration of Conformity / Declaration by the Manufacturer, the harmonized and/or other
standards that have been used for the design are shown and/or referred to.
The Declaration of Conformity / Declaration by the Manufacturer is part of the documentation that
is supplied with this air dryer.
Local legal requirements and/or use outside the limits and/or conditions as specified by the
Manufacturer may require other inspection periods.
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Table B
Type Min. design Max. design Number of Min. wall Min. wall
temperature temperature cycles (1) thickness shell thickness head
(mm) (mm)
CD 150+ -10 °C 80 °C 1050000 3.90 3.85
(1): The number of cycles refers to the number of cycles from 0 bar(e) to maximum pressure.
(2): The minimum wall thickness refers to the minimum required thickness according design
calculations.
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13 Documentation
Declaration of conformity
Typical example of a Declaration of Conformity document
(1): Manufacturer
(2): Applicable directives
(3): Standards used
(4): Technical file holder
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We stand by our responsibilities towards our customers, towards the environment and
the people around us.
We make performance stand the test of time.
This is what we call - Sustainable Productivity.
Atlas Copco Airpower NV. All rights reserved. Designs and specifications are subject to change without notice or obligation.