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PNEUMATECH
PH 230 HE, PH 320 HE, PH 390 HE, PH 530 HE, PH 635 HE
Instruction book
PNEUMATECH
PH 230 HE, PH 320 HE, PH 390 HE, PH 530 HE,
PH 635 HE
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.
2016 - 08
No. 2920 1891 00
www.pneumatech.com
2
Instruction book
Table of contents
AFETY PRECAUTIONS DURING INSTALLATION
........................................................................................... 5
AFETY PRECAUTIONS DURING OPERATION
.............................................................................................. 6
AFETY PRECAUTIONS DURING MAINTENANCE OR REPAIR
........................................................................... 6
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Instruction book
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4
Instruction book
1 Safety precautions
1.1
Safety icons
Explanation
Danger to life
Warning
Important note
1.2
Safety precautions, general
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.
1. The dryers are designed for normal indoor use.
2. The operator must employ safe working practices and observe all related work safety requirements and regulations.
3. If any of the following statements does not comply with the applicable legislation, the stricter of the two shall apply.
4. Installation, operation, maintenance and repair work must only be performed by authorized, trained, specialized personnel.
5. The dryer is not considered capable of producing air of breathing quality. To obtain air of breathing quality, the compressed air must be adequately purified according to the applicable legislation and standards.
6. Before any maintenance, repair work, adjustment or any other non-routine checks, stop the dryer, press the emergency stop button, switch off the voltage and depressurize the dryer. In addition, the power isolating switch must be opened and locked. For plug versions, remove the plug from the wall socket and secure it.
7. Never play with compressed air. Do not apply the air to your skin or direct an air stream at people.
Never use the air to clean dirt from your clothes. When using the air to clean equipment, do so with extreme caution and wear eye protection.
8. The owner is responsible for maintaining the dryer in safe operating condition. Parts and accessories shall be replaced if unsuitable for safe operation.
9. It is not allowed to walk or stand on the dryer or its components.
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Instruction book
1.3
Safety precautions during installation
Precautions during installation
1. The dryer must only be lifted using suitable equipment and in accordance with the applicable safety regulations. Loose or pivoting parts must be securely fastened before lifting. It is strictly forbidden to dwell or stay in the risk zone under a lifted load. Lifting acceleration and deceleration must be kept within safe limits. Wear a safety helmet when working in the area of overhead or lifting equipment.
2. Place the dryer where the ambient air is as cool and clean as possible. If necessary, install a suction duct. Never obstruct the air inlet. Care must be taken to minimize the entry of moisture at the inlet air.
3. Any blanking flanges, plugs, caps or desiccant bags must be removed before connecting the pipes.
4. Air hoses must be of correct size and suitable for the working pressure. Never use frayed, damaged or worn hoses. Distribution pipes and connections must be of the correct size and suitable for the working pressure.
5. The aspirated air must be free of flammable fumes, vapors and particles, e.g. paint solvents, that can lead to internal fire or explosion.
6. Ensure that all piping is free to expand under heat and that it is not in contact with or close to flammable materials.
7. No external force may be exerted on the air outlet valve. The connected pipe must be free of strain.
8. If remote control is installed, the machine must bear a clear sign stating "Danger: This machine is remotely controlled and may start without warning".
The operator has to make sure that the machine is stopped and that the isolating switch is open and locked before any maintenance or repair. As a further safeguard, persons switching on remotely controlled machines shall take adequate precautions to ensure that there is no one checking or working on the machine. To this end, a suitable notice shall be affixed to the starting equipment.
9. The electrical connections must correspond to the applicable codes. The machines must be earthed and protected against short circuits by fuses in all phases. A lockable power isolating switch must be installed near the equipment.
10. On machines with automatic start-stop system or if the automatic restart function after voltage failure is activated, a sign stating "This machine may start without warning" must be affixed near the instrument panel.
11. Never remove or tamper with the safety devices, guards or insulation fitted on the machine. Every pressure vessel or auxiliary installed outside the machine to contain air above atmospheric pressure must be protected by a pressure-relieving device or devices as required.
12. Piping or other parts with a temperature in excess of 80˚C (176˚F) and which may be accidentally touched by personnel during normal operation must be guarded or insulated. Other high-temperature piping must be clearly marked.
13. If no safety valve is present in the air net close to the desiccant dryer (e.g. safety valve of compressor), full flow safety valves must be installed on the dryer vessels.
14. If the maximum pressure of the compressor is higher than the design pressure of the dryer, a full flow safety valve must be installed between the compressor and the dryer in order to blow off the excessive pressure in case the safety valve of the dryer should be out of order or blocked.
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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1.4
Safety precautions during operation
Precautions during operation
1. Always be careful when touching any piping or components of the dryer during operation.
2. Use only the correct type and size of hose end fittings and connections. When blowing through a hose or air line, ensure that the open end is held securely. A free end will whip and may cause injury. Make sure that a hose is fully depressurized before disconnecting it.
3. Persons switching on remotely controlled machines shall take adequate precautions to ensure that there is no one checking or working on the machine. To this end, a suitable notice shall be affixed to the remote start equipment.
4. Never operate the machine when there is a possibility of taking in flammable or toxic fumes, vapors or particles.
5. Never operate the machine below or in excess of its limit ratings.
6. People staying in environments or rooms where the sound pressure level reaches or exceeds 90 dB(A) shall wear ear protectors.
7. Periodically check that:
• All guards are in place and securely fastened
• All hoses and/or pipes inside the machine are in good condition, secure and not rubbing
• There are no leaks
• All fasteners are tight
• All electrical leads are secure and in good order
• Safety valves and other pressure relief devices are not obstructed by dirt or paint
• Air outlet valve and air net, i.e. pipes, couplings, manifolds, valves, hoses, etc. are in good condition, free of wear or abuse
8. If warm cooling air from dryers is used in air heating systems, e.g. to warm up a working area, take precautions against air pollution and possible contamination of the breathing air.
9. Do not remove any of, or tamper with, the sound dampening material.
10. Never remove or tamper with the safety devices, guards or insulations fitted on the machine. Every pressure vessel or auxiliary installed outside the machine to contain air above atmospheric pressure shall be protected by a pressure relieving device or devices as required.
11. Yearly inspect the air receiver. Minimum wall thickness as specified in the instruction book must be respected. Local regulations remain applicable if they are more strict.
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.
6
1.5
Safety precautions during maintenance or repair
Precautions during maintenance or repair
1. Always use the correct safety equipment (such as safety glasses, gloves, safety shoes, etc.).
2. Use only the correct tools for maintenance and repair work.
3. Use only genuine spare parts.
4. All maintenance work shall only be undertaken when the machine has cooled down.
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Instruction book
5. A warning sign bearing a legend such as "Work in progress - do not start" shall be attached to the starting equipment.
6. Persons switching on remotely controlled machines shall take adequate precautions to ensure that there is no one checking or working on the machine. To this end, a suitable notice shall be affixed to the remote starting equipment.
7. Close the dryer air outlet valve before connecting or disconnecting a pipe.
8. Before removing any pressurized component, effectively isolate the machine from all sources of pressure and relieve the entire system of pressure.
9. Never use flammable solvents or carbon tetrachloride for cleaning parts. Take safety precautions against toxic vapors of cleaning liquids.
10. Scrupulously observe cleanliness during maintenance and repair. Keep dirt away by covering the parts and exposed openings with a clean cloth, paper or tape.
11. Never weld on, or in any way modify, pressure vessels.
12. Whenever there is an indication or any suspicion that an internal part of a machine is overheated, the machine shall be stopped but no inspection covers shall be opened before sufficient cooling time has elapsed; this to avoid the risk of spontaneous ignition of the oil vapor when air is admitted.
13. Never use a light source with open flame for inspecting the interior of a machine, pressure vessel, etc.
14. Make sure that no tools, loose parts or rags are left in or on the machine.
15. All regulating and safety devices shall be maintained with due care to ensure that they function properly. They may not be put out of action.
16. Before clearing the machine for use after maintenance or overhaul, check that operating pressures, temperatures and time settings are correct. Check that all control and shut-down devices are fitted and that they function correctly.
17. Protect the motor, electrical and regulating components, etc. to prevent moisture from entering them, e.g. when steam-cleaning.
18. Make sure that all sound-damping material and vibration dampers, e.g. damping material on the bodywork, is in good condition. If damaged, replace it by genuine material from the manufacturer to prevent the sound pressure level from increasing.
19. Never use caustic solvents which can damage materials of the air net, e.g. polycarbonate bowls.
20.
The following safety precautions are stressed when handling desiccant:
• Take precautions not to inhale desiccant dust.
• Check that the working area is adequately ventilated; if required, use breathing protection.
• Do not overfill the dryer when replacing desiccant.
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.
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2 General description
2.1
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 ˚F. There is also a version available for a pressure dew point of -100 ˚F.
All dryers are designed for indoor use.
The dryers described in this book are equipped with a smart controller. A Pressure Dew Point (PDP) sensor can be installed with a sales kit.
Main parts
A general overview of the main parts of the dryer units is given in below images:
8
Front view PH 230 HE up to PH 635 HE
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Instruction book
Rear view PH 230 HE up to PH 635 HE
Reference
A
B
IN
OUT
IV
PA
PV
S
NV
PR
P01
Designation
Tower A
Tower B
Dryer inlet
Dryer outlet
Inlet valve
Pneumatic actuator
Pneumatic valve
Silencer
Non-return valve
Reference
1
2
3
SV
N
P1
P2
AF
CA
Pressure regulator (232 psi version) PDP
Pressure sensor P02
Designation
Control panel
Purelogic™ controller
Cubicle
Solenoid valves
Nozzle for regeneration air
Pressure gauge, tower A
Pressure gauge, tower B
Air filter
Control air valve
PDP sensor (if installed)
Pressure sensor
Control panel
The dryer is controlled by a Purelogic TM controller. Consult the dedicated chapter for a complete description of the controller functions.
Safety valve
If no fire extinguishing system is present close to the dryer, safety valves must be installed on the vessels of the dryer in order to relieve the overpressure in the vessel because of fire in the neighbourhood of the dryer.
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Sonic nozzle (available as an option)
Excessively high air velocity (e.g. due to low inlet pressure) may cause the desiccant to "float" in the vessels. The desiccant beads scrape against each other, creating additional dust. High-speed flow occurs when a compressor starts against an empty air net or when working at a discharge air pressure that is too low. A high volume of compressed air output can result in a pressure drop, which in turn increases the speed.
Therefore, it is recommended to protect the drying medium against excessive volumetric flow through the desiccant by installing a sonic nozzle.
Refer to the instruction delivered with the sonic nozzle to install and adjust it.
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 Purelogic™ controller and a PDP
(Pressure Dew Point) sensor (when installed and activated).
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).
The regeneration time is regulated by a programmed half cycle time. Solenoid valves, controlled by the controller, energize the pneumatic valves that determine the function of the towers. In case a PDP sensor is installed and activated, 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 232 psi versions) to the PDP sensor.
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 °F or -100 °F), 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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Reference
(1)
(2)
(3)
(4)
(5)
(6)
(7)
(8)
PI
OF1
V21/V22
PI01/PI02
V1/V2
Designation
Sonic nozzle (optional)
Outlet
Air net
Dryer
Vessel
Compressor
Inlet
Controller
Pressure indicator
Outlet filter
Safety valve
Pressure indicator, vessel A/B
Inlet valve, vessel A/B
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Reference Designation
107 3/2 spool valve monostable
PS
100
Pressure switch
Manual valve
101
104
Pilot air filter
Pressure regulator (only on 232 psi version)
112
103
V11/V12
114
Adjustable restriction
Filter with drain
Outlet valve, vessel A/B
Orifice
IF1/IF2 Inlet filter
PT01/PT02 Pressure vessel A/B
V3/V4
109
Regulating valve, vessel A/B
Silencer
11
Reference
TT01
Designation
Inlet temperature
Reference Designation
PDP01 Pressure Dew Point
Instruction book
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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:
Reference
F1/2/...
Y1/Y2
PT01/PT02
E1
PDS11/12/13
S1'
Designation
Fuses
Reference
T1
Solenoid valves MT01
Pressure transducer, Tower A/B TT01
Regulator
Pressure drop (ΔP) over filter
(optional)
E2
S0
Remote start/stop switch
(optional)
S3'
Designation
Transformer
PDP sensor
Temperature sensor, inlet
Expansion module IO2
Main switch (customer's installation)
Remote emergency stop
(optional)
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4 Controller
4.1
Control panel
14
7
8
5
6
9
10
11
12
13
14
2
3
4
Reference Designation
1 Display
Pictogram
Pictogram
General alarm LED
Pictogram
Service LED
Automatic operation LED
Voltage on LED
Pictogram
Enter key
Escape key
Scroll keys
Stop button
Start button
Purelogic controller
Function
Shows the dryer operating condition and a number of icons to navigate through the menu.
Automatic operation
General alarm
Blinks when operating in shutdown warning condition.
Service
Lights up when service is needed.
Indicates that the controller runs in automatic mode.
Lights up when supply is switched on. Dryer unit might start automatically!
Voltage on
Enter and confirmation key
To navigate to previous screen or to cancel current action
Keys to scroll through the menu
Button to stop the dryer. LED (7) dims.
Button to start the dryer. LED (7) lights up, indicating that the controller is operational.
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4.2
Digital output contacts
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.
Connections for external equipment
The controller always comes with expansion module IO2 that has a number of digital output contacts which can be used to connect external equipment.
Depending on the optional equipment, extra expansion modules are added to the machine configuration
(IO2, IO34).
Expansion Module IO2
The digital output contacts have following specifications:
Relay
K01
Connector
3 X 31
K02 3 X 31
Maximum load
15 A / 250 V AC
15 A / 30 V DC
RC* protected
15 A / 250 V AC
15 A / 30 V DC
RC* protected
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16
K07
K08
K09
K10
K11
K12
Relay
K03
K04
K05
K06
K13
K14
3 X 32
3 X 32
K15
* = Resistor Capacitor
3 X 32
3 X 30
3 X 30
3 X 30
3 X 32
3 X 32
3 X 32
Connector
3 X 31
3 X 31
3 X 30
3 X 30
Maximum load
15 A / 250 V AC
15 A / 30 V DC
RC* protected
10 A / 250 V AC
10 A / 30 V DC resistive load
10 A / 250 V AC
10 A / 30 V DC resistive load
10 A / 250 V AC
10 A / 30 V DC resistive load
10 A / 250 V AC
10 A / 30 V DC resistive load
10 A / 250 V AC
10 A / 30 V DC resistive load
10 A / 250 V AC
10 A / 30 V DC resistive load
10 A / 250 V AC
10 A / 30 V DC resistive load
10 A / 250 V AC
10 A / 30 V DC resistive load
10 A / 250 V AC
10 A / 30 V DC resistive load
10 A / 250 V AC
10 A / 30 V DC resistive load
10 A / 250 V AC
10 A / 30 V DC resistive load
10 A / 250 V AC
10 A / 30 V DC resistive load
Instruction book
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Instruction book
4.3
Icons used
Status icons
Name
Stopped/Running
Machine control mode
Automatic restart after voltage failure
Week timer
Active protection functions
Service
Main screen
Icon Description
When the dryer is stopped, the icon stands still.
When the dryer is running, the icon is rotating.
Local start/stop
Remote start/stop
Network control
Automatic restart after voltage failure is active
Week timer is active
Emergency stop
Shutdown
Warning
Service required
Main chart
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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
Acess key / User password
Menu icons
Icon Description
Inputs
Outputs
Alarms (Warnings, shutdowns)
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Icon Description
Counters
Test
Settings
Service
Event history (saved data)
Set point
Info
Week timer
Navigation arrows
Icon Description
Up
Down
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4.4
Main screen
Control panel
(1)
(2)
(3)
Purelogic controller
Scroll keys
Enter key
Cancel / Escape key
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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Two and four value views
Typical Main screen (Four value lines)
Text on figures
(1)
(2)
Pressure Equalization
Menu
• 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
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Remote control
Network control
• Optional icons
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Instruction book
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
Menu
Modify
Reset
Function
To go to the menu
To modify programmable settings
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
22
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.
4.5
Controller menu structure
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
Overview
Service Plan
Next Service
History
Description
Displays an overview of the running service plans.
Displays configuration of the service plans.
Displays the next service task.
Displays a log of all automatic shutdowns that have appeared in the past.
PROTECTIONS
Topic
Emergency Stop
A: High Working Pressure
B: High Working Pressure
Low Dryer Inlet Temperature
A: High Regeneration Temperature
B: High Regeneration Temperature
High Dryer Inlet Temperature
Expansion Module Communication
High Dewpoint
Low Inlet Pressure
Failed to Blow Off Vessel A
Failed to Blow Off Vessel B
Failed to Pressurize
WEEK TIMER
Description
Displays a list of main protections.
Displays the protection of the high working pressure of vessel A.
Displays the protection of the high working pressure of vessel B.
Displays the low inlet protection temperature of the dryer.
Displays the protection of the high regeneration temperature of vessel A.
Displays the protection of the high regeneration temperature of vessel B.
Displays the high inlet protection temperature of the dryer.
Displays the protection of the expansion module communication.
Displays the protection of the high dewpoint temperature.
Displays the protection of the low inlet pressure.
Displays the fail to blow off vessel A.
Displays the fail to blow off vessel A.
Displays the fail to pressurize.
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Topic
Week Action Schemes
Week Cycle
Description
Displays 4 programmable 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 schemes.
Status Displays the status (On/Off) of the week timer functionality.
Remaining Running Time Allows to set a timer to keep the compressor running for 1-240 minutes.
INFORMATION
Topic www.xxxxxxxx.com
More
TEST
Topic
Output Test
Depressurize Vessels
Description
Refers to the company website where more detailed info on the product can be found.
The More button displays the software versions, addresses, licenses, ...
Description
Allows a functionality check of the output.
Allows a functionality check of the depressurization of the vessels.
COUNTERS
Topic Description
Running Hours Dryers
Loaded Hours Dryers
Standby Time
Actual State time
Displays the number of hours the dryer has been running.
Displays the number of hours the dryer has been running in loaded mode.
Displays the number of hours the dryer is in stand by.
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 Halve Cycle Time Displays the number of hours the dryer is in halve cycle state.
Programmed Halve Cycle
Time
Regeneration Cycles Vessel
A
Displays the number of hours the dryer will be in halve cycle state.
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
PDP Extended Cycle
PDP Switching
Temperature
PDP Alarm Offset
Description
Displays if the PDP extendend cycle is activated or not.
Displays the PDP switching temperature
Displays the PDP alarm offset
INPUTS
Topic Description
Pressure Vessel A
Pressure Vessel B
Displays the pressure of vessel A.
Displays the pressure of vessel B.
Inlet Dryer Displays the dryer inlet temperature.
Dryer Pressure Dewpoint Displays the dryer pressure dewpoint temperature.
Emergency Stop
Remote Start/Stop
Displays the emergency stop status.
Displays the remote start/stop status.
OUTPUTS
Topic
Dryer Motor
Low Pressure Alarm
General Shutdown
General warning
Pressure Relief Valve A
Pressure Relief Valve B
EVENT HISTORY
Topic
-
Description
Indicates that the dryer is running.
Displays status of low pressure alarm.
Displays status of general shutdown.
Displays status of general warning.
Displays if pressure relief valve A is present.
Displays if pressure relief valve B is present.
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
Network
General
Regulation
Remote Control
Automatic Restart
Access Key
Main Chart
Description
Displays the CAN and ethernet configuration
Displays settings concerning time, date, unit and display time-out
Displays settings concerning the compressed air flow regulation
Displays setting concerning the remote control
Automatic Restart After Voltage Failure can only be enabled by a service technician.
Displays the controller access level that can be modified with password input
Displays the input and the range of the main chart
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Instruction book
4.6
Test menu
Controller
Menu icon, Test
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
• Move the cursor to the Menu action button and press the enter key (2); following screen appears:
• 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:
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Instruction book
Text on figure
(1)
(2)
Test
Depressurize vessels
• A red selection bar is covering the item Depressurize vessels ; press the Enter key to depressurize the vessels.
4.7
Modifying settings
Controller
(1)
(2)
(3)
Menu icon, Settings
Scroll keys
Enter key
Escape key
Function
To display and modify a number of settings (e.g. Time, Date, Date format, Language, units ...).
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Procedure
Starting from the Main screen (see
• 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:
• The screen shows a number of icons:
Icon Function
Network settings
General settings
Regulation settings
Automatic restart after voltage failure settings
Access key
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Icon Function
User password
• Move the cursor to the icon of the function to be modified and press the Enter key.
Modifying network settings
• Select the network settings icon as described above and press the Enter button (2). Following screen appears:
30
Text on figure
(1)
(2)
(3)
Network
Ethernet
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:
Screen for Ethernet settings
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Instruction book
Text on figure
(1)
(2)
(3)
(4)
(5)
Ethernet
IP Address
Subnet mask
Gateway IP
Modify
Screen for CAN settings
Text on figure
(1)
(2)
(3)
(4)
CAN
CAN Address
Communication profile
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).
• 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:
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Text on figure
(1)
(2)
(3)
(4)
(5)
General
Language in use
Time
Date
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:
32
Text on figure
(1)
(2)
(3)
Regulation
PDP extended cycle
Activated
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Instruction book
(4)
(5)
(6)
(7)
(8)
PDP switching temperature
PDP Alarm offset
Heatless backup mode (see note *)
Not activated
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:
Text on figure
(1)
(2)
(3)
(4)
Automatic restart (Not Activated)
Maximum power down time
Restart delay
Modify
• The screen shows the list of all settings.
• Press the Enter button (2); a red selection bar is covering the first item (Automatic restart).
Use the ↓ key of the Scroll keys to select the setting to be modified and press the Enter key.
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Instruction book
• A pop-up screen appears. Use the ↑ or ↓ key to select the required parameter and press the Enter key to confirm.
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.
4.8
Web server
All controllers have a built-in web server that allows direct connection to the company network or to a dedicated PC via a local area network (LAN). This allows to consult certain data and settings via a PC instead of the display of the controller.
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).
Configuration of the network card
• Go to Network and Sharing Center (1).
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• Click on Change adapter settings (1).
• Select the Local Area Connection, which is connected to the controller.
• Click with the right button and select Properties (1).
• 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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• Use the following settings:
• IP Address 192.168.100.200 (1)
• Subnetmask 255.255.255.0 (2)
Click OK (3) and close network connections.
Configure a company network (LAN) connection
• Ask your IT department to generate a fixed IP address in your company’s network.
• That IP address will be excluded from the DNS server, so it will be reserved for the controller.
• Also get the correct Gateway and Subnet mask settings. For example:
• IP = 10.25.43.200
• Gateway = 10.25.42.250
• Subnet mask = 255.255.254.0
• Connect the controller to the company's network (LAN) by using a UTP cable (min. CAT 5e).
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• Adapt the network settings in the controller:
• Go to Main Menu
2920 1891 00
• Go to Settings (1)
• Go to Network (1)
37
Instruction book
38
• Go to Ethernet (1)
• Switch Off (1) the Ethernet communication to allow editing the settings
• Adapt IP Address (1)
• Adapt Gateway IP (2)
• Adapt Subnet Mask (3)
• Switch On (4) the Ethernet communication
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Instruction book
• Wait a few minutes so the LAN network can connect to the controller
Configuration of the web server
The internal web server is designed and tested for Microsoft ® Internet Explorer.
Also "Opera", "Mozilla Firefox", "Safari" and "Chrome" should work.
Viewing the controller data
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:
2920 1891 00
Screen shot (example!)
39
Instruction book
Navigation and options
• The banner shows the unit type and the language selector. In this example, three languages are available on the controller.
• 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.
40
Info status
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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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4.9
Programmable settings
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
5.1
Dimension drawings
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PH 230 HE (in inch)
43
Instruction book
44
PH 320 HE (in inch)
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PH 390 HE (in inch)
45
Instruction book
46
PH 530 HE (in inch)
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(1)
(2)
(3)
(4)
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PH 635 HE (in inch)
Center of gravity
Dimension of inlet and outlet connection
Dryer inlet
Dryer outlet
47
Instruction book
5.2
Installation proposal
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.
48
1
2
COMP
AR
D
EIV
EOV
BV
Compressor
Air receiver
Dryer
External inlet valve (not shown)
To cut off the air supply towards the dryer
External outlet valve (not shown)
To cut off the air supply towards the air consumer
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.
The drain pipes to the drain collector must not dip into the water. For draining of pure condensate water, install an oil/water separator.
Minimum free area to be reserved for the dryer installation
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3
4
5
6
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).
High efficiency filter, particle removal down to 0.01 micron, maximum oil carry-over
0.01 ppm
To remove remaining impurities.
Dust filter, particle removal down to 1 micron
To remove dust particles originating from the desiccant.
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.
5.3
Electrical connections
The electrical wiring must comply with the local regulations. The air dryer must be earthed and protected by fuses against short-circuiting.
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50
Instruction book
Connect the supply voltage to terminals 1X0 (L1 - L2) and 1X3 (earth). Install a power switch and fuses in the supply line.
Maximum value fuse F1 and F2 is 10 A.
Reference
(1)
(2)
(3)
Description
Customer's installation
Door
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
Safety
Operating instructions
Always observe all relevant safety instructions.
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 Purelogic™ 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).
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 -100 ˚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.
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Instruction book
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 Purelogic™ 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
8092 2617 37
8092 2617 45
8092 2617 52
8092 2617 60
8092 2617 78
Sonic nozzle for PH 230 HE
Sonic nozzle for PH 320 HE
Sonic nozzle for PH 390 HE
Sonic nozzle for PH 530 HE
Sonic nozzle for PH 635 HE
During operation
At regular intervals, check the status of the LED’s on the control panel. Refer to section
.
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.
The LED’s for PDP warning and PDP alarm are only functional if the dryer is equipped with a PDP sensor!
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 Purelogic™ 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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Instruction book
7 Maintenance
7.1
Maintenance
General recommendations and precautions
The dryer does not need any specific maintenance. Nevertheless, before carrying out any maintenance or corrective activity, read the following recommendations and safety precautions and act accordingly:
• Stop the dryer by pushing the Stop button (13) on the Purelogic™ 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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Preventive maintenance schedule
Frequency
Daily
Every 6 months or every 4000 hours of operation (1)
Every year or every 8000 hours of operation (1)
Every five years or every 40000 hours
(1)
Service plan Activity
Check the display panel for information and service messages.
A
B
• Check for damaged wiring or loose connections.
• Check for air leaks.
• Replace the in- and outlet filter cartridges.
• Replace the silencers.
• Service plan A
• Exchange the dew point sensor. The certificate is valid only one year. Contact the supplier of your equipment for re-calibration of the PDP sensor.
C • Service plan B
• Replace desiccant
• Replace the inlet valves and revise the actuators
• Replace the check valves
Always replace all o-rings, seals and nylon washers that come free when executing the scheduled maintenance.
(1) whichever comes first
In normal working conditions, the lifetime of the desiccant is approximately 5 years.
It is recommended to have the desiccant cartridges replaced by a qualified service technician, authorized by the manufacturer.
Reset the service timer after a maintenance intervention.
All spare parts required for scheduled maintenance are included in specific service kits. Consult the spare parts list for part number information.
7.2
Disposal of used material
Used filters or any other used material (e.g. desiccant, lubricants, cleaning rags, machine parts, etc.) must be disposed of in an environmentally friendly and safe manner, and in line with the local recommendations and environmental legislation.
Refer to local regulations for directions on how to dispose of electronic components in an environmentally friendly manner.
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8 Problem solving
Overview
Symptom
The dryer produces a lot of noise.
Insufficient air leaves the dryer.
LED Service warning /
Service alarm is alight.
Possible cause
PDP temperature too high The dryer has not had the time to regenerate completely.
The silencers are clogged.
The drain is not working correctly.
The air flow through the dryer is too high.
The outlet pressure is too low.
The inlet temperature is too high.
Free water in the dryer.
Check the silencer and its fixation to the unit.
Too much purge air escapes.
Both LED’s are timer-controlled and will light up after a certain time
(orange LED (warning) after 7750 hours, red LED (alarm) after 8000 hours).
Corrective action
Close the valve installed between the dryer and the application (if permitted) and have the desiccant regenerated.
Replace the silencers.
Check the drain valve of the filter.
Check for correct application.
Check whether the compressor provides enough air for the application.
Check the compressor aftercooler.
Check the water separator (WSD) and the drain valve of the filters upstream of the dryer.
Replace the silencer if necessary or correct its fixation.
Check the condition of the solenoid valve and replace it if necessary.
Contact your supplier for maintenance.
Reset the timer after maintenance.
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9 Technical data
9.1
Reference conditions
Condition
Effective inlet pressure of compressed air
Inlet temperature of compressed air
Relative humidity of the air at inlet
Pressure dew point (PDP), standard version
Pressure dew point (PDP), optional version
9.2
Limitations for operation
Limitation
Max. effective inlet pressure of compressed air
Min. effective inlet pressure of compressed air
Maximum ambient air temperature
Minimum ambient air temperature
Max. inlet temperature of compressed air
Min. inlet temperature of compressed air
Unit psi psi
˚F
˚F
˚F
˚F
Unit psi
˚F
%
˚F
˚F
160 psi
101.5
95
100
-40
-100
210 psi
181.3
95
100
-40
-100
160 psi
160
58.0
104
35.6
122
35.6
210 psi
210
160
104
35.6
122
35.6
9.3
Specific data
Standard version (PDP -40 ˚F) - 160 psi
Desiccant type: activated alumina (Al
2
O
3
)
Max. volume flow at dryer inlet
Total amount of desiccant
Mass
Time of half a cycle
Regeneration time
Installed power cfm lb lb s s
W
PH 230
HE
227
309
750
180
145
63
PH 320
HE
318
375
915
180
145
63
PH 390
HE
392
441
981
180
145
63
PH 530
HE
530
573
1223
180
145
63
PH 635
HE
636
661
1433
180
145
63
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Instruction book
Standard version (PDP -40 ˚F) - 232 psi
Desiccant type: activated alumina (Al
2
O
3
)
Max. volume flow at dryer inlet
Regeneration air consumption average at max. inlet flow
Total amount of desiccant
Mass
Time of half a cycle
Regeneration time
Installed power cfm
% lb lb s s
W
309
750
250
195
63
PH 230
HE
271
15
375
915
250
195
63
PH 320
HE
381
15
441
981
250
195
63
PH 390
HE
466
15
PH 530
HE
636
15
573
1223
250
195
63
PH 635
HE
763
15
661
1433
250
195
63
Special version (PDP -100 ˚F) - 160 psi
Desiccant type: molecular sieves
Max. volume flow at dryer inlet
Regeneration air consumption average at max. inlet flow
Total amount of desiccant
Mass
Time of half a cycle
Regeneration time
Installed power cfm
% lb lb s s
W
Special version (PDP -100 ˚F) - 232 psi
Desiccant type: molecular sieves
Max. volume flow at dryer inlet
Regeneration air consumption average at max. inlet flow
Total amount of desiccant
Mass
Time of half a cycle
Regeneration time
Installed power cfm
% lb lb s s
W
309
750
180
145
63
PH 230
HE
182
23
375
915
180
145
63
PH 320
HE
254
23
441
981
180
145
63
PH 390
HE
313
23
PH 530
HE
424
23
573
1323
180
145
63
PH 635
HE
509
23
661
1433
180
145
63
309
750
250
195
63
PH 230
HE
218
18
375
915
250
195
63
PH 320
HE
305
18
441
981
250
195
63
PH 390
HE
371
18
PH 530
HE
509
18
573
1323
250
195
63
PH 635
HE
614
18
661
1433
250
195
63
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Recommended filter size
PH 230 HE
PH 320 HE
PH 390 HE
PH 530 HE
PH 635 HE
High efficiency coalescing filter
PF 6 C HE
PF 7 C HE
PF 8 C HE
PF 9 C HE
PF 9 C HE
Particulate filter
PF 6 S HE
PF 7 S HE
PF 8 S HE
PF 9 S HE
PF 9 S HE
General purpose coalescing filter
PF 6 G HE
PF 7 G HE
PF 8 G HE
PF 9 G HE
PF 9 G HE
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Instruction book
10 Instructions for Use
Instructions
1
4
5
2
3
6
Description
The dryers can contain pressurized air. This can be potentially dangerous if the equipment is misused.
The dryer vessels must only be used as a compressed air vessel and must be operated within the limits specified on the data plate.
No alterations must be made to the vessels by welding, drilling or other mechanical methods without the written permission of the manufacturer.
The design pressure and temperature of this pressure bearing part must be clearly indicated on the data plate.
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.
Original bolts have to be used after opening for inspection. The maximum torque has to be taken into consideration (see table below).
Maximum bolt torque
Thread size
M3
M4
M5
M6
M8
M10
M12
M14
M16
M18
M20
Tightening torque
(Nm)
5
8
1
2.4
20
41
73
115
185
238
335
Allowed deviation
(Nm)
0.3
0.6
1.2
2.1
5
10
18
29
46
60
84
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11 Guidelines for inspection
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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www.pneumatech.com
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