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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 bookOriginal instructions

Copyright noticeAny unauthorized use or copying of the contents or any part thereof is prohibited.

This applies in particular to trademarks, model denominations, part numbers anddrawings.

This instruction book is valid for CE as well as non-CE labelled machines. It meets therequirements for instructions specified by the applicable European directives asidentified in the Declaration of Conformity.

2016 - 08

No. 2920 1891 00

www.pneumatech.com

Table of contents

1 Safety precautions..........................................................................................................4

1.1 SAFETY ICONS................................................................................................................................... 4

1.2 SAFETY PRECAUTIONS, GENERAL...........................................................................................................4

1.3 SAFETY PRECAUTIONS DURING INSTALLATION...........................................................................................5

1.4 SAFETY PRECAUTIONS DURING OPERATION.............................................................................................. 6

1.5 SAFETY PRECAUTIONS DURING MAINTENANCE OR REPAIR........................................................................... 6

2 General description........................................................................................................8

2.1 GENERAL DESCRIPTION....................................................................................................................... 8

2.2 OPERATION.....................................................................................................................................10

3 Electrical diagram.........................................................................................................13

4 Controller.......................................................................................................................14

4.1 CONTROL PANEL.............................................................................................................................. 14

4.2 DIGITAL OUTPUT CONTACTS................................................................................................................15

4.3 ICONS USED.................................................................................................................................... 17

4.4 MAIN SCREEN..................................................................................................................................20

4.5 CONTROLLER MENU STRUCTURE..........................................................................................................23

4.6 TEST MENU.....................................................................................................................................27

4.7 MODIFYING SETTINGS........................................................................................................................28

4.8 WEB SERVER.................................................................................................................................. 34

4.9 PROGRAMMABLE SETTINGS.................................................................................................................42

5 Installation.....................................................................................................................43

5.1 DIMENSION DRAWINGS.......................................................................................................................43

5.2 INSTALLATION PROPOSAL................................................................................................................... 48

5.3 ELECTRICAL CONNECTIONS.................................................................................................................49

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6 Operating instructions................................................................................................. 51

7 Maintenance..................................................................................................................54

7.1 MAINTENANCE................................................................................................................................. 54

7.2 DISPOSAL OF USED MATERIAL............................................................................................................. 55

8 Problem solving............................................................................................................56

9 Technical data...............................................................................................................57

9.1 REFERENCE CONDITIONS................................................................................................................... 57

9.2 LIMITATIONS FOR OPERATION..............................................................................................................57

9.3 SPECIFIC DATA................................................................................................................................ 57

10 Instructions for Use......................................................................................................60

11 Guidelines for inspection.............................................................................................61

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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, ornon-observance of the normal caution and care required for installation, operation,maintenance and repair, even if not expressly stated, will be disclaimed by themanufacturer.

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 andstandards.

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, thepower isolating switch must be opened and locked. For plug versions, remove the plug from the wallsocket 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 withextreme caution and wear eye protection.

8. The owner is responsible for maintaining the dryer in safe operating condition. Parts and accessoriesshall 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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1.3 Safety precautions during installation

Precautions during installation1. 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 todwell or stay in the risk zone under a lifted load. Lifting acceleration and deceleration must be keptwithin 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 suctionduct. 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 theworking pressure.

5. The aspirated air must be free of flammable fumes, vapors and particles, e.g. paint solvents, that canlead 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 toflammable 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 andlocked before any maintenance or repair. As a further safeguard, persons switching on remotelycontrolled machines shall take adequate precautions to ensure that there is no one checking orworking 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 earthedand protected against short circuits by fuses in all phases. A lockable power isolating switch must beinstalled near the equipment.

10. On machines with automatic start-stop system or if the automatic restart function after voltage failureis activated, a sign stating "This machine may start without warning" must be affixed near theinstrument panel.

11. Never remove or tamper with the safety devices, guards or insulation fitted on the machine. Everypressure vessel or auxiliary installed outside the machine to contain air above atmospheric pressuremust 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 accidentallytouched by personnel during normal operation must be guarded or insulated. Other high-temperaturepiping must be clearly marked.

13. If no safety valve is present in the air net close to the desiccant dryer (e.g. safety valve ofcompressor), 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 flowsafety valve must be installed between the compressor and the dryer in order to blow off the excessivepressure 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 Safetyprecautions during maintenance or repair.These precautions apply to machinery processing or consuming air or inert gas. Processingof any other gas requires additional safety precautions typical to the application which arenot included herein.Some precautions are general and cover several machine types and equipment; hencesome statements may not apply to your machine.

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1.4 Safety precautions during operation

Precautions during operation1. 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. Makesure that a hose is fully depressurized before disconnecting it.

3. Persons switching on remotely controlled machines shall take adequate precautions to ensure thatthere is no one checking or working on the machine. To this end, a suitable notice shall be affixed tothe remote start equipment.

4. Never operate the machine when there is a possibility of taking in flammable or toxic fumes, vaporsor 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 abuse8. 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. Everypressure vessel or auxiliary installed outside the machine to contain air above atmospheric pressureshall 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 berespected. Local regulations remain applicable if they are more strict.

Also consult following safety precautions: Safety precautions during installation and Safetyprecautions during maintenance or repair.These precautions apply to machinery processing or consuming air or inert gas. Processingof any other gas requires additional safety precautions typical to the application which arenot included herein.Some precautions are general and cover several machine types and equipment; hencesome statements may not apply to your machine.

1.5 Safety precautions during maintenance or repair

Precautions during maintenance or repair1. 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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5. A warning sign bearing a legend such as "Work in progress - do not start" shall be attached to thestarting equipment.

6. Persons switching on remotely controlled machines shall take adequate precautions to ensure thatthere is no one checking or working on the machine. To this end, a suitable notice shall be affixed tothe 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 haselapsed; 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 andthat 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 thebodywork, is in good condition. If damaged, replace it by genuine material from the manufacturer toprevent 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 Safetyprecautions during operation.These precautions apply to machinery processing or consuming air or inert gas. Processingof any other gas requires additional safety precautions typical to the application which arenot included herein.Some precautions are general and cover several machine types and equipment; hencesome statements may not apply to your machine.

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2 General description

2.1 General description

IntroductionThe air dryers described in this book are heatless adsorption dryers, built to remove moisture fromcompressed 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) sensorcan be installed with a sales kit.

Main partsA general overview of the main parts of the dryer units is given in below images:

Front view PH 230 HE up to PH 635 HE

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Rear view PH 230 HE up to PH 635 HE

Reference Designation Reference DesignationA Tower A 1 Control panelB Tower B 2 Purelogic™ controllerIN Dryer inlet 3 CubicleOUT Dryer outlet SV Solenoid valvesIV Inlet valve N Nozzle for regeneration airPA Pneumatic actuator P1 Pressure gauge, tower APV Pneumatic valve P2 Pressure gauge, tower BS Silencer AF Air filterNV Non-return valve CA Control air valvePR Pressure regulator (232 psi version) PDP PDP sensor (if installed)P01 Pressure sensor P02 Pressure sensor

Control panel

The dryer is controlled by a PurelogicTM controller. Consult the dedicated chapter for a completedescription of the controller functions.

Safety valveIf no fire extinguishing system is present close to the dryer, safety valves must be installed on the vessels ofthe 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 thevessels. The desiccant beads scrape against each other, creating additional dust. High-speed flow occurswhen a compressor starts against an empty air net or when working at a discharge air pressure that is toolow. A high volume of compressed air output can result in a pressure drop, which in turn increases thespeed.

Therefore, it is recommended to protect the drying medium against excessive volumetric flow through thedesiccant 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 canadsorb 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), whichare controlled by a pneumatic actuator (PA). As the air flows upwards through the tower, the desiccantadsorbs 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 beingregenerated. Regeneration of the desiccant is achieved by means of purge air from the drying tower: asmall portion of the dried air passes a nozzle (N), expands to atmospheric pressure and flows downwardsthrough the other tower, regenerating the desiccant. The regenerating air is released via the correspondingexhaust valve (PV) and the silencer (S).

The regeneration time is regulated by a programmed half cycle time. Solenoid valves, controlled by thecontroller, energize the pneumatic valves that determine the function of the towers. In case a PDP sensor isinstalled and activated, a second small portion of the dried air flows via the control air valve (100), a smallair 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 asthe PDP temperature is below the set point (-40 °F or -100 °F), the drying tower will keep on drying, untilthe PDP temperature exceeds the set point. On that moment the regenerated tower will start drying thecompressed air and the other tower will start regenerating. As long as the PDP temperature is below the setpoint, regeneration of the non-drying tower is stopped after the pre-set time interval of the timer haselapsed. As a result, reduction of purge air is achieved.

Flow diagramThe figure below shows the pneumatic diagram of the dryer.

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Reference Designation Reference Designation(1) Sonic nozzle (optional) 107 3/2 spool valve monostable(2) Outlet PS Pressure switch(3) Air net 100 Manual valve(4) Dryer 101 Pilot air filter(5) Vessel 104 Pressure regulator (only on 232 psi

version)(6) Compressor 112 Adjustable restriction(7) Inlet 103 Filter with drain(8) Controller V11/V12 Outlet valve, vessel A/BPI Pressure indicator 114 OrificeOF1 Outlet filter IF1/IF2 Inlet filterV21/V22 Safety valve PT01/PT02 Pressure vessel A/BPI01/PI02 Pressure indicator, vessel A/B V3/V4 Regulating valve, vessel A/BV1/V2 Inlet valve, vessel A/B 109 Silencer

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Reference Designation Reference DesignationTT01 Inlet temperature PDP01 Pressure Dew Point

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3 Electrical diagramThe complete electrical diagram is available inside the electric cabinet.

Some generally used symbols are given in below table:

Reference Designation Reference DesignationF1/2/... Fuses T1 TransformerY1/Y2 Solenoid valves MT01 PDP sensorPT01/PT02 Pressure transducer, Tower A/B TT01 Temperature sensor, inletE1 Regulator E2 Expansion module IO2PDS11/12/13 Pressure drop (ΔP) over filter

(optional)S0 Main switch (customer's

installation)S1' Remote start/stop switch

(optional)S3' Remote emergency stop

(optional)

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4 Controller

4.1 Control panel

Purelogic controller

Reference Designation Function1 Display Shows the dryer operating condition and a number

of icons to navigate through the menu.2 Pictogram Automatic operation3 Pictogram General alarm4 General alarm LED Blinks when operating in shutdown warning

condition.5 Pictogram Service6 Service LED Lights up when service is needed.7 Automatic operation LED Indicates that the controller runs in automatic mode.8 Voltage on LED Lights up when supply is switched on. Dryer unit

might start automatically!9 Pictogram Voltage on10 Enter key Enter and confirmation key11 Escape key To navigate to previous screen or to cancel current

action12 Scroll keys Keys to scroll through the menu13 Stop button Button to stop the dryer. LED (7) dims.14 Start button 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. Theyshould NOT be used to control, switch or interrupt safety related circuits.

Stop the compressor and switch off the supply before connecting external equipment. Checkthe Safety precautions.

Connections for external equipmentThe controller always comes with expansion module IO2 that has a number of digital output contactswhich 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 Connector Maximum loadK01 3 X 31 15 A / 250 V AC

15 A / 30 V DCRC* protected

K02 3 X 31 15 A / 250 V AC15 A / 30 V DCRC* protected

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Relay Connector Maximum loadK03 3 X 31 15 A / 250 V AC

15 A / 30 V DCRC* protected

K04 3 X 31 10 A / 250 V AC10 A / 30 V DCresistive load












* = Resistor Capacitor

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4.3 Icons used

Status icons

Name Icon DescriptionStopped/Running When the dryer is stopped, the icon stands still.

When the dryer is running, the icon is rotating.

Machine control mode Local start/stop

Remote start/stop

Network control

Automatic restart after voltagefailure

Automatic restart after voltage failure is active

Week timer Week timer is active

Active protection functions Emergency stop

Shutdown

Warning

Service Service required

Main screen Main chart

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Input icons

Icon DescriptionPressure

Temperature

Digital input

Special protection

System icons

Icon DescriptionFailure expansion module

Network problem

General alarm

Regulation

General settings

Acess key / User password

Menu icons

Icon DescriptionInputs

Outputs

Alarms (Warnings, shutdowns)

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Icon DescriptionCounters

Test

Settings

Service

Event history (saved data)

Set point

Info

Week timer

Navigation arrows

Icon DescriptionUp

Down

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4.4 Main screen

Control panel

Purelogic controller

(1) Scroll keys(2) Enter key(3) Cancel / Escape key

FunctionThe main screen shows the status of the dryer and is the gateway to all functionality implemented in thecontroller.

The main screen is shown automatically when the power is switched on. The display switches to sleepmode when no keys are pushed for a programmable time.

Five different main screens can be chosen:

1. Two value lines2. Four value lines3. 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) Pressure Equalization(2) Menu

• Section A displays information regarding the dryer operation (e.g. outlet pressure, temperature atdryer 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 iconsThese icons are always shown in the main screen. If the icon is selected and the Enter key ispushed, the screen will jump to the corresponding menu (e.g. if the icon for Motor stopped orRunning Loaded is selected, the screen will jump directly to the regulation menu after pressingthe Enter key).

• Control mode iconsThese icons are always shown in the main screen. If the icon is selected and the Enter key ispushed, the screen jumps to the control mode menu. Following control modes are available:

Local control

Remote control

Network control

• Optional icons

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These icons are only shown if their corresponding function is activated (e.g. week timer,automatic restart after voltage failure, etc.)

• Pop up iconsThese 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 theEnter key.

• Section C is called the Status barThis 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 FunctionMenu To go to the menuModify To modify programmable settingsReset 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 isdisplayed. The value displayed on the Y-axis depends on the selection made in the input screen. Each chartdot represents 1 second.

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When the Chart (Medium Resolution) display is selected, a chart with an X-axis covering 4 hours isdisplayed. The value displayed on the Y-axis depends on the selection made in the input screen. Each chartdot 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 dotrepresents a 1 hour average value.

4.5 Controller menu structure

Main menuPress the Enter key to go to the main menu screen that is shown below.

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Menu structurePlease find the tree structure on the 2 top levels below. The items are mentioned as they appear on thescreen from top to bottom and left to right. If questions regarding lower levels appear, please consult yourlocal Customer Center.

SERVICE

Topic DescriptionOverview 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 DescriptionEmergency 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.

A: High Regeneration TemperatureDisplays the protection of the high regeneration temperature ofvessel A.

B: High Regeneration TemperatureDisplays the protection of the high regeneration temperature ofvessel 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 A.Failed to Pressurize Displays the fail to pressurize.

WEEK TIMER

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Topic Description

Week Action SchemesDisplays 4 programmable week action schemes.Each week action scheme contains 7 programmable days and these days cancontain a number of successive events on selected time slots.

Week Cycle Contains 10 weeks and each week can be selected as 1 of the 4 week actionschemes.

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 Description

www.xxxxxxxx.comRefers to the company website where more detailed info on the product can befound.

More The More button displays the software versions, addresses, licenses, ...

TEST

Topic DescriptionOutput Test Allows a functionality check of the output.Depressurize Vessels Allows a functionality check of the depressurization of the vessels.

COUNTERS

Topic DescriptionRunning 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 Halve Cycle Time Displays the number of hours the dryer is in halve cycle state.Programmed Halve CycleTime Displays the number of hours the dryer will be in halve cycle state.Regeneration Cycles VesselA Displays the number of regeneration cycles of vessel A.Regeneration Cycles VesselB 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 DescriptionPDP Extended Cycle Displays if the PDP extendend cycle is activated or not.PDP SwitchingTemperature Displays the PDP switching temperaturePDP Alarm Offset Displays the PDP alarm offset

INPUTS

Topic DescriptionPressure 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 DescriptionDryer 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 DescriptionNetwork Displays the CAN and ethernet configurationGeneral Displays settings concerning time, date, unit and display time-outRegulation Displays settings concerning the compressed air flow regulationRemote Control Displays setting concerning the remote control

Automatic Restart Automatic Restart After Voltage Failure can only be enabled by a servicetechnician.

Access Key Displays the controller access level that can be modified with password inputMain Chart Displays the input and the range of the main chart

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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.

ProcedureStarting from the Main screen (see Main screen):

• 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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Text on figure

(1) Test(2) Depressurize vessels

• A red selection bar is covering the item Depressurize vessels ; press the Enter key to depressurize thevessels.

4.7 Modifying settings

Controller

(1) Scroll keys(2) Enter key(3) Escape key

Menu icon, Settings

FunctionTo display and modify a number of settings (e.g. Time, Date, Date format, Language, units ...).

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ProcedureStarting 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:

• The screen shows a number of icons:

Icon FunctionNetwork settings

General settings

Regulation settings

Automatic restart after voltage failure settings

Access key

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Icon FunctionUser 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:

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 thesetting to be modified and press the Enter key. Following screen appears:

Screen for Ethernet settings

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Text on figure

(1) Ethernet(2) IP Address(3) Subnet mask(4) Gateway IP(5) Modify

Screen for CAN settings

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).• 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) 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 inthe 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 keyto confirm.

Regulation settings• Select the Regulation icon as described above and press the Enter button (2). Following screen

appears:

Text on figure

(1) Regulation(2) PDP extended cycle(3) Activated

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32 2920 1891 00

(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 PDPis low enough after regeneration and cooling. The extended cycle should only be activated when aworking PDP sensor is present.

• PDP switching temperature: the PDP should not increase to this setting before the vessels areswitched 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 switchingthreshold.

Automatic restart• Select the Automatic restart settings icon as described above and press the Enter button (2).

Following screen appears:

Text on figure

(1) Automatic restart (Not Activated)(2) Maximum power down time(3) Restart delay(4) 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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2920 1891 00 33

• A pop-up screen appears. Use the ↑ or ↓ key to select the required parameter and press the Enter keyto confirm.

Access keyDifferent security levels are programmed in the regulator (e.g. user, service technician, etc). This menuitem is used to change the security level. Scroll to the correct icon using the scroll key. Press the Enterbutton. Press the Enter button again to modify the security level. Press the Enter button again, a pop-upmenu appears. Use the scroll keys to enter the password of the new security level. Press the Enter key toconfirm the change.

User passwordIf 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 serverAll controllers have a built-in web server that allows direct connection to the company network or to adedicated PC via a local area network (LAN). This allows to consult certain data and settings via a PCinstead of the display of the controller.

Getting startedMake 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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34 2920 1891 00

• 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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2920 1891 00 35

• 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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36 2920 1891 00

• Adapt the network settings in the controller:• Go to Main Menu

• 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

• Adapt IP Address (1)• Adapt Gateway IP (2)• Adapt Subnet Mask (3)• Switch On (4) the Ethernet communication

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38 2920 1891 00

• 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 selectedoptions.

• Open your browser and type the IP address of the controller you want to view in your browser (in thisexample http://192.168.100.100). The interface opens:

Screen shot (example!)

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2920 1891 00 39

Navigation and options

• The banner shows the unit type and the language selector. In this example, three languages areavailable 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 settingsAll unit settings can be displayed or hidden. Put a check mark in front of each point of interest and it willbe 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 fromthe navigation menu.

Counters

Lists all current counter values from controller and unit.

Info status

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40 2920 1891 00

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 runninghours. It is also possible to show the current status of the service interval.

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4.9 Programmable settings

DescriptionThe regulating and safety devices are factory-adjusted to obtain optimum performance of the dryer. Noadjustments are required.

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42 2920 1891 00

5 Installation

5.1 Dimension drawings

PH 230 HE (in inch)

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PH 320 HE (in inch)

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44 2920 1891 00

PH 390 HE (in inch)

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PH 530 HE (in inch)

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46 2920 1891 00

PH 635 HE (in inch)

(1) Center of gravity(2) Dimension of inlet and outlet connection(3) Dryer inlet(4) Dryer outlet

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5.2 Installation proposal

Piping

Make sure that all pipes, filters, valves, etc. are clean and that they are installed correctlywith 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 CompressorAR Air receiverD DryerEIV External inlet valve (not shown)

To cut off the air supply towards the dryerEOV External outlet valve (not shown)

To cut off the air supply towards the air consumerBV Bypass valves (not shown on the drawings)

Together with the external inlet valve and the external outlet valve, the bypassvalves allow the dryer and the filters to be serviced while non-dried air flows throughthe bypass system.

1 The drain pipes to the drain collector must not dip into the water. For draining ofpure condensate water, install an oil/water separator.

2 Minimum free area to be reserved for the dryer installation

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48 2920 1891 00

3 Compressed air prefilter for general purpose filtration, particle removal down to 1micron, maximum oil carry-over 0.5 ppmThis filter provides extra protection of the dryer and extends the lifetime of the highefficiency filter cartridge (4).

4 High efficiency filter, particle removal down to 0.01 micron, maximum oil carry-over0.01 ppmTo remove remaining impurities.

5 Dust filter, particle removal down to 1 micronTo remove dust particles originating from the desiccant.

6 Water separator (optional)To prevent free water from entering the dryer.

General recommendationsKeep 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 withouthaving to disassemble the piping.

• Always install a high efficiency filter (4) at the inlet of the dryer. A prefilter (3) is recommended toextend the lifetime of the high efficiency filter. The drain pipes (1) of the water separator and thefilters must not dip into the water. Use a dust filter (5) at the outlet of the dryer. Should oil vapor andodors 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 beforethe dryer in order to prevent free water from entering the dryer, as free water can damage thedesiccant. If the condensate contains oil, install an oil/water separator for draining of pure condensatewater.

• It is recommended to install bypass pipes with ball valves over the filters in order to isolate the filtersduring 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 installedat 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 berecommended 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 sectionOperating instructions for the correct operation procedure.

5.3 Electrical connections

The electrical wiring must comply with the local regulations. The air dryer must be earthedand protected by fuses against short-circuiting.

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Connect the supply voltage to terminals 1X0 (L1 - L2) and 1X3 (earth). Install a power switch and fuses inthe supply line.

Maximum value fuse F1 and F2 is 10 A.

Reference Description(1) Customer's installation(2) Door(3) Cubicle

Before switching on the main power supply, check the voltage requirements in thetechnical specifications or on the dryer’s data plate.

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6 Operating instructions

Safety

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 desiccantwas 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 airconsumer may be opened even before the optimal Pressure Dew Point (PDP) isreached. 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 takea 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 isreached.It is therefore recommended to operate the dryer for a number of days with the outletvalve closed.

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Normal startIf 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 highair 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 Sonic nozzle for PH 230 HE8092 2617 45 Sonic nozzle for PH 320 HE8092 2617 52 Sonic nozzle for PH 390 HE8092 2617 60 Sonic nozzle for PH 530 HE8092 2617 78 Sonic nozzle for PH 635 HE

During operationAt 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 thedryer regenerate first. Check the PDP temperature regularly. If the PDP temperature is too high, let thedryer regenerate by closing the outlet valve.

The LED’s for PDP warning and PDP alarm are only functional if the dryer is equippedwith a PDP sensor!

StoppingTo stop the dryer, proceed as follows:

1. If installed and if necessary, open the bypass valves of the dryer so that the application will stillreceive compressed air.

2. Close the external inlet valve between the compressor and the dryer and the external outlet valvebetween 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 valveclosed to avoid moisture from entering the dryer.Under no circumstances must compressed air be allowed to flow through the dryerwhen the electrical power is switched off (regeneration of the desiccant material will nolonger be possible).

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7 Maintenance

7.1 Maintenance

General recommendations and precautionsThe dryer does not need any specific maintenance. Nevertheless, before carrying out any maintenance orcorrective 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 consumermay need other maintenance activities than those mentioned below (e.g. draining thefilters and replacing the filter elements). Refer to the appropriate manual for moreinformation.

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Preventive maintenance schedule

Frequency Service plan ActivityDaily Check the display panel for information and service messages.Every 6 months orevery 4000 hoursof operation (1)

A • Check for damaged wiring or loose connections.• Check for air leaks.• Replace the in- and outlet filter cartridges.• Replace the silencers.

Every year orevery 8000 hoursof operation (1)

B • Service plan A• Exchange the dew point sensor. The certificate is valid only one

year. Contact the supplier of your equipment for re-calibration ofthe PDP sensor.

Every five years orevery 40000 hours(1)

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 freewhen 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 bythe manufacturer.

Reset the service timer after a maintenance intervention.

All spare parts required for scheduled maintenance are included in specific service kits. Consult the spareparts 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.) mustbe disposed of in an environmentally friendly and safe manner, and in line with the local recommendationsand environmental legislation.

Refer to local regulations for directions on how to dispose of electronic components in an environmentallyfriendly manner.

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8 Problem solving

Overview

Symptom Possible cause Corrective actionPDP temperature too high The dryer has not had the time to

regenerate completely.Close the valve installed between thedryer and the application (if permitted)and have the desiccant regenerated.

The silencers are clogged. Replace the silencers.The drain is not working correctly. Check the drain valve of the filter.The air flow through the dryer is toohigh.

Check for correct application.

The outlet pressure is too low. Check whether the compressor providesenough air for the application.

The inlet temperature is too high. Check the compressor aftercooler.Free water in the dryer. Check the water separator (WSD) and

the drain valve of the filters upstream ofthe dryer.

The dryer produces a lotof noise.

Check the silencer and its fixation tothe unit.

Replace the silencer if necessary orcorrect its fixation.

Insufficient air leaves thedryer.

Too much purge air escapes. Check the condition of the solenoid valveand replace it if necessary.

LED Service warning /Service alarm is alight.

Both LED’s are timer-controlled andwill light up after a certain time(orange LED (warning) after 7750hours, red LED (alarm) after 8000hours).

Contact your supplier for maintenance.Reset the timer after maintenance.

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9 Technical data

9.1 Reference conditions

Condition Unit 160 psi 210 psiEffective inlet pressure of compressed air psi 101.5 181.3Inlet temperature of compressed air ˚F 95 95Relative humidity of the air at inlet % 100 100Pressure dew point (PDP), standard version ˚F -40 -40Pressure dew point (PDP), optional version ˚F -100 -100

9.2 Limitations for operation

Limitation Unit 160 psi 210 psiMax. effective inlet pressure of compressed air psi 160 210Min. effective inlet pressure of compressed air psi 58.0 160Maximum ambient air temperature ˚F 104 104Minimum ambient air temperature ˚F 35.6 35.6Max. inlet temperature of compressed air ˚F 122 122Min. inlet temperature of compressed air ˚F 35.6 35.6

9.3 Specific data

Standard version (PDP -40 ˚F) - 160 psiDesiccant type: activated alumina (Al2O3)

PH 230HE

PH 320HE

PH 390HE

PH 530HE

PH 635HE

Max. volume flow at dryerinlet

cfm 227 318 392 530 636

Total amount of desiccant lb 309 375 441 573 661Mass lb 750 915 981 1223 1433Time of half a cycle s 180 180 180 180 180Regeneration time s 145 145 145 145 145Installed power W 63 63 63 63 63

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Standard version (PDP -40 ˚F) - 232 psiDesiccant type: activated alumina (Al2O3 )

PH 230HE

PH 320HE

PH 390HE

PH 530HE

PH 635HE


cfm 271 381 466 636 763

Regeneration air consumptionaverage at max. inlet flow

% 15 15 15 15 15


Special version (PDP -100 ˚F) - 160 psiDesiccant type: molecular sieves

PH 230HE

PH 320HE

PH 390HE

PH 530HE

PH 635HE


cfm 182 254 313 424 509


% 23 23 23 23 23


Special version (PDP -100 ˚F) - 232 psiDesiccant type: molecular sieves

PH 230HE

PH 320HE

PH 390HE

PH 530HE

PH 635HE


cfm 218 305 371 509 614


% 18 18 18 18 18


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Recommended filter size

High efficiencycoalescing filter

Particulate filter General purposecoalescing filter

PH 230 HE PF 6 C HE PF 6 S HE PF 6 G HEPH 320 HE PF 7 C HE PF 7 S HE PF 7 G HEPH 390 HE PF 8 C HE PF 8 S HE PF 8 G HEPH 530 HE PF 9 C HE PF 9 S HE PF 9 G HEPH 635 HE PF 9 C HE PF 9 S HE PF 9 G HE

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10 Instructions for Use

Instructions

Description1 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 permanentlyexceed the maximum allowable operating pressure of the vessel.

6 Original bolts have to be used after opening for inspection. The maximum torque has to betaken into consideration (see table below).

Maximum bolt torque

Thread size Tightening torque(Nm)

Allowed deviation(Nm)

M3 1 0.3M4 2.4 0.6M5 5 1.2M6 8 2.1M8 20 5M10 41 10M12 73 18M14 115 29M16 185 46M18 238 60M20 335 84

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11 Guidelines for inspection

GuidelinesOn the Declaration of Conformity / Declaration by the Manufacturer, the harmonized and/or otherstandards 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 issupplied with this air dryer.

Local legal requirements and/or use outside the limits and/or conditions as specified by the Manufacturermay require other inspection periods.

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