Puregas P550W Series User Manual
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Puregas P550W Series User Manual

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P550W Series Air Dryers
User's Guide
Models covered:
P550W
P550WH
P550WLP
P552W
P552WH
P552WLP
P011658 – Rev. P

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Summary of Contents for Puregas P550W Series

  • Page 1 P550W Series Air Dryers User’s Guide Models covered: P550W P550WH P550WLP P552W P552WH P552WLP P011658 – Rev. P...

  • Page 3: Welcome & Congratulations

    1. Welcome & Congratulations Congratulations on your purchase of a new PUREGAS P550W Series Air Dryer! We here at PUREGAS are very proud of our products and we are committed to providing you with the best value and service possible.

  • Page 4: Table Of Contents

    8.19 Using the Firmware Screen ..... 53 5.2 Key Features ..........8 8.20 Connecting via SNMP ......55 5.3 P550W Series Air Dryer Models ....8 5.4 Technical Specifications ......9 9. Testing Your Dryer ........56 5.5 Dryer Function Overview ......10 9.1 Safety &...
  • Page 5 P550W Series Air Dryers User’s Guide PUREGAS, LLC 10.2 Six Month Maintenance ......76 13.13 Inconsistent Heatless Dryer Cycling ..90 13.14 Compressor Doesn’t Operate ....90 10.3 8,000 Hour Maintenance ......77 13.15 Compressor Won’t Build Pressure ..91 11.

  • Page 6: Safety & Warning Information

    P550W Series Air Dryers User’s Guide PUREGAS, LLC 4. Safety & Warning Information This section contains general information about safety and warning points to consider and adhere to during installation, operation, and maintenance of your air Dryer. PLEASE READ THIS SECTION BEFORE PERFORMING ANY OPERATION OR PROCEDURE ON YOUR AIR DRYER.
  • Page 7 Dryer section will ensure optimal performance over the lifecycle of your air Dryer. IMPORTANT! Performing procedures not described in this User’s Guide or installing components not supplied by PUREGAS is NOT RECOMMENDED AND MAY VOID THE WARRANTY. P011658 – Rev. P Page 7 of 99...

  • Page 8: Overview & Specifications

    5. Overview & Specifications 5.1 Product Description The P550W Series Air Dryers from PUREGAS are designed to intake wet ambient air and remove the moisture for delivery to applications requiring a constant, on- demand source of dry, pressurized air. This process is fully automatic and will remain consistent with minimal required periodic maintenance.

  • Page 9: Technical Specifications

    P550W Series Air Dryers User’s Guide PUREGAS, LLC 5.4 Technical Specifications P550W P550WH P550WLP P552W P552WH P552WLP Output Normal: Up to 350 SCFD continuous Capacity Maximum: 550 SCFD emergency Power 110 - 125 VAC, 208 - 253 VAC, 1 Phase, Requirements 50 / 60 Hz, 7.0 Amps...

  • Page 10: Dryer Function Overview

    P550W Series Air Dryers User’s Guide PUREGAS, LLC 5.5 Dryer Function Overview Component Description Compressor Compresses drawn in ambient air. Heatless Dryer Removes moisture from compressed air. Unloader Valve Relieves excess Compressor head pressure. Capacity Control Valve Regulates System Pressure and prevents air from bleeding back through the Heatless Dryer.

  • Page 11: Installing Your Dryer

    P550W Series Air Dryers User’s Guide PUREGAS, LLC 6. Installing Your Dryer 6.1 Safety & Warning Information WARNING! Internal surfaces may be hot. Use care when coming into contact with internal components as there is a potential for some of these components to become hot when in operation or standby.

  • Page 12: Before You Begin

    PUREGAS, LLC IMPORTANT! Performing procedures not described in this User’s Guide or installing components not supplied by PUREGAS is NOT RECOMMENDED AND MAY VOID THE WARRANTY. 6.2 Before You Begin 6.2.1 Carefully inspect the unit, including the shipping box as well as the air Dryer, for ANY DAMAGE CAUSED BY SHIPPING.

  • Page 13: Included Contents

    P550W Series Air Dryers User’s Guide PUREGAS, LLC 6.3 Included Contents (1) P550W Series Air Dryer (1) Installation Guide (not shown) Package located inside the Dryer: (1) 120 VAC Power Cord (P550W, P550WH, P550WLP) (1) 220 VAC Power Cord (P552W, P552WH, P552WLP)

  • Page 14: Installation Steps

    P550W Series Air Dryers User’s Guide PUREGAS, LLC 6.5 Installation Steps 6.5.1 Using a box cutter remove the Dryer from box and all shipping materials. NOTE: If ANY SHIPPING DAMAGE is detected, file a claim with the shipping company prior to continuing the installation procedures.
  • Page 15 P550W Series Air Dryers User’s Guide PUREGAS, LLC 6.5.4 Remove the ship-loose contents package. For SINGLE Outlet dryers: 6.5.5 Remove the Plug from the Outlet Port by pressing the ferrule down then pulling the plug upward. 6.5.6 Install the Plug into the...
  • Page 16 P550W Series Air Dryers User’s Guide PUREGAS, LLC 6.5.9 Place the Dryer at the desired operating location: • Place the Dryer on a leveled surface • For rack install use Universal Rack Mounting Kit P011674 (section 11.4 ) • For wall install use Wall Mounting Kit P011773 (section 11.4 ) 6.5.10 Verify that the Dryer is...
  • Page 17 P550W Series Air Dryers User’s Guide PUREGAS, LLC 6.5.13 Power the Dryer ON. NOTE: The compressor and heatless Dryer will start, creating air flow through the Outlet Port. For 4-Port Outlet dryers: 6.5.14 Open the first Outlet Port slightly to create a small amount of air flow.
  • Page 18 P550W Series Air Dryers User’s Guide PUREGAS, LLC 6.5.15.2 Turn the knob until the reading on the pressure gauge is 50 PSI. 6.5.15.3 Push the knob in to lock. 6.5.16 Let the Dryer run until the Humidity drops below 2%.
  • Page 19 P550W Series Air Dryers User’s Guide PUREGAS, LLC For SINGLE Outlet dryers: 6.5.18 Remove the Precision Bleed Orifice fitting from the Outlet Port by pressing the ferrule down then pulling the fitting upward. NOTE: Save this fitting for use in low flow applications.
  • Page 20 P550W Series Air Dryers User’s Guide PUREGAS, LLC NOTE: For all dryers with minimal FLOW: Install the included Precision Bleed Orifice fitting to maintain a constant air flow. 6.5.20 Power the Dryer ON. 6.5.21 Set the Static Pressure: 6.5.21.1 Pull Static Pressure Regulator knob out.
  • Page 21 P550W Series Air Dryers User’s Guide PUREGAS, LLC 6.5.22 Set the Outlet Pressure: 6.5.22.1 Pull the Outlet Pressure Regulator knob out (or loosen the retaining nut – LP Models). 6.5.22.2 Turn knob until Outlet Pressure (OUTP) reading is at the desired setting.
  • Page 22 P550W Series Air Dryers User’s Guide PUREGAS, LLC 6.5.23 Check for air leaks: NOTE: This is a general procedure that can be applied to any fitting or hose that has air pressure in it. DO NOT SOAP TEST THE HUMIDITY SENSOR FITTING.

  • Page 23: Installation Checklist

     No alarms are present on the Display Panel. 7. Registering Your Dryer Please take a moment to register your PUREGAS P550W Series Air Dryer. Registering is necessary to activate the Limited Warranty on your product. Once you register, you are eligible to receive free technical support, as well as updates concerning your PUREGAS products.

  • Page 24: Operating Your Dryer

    IMPORTANT! Performing procedures not described in this User’s Guide or installing components not supplied by PUREGAS is NOT RECOMMENDED AND MAY VOID THE WARRANTY. P011658 – Rev. P Page 24 of 99...

  • Page 25: Connecting Air Supply Lines To The Dryer

    P550W Series Air Dryers User’s Guide PUREGAS, LLC 8.2 Connecting Air Supply Lines to the Dryer For SINGLE Outlet dryers: 8.2.1 Connect a 3/8” air supply line to the Outlet Port. For 4-Port Outlet dryers: 8.2.2 Connect up to four (4) 3/8”air supply lines to the...

  • Page 26: Depressurizing The Dryer

    P550W Series Air Dryers User’s Guide PUREGAS, LLC 8.3 Depressurizing the Dryer CAUTION: Be careful when removing air hose. System is pressurized. 8.3.1 Disconnect air hose from the quick disconnect connector located on top of Outlet Pressure Regulator. 8.3.2 To prevent pressure from building back up, power the Dryer OFF (See section 8.4 ).

  • Page 27: Using The Front Panel Display

    P550W Series Air Dryers User’s Guide PUREGAS, LLC 8.5 Using the Front Panel Display CAUTION! The Display Screen is covered by a clear protective layer that guards against Electrostatic Discharge (ESD). DO NOT REMOVE THIS LAYER. 8.5.1 ALARM LED – Indicates an alarm is present.
  • Page 28 P550W Series Air Dryers User’s Guide PUREGAS, LLC 8.5.5 Display Screen - Shows the current Dryer readings. Will cycle between the following information screens (unless the HOLD button has been pressed): 8.5.5.1 Tank Screen TANK – Air Tank pressure - fluctuates between 20 – 50 PSI.

  • Page 29: Identifying Dryer Alarms

    P550W Series Air Dryers User’s Guide PUREGAS, LLC 8.6 Identifying Dryer Alarms 8.6.1 High Outlet Pressure Alarm - Occurs when the Outlet Pressure (OUTP) rises above the alarm set point for more than one (1) minute. (Default setting is 10.0 PSI for Standard models / 7.50 PSI for LP models) See section 13.5 for troubleshooting information.
  • Page 30 P550W Series Air Dryers User’s Guide PUREGAS, LLC 8.6.4 High Cabinet Temperature Alarm - Occurs when the temperature in the cabinet rises above 120°F for more than ten (10) seconds. If this alarm is present for three (3) minutes or more, the Compressor will SHUTDOWN to protect against damage due to overheating.

  • Page 31: Adjusting & Resetting Dryer Set Points

    P550W Series Air Dryers User’s Guide PUREGAS, LLC 8.7 Adjusting & Resetting Dryer Set Points Dryer Set Points are simply limits programmed for a specific reading. Once this limit is reached (or exceeded) this results in an alarm for that reading. Each of these set points is factory programmed with a default value based on typical usage of the air Dryer.
  • Page 32 P550W Series Air Dryers User’s Guide PUREGAS, LLC 8.7.2 High Outlet Pressure Alarm Set Point (default setting is 10.0 PSI for Standard models / 7.50 PSI for LP models) – 8.7.2.1 Press the Right () Arrow Button to access the Change Value Screen.
  • Page 33 P550W Series Air Dryers User’s Guide PUREGAS, LLC 8.7.3 Low Outlet Pressure Alarm Set Point (default setting is 2.0 PSI for Standard models / 0.30 PSI for LP models) – 8.7.3.1 Press the Right () Arrow Button to access the Change Value Screen.
  • Page 34 P550W Series Air Dryers User’s Guide PUREGAS, LLC 8.7.4 High Humidity Alarm Set Point (default setting is 10.0%) – 8.7.4.1 Press the Right () Arrow Button to access the Change Value Screen. 8.7.4.2 Press the Right () & Left () Arrow Buttons to move the underscore beneath the digit to change.
  • Page 35 P550W Series Air Dryers User’s Guide PUREGAS, LLC 8.7.5 High Compressor Last Run Time Alarm Set Point (default setting is 3:00 minutes) – 8.7.5.1 Press the Right () Arrow Button to access the Change Value Screen. 8.7.5.2 Press the Right () &...
  • Page 36 P550W Series Air Dryers User’s Guide PUREGAS, LLC 8.7.6 Compressor Total Time Reset – The Total Time (TTL TIME) is the time the compressor runs measured in hours since startup or the last time the compressor time counter was reset.
  • Page 37 P550W Series Air Dryers User’s Guide PUREGAS, LLC 8.7.7 Reset to Factory Values – 8.7.7.1 Press the Left () & Right () Arrow Buttons at the same time. 8.7.7.2 Press the Right () Arrow Button until the underscore appears under the correct setting (YES or NO).
  • Page 38 P550W Series Air Dryers User’s Guide PUREGAS, LLC 8.7.9 Startup Delay Set Point (default setting is 0 sec) – The Startup Delay keeps the compressor from turning on immediately when the dryer is powered on for up to 10 seconds. This allows multiple dryers to power on in separate intervals in case of a power loss.

  • Page 39: Open Panel

    P550W Series Air Dryers User’s Guide PUREGAS, LLC 8.8 Open Panel 8.8.1 Open panel latches and remove the front panel. 8.9 Setting the System Pressure With Compressor running: 8.9.1 Open Panel (see section 8.8 ). 8.9.2 Pull the Capacity Control Valve knob out.

  • Page 40: Setting The Static Pressure

    P550W Series Air Dryers User’s Guide PUREGAS, LLC 8.10 Setting the Static Pressure 8.10.1 Open Panel (see section 8.8 ). 8.10.2 Pull the Static Pressure Regulator knob out. 8.10.3 Turn knob until the reading on the Pressure Gauge is17 PSI.

  • Page 41: Terminals

    P550W Series Air Dryers User’s Guide PUREGAS, LLC 8.11.3 Turn knob until Outlet Pressure (OUTP) reading is at the desired setting. 8.11.4 Push knob in to lock (or tighten the retaining nut – LP Models). 8.11.5 Close Panel. 8.12 Connecting to Common Alarm Terminals 8.12.1 Open Panel (see section 8.8 ).

  • Page 42: Connecting To Power Fail Alarm Terminals

    P550W Series Air Dryers User’s Guide PUREGAS, LLC 8.13 Connecting to Power Fail Alarm Terminals 8.13.1 Open Panel (see section 8.8 ). 8.13.2 Locate the external Power Fail pins on the Control Board. 8.13.3 Wire the Power Fail Alarm wire pair to the Control Board as required: •...

  • Page 43: Connecting Via Web Browser

    192.168.1.101. This will make the Laptop/PC compatible with the Air Dryer. • Use Internet Explorer (6.0 or newer) or Mozilla Firefox Web Browser. 8.14.1 Type the IP Address of the P550W Series air Dryer in the Address text box of the web browser.
  • Page 44 Keyword can be made in this screen. • Event Screen - Displays all events such as alarms, changes made, and alarm resets registered by the P550W Series Air Dryer. This screen is informational only. • Alarm Screen - Displays all the Alarms registered by the P550W Series Air Dryer.

  • Page 45: Using The Status Screen

    P550W Series Air Dryers User’s Guide PUREGAS, LLC 8.15 Using the Status Screen Displays the readings and alarms monitored in the P550W Series Air Dryer. Provides remote ALARM RESET. • Readings are displayed in BLACK unless an alarm is present.
  • Page 46 P550W Series Air Dryers User’s Guide PUREGAS, LLC 8.15.1 Resetting an Alarm 8.15.1.1 Click on the ALARM RESET Button to remotely reset Air Dryer alarms displayed on Status Screen. 8.15.1.2 Enter Keyword (default is 123456) 8.15.1.3 Click on SUBMIT Button when done.
  • Page 47 P550W Series Air Dryers User’s Guide PUREGAS, LLC 8.15.2 Resetting Compressor Total Run Time 8.15.2.1 Click on the RESET TOTAL RUN TIME Button to remotely reset Compressor Total Run Time displayed on Status Screen. 8.15.2.2 Enter Keyword (default is 123456) 8.15.2.3 Click on SUBMIT Button when done.

  • Page 48: Using The Config Screen

    P550W Series Air Dryers User’s Guide PUREGAS, LLC 8.16 Using the Config Screen All configuration of Set Points, Setups, and Keyword can be made in this screen. NOTE: Reference Appendix section 14.2 for Limits, Defaults, and Formats. • Values in BLUE represent the current setting.
  • Page 49 P550W Series Air Dryers User’s Guide PUREGAS, LLC 8.16.1 Changing a Set Point or Setup value: 8.16.1.1 Click on the value to change. 8.16.1.2 Type in the new value. 8.16.1.3 Click the ACCEPT Button when done. 8.16.1.4 Enter Keyword (default is 123456) 8.16.1.5 Click on SUBMIT Button when done.
  • Page 50 P550W Series Air Dryers User’s Guide PUREGAS, LLC 8.16.2 Changing the Keyword 8.16.2.1 Click on CHANGE KEYWORD Button to change the keyword. 8.16.2.2 Type the Old Keyword. 8.16.2.3 Type the New Keyword. 8.16.2.4 Type the Confirm New Keyword. 8.16.2.5 Click on SUBMIT Button to confirm. This will lock in the new setting value.

  • Page 51: Using The Event Screen

    8.17 Using the Event Screen Displays all events such as alarms, changes made, and alarm resets registered by the P550W Series Air Dryers. This screen is informational only. • Click on the column headings to sort data according to that column.

  • Page 52: Using The Alarm Screen

    P550W Series Air Dryers User’s Guide PUREGAS, LLC 8.18 Using the Alarm Screen Displays all the Alarms registered by the P550W Series Air Dryers. This screen is informational only. • Click on the column headings to sort data according to that column.

  • Page 53: Using The Firmware Screen

    P550W Series Air Dryers User’s Guide PUREGAS, LLC 8.19 Using the Firmware Screen Displays the current firmware version and date of the P550W Series Air Dryers. • Current Version: Displays the current firmware version of the P550W Air Dryer. • New Version File: Displays the new location and new firmware version chosen.
  • Page 54 P550W Series Air Dryers User’s Guide PUREGAS, LLC 8.19.1 Updating the Firmware: 8.19.1.1 Click on BROWSE Button to locate the firmware file. 8.19.1.2 Navigate and Select the correct .bin file. Press the OK Button. 8.19.1.3 Click the ACCEPT Button when done 8.19.1.4 Enter Keyword (default is 123456)

  • Page 55: Connecting Via Snmp

    This software requires a SNMP Definition & Configuration File (MIB file) in order to properly communicate with the Air Dryer. The files for the P550W Series Air Dryers can be downloaded from our website (Puregas.com) under the Product Support section SNMP Files link. It is necessary to import this file into your SNMP operating software.

  • Page 56: Testing Your Dryer

    P550W Series Air Dryers User’s Guide PUREGAS, LLC 9. Testing Your Dryer 9.1 Safety & Warning Information WARNING! Extreme care should be exercised to avoid contact with live electrical circuits. Many procedures performed during installation, operation, testing, and maintenance of this air Dryer require the equipment to be running, creating a situation for potential electrical shock.

  • Page 57: Measuring Compressor Amp Draw

    P550W Series Air Dryers User’s Guide PUREGAS, LLC 9.2 Measuring Compressor Amp Draw WARNING! Internal surfaces may be hot. Use care when coming into contact with internal components as there is a potential for some these components to become hot when in operation or standby.

  • Page 58: Measuring Compressor Voltage

    P550W Series Air Dryers User’s Guide PUREGAS, LLC 9.3 Measuring Compressor Voltage WARNING! Extreme care should be exercised to avoid contact with live electrical circuits. It is highly recommended that you remove all jewelry before performing any procedures. 9.3.1 Open Panel (see section 8.8 ).
  • Page 59 P550W Series Air Dryers User’s Guide PUREGAS, LLC With the Compressor NOT running: 9.3.5 Use a Voltmeter to measure across the board terminals were wires #5 and #6 are connected. The voltage should measure 0 VAC (10%) 9.3.6 Replace the clear plastic terminal block cover.

  • Page 60: Measuring Incoming Voltage

    P550W Series Air Dryers User’s Guide PUREGAS, LLC 9.4 Measuring Incoming Voltage WARNING! Extreme care should be exercised to avoid contact with live electrical circuits. It is highly recommended that you remove all jewelry before performing any procedures. 9.4.1 Open Panel (see section 8.8 ).

  • Page 61: Measuring Voltage From Ac Step-Down Transformer

    P550W Series Air Dryers User’s Guide PUREGAS, LLC 9.5 Measuring Voltage from AC Step-Down Transformer WARNING! Extreme care should be exercised to avoid contact with live electrical circuits. It is highly recommended that you remove all jewelry before performing any procedures.

  • Page 62: Testing Consistent Heatless Dryer Cycling

    P550W Series Air Dryers User’s Guide PUREGAS, LLC 9.6 Testing Consistent Heatless Dryer Cycling WARNING! Internal surfaces may be hot. Use care when coming into contact with internal components as there is a potential for some of these components to become hot when in operation or standby.
  • Page 63 P550W Series Air Dryers User’s Guide PUREGAS, LLC 9.6.4 Place your hand beneath the purge solenoids to feel for purging air. Air should: • Purge from Tower 1 side • Purge from Tower 2 side 30 Seconds later • Purge from Tower 1 side 30 Seconds later •...

  • Page 64: Testing Unloader Valve

    P550W Series Air Dryers User’s Guide PUREGAS, LLC 9.7 Testing Unloader Valve With the Compressor running: 9.7.1 Locate the Unloader Valve on the right side of the heatless Dryer. 9.7.2 Place your hand over the Unloader Valve to feel for air flow.

  • Page 65: Measuring Heatless Dryer Solenoid Voltage

    P550W Series Air Dryers User’s Guide PUREGAS, LLC 9.8 Measuring Heatless Dryer Solenoid Voltage With the Compressor running: 9.8.1 Locate the Heatless Dryer Cycle Timer. The timer has three (3) sets of terminals (from left-to-right): “VALVE” – Left solenoid “IN” – Incoming power “VALVE”...

  • Page 66: Testing Air Dryer Fan

    P550W Series Air Dryers User’s Guide PUREGAS, LLC 9.9 Testing Air Dryer Fan NOTE: To test the fan, the cabinet temperature must be above 90 F. 9.9.1 Place your hand outside the Dryer to feel for air being blown outwards.
  • Page 67 P550W Series Air Dryers User’s Guide PUREGAS, LLC With Compressor running: 9.10.2 Verify the compressor shuts down when the tank pressure (TANK) reaches 50.0 PSI. If the tank pressure (TANK) fails to reach 50 PSI, see section 13.15 for troubleshooting information.

  • Page 68: Time Alarm

    P550W Series Air Dryers User’s Guide PUREGAS, LLC 9.11 Testing High Compressor Last Run Time Alarm CAUTION: Be careful when removing Air hose. System is pressurized. NOTE: For this test, allow the Display Screen to cycle through the information screens.

  • Page 69: Testing Humidity Alarm And System Shutdown

    P550W Series Air Dryers User’s Guide PUREGAS, LLC 9.12 Testing Humidity Alarm and System Shutdown CAUTION: Be careful when removing Air hose. System is pressurized. 9.12.1 Power the air Dryer OFF. 9.12.2 Depressurize air Dryer (see section 8.3.1 ) 9.12.3 Unscrew and remove the Humidity Sensor from the Humidity Block.
  • Page 70 P550W Series Air Dryers User’s Guide PUREGAS, LLC Allow the Humidity reading to rise over 10.0%. 9.12.5 After three (3) minutes, verify that a Humidity Alarm appears and the Dryer goes into SHUTDOWN mode. 9.12.6 Replace the Humidity Sensor into the Humidity Block.

  • Page 71: Testing High Outlet Pressure Alarm

    P550W Series Air Dryers User’s Guide PUREGAS, LLC 9.13 Testing High Outlet Pressure Alarm 9.13.1 Make a note of the current Outlet Pressure (OUTP) reading. 9.13.2 Pull the Outlet Pressure Regulator knob out (or loosen the retaining nut – LP Models).

  • Page 72: Testing Low Outlet Pressure Alarm

    P550W Series Air Dryers User’s Guide PUREGAS, LLC 9.14 Testing Low Outlet Pressure Alarm 9.14.1 Make a note of the current Outlet Pressure (OUTP) reading. 9.14.2 Pull the Outlet Pressure Regulator knob out (or loosen the retaining nut – LP Models).

  • Page 73: Testing Air Fittings & Hoses For Leaks

    P550W Series Air Dryers User’s Guide PUREGAS, LLC 9.15 Testing Air Fittings & Hoses for Leaks NOTE: This is a general procedure that can be applied to any fitting or hose that has air pressure in it. DO NOT SOAP TEST THE HUMIDITY SENSOR FITTING.

  • Page 74: Maintaining Your Dryer

    P550W Series Air Dryers User’s Guide PUREGAS, LLC 10. Maintaining Your Dryer In order to ensure that your P550W Series Air Dryer continues to operate efficiently and reliably, PUREGAS recommends performing the following maintenance procedures at the specified Six Month and 8,000 Hour intervals.
  • Page 75 Your Dryer section will ensure optimal performance over the lifecycle of your air Dryer. IMPORTANT! Performing procedures not described in this User’s Guide or installing components not supplied by PUREGAS is NOT RECOMMENDED AND MAY VOID THE WARRANTY. IMPORTANT! After performing any maintenance, always soap test pressure fittings to check for air leaks.

  • Page 76: Six Month Maintenance

    P550W Series Air Dryers User’s Guide PUREGAS, LLC 10.2 Six Month Maintenance MODEL: LOCATION NAME: SERIAL NUMBER: ADDRESS: DATE INSTALLED: Maintenance Interval (Months) Procedure Section      Install Six Month Maintenance Kit 11.4 Read & Record Flow Rate (FLOW) 8.5.5.2...

  • Page 77: Hour Maintenance

    P550W Series Air Dryers User’s Guide PUREGAS, LLC 10.3 8,000 Hour Maintenance Under typical operating conditions: 8,000 hours of run time will occur between one (1) and two (2) years of use. This will be identified by a TTL TIME Alarm on the display.

  • Page 78: Replacement Parts & Accessories

    P550W Series Air Dryers User’s Guide PUREGAS, LLC 11. Replacement Parts & Accessories 11.1 Dryer Parts Recommend Description Part Number Quantity Spare Power Switch M038428 P4080 Static Pressure Regulator P010279 Air Tank Control Board - Standard Pressure P011816  (1)

  • Page 79: Dryer Parts Cont

    P550W Series Air Dryers User’s Guide PUREGAS, LLC 11.2 Dryer Parts cont. Recommend Description Part Number Quantity Spare Precision Bleed Orifice Fitting P013349 Outlet Pressure Regulator - Standard Pressure P010279 Low Pressure P012316 Flow Block In 6-Month Maintenance Kit. See section Humidity Sensor 11.4 for detail.

  • Page 80: Heatless Dryer Assembly Parts

    P550W Series Air Dryers User’s Guide PUREGAS, LLC 11.3 Heatless Dryer Assembly Parts Recommend Description Part Number Quantity Spare Heatless Dryer P011738 Desiccant Chamber P2004036 Cycle Timer P010530F1 Unloader Valve P011839 In 8,000 Hour Maintenance Kit. See section Solenoid Valve 11.4 for detail.

  • Page 81: Accessories For Your Dryer

    P550W Series Air Dryers User’s Guide PUREGAS, LLC 11.4 Accessories for Your Dryer Recommend Description Part Number Spare Kits for units with “Type A” Compressor (See detail comparison on next page to determine Compressor Type) Six Month Maintenance Kit  (2)

  • Page 82: Ordering Parts From Puregas

    User’s Guide and will not be covered. Please refer to the information included with the specific replacement part for this instruction. Once you have identified your required parts and accessories, contact the PUREGAS Inside Sales / Service department to order: (800) 521-5351 (option 2) Fax –...

  • Page 83: Service & Repair

    P550W Series Air Dryers User’s Guide PUREGAS, LLC 12. Service & Repair Only PUREGAS can offer factory direct rebuilds backed by a 6 month factory warranty. • 2 week turnaround time • Estimates available upon request • Minimum service charge fee applies 12.1 Services Offered...

  • Page 84: Troubleshooting Your Dryer

    PLEASE READ THIS SECTION FIRST. It is important that you use the following sections in order to diagnose and attempt to fix the problem with your air Dryer before placing a call to PUREGAS Technical Support. This troubleshooting guide is intended to simplify the isolation of problems, present possible causes, provide test procedures for verification, and suggest corrective actions to restore the air Dryer back to normal operation.

  • Page 85: Air Dryer Won't Power On

    DC voltage. This will render the Humidity Sensor defective. IMPORTANT! Performing procedures not described in this User’s Guide or installing components not supplied by PUREGAS is NOT RECOMMENDED AND MAY VOID THE WARRANTY. 13.3 Air Dryer Won’t Power ON...

  • Page 86: Display Screen Not Functioning

    P550W Series Air Dryers User’s Guide PUREGAS, LLC 13.4 Display Screen Not Functioning Possible Cause Check Corrective Action Dryer experienced a Power the air Dryer power spike OFF for 15+ seconds. Power the air Dryer ON. Ribbon cable Verify ribbon cable...

  • Page 87: Low Outlet Pressure Alarm

    P550W Series Air Dryers User’s Guide PUREGAS, LLC 13.7 Low Outlet Pressure Alarm Possible Cause Check Corrective Action Outlet Pressure set too Verify Outlet Pressure Adjust Outlet Pressure (OUTP) reading Regulator (section 8.11 ) (section 8.5.5.1 ) High Flow condition...

  • Page 88: High Humidity

    P550W Series Air Dryers User’s Guide PUREGAS, LLC 13.9 High Humidity CAUTION! Do not test the Humidity Sensor with an ohm meter or apply any DC voltage. This will render the Humidity Sensor defective. Possible Cause Check Corrective Action Low System Pressure...

  • Page 89: Shutdown

    P550W Series Air Dryers User’s Guide PUREGAS, LLC 13.10 Can’t Create a High Humidity Alarm / Shutdown These troubleshooting steps assume that the Humidity Element is removed from the Humidity Block during the Testing Humidity Alarm and System Shutdown (section 9.12 ) procedures.

  • Page 90: Inconsistent Heatless Dryer Cycling

    P550W Series Air Dryers User’s Guide PUREGAS, LLC 13.13 Inconsistent Heatless Dryer Cycling Possible Cause Check Corrective Action Defective Solenoid Measure voltage going If 53 VDC IS present, Valve to the Heatless Dryer replace Solenoid Valves Solenoid Valves included in the 8,000 (section 9.8 )

  • Page 91: Compressor Won't Build Pressure

    P550W Series Air Dryers User’s Guide PUREGAS, LLC 13.15 Compressor Won’t Build Pressure Possible Cause Check Corrective Action Low System Pressure Verify System Pressure Adjust System Pressure (section 8.9 ) to 50 PSI, ± 2 PSI. (section 8.9 ) Defective Unloader...

  • Page 92: High Compressor Last Run Time Alarm

    P550W Series Air Dryers User’s Guide PUREGAS, LLC 13.17 High Compressor Last Run Time Alarm Possible Cause Check Corrective Action Low System Pressure Verify System Pressure Adjust System Pressure (section 8.9 ) to 50 PSI, ± 2 PSI. (section 8.9 )

  • Page 93: Compressor Rapid On/Off Cycling

    11.1 ) 13.20 Contacting PUREGAS Technical Support Please read the Before You Call PUREGAS section (13.1 ) Once you have exhausted all of the potential problems and solutions covered in the Troubleshooting Your Dryer section, and you still require further assistance to correct...

  • Page 94: Appendix

    P550W Series Air Dryers User’s Guide PUREGAS, LLC 14. Appendix 14.1 Wiring Diagram P011658 – Rev. P Page 94 of 99...

  • Page 95: Set Point Limits And Defaults

    P550W Series Air Dryers User’s Guide PUREGAS, LLC 14.2 Set Point Limits and Defaults 14.2.1 System Adjustments Minimum Maximum Default Unit of Description Value Value Value Measurement System Pressure Static Pressure Outlet Pressure 15.0 (LP UNITS) (0.30) (7.50) Alarm Delay...

  • Page 96: Snmp Parameters

    P550W Series Air Dryers User’s Guide PUREGAS, LLC 14.3 SNMP Parameters Device Configuration Information Device ID Alphanumeric (Defined by Customer) Device Model Alphanumeric (Factory Preset) Device Firmware Version Numeric (Factory Preset) Current Date/Time Numeric (mm/dd/yy hh:mm) IP Address Numeric (xxx.xxx.xxx.xxx) Subnet Mask Numeric (xxx.xxx.xxx.xxx)

  • Page 97: Limited Warranty Agreement

    This warranty shall not apply to any PUREGAS product which shall have been repaired or altered in any way by anyone other than PUREGAS or authorized personnel so as to affect, in our judgment, its proper functioning or reliability, neither will it apply to any product which has been subject to misuse, negligence, or accident.

  • Page 98: Contacting Puregas

    P550W Series Air Dryers User’s Guide PUREGAS, LLC 16. Contacting PUREGAS 16.1 General PUREGAS, LLC 226A Commerce Street Broomfield, Colorado 80020 (800) 521-5351 (303) 427-3700 Fax – (303) 657-2233 info@puregas.com www.puregas.com 16.2 Sales (800) 521-5351 (option 2) Fax – (303) 657-2205 sales@puregas.com...

  • Page 99: Notes

    P550W Series Air Dryers User’s Guide PUREGAS, LLC 17. Notes ________________________________________________________________________ ________________________________________________________________________ ________________________________________________________________________ ________________________________________________________________________ ________________________________________________________________________ ________________________________________________________________________ ________________________________________________________________________ ________________________________________________________________________ ________________________________________________________________________ ________________________________________________________________________ ________________________________________________________________________ ________________________________________________________________________ ________________________________________________________________________ ________________________________________________________________________ ________________________________________________________________________ ________________________________________________________________________ ________________________________________________________________________ ________________________________________________________________________ ________________________________________________________________________ ________________________________________________________________________ ________________________________________________________________________ ________________________________________________________________________ ________________________________________________________________________ ________________________________________________________________________ ________________________________________________________________________ ________________________________________________________________________ ________________________________________________________________________ ________________________________________________________________________ ________________________________________________________________________ P011658 – Rev. P...

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