Download
Share
Print this page
  1. Manuals
  2. Brands
  3. Puregas Manuals
  4. Dehumidifier
  5. P20KW
  6. User manual

Puregas P20KW User Manual

Hide thumbs Also See for P20KW:

Advertisement

Quick Links

P20KW / P30KW Air Dryer
User's Guide
P011238 – Rev. L

Advertisement

loading
Need help?

Need help?

Do you have a question about the P20KW and is the answer not in the manual?

Questions and answers

Related Manuals for Puregas P20KW

Summary of Contents for Puregas P20KW

  • Page 1 P20KW / P30KW Air Dryer User’s Guide P011238 – Rev. L...

  • Page 3: Welcome & Congratulations

    1. Welcome & Congratulations Congratulations on your purchase of a new PUREGAS P20KW / P30KW 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

    PUREGAS, LLC P20KW / P30KW Air Dryer User’s Guide 3. Table of Contents 8.13 Setting the Static Pressure ....... 46 1. Welcome & Congratulations ......3 8.14 Setting the Outlet Pressure ...... 47 8.15 Setting the RRU Temperature ....48 2.

  • Page 5: Table Of Contents

    PUREGAS, LLC P20KW / P30KW Air Dryer User’s Guide 11.5 Bottom Back Section Parts ..... 87 13.15 High RRU Temperature Alarm ... 100 11.6 Frame Section Parts ........ 88 13.16 Low Water Alarm ....... 100 11.7 Accessories for Your Dryer ....89 13.17 Can’t Create a Low Water Alarm ..

  • Page 6: Safety & Warning Information

    PUREGAS, LLC P20KW / P30KW Air Dryer User’s Guide 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 PUREGAS, LLC P20KW / P30KW Air Dryer User’s Guide WARNING! High Noise. PUREGAS air dryers are meant to be installed in an unattended area. CAUTION! Proper Installation & Maintenance as outlined in this User’s Guide is extremely important to ensure the reliability and longevity of the equipment as well as prevent damage or personal injury.
  • Page 8 If installing more than one air dryer in the same location, use individual drain tubing. If plumbed together, damage to the air dryers may occur. IMPORTANT! Installation of PUREGAS air dryers are intended for network telecommunication facilities (non-customer premises) only. Page 8 of 109...

  • Page 9: Overview & Specifications

    5. Overview & Specifications 5.1 Product Description The P20KW / P30KW Air Dryer from PUREGAS is 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 10: Dryer Function Overview

    PUREGAS, LLC P20KW / P30KW Air Dryer User’s Guide 5.3 Dryer Function Overview Page 10 of 109 P011238 – Rev L...
  • Page 11 PUREGAS, LLC P20KW / P30KW Air Dryer User’s Guide Component Description Inlet Air Filter Draws in ambient air. Accumulator Prevents the return of air or water from the compressor. Compressor Creates compressed air. Primary Water Separator Separates water from compressed air.

  • Page 12: Technical Specifications

    PUREGAS, LLC P20KW / P30KW Air Dryer User’s Guide 5.4 Technical Specifications P20KW P30KW Output Capacity 20,000 SCFD 30,000 SCFD Power Requirements 208 - 230 VAC, 1 Phase 208 - 230 VAC, 3 Phase Electrical Characteristics (30 Amp service Running Amps: 17.5 Running Amps: 16.5...

  • Page 13: Installing Your Dryer

    It is highly recommended that you remove all jewelry before performing any procedures. WARNING! High Noise. PUREGAS air dryers are meant to be installed in an unattended area. CAUTION! Proper Installation & Maintenance as outlined in this User’s Guide is extremely important to ensure the reliability and longevity of the equipment as well as prevent damage or personal injury.
  • Page 14 • 30 amp service recommended • 20 amp slow blow fuse • 208 - 230 VAC, 1 Phase for P20KW model • 208 - 230 VAC, 3 Phase for P30KW model • If hard-wiring directly, minimum of 10 AWG wire must...

  • Page 15: Before You Begin

    NOTE: Higher temperatures will decrease component lifespan. 6.2.3.4 Meets the following power requirements: • 208 - 230 VAC, 1 Phase for P20KW • 208 - 230 VAC, 3 Phase for P30KW • Minimum 30 amp service with a 20 amp slow blow fuse •...

  • Page 16: Included Contents

    PUREGAS, LLC P20KW / P30KW Air Dryer User’s Guide 6.3 Included Contents (1) P20KW / P30KW Air Dryer (2) 10’ - 3/8” Drain Tubing (1) Installation Guide (not shown) Package located inside the dryer: (1) User’s Guide - Paper copy or digital file on CD (not shown)

  • Page 17: Installation Steps

    PUREGAS, LLC P20KW / P30KW Air Dryer User’s Guide 6.5 Installation Steps 6.5.1 Remove all shipping materials. NOTE: If ANY SHIPPING DAMAGE is detected, file a claim with the shipping company prior to continuing the installation procedures. 6.5.2 Place the dryer at the operating location.
  • Page 18 PUREGAS, LLC P20KW / P30KW Air Dryer User’s Guide 6.5.5 Using a 1/2” wrench, loosen the nuts on the RRU Compressor. 6.5.6 Remove the shipping blocks and discard. 6.5.7 Retighten the RRU Compressor nuts. 6.5.8 Using a 7/16” wrench, remove bolt and shipping block from under the compressor plate.
  • Page 19 • 208 - 230 VAC, 1 phase for the P20KW • 208 - 230 VAC, 3 phase for the P30KW NOTE: PUREGAS recommends using a 20 amp 250 VAC plug. (not provided) Page 19 of 109 P011238 – Rev L...
  • Page 20 PUREGAS, LLC P20KW / P30KW Air Dryer User’s Guide 6.5.14 Prime the compressor: CAUTION: The following steps must be performed to avoid damage to the compressor. 6.5.14.1 Remove Inlet Air Filter Assembly. 6.5.14.2 Push the Accumulator’s diaphragm down by inserting a screwdriver as shown.
  • Page 21 PUREGAS, LLC P20KW / P30KW Air Dryer User’s Guide 6.5.15 Power the dryer ON momentarily and then power OFF. NOTE: If water is NOT drawn into the Accumulator move to the next step. If the water IS being drawn into the Accumulator move to step 6.5.17 ).
  • Page 22 PUREGAS, LLC P20KW / P30KW Air Dryer User’s Guide 6.5.18 Continue adding water until the water level stabilizes below the Dump Water Sensor. 6.5.19 Remove Screwdriver. 6.5.20 Reinstall Inlet Air Filter assembly. 6.5.21 Let the dryer run until the Humidity drops under 2% (may take up to 15 minutes).
  • Page 23 Pressure port(s). CAUTION: Be careful when removing outlet plug(s). System may be pressurized. PUREGAS recommends using Installation Kit P011890 to connect your air dryer to the air supply line (See section 11.7 for detail). 6.5.24 Power the dryer ON. Page 23 of 109...
  • Page 24 PUREGAS, LLC P20KW / P30KW Air Dryer User’s Guide 6.5.25 Set the System Pressure: 6.5.25.1 When the SYSP Screen (8.4.5.1 ) appears on the display, press the HOLD Button on the Front Panel to freeze that screen. 6.5.25.2 Unlock the knob on...
  • Page 25 PUREGAS, LLC P20KW / P30KW Air Dryer User’s Guide 6.5.26 Set the Static Pressure: 6.5.26.1 Pull the Static Pressure Regulator knob out. 6.5.26.2 Turn the knob until the reading on the pressure gauge is 17 PSI. 6.5.26.3 Push knob in to lock.
  • Page 26 PUREGAS, LLC P20KW / P30KW Air Dryer User’s Guide 6.5.28 Check 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 HUMITTER FITTING.

  • Page 27: Installation Checklist

    PUREGAS, LLC P20KW / P30KW Air Dryer User’s Guide 6.5.29 Re-install the Lower Front and Side Panels. 6.5.30 REGISTER YOUR DRYER. See section 7. for details. 6.6 Installation Checklist  No shipping damage was detected.  Dryer location meets the following requirements:...

  • Page 28: Registering Your Dryer

    P20KW / P30KW Air Dryer User’s Guide 7. Registering Your Dryer Please take a moment to register your PUREGAS P20KW / P30KW 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 29: Operating Your Dryer

    WARNING! High Noise. Puregas air dryers are meant to be installed in an unattended area. CAUTION! Observe precautions for handling Electrostatic Sensitive Devices.

  • Page 30: Connecting Air Lines To The Dryer

    CAUTION: Be careful when removing outlet plugs. System may be pressurized. PUREGAS recommends using Installation Kit P011890 to connect your air dryer to the air supply line (See section 11.7 for detail). 8.3 Powering the Dryer ON & OFF CAUTION! Incoming power to Air Dryer must be: •...

  • Page 31: Using The Front Panel Display

    PUREGAS, LLC P20KW / P30KW Air Dryer User’s Guide 8.4 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. 8.4.1 RESET Button – Clears an alarm and allows the system to continue operating.
  • Page 32 PUREGAS, LLC P20KW / P30KW Air Dryer User’s Guide 8.4.5 Display Screen - Shows the current dryer readings. Will cycle between the following information screens (unless the HOLD button has been pressed): 8.4.5.1 SYSP Screen SYSP – System Operating Pressure OUTP –...
  • Page 33 PUREGAS, LLC P20KW / P30KW Air Dryer User’s Guide 8.4.5.3 Comp Run Screen COMP RUN – How many hours the compressor has run since the last Total Hour Reset. SYSTEM STAT - Running Status of System: • ON – System is Online •...

  • Page 34: Identifying Dryer Alarms

    8.4.6.3 Press the Left () Arrow Button to increase the hour value of the cycle time. IMPORTANT: Puregas only recommends adjusting the Cycle Time for testing or troubleshooting purposes. Adjusting the Cycle Time may cause a High Temperature alarm or Humidity alarm in the air dryer.
  • Page 35 PUREGAS, LLC P20KW / P30KW Air Dryer User’s Guide 8.5.3 Low Outlet Pressure Alarm – Occurs when the Outlet Pressure (OUTP) drops below the alarm set point for more than one (1) minute. (Default setting is 6.5 PSI) See section 13.9 for troubleshooting information.
  • Page 36 PUREGAS, LLC P20KW / P30KW Air Dryer User’s Guide 8.5.6 High RRU Temperature Alarm – Occurs when the refrigeration temperature rises above 60°F for more than one (1) minute. See section 13.15 for troubleshooting information. 8.5.7 High Water Temperature Alarm - Occurs when the water temperature rises above 150°F for more than one (1)
  • Page 37 PUREGAS, LLC P20KW / P30KW Air Dryer User’s Guide 8.5.9 High Water Alarm – Occurs when the Water level rises above the High Water Sensor in the Secondary Sight Glass. See section 13.18 for troubleshooting information. 8.5.10 Low Water Alarm –...

  • Page 38: Adjusting & Resetting Dryer Set Points

    PUREGAS, LLC P20KW / P30KW Air Dryer User’s Guide 8.6 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 39 PUREGAS, LLC P20KW / P30KW Air Dryer User’s Guide 8.6.2 High Outlet Pressure Alarm Set Point (default setting is 12 PSI) – 8.6.2.1 Press the Right () Arrow Button to access the Change Value Screen. 8.6.2.2 Press the Right () &...
  • Page 40 PUREGAS, LLC P20KW / P30KW Air Dryer User’s Guide 8.6.4 Low System Pressure Alarm Set Point (default setting is 18.0 PSI) – 8.6.4.1 Press the Right () Arrow Button to access the Change Value Screen. 8.6.4.2 Press the Right () &...
  • Page 41 PUREGAS, LLC P20KW / P30KW Air Dryer User’s Guide 8.6.6 Power Up Delay Set Point (default setting is 0 sec) – The Power Up 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 42: Opening Panels

    PUREGAS, LLC P20KW / P30KW Air Dryer User’s Guide 8.6.9 Alarm Delays Set Point The Alarm Delay allows an alarm condition to be present for up to one (1) minute before signaling the alarm. This allows the dryer to come out of the alarm condition on its own without signaling an alarm.

  • Page 43: Connecting To Common Alarm Terminals

    PUREGAS, LLC P20KW / P30KW Air Dryer User’s Guide 8.7.2 Removing Lower Front and Side Panels – 8.7.2.1 Depress the latches and pull the Lower Front and Side Panels out. 8.8 Connecting to Common Alarm Terminals NOTE: The Common Alarm Socket is wired as a CLOSE ON ALARM by default.

  • Page 44: Rewiring The Common Alarm Socket

    PUREGAS, LLC P20KW / P30KW Air Dryer User’s Guide 8.9 Rewiring the Common Alarm Socket 8.9.1 Open the Top Front Panel (see section 8.7.1 ) 8.9.2 Wire the Common Alarm Socket on the Control Board as required: • COMMON & CLOSE ON ALARM operation (default).

  • Page 45: Depressurizing The Dryer

    PUREGAS, LLC P20KW / P30KW Air Dryer User’s Guide 8.11 Depressurizing the Dryer 8.11.1 Power the air dryer off (see section 8.3 ) 8.11.2 Remove Lower Front Panel (see section 8.7.2 ) 8.11.3 Push the Outlet Pressure Tube in and hold the ferrule.

  • Page 46: Setting The Static Pressure

    PUREGAS, LLC P20KW / P30KW Air Dryer User’s Guide 8.12.3 Unlock the knob on the System Pressure Regulator by loosening the retaining nut with a 1/2” wrench. 8.12.4 Adjust the System Pressure Regulator until the SYSP reading on the Front Panel Display is 24 PSI.

  • Page 47: Setting The Outlet Pressure

    PUREGAS, LLC P20KW / P30KW Air Dryer User’s Guide 8.14 Setting the Outlet Pressure 8.14.1 Remove Lower Front Panel (see section 8.7.2 ) 8.14.2 When the SYSP Screen (8.4.5.1 appears on the display, press the HOLD Button on the Front Panel to freeze that screen.

  • Page 48: Setting The Rru Temperature

    PUREGAS, LLC P20KW / P30KW Air Dryer User’s Guide 8.15 Setting the RRU Temperature CAUTION! DO NOT ADJUST THE RRU unless it has been at least 45 Minutes from time of Installation, Power ON, or previous RRU Adjustment. The Temperature and Pressure need to reach equilibrium before performing additional adjustments.
  • Page 49 PUREGAS, LLC P20KW / P30KW Air Dryer User’s Guide 8.15.4 With a 3/8” wrench, turn the adjustment screw on the Valve in 1/4 turn increments until 35° - 45°F is indicated on the RRU TMP of the display screen. 8.15.5 Allow the unit to run for at least 45 minutes to reach equilibrium.

  • Page 50: Testing Your Dryer

    WARNING! High Noise. PUREGAS air dryers are meant to be installed in an unattended area. CAUTION! Depressurizing the air dryer may be necessary before performing certain procedures.
  • Page 51 This unit is designed for clean tap water only. CAUTION! Observe precautions for handling Electrostatic Sensitive Devices. IMPORTANT! Installation of PUREGAS air dryers are intended for network telecommunication facilities (non-customer premises) only. Page 51 of 109 P011238 – Rev L...

  • Page 52: Measuring Compressor Amp Draw

    PUREGAS, LLC P20KW / P30KW Air Dryer User’s Guide 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 53: Measuring Voltage To Compressor

    PUREGAS, LLC P20KW / P30KW Air Dryer User’s Guide 9.3 Measuring Voltage to Compressor 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 54: Measuring Incoming Voltage

    PUREGAS, LLC P20KW / P30KW Air Dryer User’s Guide 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 the Top Front Panel (see section 8.7.1 )

  • Page 55: Testing High Outlet Pressure Alarm

    PUREGAS, LLC P20KW / P30KW Air Dryer User’s Guide 9.5 Testing High Outlet Pressure Alarm NOTE: All testing values are based on default Dehydrator settings, if settings have been changed, adjust testing values accordingly. Reference the Appendix Section 14.2.1 for Limits and Defaults.

  • Page 56: Testing Low Outlet Pressure Alarm

    PUREGAS, LLC P20KW / P30KW Air Dryer User’s Guide 9.5.8 Press the RESET Button 9.5.9 Reinstall the Lower Front Panel (see section 8.7.2 ) If you are unable to create a High Outlet Pressure Alarm as described, see section 13.8 for troubleshooting information.

  • Page 57: Testing Low System Pressure Alarm

    PUREGAS, LLC P20KW / P30KW Air Dryer User’s Guide 9.6.6 Turn Outlet Pressure Regulator knob clockwise until Outlet. Pressure (OUTP) reading rises to the reading recorded in step 9.6.3 9.6.7 Push knob in to lock. 9.6.8 Press the RESET Button.
  • Page 58 PUREGAS, LLC P20KW / P30KW Air Dryer User’s Guide 9.7.4 Unlock the knob on the System Pressure Regulator by loosening the retaining nut with a 1/2” wrench. 9.7.5 Turn the System Pressure Regulator counter-clockwise until the SYSP reading on the Front Panel Display is below 18.0 PSI.

  • Page 59: Testing 4-Way Valve Cycling

    PUREGAS, LLC P20KW / P30KW Air Dryer User’s Guide 9.8 Testing 4-Way Valve Cycling 9.8.1 Using a 1-1/4” wrench completely disconnect the Top Braided Hose from the 4-Way Valve Assembly. 9.8.2 Press the CYCLE TIME Button on the Front Panel to freeze that screen.
  • Page 60 PUREGAS, LLC P20KW / P30KW Air Dryer User’s Guide 9.8.5 Place your hand next to the fitting to verify there IS air flow. 9.8.6 Increase the hour value of the CYCLE TIME between 8:00 and 15:59 by pressing the Left () Arrow Button.
  • Page 61 PUREGAS, LLC P20KW / P30KW Air Dryer User’s Guide 9.8.10 With the hour value of the CYCLE TIME between 8:00 and 15:59. 9.8.11 Place your hand next to the fitting to verify there IS air flow. 9.8.12 Increase the hour value of...

  • Page 62: Measuring 4-Way Valve Solenoid Voltage

    PUREGAS, LLC P20KW / P30KW Air Dryer User’s Guide 9.8.15 Return the CYCLE TIME to the reading recorded in step 9.8.3 . 9.8.16 Press the RESET Button. 9.9 Measuring 4-Way Valve Solenoid Voltage WARNING! Extreme care should be exercised to avoid contact with live electrical circuits.
  • Page 63 PUREGAS, LLC P20KW / P30KW Air Dryer User’s Guide 9.9.3 Increase the hour value of the CYCLE TIME between 0:01 and 7:59 by pressing the Left () Arrow Button. 9.9.4 Open the Top Front Panel (see section 8.7.1 ) 9.9.5 Locate the Power Relay Board.
  • Page 64 PUREGAS, LLC P20KW / P30KW Air Dryer User’s Guide 9.9.7 Use a Voltmeter to measure the DC voltage across the terminals “Tower 2” wire #28 BLK & #19 WHT. The voltage should measure 0 Volts DC. 9.9.8 Close the Top Front Panel (see section 8.7.2 ) 9.9.9 Increase the hour value of...

  • Page 65: Measuring Tower Heater Voltage

    PUREGAS, LLC P20KW / P30KW Air Dryer User’s Guide 9.9.12 Use a Voltmeter to measure the DC voltage across the terminals “Tower 2” wire #28 BLK & #19 WHT. The voltage should measure 24 Volts DC 9.9.13 Close the Top Front Panel (see section 8.7.2 ) 9.9.14 Return the CYCLE TIME to the reading recorded in step 9.9.2 .
  • Page 66 PUREGAS, LLC P20KW / P30KW Air Dryer User’s Guide 9.10.2 Make a note of the current CYCLE TIME reading. 9.10.3 Increase the hour value of the CYCLE TIME between 0:01 and 3:59 by pressing the Left () Arrow Button. 9.10.4 Open the Top Front Panel (see section 8.7.1 ) 9.10.5 Locate the Power Relay...
  • Page 67 PUREGAS, LLC P20KW / P30KW Air Dryer User’s Guide 9.10.7 Use a Voltmeter to measure the AC voltage across the terminals “Heater 2” wire #30 BLK & #16 WHT. The voltage should measure 220VAC (±10%) 9.10.8 Close the Top Front Panel (see section 8.7.2 ) 9.10.9 Increase the hour value of...

  • Page 68: Testing Precooler Fan

    PUREGAS, LLC P20KW / P30KW Air Dryer User’s Guide 9.10.12 Use a Voltmeter to measure the AC voltage across the terminals “Heater 2” wire #30 BLK & #16 WHT. The voltage should measure 0VAC. 9.10.13 Close the Top Front Panel (see section 8.7.2 ) 9.10.14 Return the CYCLE TIME to the reading recorded in step 9.9.2 .

  • Page 69: Testing Low Water Sensor Function System Shutdown

    PUREGAS, LLC P20KW / P30KW Air Dryer User’s Guide 9.12 Testing Low Water Sensor Function & System Shutdown 9.12.1 Remove Lower Front Panel (see section 8.7.2 ) 9.12.2 Locate and disconnect the Low Water Sensor Connector. 9.12.3 After one (1) minute...

  • Page 70: Testing Dump Sensor And Primary Water Dump Functions

    PUREGAS, LLC P20KW / P30KW Air Dryer User’s Guide 9.13 Testing Dump Sensor and Primary Water Dump Functions 9.13.1 Remove Lower Front Panel (see section 8.7.2 ) 9.13.2 Remove Inlet Air Filter Assembly. 9.13.3 Slowly add water in dryer. CAUTION: DO NOT USE DISTILLED OR DE-IONIZED WATER IN THIS UNIT.
  • Page 71 PUREGAS, LLC P20KW / P30KW Air Dryer User’s Guide 9.13.6 Locate the Power Relay Board. 9.13.7 Use a Voltmeter to measure voltage to Primary Dump Solenoid while dryer is dumping water. Wire # 42 BLK & # 20 WHT The voltage should measure 24 Volts DC.

  • Page 72: Testing High Water And Secondary Water Dump Functions

    PUREGAS, LLC P20KW / P30KW Air Dryer User’s Guide 9.13.9 Reinstall Inlet Air Filter Assembly. 9.13.10 Close the Top Front Panel (see section 8.7.2 ) 9.13.11 Reinstall the Lower Front Panel (see section 8.7.2 ) 9.14 Testing High Water and Secondary Water Dump Functions 9.14.1 When the RRU TMP Screen...
  • Page 73 PUREGAS, LLC P20KW / P30KW Air Dryer User’s Guide 9.14.4 Remove the Inlet Air filter. 9.14.5 Slowly add water in dryer. CAUTION: DO NOT USE DISTILLED OR DE-IONIZED WATER IN THIS UNIT. 9.14.6 Keep adding water until the water level is above the High Water Sensor and the LED is lit.
  • Page 74 PUREGAS, LLC P20KW / P30KW Air Dryer User’s Guide 9.14.9 Use a Voltmeter to measure voltage to Secondary Dump Solenoid while dryer is dumping water. Wire # 41 BLK & # 21 The voltage should measure 24 Volts DC. 9.14.10 Verify that the High Water Level Alarm appears.
  • Page 75 PUREGAS, LLC P20KW / P30KW Air Dryer User’s Guide 9.14.13 The dryer will dump the water until it stabilizes just below the Dump Water Sensor, and the Dump LED will turn off. 9.14.14 Reinstall Inlet Air Filter Assembly. 9.14.15 Close the Top Front Panel (see section 8.7.2 ) 9.14.16 Reinstall the Lower Front Panel (see section 8.7.2 )

  • Page 76: Testing Humidity Alarm And System Shutdown

    PUREGAS, LLC P20KW / P30KW Air Dryer User’s Guide 9.15 Testing Humidity Alarm and System Shutdown NOTE: All testing values are based on default Dehydrator settings, if settings have been changed, adjust testing values accordingly. 9.15.1 Depressurize the Dryer (see section 8.11 ) 9.15.2 Unscrew and remove the...

  • Page 77: Testing Power Contactor

    PUREGAS, LLC P20KW / P30KW Air Dryer User’s Guide 9.15.5 Replace the Humitter into the Combo Block. 9.15.6 Reinstall the Lower Front Panel (see section 8.7.2 ) 9.15.7 Press the RESET Button. If you are unable to create a Humidity / Shutdown alarm as described, see section 13.13 for troubleshooting information.
  • Page 78 PUREGAS, LLC P20KW / P30KW Air Dryer User’s Guide 9.16.3 Use a Voltmeter to measure voltage to “L” Side of the Power Contactor. From Voltage P20KW Black White 208 - 230 VAC Black White 208 - 230 VAC P30KW Black...

  • Page 79: Testing Fittings & Hoses For Leaks

    PUREGAS, LLC P20KW / P30KW Air Dryer User’s Guide 9.17 Testing Fittings & Hoses for Leaks 9.17.1 Visually inspect for water leaks. 9.17.2 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.

  • Page 80: Maintaining Your Dryer

    P20KW / P30KW Air Dryer User’s Guide 10. Maintaining Your Dryer In order to ensure that your P20KW / P30KW Air Dryer continues to operate efficiently and reliably, PUREGAS recommends performing the following maintenance procedures at the specified Six Month intervals.
  • Page 81 WARNING! High Noise. Puregas air dryers are meant to be installed in an unattended area. CAUTION! Depressurizing the air dryer may be necessary before performing certain procedures.

  • Page 82: Six Month Maintenance

    PUREGAS, LLC P20KW / P30KW Air Dryer User’s Guide 10.2 Six Month Maintenance MODEL: LOCATION NAME: SERIAL NUMBER: ADDRESS: DATE INSTALLED: Maintenance Interval (Months) Procedure Section      Install Six Month Maintenance Kit P011240 11.7 Read & Record Flow Rate (FLOW) 8.4.5.1...

  • Page 83: Replacement Parts & Accessories

    PUREGAS, LLC P20KW / P30KW Air Dryer User’s Guide 11. Replacement Parts & Accessories 11.1 Top Front Section Parts Recommend Description Part Number Quantity Spare Top Front Panel See section 11.3 for detail. Air Filters In Kit P011240. See section 11.7 for detail.

  • Page 84: Bottom Front Section Parts

    PUREGAS, LLC P20KW / P30KW Air Dryer User’s Guide 11.2 Bottom Front Section Parts Recommend Description Part Number Quantity Spare Inlet Air Filter In Kit P011240. See section 11.7 for detail. Accumulator P011347 System Pressure Regulator P011356  (1) Compressor P011534 (P20KW) ...

  • Page 85: Top Front Panel Parts

    PUREGAS, LLC P20KW / P30KW Air Dryer User’s Guide 11.3 Top Front Panel Parts Recommend Description Part Number Quantity Spare Power Supply Board P011372  (1) Power Contactor P011355  (1) Circuit Breaker P011340 Front Panel Display P011258  (1)

  • Page 86: Top Back Section Parts

    PUREGAS, LLC P20KW / P30KW Air Dryer User’s Guide 11.4 Top Back Section Parts Recommend Description Part Number Quantity Spare Terminal Block Combo Block  (1) Humitter P011380 Precooler P011358 P011700 Page 86 of 109 P011238 – Rev L...

  • Page 87: Bottom Back Section Parts

    PUREGAS, LLC P20KW / P30KW Air Dryer User’s Guide 11.5 Bottom Back Section Parts Recommend Description Part Number Quantity Spare Tower 1 Flex Tube P011363 Tower 2 Flex Tube P011364  (1) Secondary Dump Solenoid P011136  (1) Secondary Dump Check Valve P012489 ...

  • Page 88: Frame Section Parts

    PUREGAS, LLC P20KW / P30KW Air Dryer User’s Guide 11.6 Frame Section Parts Recommend Description Part Number Quantity Spare Top Cover Lower Front Panel Trigger Latch Side Panels Page 88 of 109 P011238 – Rev L...

  • Page 89: Accessories For Your Dryer

    PUREGAS, LLC P20KW / P30KW Air Dryer User’s Guide 11.7 Accessories for Your Dryer Recommend Description Part Number Spare Installation Kit P011890 Includes fittings required to connect to 3/4” flexible hose. Six Month Maintenance Kit  (2) P011240 Includes inlet air filter, water filter, air filters, O-ring, and inlet tower filters.

  • Page 90: 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 91: Service & Repair

    PUREGAS, LLC P20KW / P30KW Air Dryer User’s Guide 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 92: 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 93 It is highly recommended that you remove all jewelry before performing any procedures. WARNING! High Noise. Puregas air dryers are meant to be installed in an unattended area. CAUTION! Do not test the Humitter with an ohm meter or apply any DC voltage.

  • Page 94: Air Dryer Won't Power On

    PUREGAS, LLC P20KW / P30KW Air Dryer User’s Guide 13.3 Air Dryer Won’t Power ON Possible Cause Check Corrective Action Circuit Breaker in OFF Verify the Circuit Move the Circuit position Breaker is in ON Breakers to ON position position (section 8.3 )

  • Page 95: Alarm

    PUREGAS, LLC P20KW / P30KW Air Dryer User’s Guide 13.6 Can’t Create a Low System Pressure Alarm Possible Cause Check Corrective Action Defective System Verify that the System Replace System Pressure Regulator Pressure Regulator can Pressure Regulator if be adjusted unable to adjust pressure (section 8.12 )

  • Page 96: Can't Create A High Pressure Alarm

    PUREGAS, LLC P20KW / P30KW Air Dryer User’s Guide 13.8 Can’t Create a High Pressure Alarm Possible Cause Check Corrective Action Defective Outlet Verify that the Outlet Replace Outlet Pressure Pressure Regulator Pressure Regulator can Regulator if unable to be adjusted adjust pressure (section (section 8.14 )

  • Page 97: Can't Create A Low Pressure Alarm

    PUREGAS, LLC P20KW / P30KW Air Dryer User’s Guide 13.10 Can’t Create a Low Pressure Alarm Possible Cause Check Corrective Action Defective Outlet Verify that the Outlet Replace Outlet Pressure Pressure Regulator Pressure Regulator can Regulator if unable to be adjusted adjust pressure (section (section 8.14 )

  • Page 98: High Humidity

    PUREGAS, LLC P20KW / P30KW Air Dryer User’s Guide 13.12 High Humidity CAUTION! Do not test the Humitter with an ohm meter or apply any DC voltage. This will render the humitter defective. Possible Cause Check Corrective Action Low System Pressure...

  • Page 99: Can't Create A High Humidity Alarm Shutdown

    PUREGAS, LLC P20KW / P30KW Air Dryer User’s Guide 13.13 Can’t Create a High Humidity Alarm / Shutdown These troubleshooting steps assume that the Humitter is removed from the Humidity Block during the Testing Humidity Alarm and System Shutdown (section 9.15 ) procedures.

  • Page 100: High Rru Temperature Alarm

    PUREGAS, LLC P20KW / P30KW Air Dryer User’s Guide 13.15 High RRU Temperature Alarm Possible Cause Check Corrective Action Fan Failure Verify fan is running Check for loose fan (section 9.11 ) wiring (section 14.1 ) Replace defective fan (section 11.4 )

  • Page 101: Can't Create A Low Water Alarm

    PUREGAS, LLC P20KW / P30KW Air Dryer User’s Guide 13.17 Can’t Create a Low Water Alarm Possible Cause Check Corrective Action Loose or poor electrical Check wiring Repair or replace any connection connections loose or damaged wire connections Defective Low Water...

  • Page 102: Can't Create A High Water Alarm

    PUREGAS, LLC P20KW / P30KW Air Dryer User’s Guide 13.19 Can’t Create a High Water Alarm Possible Cause Check Corrective Action Loose or poor electrical Check wiring Repair or replace any connection connections loose or damaged wire connections Defective High Water...

  • Page 103: Compressor Doesn't Operate

    PUREGAS, LLC P20KW / P30KW Air Dryer User’s Guide 13.21 Compressor Doesn’t Operate Possible Cause Check Corrective Action Defective compressor Measure voltage to If voltage is good, compressor replace compressor (section 9.3 ) (section 11.2 ) or send it in for repair (section 12.

  • Page 104: Contacting Puregas Technical Support

    P20KW / P30KW Air Dryer User’s Guide 13.23 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 105: Appendix

    PUREGAS, LLC P20KW / P30KW Air Dryer User’s Guide 14. Appendix 14.1 Wiring Diagram Page 105 of 109 P011238 – Rev L...

  • Page 106: Set Point Limits And Defaults

    PUREGAS, LLC P20KW / P30KW Air Dryer User’s Guide 14.2 Set Point Limits and Defaults 14.2.1 System Adjustments Minimum Maximum Default Unit of Description Value Value Value Measurement System Pressure 18.0 26.0 24.0 Static Pressure 17.0 17.0 17.0 Outlet Pressure 15.0...

  • Page 107: 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 108: Contacting Puregas

    PUREGAS, LLC P20KW / P30KW Air Dryer User’s Guide 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 109: Notes

    PUREGAS, LLC P20KW / P30KW Air Dryer User’s Guide 17. Notes ________________________________________________________________________ ________________________________________________________________________ ________________________________________________________________________ ________________________________________________________________________ ________________________________________________________________________ ________________________________________________________________________ ________________________________________________________________________ ________________________________________________________________________ ________________________________________________________________________ ________________________________________________________________________ ________________________________________________________________________ ________________________________________________________________________ ________________________________________________________________________ ________________________________________________________________________ ________________________________________________________________________ ________________________________________________________________________ ________________________________________________________________________ ________________________________________________________________________ ________________________________________________________________________ ________________________________________________________________________ ________________________________________________________________________ ________________________________________________________________________ ________________________________________________________________________ ________________________________________________________________________ ________________________________________________________________________ ________________________________________________________________________ ________________________________________________________________________ ________________________________________________________________________ ________________________________________________________________________ Page 109 of 109 P011238 –...

This manual is also suitable for:

P30kw