Pneumatech EH Series Owner's Manual
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Pneumatech EH Series Owner's Manual

Heatless regenerative dryers
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H
R
D
EATLESS
EGENERATIVE
RYERS
PH SERIES/EH SERIES/PHM MINI SERIES
Owner's Manual
Printed in U.S.A.
Publication No. OM-A-10H
June 2006
Rev. 7

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Summary of Contents for Pneumatech EH Series

  • Page 1 EATLESS EGENERATIVE RYERS PH SERIES/EH SERIES/PHM MINI SERIES Owner’s Manual Printed in U.S.A. Publication No. OM-A-10H June 2006 Rev. 7...
  • Page 2 To receive Extended Warranty, you must regis- ter on line at: www.pneumatech.com. Doing this will extend the warranty to 24 months from date of shipment from Company’s factory. See back page for actual Warranty details. DATE OF PURCHASE MODEL SERIAL NO.

  • Page 3: Table Of Contents

    PH & EH Series Heatless Air Dryer Maintenance....... . .
  • Page 4 Dewpoint Display Key Functions ..........Setpoint Programming .

  • Page 5: General Information

    GENERAL INFORMATION SAFETY INSTRUCTIONS The Pneumatech Drying System is designed to remove moisture from compressed air. When using air compressors and compressed air When properly installed, the unit requires little accessories, basic safety rules and precautions must maintenance or adjustment.

  • Page 6: Disclaimer Of Warranty

    DISCLAIMER OF WARRANTY SECURE DRAIN LINES Fasten drain lines from prefilter/separator to floor or If this unit is used to produce breathing air, the special drain. Pressurized air may periodically pass through equipment and precautions expressed in OSHA 29 CFR drain lines, which will cause an unsecured line to 1910.134 for specifications of the necessary equipment whip and may cause bodily injury.

  • Page 7: Desiccant Replacement Procedures

    DESICCANT REPLACEMENT PROCEDURES DRAINING PROCEDURE Pneumatech uses Activated Alumina Grade A desiccant for all standard heatless regenerative air dryers. Dryers up The desiccant can be removed by the two methods listed to 1500 SCFM are factory filled with desiccant. Dryers below.

  • Page 8: Installation & Operation

    INSTALLATION & OPERATION FIGURE 1 — COMPRESSED AIR SYSTEM RECOMMENDED INSTALLATION FLOW DIAGRAM Pub. No. OM-A-10H REV. 7 — June 2006...

  • Page 9: Ph & Eh Series Heatless Air Dryer Installation & Operation

    PH & EH SERIES HEATLESS AIR DRYER Start-Up Procedure Leave the power switch in the OFF position. INSTALLATION & OPERATION Keeping the dryer isolation outlet valve closed, slowly pressurize both the adsorbent chambers to the General line pressure. Install dryer on a level base, indoors or under a shed.
  • Page 10 FEATURES MANUAL CYCLE ADVANCE: The backside of the remote I/O module contains an “ADVANCE” push • LCD screen indicating right/left tower drying, right/left button. Each time the “ADVANCE” push button is tower regenerating, tower switching, actual sequence pressed, the timing cycle advances by 30 seconds. time, demand cycle indication (opt.), fail to shift alert The “ADVANCE”...

  • Page 11: Sequence Of Operation

    OPTIONAL CONTROLS AND ALARMS left tower where the desiccant adsorbs the moisture, and the dry air at a pressure dewpoint of -40°F or less exits DEWPOINT DEMAND SEQUENCE CONTROL: through the left outlet check valve and goes out into the The dewpoint demand mode function will be plant air system through the afterfilter.

  • Page 12: Shutdown Procedure

    At time equal to 5.1 minutes, the left tower purge If the compressed air system has been valve opens to commence the regeneration cycle and the piped with a bypass around the dryer then above process is then repeated on the opposite towers. the following should be completed: a.
  • Page 13 DRYING & THE LEFT TOWER REGENERATING. 3. REPRESSURIZING VALVE LOCATED ON PH-400 AND LARGER AIR DRYERS. EX - EXHAUST ES - ELECTRICAL SIGNAL FIGURE 3 — PH & EH SERIES FLOW DIAGRAM Pub. No. OM-A-10H REV. 7 — June 2006...

  • Page 14: Phm Mini Series Heatless Air Dryer Installation & Operation

    PHM MINI SERIES HEATLESS AIR DRYER Theory of Operation The Pneumatech PHM Mini Series Heatless Regenerative INSTALLATION & OPERATION Air Dryer features “State of the Art” design. The 4-Way Inlet valve & outlet shuttle valve make these dryers trouble- General free in operation and require very little maintenance.

  • Page 15: Maintenance

    MAINTENANCE PH & EH SERIES HEATLESS AIR DRYER Three Months Every three (3) months, close the purge adjusting MAINTENANCE valve momentarily to check for any leaks in the inlet and/or check valves indicated by air coming through the exhaust mufflers.

  • Page 16: Mufflers

    5 PSIG in the regenerating tower. No lubrication is required, or should be used on any of the components. Desiccant Replacement Procedure Pneumatech uses Activated Alumina Grade A 1/8" Daily diameter for all standard PHM Mini Series Heatless Check auto drain on prefilter every shift.

  • Page 17: Desiccant Disposal

    Desiccant Disposal Desiccant is not considered a hazardous waste, unless contaminated with oil or other toxic substances. Disposal of the desiccant should be handled by a local waste management company. PHM-SERIES PROCESS & INSTRUMENT DRAWING PRESSURE AIR OUT PRESSURE GAUGE GAUGE OUTLET SHUTTLE...

  • Page 18: Dewpoint Display Key Functions

    DEWPOINT DISPLAY KEY FUNCTIONS OPEN SENSOR CONDITION When message oPEn1 is displayed, the dewpoint sensor DIGITAL DISPLAY KEY FUNCTIONS is likely to be disconnected from the hygrometer. BUTTON -73.5F SETPOINT LIMIT INDICATION Setpoint limit message is the flashing number within SP1 SP2 Prog.
  • Page 19 ANALOG RELAY RELAY RELAY RELAY OUTPUT SP 1 SP 3 SP 2 SP 4 (OS) DEWPOINT SENSOR POWER FIGURE 6 — DEWPOINT DISPLAY CONTROL WIRING Pub. No. OM-A-10H REV. 7 — June 2006...

  • Page 20: Options Listing With Explanation (Ph & Eh Models Only)

    OPTIONS LISTING WITH EXPLANATION (PH & EH MODELS ONLY) AUDIBLE ALARM PANEL LIGHTS The Audible Alarm consists of a buzzer with reset push The Panel Light option consists of four lights: Left Tower button and ON/OFF selector switch. Drying, Right Tower Drying, Left Tower Regenerating, and Right Tower Regenerating.

  • Page 21: Troubleshooting

    TROUBLESHOOTING Table 1 — Troubleshooting Guide for PH & EH Series Heatless Regenerative Dryers Symptoms Cause Remedy A. Elevated Dewpoint. 1. Low purge flow. 1. Reset purge pressure at the recommended pressure. 2. Low inlet pressure. 2. Recalculate purge pressure setting from the chart.

  • Page 22: Pub. No. Om-A-10H Rev. 7 — June

    Table 1 — Troubleshooting Guide for PH & EH Series Heatless Regenerative Dryers, continued Symptoms Cause Remedy D. Excessive flow through mufflers. 1. Check valves leaking. 1. Repair or replace faulty check valves. NOTE: To test for leaking check valves during regeneration cycle, shut the purge adjusting valve.
  • Page 23 Table 1 — Troubleshooting Guide for PH & EH Series Heatless Regenerative Dryers, continued Symptoms Cause Remedy L. Tower does not fully pressurize. 1. Inlet pressure low. 1. Calibrate and plot purge pressure and reset. 2. Purge pressure too low.
  • Page 24 LIMITED WARRANTY Warranties and Limitation of Liability: Pneumatech (“the Company”) warrants that it will, in its sole discretion, either repair or replace Products and/or Components of Products sold by it which have defects in material or workmanship (covering Components and reasonable labor) provided: (a) Customer notified the Company of any claim of defect in material or workmanship within fourteen (14) months from date of shipment from the Company’s factory or twelve (12) months from the date of initial operation of Product, whichever occurs...

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