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Pneumatech PE Series - User Manual

Pneumatech PE Series
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Printed in U.S.A. Publication No. OM-A-10E
April 2004
Owner’s Manual
H
EAT
R
EACTIVATED
D
RYERS
PE SERIES/EE SERIES/PB SERIES

Table of Contents

Questions and Answers

  • R
    rebecca66Aug 15, 2025
    Why is the dewpoint elevated in my Pneumatech PE Dryer?
    • A
      Alicia OsbornAug 16, 2025
      An elevated dewpoint in your Pneumatech Dryer can occur due to several reasons: low purge flow (reset purge pressure at the recommended pressure), low inlet pressure (recalculate purge pressure setting from the chart), excess moisture carryover (check prefilter element and drains at the prefilter and afterfilter), high inlet temperature (check aftercooler operation), excess air/gas inlet flow (check total output of compressors), desiccant coated with oil (depressurize dryer and inspect desiccant), dewpoint monitor out of calibration (recalibrate probe).
  • T
    Teresa WatkinsAug 18, 2025
    What to do if there is high pressure drop in Pneumatech PE?
    • S
      Steven FisherAug 18, 2025
      A high pressure drop in your Pneumatech Dryer may be due to: plugged desiccant retainer screens (replace desiccant retainer screens), excess flow (check inlet flow conditions), high purge flow (check and reset purge pressure), or the purge valve staying open (check repressurizing solenoid valve, repair or replace if necessary, and check the timer).
  • M
    Marie HillAug 21, 2025
    What to do if Pneumatech Dryer regeneration temperature is low?
    • H
      Holly BallardAug 21, 2025
      If the regeneration temperature is low (normal 250°F) in your Pneumatech Dryer, it could be due to: a faulty thermostat or one set too low (reset or replace if necessary), heater burnout (check and replace if necessary), a faulty contactor (replace heater contactor), or no power (check for continuity).
  • S
    Stacy HernandezAug 25, 2025
    What causes excessive flow through mufflers in Pneumatech Dryer?
    • N
      Nicole LewisAug 25, 2025
      Excessive flow through the mufflers in your Pneumatech Dryer can be caused by leaking check valves (repair or replace faulty check valves), a purge valve that stays open (check purge solenoid and valve; repair or replace if faulty), or a repressurizing valve that does not close (check repressurizing solenoid and valve; repair or replace if faulty), or diaphragms ruptured in valves (EE models) - replace diaphragms.
  • J
    Jesse DawsonAug 27, 2025
    Why is there high back pressure on the regenerating tower of my Pneumatech PE?
    • T
      Taylor JohnsonAug 27, 2025
      High back pressure on the regenerating tower of your Pneumatech Dryer may be caused by: a plugged muffler (replace mufflers), leaking check valves (repair or replace faulty check valves), excess purge flow (check and reset the purge pressure), restricted purge exhaust piping (remove obstruction or replace with larger size pipe), purge set too high (check purge calibration, plot and reset), or ruptured diaphragms in valves (EE models) - replace diaphragms.
  • W
    William LopezAug 30, 2025
    What to do if Pneumatech Dryer fails to purge?
    • M
      Monica BrooksAug 30, 2025
      If your Pneumatech Dryer fails to purge, it could be due to: a plugged orifice plate (clean the orifice plate), a purge valve that fails to open, a closed purge valve (reset proper purge pressure), or a blocked purge check valve (inspect and replace if necessary).
  • N
    Nicole ChaseSep 3, 2025
    What causes a Pneumatech PE Dryer tower to fail to pressurize?
    • K
      Kevin YoungSep 3, 2025
      A tower failing to pressurize in your Pneumatech Dryer can be caused by: a purge valve that stays open or ruptured diaphragms in valves (EE models). If the diaphragms are ruptured, replace them.
  • X
    xmendozaSep 5, 2025
    What to do if failure to switch alarm light in Pneumatech PE?
    • J
      Joshua Baxter MDSep 6, 2025
      If the alarm light fails to switch on your Pneumatech Dryer, it may be due to: inlet valves that did not switch (check pilot air solenoid valve and repair if necessary), a faulty timer (replace timer), insufficient pilot air pressure (clean or replace pilot filter element), or a cylinder leaking or seized up (repair or replace pilot air cylinder).
  • C
    Chelsea AbbottSep 8, 2025
    What to do if no gas flow through the Pneumatech Dryer?
    • T
      Thomas LittleSep 9, 2025
      If there is no gas flow through your Pneumatech Dryer, it could be because both inlet valves are closed due to low inlet pressure. To resolve this, manually open the inlet valve by turning the shaft or the ON actuator.
  • T
    Timothy FullerSep 12, 2025
    What to do if moisture indicator color turned pink in Pneumatech PE?
    • D
      douglas37Sep 12, 2025
      If the moisture indicator color has turned pink (wet conditions) in your Pneumatech Dryer, open the bleed valve to allow a small amount of air to constantly flow through the gel.

Summary

General Information

Safety Instructions

Crucial safety rules and precautions for operating the dryer.

Desiccant Replacement Procedures

Filling Procedure

Steps to fill the dryer with desiccant, ensuring proper amounts and types.

Draining Procedure

Installation and Operation

PE & EE Series Dryer Installation & Operation

Installation and operation procedures for PE & EE Series Heat Reactivated Air Dryers.

PB Series Dryer Installation & Operation

Maintenance

PE & EE Series Dryer Maintenance

Maintenance schedule and procedures for PE & EE Series Heat Reactivated Air Dryers.

PB Series Dryer Maintenance

Maintenance schedule and procedures for PB Series Heat Reactivated Blower Purge Air Dryers.

Dewpoint Display Functions

Dewpoint Demand Control (DPD)

Pulse Purge Regeneration (PPR) with Dewpoint Demand (DPD)

PPR Functionality

PPR and Dewpoint Demand Benefits

Troubleshooting

Dewpoint and Air Quality Troubleshooting

Addresses elevated dewpoint, excess desiccant dust, and moisture indicator issues.

Regeneration and Heating Troubleshooting

Covers low regeneration temperature, high back pressure, and heater failure.

Flow and Pressure Troubleshooting

Control and Alarm Troubleshooting

Pneumatech PE Series Specifications

General IconGeneral
TypeDesiccant
Flow RateVaries by model
Air Flow CapacityVaries by model
Operating Pressure4 - 10.3 bar
Inlet Temperature2 - 49 °C
DesiccantAlumina
Purge Air Loss15-18%
Power Supply230/1/60
Ambient Temperature Range1°C to 45°C
Construction MaterialCarbon Steel

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