Parker Airtek TWP200 - Excessive Air Loss on Regenerating Tower; Exhaust Valve on Drying or Repressurizing Tower Leaking; Excessive Pressure Drop; Unit Does Not Fully Pressurize

TWP/TWB200 – TWP/TWB9000
73
Excessive Air Loss On Regenerating Tower
- Purge pressure set too high: check specications and adjust.
- Repressurization solenoid leaking: repair, clean, or replace.
- Inlet valve leaking or not functioning: See inlet valve not functioning.
- Leaking check valve: repair, clean, or replace.
- Leaking or inoperative control solenoid: repair or replace.
- Defective controller: repair or replace.
Exhaust Valve On Drying or Repressurizing Tower Leaking
- Valve dirty: clean valve.
- Defectve diaphragms or seals: rebuild valve or replace.
- Leaking control solenoid: repair or replace.
Excessive Pressure Drop
- Prelter or afterlter fully saturated or collapsed: replace element.
- Desiccant contaminated with oil: replace desiccant.
- Excessive ow: reduce air ow rate to within product specs.
Unit Does Not Fully Pressurize
- Purge rate too low: Adjust purge pressure setting.
- Exhaust valve leaking: see exhaust valve leaking.
- Purge orice or repressurization valve plugged: clean.
Back Pressure In Regenerating Tower
- Clogged mufers: clean, repair, or replace.
- Check valve leaking: clean, repair, or replace.
- Purge ow too high: adjust purge pressure.
- Leaking inlet valve: See inlet valve not functioning.
Inlet or Exhaust Valve Not Functioning
- Bad seals or solenoid: rebuild valves with available kits or replace.
- No output from controller: replace fuse or controller.
- Valve dirty: rebuild or clean.
Blower not operating (TWB dryers only)
- Overload tripped: clogged blower inlet lter; replace.
- Blower deadheaded: determine cause.
- V-Belts broken: replace.
Amp draw is over nameplate rating (TWB4000-9000 onl)
- Air ow through blower is too high: choke off blower manual control valve.
Please note: When factory assistance is required, always provide serial number, model number, and full
description of problem.