Why is my Parker Dehumidifier not turning on (no lights)?
Your Parker Dehumidifier might not be turning on because of a blown control fuse (replace the fuse), no power supply (apply correct power), or an inoperative solid state controller (replace the controller).
What to do if Parker Dehumidifier has excessive pressure drop?
If your Parker Dehumidifier has an excessive pressure drop, the pre-filter is likely dirty (replace the element), the afterfilter is dirty (replace the element), or the desiccant is dirty (replace the desiccant).
What to do if Parker Dehumidifier lights are on, but the dryer doesn't switch?
If the lights are on but your Parker Dehumidifier isn't switching, it could be due to a control air shutoff (open the valve), the dryer being in PowerLoc, CycleLoc, or ProPurge mode, or the dryer not being in a 100% load cycle (check the setting). For PowerLoc, CycleLoc, or ProPurge modes consult pages 9-10.
How to fix excessive air loss on the regenerating tower of Parker Dehumidifier?
Excessive air loss on the regenerating tower of your Parker Dehumidifier could be due to: * Purge set too high (check specifications and adjust). * Repressurization solenoid leaking (repair or replace). * Inlet valve leaking or not functioning (repair or replace). * Leaking or inoperative control solenoid (repair or replace). * Defective controller (repair or replace).
Why Parker Dehumidifier unit does not fully repressurize?
If your Parker Dehumidifier unit does not fully repressurize, it could be due to a purge rate that is too low (adjust purge), leaking exhaust valves (see above), a faulty repressurization solenoid (replace solenoid), or a plugged purge or repressurization orifice.
How to eliminate back pressure in regenerating tower in Parker Dehumidifier?
To eliminate back pressure in the regenerating tower of your Parker Dehumidifier, you should check for clogged mufflers (clean, repair, or replace), leaking check valves (clean, repair, or replace), a purge flow that is too high (adjust), or no output from the controller (replace fuse or controller).
What causes inlet or exhaust valves not functioning in Parker Dehumidifier?
Inlet or exhaust valves not functioning on your Parker Dehumidifier can be caused by bad diaphragms or O-rings (rebuild valves available kits or replace), no control air (see below), defective control solenoids (repair or replace), or no output from the controller (repair or replace).
What to do if the exhaust valve on drying or repressurizing tower is leaking in Parker Dehumidifier?
If the exhaust valve on the drying or repressurizing tower of your Parker Dehumidifier is leaking, it could be because the valve is dirty (clean valve), the diaphragms or O-rings are defective (repair or replace), or the control solenoid is leaking (repair or replace).
How to troubleshoot no control air at inlet or exhaust valves in Parker Dehumidifier?
If there's no control air at the inlet or exhaust valves of your Parker Dehumidifier, check if the control air shutoff valve is closed (open it), the control air filter is dirty (replace element), there's a leak in the control air tubing (repair), the control solenoid is defective (repair or replace), or there's no output from the controller (replace fuse or controller).
What causes Parker Dehumidifier failure to switch?
A failure to switch in your Parker Dehumidifier can be caused by a time delay setting that is too short (adjust properly, Failure to Switch option only!). It may also be related to the dryer not operating (see above).
Factory testing, arrival inspection, and damage reporting procedures.
General notes on piping, electrical connections, and installation warnings.
Essential safety measures, PPE, and handling of desiccant and condensate.
Explanation of adsorption principle and basic dryer operation.
Detailed description of the initial drying and regeneration cycle steps.
Steps for repressurizing the regenerating tower before switching.
Description of the reverse cycle where the left tower regenerates.
Steps for repressurizing after regeneration before switching.
Step-by-step guide for safely starting the dryer, including pre-checks and initial power-up.
Critical warning regarding noise and airborne particles during initial startup without mufflers.
Steps for safely isolating the dryer for maintenance or shutdown.
Routine checks to be performed daily for optimal dryer performance.
Procedure for safely replacing desiccant material in the dryer.
Troubleshooting steps for a dryer with no power or indicators.
Steps to diagnose a dryer that powers on but fails to cycle.
Identifies causes and solutions for the dryer failing to switch between towers.
Addresses issues related to the dryer's dew point performance.
Troubleshooting for excess moisture in the output air.
Diagnosing and resolving air leaks in the regenerating tower.
Troubleshooting leaking exhaust valves during drying or repressurization.
Diagrams illustrating the electrical connections for the dryer controls.
Initial setup and startup guide for dryers with the Powerloc system.
Common issues and solutions for the Powerloc system, like blank display.
Steps to follow when initiating a warranty claim or service request.
General| Brand | Parker |
|---|---|
| Model | Airtek TW 770 |
| Category | Dehumidifier |
| Language | English |
To Next Page