AirTek TW40 Handbuch für Installation, Betrieb und Wartung - Seite 12

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15. A.

Complaint:

DRYER NOT OPERATING:

FAILURE TO SWITCH ALARM (Optional):

OUTLET DEWPOINT HIGH:

MOISTURE DOWNSTREAM:

EXCESSIVE AIR LOSS ON REGENERATING TOWER:

EXHAUST VALVE LEAKING DURING

REPRESSURIZATION:

EXCESSIVE PRESSURE DROP:

AIRTEK

4087 WALDEN AVENUE, LANCASTER, NY 14086

TROUBLE SHOOTING GUIDE:

Possible Cause & Repair:

A: No Lights On:

B: Lights On, Dryer Does Not Switch:

Blown control fuse: Replace fuse.

No power: Apply correct power.

Solid State Controller inoperative: Replace

Dryer in PowerLoc Mode

Dryer in CycleLoc Mode

Time delay setting too short. Adjust properly.

See dryer not operating

Dryer not cycling: See Dryer not operating.

Incorrect purge rate: Adjust purge flow.

Capacity of dryer being exceeded: Adjust inlet

flow, pressure & temperature to within specified

operating parameters. High flow, low pressure or

high temperature will all adversely effect dryer

performance

Liquid water present at dryer inlet: Check water

level in separators, receivers, prefilters &

operation of associated y-strainers and auto

drains. Check condition of filter elements or

check D.P. Gauges.

Desiccant worn out, contaminated or insufficient

quantity: Replace or top off.

Back pressure in regenerating tank: See below.

Leaking bypass valve: Remedy.

Undried air from another source mixing down

stream of dryer: Remedy.

See Outlet Dewpoint High.

Purge set too high. Check specifications &

adjust.

Check valve leaking: Repair, clean or replace.

Inlet valve leaking or not functioning: See Below

Defective controller: Repair or replace.

Valve dirty or defective: Clean or replace valve.

False signal from control board: replace

Prefilter dirty: Replace element

Afterfilter dirty: Replace element

Desiccant dirty: Replace Desiccant

Excess flow: Reduce flow to within specs.

Tel: (716) 685-4040

Pg. -12-

Fax: (716) 685-1010