Diamond Systems Tritan Guía para resolver problemas descargar pdf (Pagina 30)

Dryer troubleshooting guide

For more detailed information, see the “Troubleshooting guide” on page 39.

Problem Possible cause Corrective action

High dew point

(wet air)

Desiccant worn out or saturated Dry cycle machine or replace desiccant.

Incorrect desiccant type Replace desiccant with type and size

recommended by dryer manufacturer.

Regeneration heaters burned out Replace heaters.

Regeneration ﬁlter plugged Clean or replace ﬁlter.

Regeneration blower reversed Reverse electrical connections.

Air leaks Check and repair auto loader seal and/or hoses

to hopper.

Beds not changing at the proper time Reset or repair controller.

Return air too hot Add or repair aftercooler.

Low airﬂow

Dirty air ﬁlter Clean or replace ﬁlter.

Fan motor reversed Reverse electrical connections.

Hoses reversed between inlet and outlet Connect dryer outlet to inlet at the bottom

of the hopper.

No hose clamps; hose disconnected Connect and clamp hoses.

Hose smashed or cut Repair or replace hose.

Short residence time

Hopper too small Use larger hopper.

Hopper not full Keep hopper full.

Tunneling or “rat holes” Remove clumped material or install proper

spreader cones.

Temperature high or

low (or varying more

than ~3°C [~5°F])

Incorrect temperature setting Set correct temperature.

Temperature controller malfunction Calibrate or replace temperature controller.

Dryer not designed to maintain correct range Repair or replace dryer.

Thermocouple loose or malfunction Repair or replace thermocouple.

Heater malfunction Repair or replace heater.

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Diamond Systems Tritan Guía para resolver problemas Pagina 30