Sterling STT 300 operating instructions Maintenance, Return air filter

STT 300

Return air filter

Loosen the securing nut on the return air filter housing and remove the housing lid.

Remove the return air filter.

Clean the return air filter with compressed air from in- side to out or renew the filter. Never knock the return air filter on the floor.

Clean the return air filter housing. Use lint-free clea- ning rags.

Re-install the cleaned/new return air filter.

Mount the lid and fasten the securing nut.

Close the panel.

Return air filter	Regeneration air filter
Filter of the electrical cabinet

STT 300

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Never operate the dryer without return air filter.

The dryer can’t be put into operation if the panel is not replaced.

Order number return air filter if operated

with return air cooler:	ID 88226
without return air cooler:	ID 86378

SM2-615

Maintenance 5-5