Sterling SDA 150-380 Manuel D’Utilisation

 

 

Cabinet Series Dehumidifying Dryer 

 

14 

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  Remove the cap plugs from the inlet, discharge and bleed tubes before operation. 

;

  Use high-temperature flexible dryer hose to connect the dryer to the drying hopper. 

;

  Keep the delivery hose as short as possible to minimize heat loss.  Insulated dryer hose is 

available for maximum energy savings. 

;

  Do not shorten the return hose. 

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  Make sure the hoses are not kinked. 

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  Drying hopper air inlet and outlet locations vary from one drying hopper model to 

another, but always connect the hoses so the dry process air from the dryer enters the 
bottom of the drying hopper and flows out the top to return to the dryer inlet.   

High temperature applications (300

°F to 400°F / 148°C to 204°C) require aftercoolers to cool 

moist air returning to the dryer from the drying hopper. An aftercooler cools the return air by 
100

°F (38°C); this maintains dryer efficiency and condenses unwanted plasticizers from the 

airstream. Aftercoolers are also required in extremely low temperature applications.    

•  Use the ½” (about 13 mm) brass pipe nipples for water line connections. Inlet 

and outlet line positions do not matter. 

•  Make sure you grip the nipple tightly when attaching a fitting. Doing so prevents 

damage to the soft copper coils. You should make connections with flexible hose 
to allow removing the coil assembly for cleaning. 

•  The aftercooler is designed to utilize either tower or city water as warm as 85ºF 

(29ºC). Recommended flow rate is one to three (1 to 3) gallons per minute (4 to 
11 liters per minute). 

Rust preventative has been applied to internal unfinished surfaces. Remove rust inhibitor before 
using the drying hopper. 

Using a non-water based degreasing agent, clean all inside surfaces of the drying hopper. Allow 
components to dry thoroughly.    

Inspect the inside of the drying hopper for loose connections, foreign objects, or a blocked 
diffuser. 

The air trap assembly in the top of the drying hopper prevents ambient air from contaminating the 
material being dried. 

;

  Keep the material level at the mid point of the air trap for maximum efficiency. 

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  Use a hopper loader or vacuum conveying system to maintain the proper material level.