Sterling SDAA 25-100 specifications Consult local disposal regulations for more information

Figure 11: Desiccant Bed Location and Disassembly

Desiccant Cap

13X Molecular Sieve

8x12 Beads

Regeneration Heater

Regeneration

Thermocouple

(2) 4-40 screws

Hi Temperature

Snap Switch

Undo (4) 10-32 Button

Head Screws using 1/8

Allen Wrench

1" Wide x 1/8" Thick Silicon

Strip and Stick Gasket

16 Mesh 0.028 Diameter Wire

Stainless Steel Screen

1" Wide x 1/8" Thick High

Temperature Gasket

Caution! You should properly dispose of any discarded desiccant.

Consult local disposal regulations for more information.

Inspect each lower desiccant screen for tears or holes where desiccant burned-through. Replace as needed.

After cleaning each chamber, add a level layer of half the 8 x 12 bead desiccant on top of the screen. Next, carefully add the full amount of bead desiccant specified per bed. Amounts are listed in the Desiccant Amounts Table below. Smooth the top level, and finally add another layer of the remaining bead desiccant to the top. Make sure this layer is level and smooth.

Repeat the previous step for the other bed.

Inspect the gaskets on the valve assembly. Replace if necessary. Re-install the valve and reconnect actuator wiring.

Figure 12: Required Desiccant Amounts

	Dryer	8 x 12 bead Total
	model	Part no.	lbs.	Kg
	15 cfm	W00018051	4.75	2.15
	30 cfm		12.25	5.56
	60 cfm		27.5	12.5
Dehumidifying Dryers	Chapter 5: Maintenance				46 of 59