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d. See replacement parts list for specifics on kit numbers for

replacement desiccant.

Desiccant regeneration:

— For silica gel (“000”) units:

Pour out used Pink desiccant

onto flat pan. Place Pink desiccant in 350°F (176°C) oven for

approximately three hours or until the desiccant color has

changed back to Blue.

— For 13x molecular sieve (“X00”) units cannot be

regenerated. See page 5 for replacement kits.

— For 4A molecular sieve (“U00”) units: Pour out used

desiccant onto flat pan. Place desiccant in 600°F (316°C)

oven for up to a maximum of 3 hours.

b. Remove desiccant from oven and allow to cool down to ambient

temperature.

c. Pour desiccant back into unit bowl, periodically shaking and

tapping to settle the desiccant.

4. Replace bowl and bowl guard, or metal bowl, and clamp ring onto

the unit. Be sure clamp ring is securely locked in place before

repressurizing the unit.

Models X06, X03, X04, and X25

Inner

Step

1/8"

X03 / X04 / X25

Figure 3

Bowl

Clamp

Ring

X03 / X04 / X25

Figure 1

Keep

Covered

Figure 2

• Coalescing Filter:

Should be used prior to the manual desiccant

dryer in any lubricated compressor system which does not utilize

a system coalescing filter. The coalescing filter removes oil from

the compressed air, which prevents the oil from coating the

silica gel or mole sieve and destroying its ability to dry the air.

Oil contaminated desiccant must be replaced and disposed of

properly, as it cannot be regenerated.

• Afterfilter:

Should be used after the manual desiccant dryer

in any system where any amount of desiccant dust, however

insignificant, is undesirable. The afterfilter prevents the very

slight desiccant dusting, which occurs over time, from proceeding

downstream into the compressed air system.

• Pre-Dryers:

Both the silica gel and mole sieve manual desiccant

dryers can have their drying lives extended through the use of a

pre-dryer. The silica gel (“000”/“M00”) models will typically last

over three times as long if a refrigerated air dryer is placed in the

compressed air system prior to it. (A plant air system refrigerated

dryer will provide the same extended life.) The mole sieve (“U00”/

“MU0”) models will typically last three times as long if a silica gel

(“000”/“M00”) model dryer installed prior to the mole sieve dryer.

(A plant air system desiccant dryer will provide the same extended

life.) Users of either type of manual desiccant dryer who expect

a high air flow demand may wish to consider using a pre-dryer.

Please see page 4 for exact model recommendations.

Operation

1. The silica gel desiccant, when visible through the clear

polycarbonate plastic bowl, contains a color indicator. It changes

from Blue (meaning dry) to Pink (meaning wet) to indicate the need

to replace or regenerate the desiccant. (An X05-02-000 moisture

indicator can be used with 4A molecular sieve units to perform the

same function.) On units with metal bowls, a moisture indicator

mounted on the cover performs the same color changing function.

2. The 4A molecular sieve does not change color. For moisture

indication an X05-02-000 is recommended. See page 4.

3. Environment friendly disiccant changes color from yellow/orange

(meaning dry) to dark green (meaning wet).

3. By installing two or more units in parallel, higher dry airflows can be

achieved.

Maintenance

1. The only servicing required for silica gel units is when the desiccant

color or moisture indicator has changed from Blue (meaning dry) to

Pink (meaning wet). Should this color change occur:

Turn off and depressurize the line containing the dryer unit.

b. Loosen the clamp ring and remove the bowl from the top housing.

(Figure 1) Proceed to step 2 or 3, as required.

Desiccant replacement:

   a. Pour out used desiccant.
   b. Open new container and refill bowl. (Figure 2)
   c.   Shake  or  tap  bowl  to  settle  desiccant.  Add  or  remove  sufficient

quantity to fill Model X03 and X25 unit bowl to 1/8" below inner

step, and for Model X06 fill bowl to within 1/2" of the top. (Figure 3)

WARNING

FAILURE OR IMPROPER SELECTION OR IMPROPER USE OF THE

PRODUCTS AND/OR SYSTEMS DESCRIBED HEREIN OR RELATED ITEMS

CAN CAUSE DEATH, PERSONAL INJURY AND PROPERTY DAMAGE.

This document and other information from The Company, its subsidiaries

and authorized distributors provide product and/or system options for further

investigation by users having technical expertise. It is important that you analyze

all aspects of your application, including consequences of any failure and review

the information concerning the product or systems in the current product catalog.

Due to the variety of operating conditions and applications for these products

or systems, the user, through its own analysis and testing, is solely responsible

for making the final selection of the products and systems and assuring that all

performance, safety and warning requirements of the application are met.
The products described herein, including without limitation, product features,

specifications, designs, availability and pricing, are subject to change by The

Company and its subsidiaries at any time without notice.

EXTRA COPIES OF THESE INSTRUCTIONS ARE AVAILABLE FOR INCLUSION

IN EQUIPMENT / MAINTENANCE MANUALS THAT UTILIZE THESE PRODUCTS.

CONTACT YOUR LOCAL REPRESENTATIVE.

CAUTION

Polycarbonate bowls, being transparent and tough, are ideal for use with Filters

and Lubricators. They are suitable for use in normal industrial environments, but

should not be located in areas where they could be subjected to direct sunlight,

an impact blow, nor temperatures outside of the rated range. As with most

plastics, some chemicals can cause damage. Polycarbonate bowls should not

be exposed to chlorinated hydrocarbons, ketones, esters and certain alcohols.