Ingersoll-Rand HC-103, Руководство пользователя

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USER MANUAL
Series HC
Reference IR - 222 Rev 3
Page 36 10/17/2013
SECTION 4: (Continued)
4.2.2
To replace used desiccant

To replace used desiccant, do not attempt any maintenance while dryer is
pressurized.

First, isolate the dryer (if bypass valving has been installed), or shut off
compressor, turn off dryer, then slowly depressurize the dryer.

Drain desiccant from tower by removing the plug at the bottom of the tower or
by using a vacuum after removing the nuts, bolts, yokes, cover, and gasket
from the manway at the top of the tower (on large towers with manways).
Catch the old desiccant in a suitable container.

When the tower is completely drained, and if not already removed, remove the
nuts, bolts, yokes, cover, and gasket from the manway at the top of the tower
(on large towers with manways).

Remove plug from the desiccant fill (on small towers with threaded desiccant
fills).

The tower can be blown clean with an air hose or may be washed out with a
water hose, if desired, but time must be allowed if this is done to completely
dry the tower before refilling it with desiccant.

Replace drain plug in bottom of the tower.

Refill the chamber with the specified desiccant. Refer to the spare parts list for
desiccant quantity.

Do not tamp the desiccant.

Replace the manway cover components or the pipe plug and tighten.

Repeat process for the other tower.

Make sure all drain and fill ports are in place and properly tightened. Soap test
for leaks before returning the dryer to service.

Slowly repressurize the dryer and turn on.
4.3 DEW POINT METER MAINTENANCE (DPDS Option only)
NOTE: Refer to the DPDS Instruction Manual included with this User
Manual (see Section 7) for information on dew point meter
maintenance and operation.