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Fan belt and pulleys -
Check fan belt condition and tension to
ensure it does not slip on pulleys.
Do Not Over Tighten as bearing damage can occur. If the
belt shows signs of excessive wear or damage, replace as
necessary. Check to ensure pulleys are secure.
8 Drive Motor
The media drive motor is permanently lubricated and requires
no maintenance.
8.1 Rotor Drive Belt
A spring loaded tensioner keeps the belt sufficiently
tensioned. Check the belt for signs of excessive wear.
Replace as necessary. If additional tension is required, simply
move the tension spring to a more extended hole as required.
8.2 Seals
All of the high temperature seals which separate the process
and reactivation compartments, are manufactured specifically
for Phoenix. Normally, the seals will not require service
or replacement. However, should damage occur, or if poor
performance as the result of an air leak is suspected, the
following inspection must be performed to determine whether
the seals should be replaced:
Inspection:
1. Turn the unit off and remove the access covers.
2. Visually inspect for gaps between the desiccant media
and the seals.
3. If significant gaps, wear, or damage are observed, the
seal needs to be replaced.
8.3 Desiccant Media
The silica gel desiccant media supplied with the dehumidifier
will last indefinitely under ideal conditions. Due to the nature
of desiccants they make very good filters. The life of the
desiccant is directly related to the airborne contaminates
passed through it. Atmospheric contaminants, exposure to
acidic gases/or air streams, and contact with petroleum
based airborne particles can reduce the efficiency of the
desiccant media. Although the desiccant media is considered
a cleanable/washable media, the preferred method of
cleaning is to blow dust out with compressed air. Washing
the media is not recommended as wash water impurities
may contaminate the desiccant. Proper filtration and
preventing contact with chemicals will greatly improve the
life of the desiccant. Inspect the face of the media to see
that no surface damage has occurred. If damage is noticed,
please contact Phoenix for assistance. The rotor should turn
smoothly upon the shaft, if not check the support bearings.
9 Dehumidifier Service
Instructions
9.1 Removing Desiccant Rotor
Desiccant rotor removal is accomplished as follows:
1. Shut off all power.
2. Remove side access covers.
3. Push tensioner to loosen belt and remove from drive
pulley. Allow belt to hang from the rotor.
Remove drive motor pulley, drive motor, and tensioner.
Note: The rotor may be removed from the reactivation side to
eliminate the need to remove the drive components.
4. Support rotor as necessary with a block of wood or
similar device. Remove the cap screws securing the
rotor center shaft.
5. Pull on drive belt to slide media slightly toward the front
(process side) of the unit. Remove the rotor shaft and
shaft washers.
6. Remove the rotor from the cabinet by pulling on the
drive belt.
To re-install media, reverse the above procedure.
NOTE: Drive belt must be around perimeter of media before
re-installing! Make sure the seal does not roll off of the
divider during media installation. Carefully push perimeter
seals into place (roll out on rotor panels) with a putty knife
or similar tool. Be careful not to cut or damage seal. This can
be assisted by rotating the rotor as the seal is smoothed into
place.
9.2 Changing Seals
1. Follow procedure for removing media.
2. Remove the clamp ring holding the seal in place by
loosening one of the clamp screws.
3. Remove seal from media.
4. Repeat above steps for opposite side.
9.3 Installing Seals
1. Replacement seals as shipped from the factory require
field fitting (cutting to length).
2. Dry fit the seal to perimeter and divider panel length.
Cut replacement seals to length of original seals.
3. Ensure that the cassette face panels are clean.
4. Apply the perimeter seal around wheel. Approximately
1/2” of seal will extend past the face of the rotor.
Install clamp and loosely tighten. Adjust seal and clamp
position as required and tighten clamp screws. Repeat
this procedure for the opposite face. (Ref. Figure A).