Phoenix 1200, Owner'S Manual

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Note: The direction of the perimeter
seal should be so the outside
overlap is pointing in the direction
of rotation. (If you have questions,
contact Phoenix.)
5. Remove the old divider seal.
Install new divider seal using
original metal screws and
seals retainers. (Ref Figure B).
Figure A
Troubleshooting Guide
Trouble Probable Fault Probable Cause Corrective Action
Power and control failure 1. Main power off Check line and main power supply
2. Control power off
a. Control circuit fuse blown a. Replace fuse
b. Faulty control transformer b. Replace transformer
c. Control switch open c. Close or replace switch
d. Humidistat satisfied d. Turn down to lower setpoint
e. Faulty control elements e. Check and repair or replace as req’d
Power or mechanical 1. Blown motor fuse Replace control circuit fuse
failure 2. Bad Contactor Repair or replace
3. Burned out motor Repair or replace
4. Failures of fan motor Repair or replace as req’d
Excessive infiltration of 1. Excessive unconditioned make-up air Reduce make-up air
humid air into the 2. Leaking ducts and/or air handling equip. Seal leaks
controlled space outside controlled space
3. Access openings to space not sealed Close and/or seal
4. Space not vapor tight Seal with paint and/or vapor barrier
Faulty humidity controls 1. Humidstat
a. Improper adjustment a. Readjust
b. Defective b. Replace
Inadequate air flow 1. Excessive static pressure loss
a. Dirty filter a. Clean or replace
b. Obstruction at inlet, outlet or ducting b. Remove obstruction
c. Clogged desiccant media c. Remove and replace media
(High pressure drop across media)
Inadequate or no 1. Element burnout Replace.
reactivation heat 2. Low voltage Correct power supply
3. Faulty control elements Check, repair, or replace
Air seals and gaskets 1. Air leakage into dehumidifier Replace panel gaskets and seals
2. Air bypassing media or leaking seals Check media position, replace seals
Ineffective desiccant 1. Media drive failure
media a. Belt a. Repair or replace
b. Motor b. Repair or replace
2. Damaged desiccant media Repair or replace
3. Contaminated desiccant Clean or replace rotor
Divider Seals
6
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Figure B
Seal Clamp
Perimeter Seal
Unit stopped
(Fan off No
Heater)
Fan off (heater
functions)
Unit running but
humidity rises
9.4 Troubleshooting