Phoenix 1200 - Troubleshooting Guide

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satised 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inltration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ow 1.Excessivestaticpressureloss
   a.Dirtylter 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dehumidier 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 www.UsePhoenix.com • sales@UsePhoenix.comToll-Free 1-800-533-7533
Figure B
Seal Clamp
Perimeter Seal
Unit stopped
(Fan off No
Heater)
Fan off (heater
functions)
Unit running but
humidity rises
9.4 Troubleshooting