Installation Guide
69-2271EFS—01 2

VisionPRO IAQ Total Comfort System (YTH9421C1010)

•Controlsbothheating/coolinganddehumidification.
•Sensorincludedfordisplayingoutdoor temperature.
•Intuitiveuserinterfaceforeasy 7-daytemperatureprogramming
•Easy-to-readbacklitdigitaldisplay.
•Maintenanceandservicereminders.
•Controlsotherindoorairqualityequipment whenyou’reready.
TheTrueDRYDH150maybeusedwithoneofthefollowingexternalcontrols:

TrueIAQ Digital Control (DG115EZIAQ)

•Automaticadjustmentsmaintainidealhumidity.
•Sensorfordisplayingoutdoortemperatureand humidity.
•Showsactualanddesiredhumiditysettings.
•Advancedventilationprogrammingincludeseconomizingand extreme
condition shutdown.
•Maintenanceandservicereminders
•Controlsotherindoorairqualityequipment whenyou’reready.
Control Options

Manual Dehumidistat (H8908DSPST) and Automatic Ventilation

Controls (W8150A1001)

•Manualhumiditycontrolwithintuitivecomfort settings.
•Integratedhumiditychartforaccurate controlinchangingoutdoorconditions.
•AutomaticW8150ventilationcontroltoASHRAE industrycode,orfor
continuous operation.