Specifications

General Description
EquipmentwithSimplicity®asstandardshallbefactoryrun-
testedthroughtheunitcontroller.Allcontrolwiringpointsshall
betestedandverifiedthroughcommunication.
TheunitcontrollershallbeULorCSArecognized.Theunit
controllershallbemanufacturedinamanufacturingfacilitythat
iscertifiedtoISO9001.
AbriefdescriptionoftheIntelli-ComfortIIboard'sI/Oterminals
thatareusedfollows:
Name Type Signal Description
DUCTPRES AnalogInput 0-5VDC Factory-installedductstaticpressuretransducerlocatedintheunit'scontrol
box
BLDGPRES AnalogInput 0-5VDC Factory-installedbuildingstaticpressuretransducerlocatedintheunit's
controlbox
OH AnalogInput 0-10VDC Field-installedoutdoorairrelativehumiditysensorforsingleordualenthalpy
economizerconfiguration
RH AnalogInput 0-10VDC Field-installedreturnairrelativehumiditysensorfordualenthalpy
economizerconfiguration(usedwithOH)andreheatcontrol.
DH AnalogInput 0-10VDC Field-installedsupplyairrelativehumiditysensor,usedformonitoringduct
humidity.
IAQ AnalogInput 0-10VDC Field-installedcarbondioxidesensorwhichmonitorsindoorairquality(CO2
concentration)andenablescallforDemandVentilationmodeforunits
installedwitheconomizeroption.
QAQ AnalogInput 0-10VDC Field-installedcarbondioxidesensorwhichmonitorsoutdoorairquality
(CO2concentration)and,alongwithIAQ,enablescallforDifferential
DemandVentilationmodeforunitsinstalledwitheconomizeroption.
SAT AnalogInput 10KType3
Thermistor
Factory-installedtemperaturesensorlocatedintheunit'ssupplyair
compartment.
RAT AnalogInput 10KType3
Thermistor
Factory-installedtemperaturesensorlocatedintheunit'sreturnair
compartment.
OAT AnalogInput 10KType3
Thermistor
Factory-installedtemperaturesensorlocatedintheoutdooraircompartment
ormountedwithintheevaporatorbaserailforunitswithouttheinstalled
economizeroption.
ST AnalogInput 10KType3
Thermistor
Field-installedspacetemperaturesensor.Unoccupiedoverride
accomplishedbyshortingSTandC.
SSO AnalogInput 10KType3
Thermistor
Field-installedspacetempsensorwithoverride(0-20Kwith10Kbeingno
offset).
APS BinaryInput 24VAC Field-installedairprovingswitchwhichmonitorsthepressuredifference
acrosstheindoorblower.(couldbeusedwithcurrentsensingswitchorsail
switch)
DFS BinaryInput 24VAC Factory-installedorfield-installeddirtyfilterswitchwhichmonitorsthe
pressuredifferenceacrosstheunit’sfilters
PUR BinaryInput 24VAC Buildingpurgecallsfromanexternalsource
OCC BinaryInput 24VAC Usedtosetthebuildingoccupancystatusfortheunitcontroller
LIMIT2 BinaryInput 24VAC Confirms2nd-stagegasheatoperationorreceivesanerrorsignalfromthe
variablefrequencydrive.
UnitarySalesToolv1.5.8.0 Informationissubjecttochangewithoutnotice.Checklocalcodes. Printed10/20/2014

SIMPLICITY® Intelli-Comfort II
Page:9
