Honeywell HM512W1005 - Deciding on the Wiring Configuration; STEP ONE: Make Power Monitoring Decision

WIRING
YouneedtodecideonthecongurationsyouwillusebeforewiringtheTrueSTEAM,Thesedecisionswillaffect
howtheconnectionsaremade,howtheDIPswitchesareset,andhowTrueSTEAMoperatesforthehomeowner.
STEP ONE: Make Power Monitoring Decision
PowerMonitoringisacongurationthatallowsTrueSTEAMtohumidifyonlywhenithasconrmationthatthe
HVACsystemtransformerhaspower.ThishelpspreventsteamfromenteringthesupplyductwhentheHVAC
systemisnotoperating.Therearetwowaystocongurepowermonitoring,dependingonthehumidity
control used:
CONFIGURATION 1• –Usingathermostatwithintegratedhumiditycontrol
CONFIGURATION 2• –Usingahumidistatseparatefromthethermostat
Which is right for you?
Beforemakingdecisionsaboutwiringcongurations:
 IunderstandwhentousetheDIPswitchesandhowtosetthemforthehumiditycontrol.
CONFIGURATION 1 — using a thermostat
with an integrated humidity control such as
VisionPRO IAQ or Prestige — is ideal for
contractors who:
 Wantsimpliedwiring–TrueSTEAM
only needs to be connected to the HUM
terminalsfromthecontrol.
Provide integrated system and accessory
controlinthelivingspace.
Are using VisionPRO IAQ or
Prestigethermostat.
Proceed to “Wiring Basics: Configuration 1”
illustration at top of next page.
CONFIGURATION 2 — using a humidistat
separate from the thermostat such as H8908
or TrueIAQ — is ideal for contractors who:
Use a humidity control separate from
thethermostat.
Wish to locate the humidity control on the
returnduct.
Proceed to “Wiring Basics: Configuration 2”
illustration at bottom of next page.
Deciding on the Wiring Configuration
TrueSTEAMHumidicationSystem69-2285EF—01
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