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Deciding on the Wiring Configuration
Before making decisions about wiring configurations:
I understand when to use the DIP switches and how to set them for the humidity control.
Steam humidifier wiring is different from evaporative pad humidifier wiring. In addition to solenoid water valve
actuation, steam humidifier can monitor system power and regulate system fan operation.
You need to decide on the configurations you will use before wiring the steam humidifier, These decisions will
affect how the connections are made, how the DIP switches are set, and how steam humidifier operates for the
homeowner.
STEP ONE:
Make Power Monitoring Decision
Power Monitoring is a configuration that allows steam humidifier to humidify only when it has confirmation 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 configure 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
CONFIGURATION 1 — using a thermostat
with an integrated humidity control such as
VisionPRO IAQ or Prestige — is ideal for
contractors who:
Want simplified wiring – steam humidifier
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.
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CONFIGURATION 2 — using a humidistat
separate from the thermostat such as H6062
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.
Steam Humidifier System 69-2285—11
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Troubleshooting
