Honeywell Steam Humidifier - Page 34

WIRING
IMPORTANT NOTE: The images below are not complete wiring diagrams. It only depicts power monitoring and is not
meant to be a stand alone diagram. Please refer to the “Wiring the steam humidier” section in the following pages for
complete wiring diagrams.
WIRING BASICS: CONFIGURATION 1
When using a thermostat with integrated
humidity control (such as VisionPRO IAQ
or Prestige):
• A thermostat controls the fan and steam
humidier. The control will not allow steam
production unless the system fan
is on.
• Wire Thermostat G to the HVAC system G
as normal.
• Wire steam humidier HUM terminals to
the system HUM terminals.
WIRING BASICS: CONFIGURATION 2
When using a humidistat separate from the
thermostat (such as H6062 or TrueIAQ):
• The external humidity control does not
monitor or control the system fan. Steam
humidier must conrm that the fan has
power before allowing humidity.
• Break the thermostat G to HVAC system
G connection. Wire thermostat G to steam
humidier GT. Wire steam humidier GF to
HVAC system G.
• Thermostat G calls will pass directly
through steam humidier. If this signal is
not present, and humidity is needed, steam
humidier will relay power from its RT
terminal to GF and out to HVAC system
G to ensure the fan has power for
humidity calls.
Thermostat with
Humidity Control
HVAC System
Steam Humidifier
1
HUM
HUM
2 3
R
C
M29617A
Humidity Control
Thermostat
Steam Humidifier
HVAC System
HUM
HUM
R
G
GT
GGF
M29618B
Steam Humidier System 69-2285—09
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