Using The Correct Control Diagram - Honeywell Steam Humidifier Professional Installation Manual

Using the Correct Control Diagram

CAUTION: Voltage Hazard.
Before wiring to HVAC terminals, disconnect HVAC equipment power. Make sure steam
humidifier is not plugged in.
Follow the diagram for control options 1 through 14 to wire the steam humidifier. Refer to the installation manual
provided with the control for additional instructions if needed.
HumidiPRO
R
HVAC
C
U
U
R C W Y G
S
S
RECOMMENDED
AIR FLOW SWITCH (AFS)
R Rc W Y G
1
THERMOSTAT
NOTE: Advanced Wiring diagrams are shown in Appendix B
beginning on page 55.
Steam Humidifier System 69-2285—09
Inside
Setting
%
%
HUMIDITY BOOST
Light System
Auto
Next Auto
OUTDOOR
SENSOR
(OPTIONAL)
STEAM HUMIDIFIER
24V
24V
HUM
HUM
C
GT
R
RT
GF
EXT
OPTION 1: Dry-contact Mechanical
Humidistat Wiring
Make sure that the thermostat used
1
isolates Y from G. All Honeywell Prestige,
VisionPRO IAQ, VisionPRO, and Focus Pro
thermostats do this.
1 2
On
Off
AFS Monitor Recommended
M34831A
3 4 5
6
M32913
35