Honeywell TrueSTEAM HM612A1000/U Installation Manual page 60

B: Advanced Steam Humidifier Wiring
OPTION 5: Prestige IAQ with fan delay
• Follow this diagram if you are using Prestige IAQ with Steam Humidifier's fan-delay feature.
• The system fan will turn on when the water temperature reaches 176°F (80°C).
1
On
Off
58
THX9421R
2
3 4 5 6
AFS Monitor Recommended
THM5421R
Prestige IAQ and steam humidifier with fan delay
R
C
W
W2
Y
G
Furnace
24V
24V
HUM
HUM
C
GT
R
AFS
RT
GF
EXT
Steam Humidifier
Steam Humidifier System 69-2285—11
M32918B