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INSTALLATION INSTRUCTIONS
CONTROL WIRING
The Steam Humidifier may be connected directly to the humidistat terminals on any Connected Thermostat Controls . If not using a Connected
Control, install manual humidifier control with the Blower Activation Relay . See Figures 13, 14, 15 for wiring options .
The control circuit operates on 24 VAC . Install manual humidifier control and blower activation relay as shown in Figure 12 . If protection from
over-humidification is desired, install optional high humidity limit switch at least 4 feet downstream of the dispersion tube .
FIGURE 12 – Wiring with Manual Humidifier Control
REMOVE WIRE
TYPICAL 24 VAC
"G" TO "G"
TERMINAL STRIP
THERMOSTAT
IN FURNACE
NOTES:
1. 18AWG WIRE IS ACCEPTABLE FOR 24V INSTALLATIONS.
2. "FAN PACK" TERMINALS PROVIDE 24 VAC ON CALL FOR HUMIDITY AND REMAIN ENERGIZED FOR
TWO MINUTES AFTER CALL IS SATISFIED.
(CONTINUED)
BLOWER ACTIVATION
RELAY
WHITE/YELLOW
WHITE/BLUE
MANUAL
HUMIDIFIER
CONTROL
STEAM
HUMIDIFIER
(OPTIONAL)
HIGH HUMIDITY
LIMIT SWITCH
90-1706
17
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