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NOTE:
The humidifier control will operate properly with either a switched or continuous power source. Whether you are using
accessory terminals or an external transformer, a minimum 10 VA is required
STEP 9: Connecting to the Humidifier
Strip the wires used for all the humidifier control terminal connections 1/4".
If furnace accessory terminals are used, wire the solenoid valve directly to the “Out” terminals on the humidifier con-
trol. Also attach a jumper wire to the Wire Connector, as shown in Figures 6 and 7. Do not use a Model A50 relay
.
NOTE: See the furnace manual for operation of accessory terminals.
If an external transformer is used, connect a Model A50 relay in series with the solenoid valve and the “Out” terminals
on the humidifier control. This will allow the humidifier to operate only when the furnace blower is on. (See Figure 6-8 to
determine the correct wiring for your model humidifier).
MODELS
2000
2001
55
MODELS
45
86
90
190
Figure 8
MODELS
60
2002
Figure 6
Figure 7