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1. Run the two-strand thermostat wire from the
humidifier to the transformer, from the transformer
to the humidistat, and from the humidistat to the
sail switch.
2. Cut lengths of thermostat wire to reach between
components, leaving adequate wire at both ends
for connections.
NOTE: Transformer, humidistat and sail switch can be
wired in any order.
3. At the humidifier, connect the black and white con-
ductors to the two black humidifer wires.
4. At the transformer, connect both black conductors
to the two transformer terminals. Use a wire nut to
connect together the two white conductors.
5. At the humidistat, connect both black conductors to
the two humidistat terminals. Use a wire nut to con-
nect together the two white conductors.
6. At the sail switch, connect the black and white con-
ductors to the Com and NO sail switch terminals
(NC terminal is not used).
HE220, HE260 HUMIDIFIER INSTALLATION KIT
TESTING HUMIDIFIER OPERATION
Checklist
Humidifier is level.
Starter collar is secured with sheet metal screws.
Summer shut-off damper is open (in winter position).
Control wiring was reviewed using circuit diagram.
Transformer is plugged in.
Feed line has no kinks.
Drain line slopes continuously down and ends at floor
drain.
Water hose inside humidifier is connected to
PerfectFlow™ water distribution tray.
After installation use the following steps to check the
humidifier operation:
1. Turn on the power and the water supply
2. Turn the H8908 Humidity Control to On and turn on
the heat by setting the thermostat to 10ºF (6ºC)
above room temperature.
IMPORTANT
The furnace blower must be on in to activate the
humidifier.
3. Make sure that water is flowing out of the drain
hose. If water does not flow, see Troubleshooting
Your Humidifier section.
4. Check for leaks.
5. Reset the thermostat and H8908 Humidity Control
to a comfortable setting for automatic operation.
7
69-1570
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