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Maintenance instructions for models mounted on the face of a vertical return
duct, side of a horizontal return duct, or mounted behind a wall using
discharge extension
Your humidifier is constructed from quality materials to assure superior
performance during normal operation. The motor bearings are permanently
lubricated and do not require oiling. The motor is also thermal overload
protected against extreme conditions.
To clean the unit:
1. Turn the power to the furnace OFF or turn off the electric switch to the
humidifier, if provided.
2. Disconnect the humidifier motor leads.
3. Turn off the humidifier water supply from the saddle valve and remove
water line from humidifier.
4. Remove the humidifier from the wire mounting bracket.
5. Remove the discharge dome from the humidifier by pressing on the sides
of the dome and lifting upward.
6. Lift the entire atomizing assembly from the water reservoir pan.
7. Remove the pump from the end of the impeller shaft. If the pump is stuck
in the motor drive shaft, run hot water over the end of the shaft for a
few seconds to loosen the pump.
8. Flush water through the impeller tube, ensuring that the six holes at the
top of the impeller tube are open and clear of mineral deposits. A pipe
cleaner works well for this cleaning operation.
Note: The impeller tube and pump can become clogged by algae
formations prevalent in certain water sources. The addition of 10 drops
of bleach to the water reservoir pan each week is advisable.
9. Replace the pump into the impeller shaft.
10. Carefully rotate the impeller to ensure it turns freely. Do not force the
impeller shaft to turn or breakage could result.
11. With the atomizing assembly removed, clean the water reservoir pan
thoroughly. We suggest either a water/white vinegar solution or liquid
humidifier cleaner.
12. Reassemble and remount the humidifier by reversing steps 6, 5, and 4.
13. Reconnect the water line and motor leads to the humidifier, turn on the
water supply from the saddle valve and restore electrical power.
Maintenance