448
MAINTENANCE INSTRUCTIONS for APRILAIRE HUMIDIFIER MODELS 445-448
MODELS 445-
WARNING! 120 volts may cause serious injury from electrical shock. Disconnect power and shut off water supply before servicing.
1.Note humidistat or Humidifier Control setting and turn dial to the “Off” position.
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2. Disconnect electrical power and turn |
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off water supply. | MODELS |
3. Remove two aluminum knobs (1), | 440, 445 & 448 |
swing up and remove top cover (2) |
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from humidifier. |
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4.Place finger under plastic water nozzle (3) at top of water distribution tray (4). Lift up to pop outlet loose from hole and notch in distribution tray.
5.Tip forward and lift the complete plastic framed evaporative section out of the humidifier.
1.Cover Knob
2.Top Cover
3.Feed Nozzle
4.Distribution Tray
5.Metal Frame
6.To remove plastic water distribution tray from evaporative
section, push down on pan and out on plastic frame (Scale Control Insert). Follow instructions below depending upon the type of distribution tray in your humidifier. For trays with a synthetic fabric liner: Lightly scrape out or brush off any mineral deposits, being careful not to stretch or loosen the synthetic fabric liner. Soaking the tray in vinegar or a
For trays with granular coating: Do not scrape off the granular coating, but lightly scrape out any mineral deposits and clean the “V” notches. This textured surface helps ensure even water flow for maximum performance. See page 3 if removed.
7.Remove Water Panel evaporator and Scale Control Insert. Remove Water Panel evaporator from Insert and clean insert by flexing or using putty knife. Inspect Water Panel evaporator and replace with a new Water Panel evaporator, if necessary, with colored spot up.
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9.See page 15 for reservoir and pump cleaning.
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