TABLE 3 –
Outside Temperature |
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+40°F |
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| 45% |
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+30°F |
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| 40% |
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+20°F |
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| 35% |
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+10°F |
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| 30% |
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0°F |
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| 25% |
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– 10°F |
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| 20% |
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– 20°F |
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| 15% |
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Your Aprilaire Humidifier Control |
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FIGURE B |
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is a precision instrument that can |
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be used to determine the RH |
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| 40 F |
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| 45% |
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accurately in your home during |
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the winter. |
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To do this, follow these steps: |
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1. Activate the furnace blower by |
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setting your thermostat to a |
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higher temperature. |
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2. Turn the control dial setting to |
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| 15% |
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the “Off” position. Then, slowly turn the dial clockwise until you
hear the solenoid valve “click on.” Next, slowly turn the dial counter clockwise until you hear the solenoid valve “click off.” At this point, read the RH on the dial. This will be very close to the actual RH in your home. (See Figure B)
To check the humidifier operation, set the knob to “Test/Reset”, make sure that the water saddle valve is open and that there is electricity to the unit. The furnace blower motor must be operating and the furnace calling for heat for the Aprilaire Humidifier to function. Note: Turning the knob to “Test/Reset” resets the “Change Water Panel” internal timer. After the humidifier has operated for one minute and water is entering the unit and coming out at the drain, reduce the humidistat setting to the recommended inside relative humidity, depending on the outside temperature. DO NOT LEAVE IN TEST MODE AS HUMIDIFIER WILL NOT OPERATE. Follow the suggested settings prior to a drop in the outside temperature.
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