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Resumen del manual
If you would like to determine the RH in your home, follow these steps: 1. Determine the outdoor temperature. 2. Activate the furnace blower by setting your thermostat fan switch to the “On” position, or setting your thermostat to a higher temperature. 3. Turn the control dial setting to 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, make note of the dial setting. 4. Locate your dial setting on Table 2. Follow the dial setting to the right until it intersects with the current outdoor temperature. This is the relative humidity in your home under existing conditions. 5. Return the thermostat and the control to their original settings. (Table 2) % Relative Humidity Guide Outdoor Temperature (.F) Dial Setting -10 0 10 20 30 40 1 10 10 10 15 20 25 2 10 10 15 20 25 30 3 10 15 20 25 30 35 4 15 20 25 30 35 40 5 20 25 30 35 40 45 6 25 30 35 40 45 45 7 30 35 40 45 45 45 As an example, if the outdoor temperature is 20. F, and, following step 3, the humidifier turns off at “5” on the dial range, then the RH in your home is 35%. The Automatic Humidifier will accurately control the humidity in your home to a maximum of 45% RH and a minimum of 10% RH. The values of outdoor temperature and dial settings may fall in between or outside of the listed values in Table 2. In these cases, you can only approximate your home’s actual indoor RH. - 4 Manual Humidistat: (Automatic Humidifier Control – see pg 3) Your new Aprilaire Humidifier is controlled by a humidistat installed either in the living area or in the cold air return. It is important to anticipate a drop in outdoor temperature and reduce the setting accordingly to avoid excessive condensation. For example, with an outdoor temperature of 20° the correct setting will be 35% relative humidity. If the temperature is expected to fall to 0° that evening, then merely reduce the setting to 25% several hours prior to the temperature change. The recommended settings on the humidistat are based on years of research (see table 3) and experience as to what is best for the average home. These settings represent a compromise between RH levels that would be most desirable for comfort reasons and humidity levels that are suitable for protection of your home. For example, a wintertime indoor RH of 50% may be considered ideal, but unfortunately, it probably would result in damage to your home. Observance of the recommended RH levels on your humidistat, therefore, is an important safeguard. Condensation of water on inside windows in the form of fogging or frost is usually an indication of too high relative humidities. This same condensation can take place in other areas in your home with the possibility of damage resulting. (Table 3) Outdoor-Indoor Relative Humidity Outside Temperature Recommended RH +40° +30° +20° +10° 0° –10° –20° 45% 40% 35% 30% 25% 20% 15% The humidistat is a precision instrument that can be used to determine the RH accurately in your home during the winter. Turn the dial to the lower setting, then reverse the dial direction slowly until a “click” is heard. At this point, read the RH on the dial. This will be very close to the actual RH in your home. - 5 To check the humidifier operation, set the humidistat above the click point, make sure that the water saddle valve is open and that there is electricity to the unit. Generally, with all models except the 350 and 360 Aprilaire Humidifiers, the furnace blower motor must be operating for the Aprilaire Humidifier to function. After the humidifier has operated for several minutes and water is entering the unit and coming out at the drain, reduce the humidistat setting below the click point and the unit should automatically shut off. Now set the humidistat dial at the recommended inside relative humidity, depending on the outside temperature. Fol...
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