MANUAL MODE
FIGURE B – Manual Mode
Manual Mode
Label and Resistor
When installed in the Manual Mode (see Figure B), 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°F the correct setting will be 35% RH. If the temperature is expected to fall to 0°F that evening, then merely reduce the setting to 25% several hours prior to the temperature change.
See Table1 for the recommendedsettings. Thesesettings,whichare basedon years of research, represent a compromise between RH levels that would be most desirable for comfort and humiditylevels that are suitable for protection of your home and to avoid condensation on your windows. For example, a wintertime indoor RH of 50% may be considered ideal for comfort, but unfortunately, it probably would result in condensation, which can cause damage to your home. Observing the recommended RH levels on your Humidifier Control is an important safeguard. Condensation of water on the inside surface of windowsin the form of foggingor frostis usuallyan indication of too much RH. This same condensation can occur in other areas in your home, possibly resulting in damage.
TABLE 1 – Outdoor Temperature/Indoor Relative Humidity
Outside Temperature | Recommended RH |
+40°F | 45% |
+30°F | 40% |
+20°F | 35% |
+10°F | 30% |
0°F | 25% |
– 10°F | 20% |
– 20°F | 15% |
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WATER PANEL CHANGE INDICATOR
The control keeps track of humidifier operation time. The yellow “Change Water Panel” light flashes after a preset amount of running time has elapsed. This running time is preset by the installer based on the humidifier model and water characteristics.
Refer to the Annual Maintenance section for instructions on changing the Water Panel or call your heating and air conditioning dealer for service. After the Water Panel is replaced, turn the Control knob to the “Test/Reset” position until the green “Humidifier ON” light flashes, to reset the Water Panel change timer.
TEST/RESET
The Test/Reset feature allows the humidifier operation to be checked even if there is no call for humidity. See “Check the Humidifier Operation” on page 9.
ADDITIONAL INFORMATION
Your humidifier is a precision system that will accurately maintain the RH in your home. For every 2°F change in outdoor temperature, the Digital Humidifier Control will automatically adjust the indoor RH by 1%.
The Digital Humidifier Control will accurately control the humidity in your home to a maximum of 45% RH and a minimum of 10% RH.
The RH Values in Table 2 are targets based on outdoor temperature and the Digital Humidifier Control setting. The actual RH may vary due to conditions in the home (cooking, showering, etc.).
TABLE 2 – % Relative Humidity Guide
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| Outdoor Temperature (°F) |
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| 0°F | 10°F | 20°F | 30°F | 40°F |
| |
| 1 | 10% | 10% | 10% | 15% | 20% | 25% | RelativeHumidity |
SettingDial | 2 | 10% | 10% | 15% | 20% | 25% | 30% | |
| 3 | 10% | 15% | 20% | 25% | 30% | 35% |
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| 4 | 15% | 20% | 25% | 30% | 35% | 40% |
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| 5 | 20% | 25% | 30% | 35% | 40% | 45% |
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| 6 | 25% | 30% | 35% | 40% | 45% | 45% | (%) |
| 7 | 30% | 35% | 40% | 45% | 45% | 45% | |
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