Aprilaire 600M Manual Mode, Water Panel Change Indicator, Test/Reset, Additional Information

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MANUAL MODE

FIGURE B – Manual Mode

90-1236B

When installedin the ManualMode (see Figure B – internalswitch in “MAN” position and “M” in the display),it is important to anticipate a drop in outdoor temperature and reduce the setting accordingly to avoid excessive condensation. For example, with an outdoor temperatureof 20°F the correct setting will be 35% RH. If the temperatureis expectedto fallto 0°F,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 humidity. 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%

 

 

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 hardness.

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.

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

 

 

 

Outdoor Temperature (°F)

 

 

 

 

-10°F

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%

 

 

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%

 

 

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Contents Humidifiers Introduction Table of ContentsPrinciple of Operation Automatic Mode Digital Humidifier Control Indicator LightsOperating Instructions Models 400, 500, 600 Blower ActivationWater Panel Change Indicator Manual ModeTEST/RESET Additional InformationCheck the Humidifier Operation Operating InstructionsDigital Humidifier Control Manual Humidifier ControlAnnual Maintenance Effect of Water CharacteristicsControl in Test Mode or Humidifier will not Operate Additional Informationfor ALL ModelsAnnual Summer Shutdown Periodic Preventative MaintenanceWater Line Inspection and Service Instructions Series Model Warranty Registration Limited Warranty
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500M, 600M specifications

Aprilaire is a leading brand in the field of indoor air quality, and its series of humidifiers like the 600A, 700M, 400A, 500A, and 600M have been designed for optimal performance and user convenience. These humidifiers are engineered to maintain ideal moisture levels in your home, which is especially important during dry winter months.

The Aprilaire 600A is an advanced model equipped with automatic humidity control. This feature enables the humidifier to adjust moisture levels based on the outdoor temperature, ensuring a comfortable indoor environment throughout the changing seasons. The 600A is also easy to install and integrates seamlessly with your home’s HVAC system, supplying humidity throughout the entire house.

In contrast, the 700M is a manual humidifier option that offers flexibility in controlling humidity levels. This model is particularly suitable for homeowners who prefer a hands-on approach. The 700M can deliver up to 0.75 gallons of moisture per hour, making it effective for larger homes or spaces where humidity needs to be closely monitored.

The Aprilaire 400A and 500A models are geared towards versatility and space efficiency. The 400A, designed for homes with lower humidity requirements, operates quietly and offers a less invasive installation. It is suitable for areas up to 4,000 square feet, making it ideal for many average-sized homes. The 500A, on the other hand, is particularly designed for homes with a higher demand for moisture, providing consistent humidity control for larger spaces.

The Aprilaire 600M is another manual option that combines a straightforward user interface with robust performance. Similar to the 700M, it allows users to manually adjust humidity levels but features a slightly superior output rate.

One of the standout characteristics shared among these models is their ability to minimize the effects of dry air. By maintaining the right humidity levels, these humidifiers help reduce the likelihood of respiratory issues, dry skin, and static electricity, along with protecting wooden furniture and flooring from damage.

Overall, the selection of Aprilaire humidifiers offers something for every homeowner, from automated models that take the guesswork out of humidity control to manual options that provide a personal touch. Each model boasts its unique features while ensuring a healthier and more comfortable living environment year-round.
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