Comment:
I have the same issue. I installed 600A last week. For some reason, the humidifier does not increase the RH above 30% even on the highest setting (7). Our home is 40 years old and only 1500 sq ft. It was installed for automatic operation with the outside air sensor. Any comment to fix this problem
Aprilaires' Response:
One of the most common reason for lack of humidity is lack of humidifier run time do to lack of runtime of the furnace. Another reason is the homes ability to hold the moisture. No matter how well a house is built it breaths. As air escapes from the house so does the humidity. The older a home gets the leaker it gets. So the trick is adding the humidity faster than it is escaping. In most homes the humidifier gets enough run time, but older leaky homes or new homes that are so well insulated that the furnace hardly runs, you will need to extend the humidifiers run time.
If the Model 600 humidifier runs every time the furnace comes on, runs whole time the furnace is on, and gets forced to turn off when the furnace goes off, it is added as much humidity as the furnace is allowing it to. If the humidifier could run longer it would. So if the humidifier is wired to run with the furnace fan, connected to hot water (140 Max), and if you run your furnace fan continually, the humidifier can add up to 16 gallons of water to the air per day.
Some people don't want to run their fan continuously, so another option would be to use the Aprilaire 4851 Blower Activation Relay. This relay will turn on the furnace fan and let the humidifier run as many hours a day as it need to without the fan running continuously.
I have the same issue. I installed 600A last week. For some reason, the humidifier does not increase the RH above 30% even on the highest setting (7). Our home is 40 years old and only 1500 sq ft. It was installed for automatic operation with the outside air sensor. Any comment to fix this problem
Aprilaires' Response:
One of the most common reason for lack of humidity is lack of humidifier run time do to lack of runtime of the furnace. Another reason is the homes ability to hold the moisture. No matter how well a house is built it breaths. As air escapes from the house so does the humidity. The older a home gets the leaker it gets. So the trick is adding the humidity faster than it is escaping. In most homes the humidifier gets enough run time, but older leaky homes or new homes that are so well insulated that the furnace hardly runs, you will need to extend the humidifiers run time.
If the Model 600 humidifier runs every time the furnace comes on, runs whole time the furnace is on, and gets forced to turn off when the furnace goes off, it is added as much humidity as the furnace is allowing it to. If the humidifier could run longer it would. So if the humidifier is wired to run with the furnace fan, connected to hot water (140 Max), and if you run your furnace fan continually, the humidifier can add up to 16 gallons of water to the air per day.
Some people don't want to run their fan continuously, so another option would be to use the Aprilaire 4851 Blower Activation Relay. This relay will turn on the furnace fan and let the humidifier run as many hours a day as it need to without the fan running continuously.
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