Question submitted to Aprilaire:
I installed a 600A 2 weeks ago in my house. The unit runs for the entire heat call from my thermostat, but my house is having trouble maintaining even 30% humidity. It did raise the RH from around 15% to 30%, but I believe it is trying to go to around 40%. I think I need to increase runtime to get more humidity. I plumbed it to hot water. The way it is currently wired, the R and C are continuously powered and W/G and Cf are tied to the thermostat connection when the thermostat calls for heat. If I were to wire R, C, W/G, and Cf all to constant 24v and then the H outputs to the C and blower terminal on my thermostat connection on my furnace would this cause the humidistat to turn on the blower when more humidity is required? Would this cause a problem with my furnace?
Aprilaires' response:
The way that you describe the current wiring for your humidistat is correct. Please do not change it.
What you are describing below not only will disconnect communication to the humidifier itself, but will damage both the furnace and humidistat controller.
The humidifier will only create the amount of humidity selected on the controller. If you have it set for 30%, then that is the goal it will aim to satisfy. It will not continue to humidify past the selected level.
If you would like to achieve more than 30% humidity, simply select a higher setting. If 30% seems right for your home, you may leave it there.
I installed a 600A 2 weeks ago in my house. The unit runs for the entire heat call from my thermostat, but my house is having trouble maintaining even 30% humidity. It did raise the RH from around 15% to 30%, but I believe it is trying to go to around 40%. I think I need to increase runtime to get more humidity. I plumbed it to hot water. The way it is currently wired, the R and C are continuously powered and W/G and Cf are tied to the thermostat connection when the thermostat calls for heat. If I were to wire R, C, W/G, and Cf all to constant 24v and then the H outputs to the C and blower terminal on my thermostat connection on my furnace would this cause the humidistat to turn on the blower when more humidity is required? Would this cause a problem with my furnace?
Aprilaires' response:
The way that you describe the current wiring for your humidistat is correct. Please do not change it.
What you are describing below not only will disconnect communication to the humidifier itself, but will damage both the furnace and humidistat controller.
The humidifier will only create the amount of humidity selected on the controller. If you have it set for 30%, then that is the goal it will aim to satisfy. It will not continue to humidify past the selected level.
If you would like to achieve more than 30% humidity, simply select a higher setting. If 30% seems right for your home, you may leave it there.
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