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  1. HVAC
    I currently have an Aprilaire 700 with the digital controller. My humidity level is very low even if I have the dial on 7 (max) in the Chicago winter months. Water is flowing through. I am trying to see if running the fan on the HVAC for 20-30 mins on the hour would help circulate the air. I...
  2. HVAC
    Is ASHRI living in a different universe when they come up with these guidelines because the air tightness definitions doesn't reflect the reality. The below guideline explains calculating the load size and installing humidifier. It defines the air tightness as following, 4.4.1 Infiltration...
  3. HVAC
    I live in climate zone 5a and planning to install whole house humidifier for my 3700 sq ft house. The electricity costs of running a steam humidifier seems to be a lot so wondering why there are no residential gas fired humidifiers? I see commercial ones like this GS Series Condensing Steam...
  4. HVAC
    Hoping an expert here can help me out with an issue. I have a Goodman GMV9/GCV9 furnace and a General Aire 1042-L humidifier. When I went to replace the filter for the humidifier, I noticed it was dry and had no water going to the humidifier. My first initial thought was that the water line may...
  5. HVAC
    Hello, When I had my HVAC replaced, I also purchased an Aprilaire 700 humidifier that the HVAC company said they would install for me. When they did this it has never actually worked properly, first because they wired it wrong (and placed the sensor/control on the supply rather than the...
  6. HVAC
    Hello all, I had an maintenance call on my furnace recently and the tech mentioned the humidifier was installed incorrectly. I have 2 return ducts returning into the the furnace and one duct supplying air to the house. The humidifier (currently) is mounted to one of the returns and the 4 inch...
  7. General DIY Discussions
    Is it possible to use a dehumidifier instead of a bathroom fan for keeping the bathroom dry? Is it possible at all to dehumidify the room rather than extracting the moist air from the room?
  8. HVAC
    Can the ClimateMaster Tranquility 30 Digital (TE) Series IOM (Model: TEV026BGD02CRTS) properly communicate with a Honeywell Steam Humidifier (HM750A1000) to only allow the humidifier to run when the fan is cycled and the heat is on? I currently have the wires running from the Air Proving on the...
  9. HVAC
    Hello, I hooked up a new thermostat which required the usage of a Common wire. Being the idiot that I am, I removed the whole house humidifier wiring (Honeywell HE120) from my furnace (Lennox Airflow 92AF1UHxyz) and didn't take a photo about two years ago. <face palm> I posted on here then and...
  10. HVAC
    I need to replace the solenoid valve of my old Kenmore Central humidifier. After searching for a long time, i found the exact model match in ebay. It is 6w, 24v, 60hz, 300 MOPD with a 1/16 orifice. Yay!! But of course there is a problem as shown in the picture below. The one on the left is...
  11. HVAC
    My Aprilair 600m humidifier does not have its required 24V power. I have wired it as described on the Lennox SL280UHV furnace schematics (Humidifier to "C", other wire to HUM1 contact, HUM2 contact to "R"). I can not control humidity from my iConnect thermostat, but it does sense it. The best...
  12. HVAC
    It's winter and my house is getting quite dry because of the hot air being blown in through my central air system. I did a little research on whole home humidifiers and am interested in potentially doing something like that in my home. However, I was taking a closer look at my furnace and hot...
  13. HVAC
    where should I install the bypass duct and humidistat of a whole house humidifier if the humidifier is installed on the return line? I have the Honeywell Model # HE120A1010 Drum whole house humidifier. And I have 3 zones in the house.
  14. HVAC
    Just bought a house and to my delight there was already a Honeywell whole house humidifier installed (however doesn't work). The previous owners (lived here for 30 years), did not use it. I bought a brand new one which looks very similar...
  15. Building & Construction
    :confused1: I own a house built back in 1927. In the winter times, it is not as comfortable as we would like it to be. We have done everything possible to raise the comfort level. Although it has helped to increase the warmth in the house, it still is cool. I mean it is not warm evenly...
  16. HVAC
    I have installed an Aprilaire 500A humidifier. Everything works but I noticed the bypass duct gets hot even on the side where it connects into the return duct. Which I think is caused by back flow. Is this normal? Did I install it incorrectly? Also due to limitation I installed my controller...
  17. HVAC
    I have a new home and recieved a Honeywell IAQ (YTH9421C1002) from a family member who works at Honeywell. The furnace installer did not know how to install the IAQ with the furnace so put his own thermostat on. The Gibson(Nordyne) furnace is a SC92 and has the following connections: R C Y G W...
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