How to Install a Whole House Humidifier

It takes some technical knowledge and experience to install a whole-house humidifier. However, the effort is well worth it: a humidifier may enhance your interior air quality and make you feel a lot more comfortable throughout the cold, dry winter months. So, from ductwork to water lines to electricity, keep reading to learn the essential elements of a successful humidifier installation.

Ductwork

Fishers, IN Humidifier Installation and Repair Service

First, let’s look at the ducting. We’ll mount the device on the return and then duct it to the supply.

  1. First and foremost, you must cut a hole in the return. This is where the humidifier will be installed.
  2. You can now place the device in the hole. A couple of suggestions: a) keep it level so that the water drips down the drain rather than out the sides; b) use foam backing around the margins of the opening to keep it watertight.
  3. It’s time to run the ductwork from the humidifier to the supply line now that the unit is installed.

Lines of water

How to Install an Aprilaire Whole-House Humidifier, and More - Dengarden

You’re ready to work on the water line once the ductwork is up and linked.

  1. To avoid any spillage, switch off the water and remove the pressure from the lines.
  2. The humidifier must then be connected to a supply line. The approach, on the other hand, is dependent on the sort of pipe you’re dealing with. The item in our video example comes with a “saddle valve,” but this will only function on copper pipes. A saddle valve will not work if your home has PEX tubing since it will cause leaks.
  3. Connect the water connection of the humidifier to the home’s hot water supply. Avoid connecting the humidifier to the cold water line because it works better with hot water.
  4. Now that you’ve linked your supply line, it’s time to connect the drain. To remove excess water, the drain will be connected to the furnace condensate pump.

Electrical

How to Maintain a Whole-House Humidifier

You’re now ready to move on to the electrical. The circuit is quite basic, and the humidifier should include a transformer.

  1. You connect the high voltage from the control board to the Electronic Air Cleaner in our example. When the fan turns on, it will activate our humidifier. After connecting the high voltage, you use your thermostat to power the solenoid valve.
  2. A word on the electrical wiring: it’s not difficult, but it can be frustrating. For assistance, consult the instruction manual. You’ll find some helpful diagrams for completing this section of the challenge.
  3. Install the humidistat now, if necessary. The home’s thermostat, in our case, already has the ability to manage humidity. If your thermostat isn’t capable of doing so, you’ll need to install the humidistat that comes with it. The wiring should be explained in detail in the instruction manual. The transformer must be connected to a 120-volt power supply, and the digital humidistat controller’s wires must be connected to the furnace. Except for the green wire, which controls the fan, all of the thermostat wires will remain the same. It’s a good idea to install an external temperature sensor if your humidifier kit includes one: it will help adjust humidity more precisely.

Steps to completion

Okay, we’ve completed the ductwork, installed the water lines, and completed the electrical work. Now it’s time to reassemble the system.

To begin, insert the water line into the hole until it reaches the stopper. That’s how you can tell if you’re on the correct track. Put it all together, cover it, and you’re ready to put it to the test. Make sure the mode is set to the appropriate season, and then test the thermostat to see if it recognizes the humidifier. If that’s the case, you’re done!

Please contact us if you require additional assistance with your heating and cooling system. Also, be sure to check out our YouTube channel for more useful videos!


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