7
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What happens to quarter valve when I don't turn it on/off completely?
A quarter-turn valve is a poor choice for metering (controlling the flow, as you want to.) They are best for "on/off" operation but plenty of folks use them for flow control anyway.
The ...
- 226k
5
votes
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Wiring humidifier to furnace fan
The terminal circled in red should be labeled HUM-H, which is the humidifier (hot) terminal. This terminal is energized to 120 V when the system is running in heating mode.
The terminal circled in ...
- 132k
4
votes
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How to Break Apart an Unbreakable Humidifier to Clean It
Put the humidifier in your garage or outside. Put a 50/50 vinegar/water solution into the tank and turn it on. Let it run until the solution is gone. This will help dissolve the deposits. If that ...
- 48k
4
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Should my humidifier be able to maintain 38% humidity in the winter?
Depends how badly the house leaks air, more than the square footage of the house, really.
If the house is leaky, cold dry air comes in and warm moist air goes out and your humidifier has limits on how ...
- 226k
4
votes
Should my humidifier be able to maintain 38% humidity in the winter?
Yes one would expect that humidifier to do a pretty good job. "Time for a new pad" was the first thing that came to mind but you did mention having already replaced that.
The 700 is a fan-...
- 33.5k
3
votes
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Aprilaire 56 Humidistat not getting power
Wired in this way, this should have never worked. W2 is the terminal that the thermostat uses to activate second stage heat. It is not energized by the furnace, but by the thermostat.
Also, it ...
- 132k
3
votes
How to calculate CFM/pressure needed to move water vapor through duct?
Propeller fans aren't really good at producing any static pressure. They can move air quietly but as soon as they see any restriction air flow stops. Your basically making a remote mount fan assist ...
- 6,384
3
votes
Water is pouring out of our Aprilaire humidifier
The Aprilaire humidifiers, including the 600, use an orifice piece to restrict water flow. It should be at the end of the line coming into the solenoid, but someone may have put it on the other end. ...
- 141
3
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April Aire 600 Humidistat Question
No, it is not normal. The solenoid allows water to run over the humidifier's screen. If the blower isn't running....it's a pointless waste to have water running.
I assume you aren't confusing the ...
- 6,679
3
votes
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Furnace wiring diagram: HUM 120 VAC or 24 VAC can be used
“dry contact terminals” mean a connection that gets closed/opened (usually by a relay). No power is provided by the contacts - it’s just a switch. The power comes from the device being controlled.
It’...
- 7,113
3
votes
Is there a safe way to add humidification to a central air system/heat pump?
A central heat pump only condenses on one side.
In the summer, that is inside, like a traditional air conditioner. In the summer you want dehumidifying, so that's good.
In the winter, that is outside, ...
2
votes
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Using a humidistat? (humidifier)
You asked a basic question of how to set the humidity level on the humidistat itself. The easy answer is a table that is printed right on the face of my humidistat. It's easier to use than ...
- 4,230
2
votes
Accepted
What is the name for the brush to clean this humidifier valve on my HVAC
That looks like a drain, not a supply line.
The device with the wires is an EZ Trap Condensate Overflow Cut-Off Switch
Here's a similar device that includes a trap brush.
Here's just a trap brush.
- 132k
2
votes
where should I install the bypass duct and humidistat of a whole house humidifier
The intake duct comes from the heated air supply -- so basically the closest place you can get it before any of your zones (to ensure it is getting air anytime the furnace is on, regardless of zone).
...
- 29.2k
2
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How to diagnose a broken Aprilaire humidifier (Model 600)?
I had the same issue, no water. Ran the troubleshooting test here and found that I also had a bad solenoid, it just wasn't opening to allow the incoming water to run over the metal filter. Try blowing ...
- 21
2
votes
Accepted
Just installed aprileaire 700 whole house humidifier. Furnace takes air from outside
Had to move controller (with sensor on back) farther away to where only in house air was moving through duct. In my house this was at the ceiling as the return plenum area was mixed with outside air ...
- 1,095
2
votes
Material for water feed line on furnace humidifier. Latex required?
I called Honeywell about the issue and they said both Latex and Vinyl were fine to use for the humidifier water feed tube.
- 131
2
votes
Accepted
How much cooling is my mist maker humidifier causing?
What you're asking about is the latent heat of vaporization.
It is 970 real BTUs per pound of water, or 2260 joules per gram. A joule is a watt-second. A BTU raises one pound of water one degree ...
2
votes
Is it wrong to install both a whole house humidifier and a whole house de-humidifier?
The problem is that your air conditioner is probably over sized or the fan speed is set too high. An air conditioners primary function is to remove moisture from the air. To big of an air conditioner ...
- 6,384
2
votes
Is it wrong to install both a whole house humidifier and a whole house de-humidifier?
Pgreen2--Let me give you the novice approach to your problem. I live in Butler, Pa. and here is what I do, and it works. @Joe Fala is pretty much spot on but here is what you can do as a home owner. ...
- 12.5k
2
votes
What is the name of this water source for a whole house humidifier?
These are called "saddle valves" or "vampire taps". They just poke a hole in the pipe with a little pressure around the hole to seal it. They almost always leak after some time but they are quick ...
- 28.3k
2
votes
Accepted
Is this the correct wiring for Honeywell humidifier?
I just found my answer. I've been searching for documentation for the humidifier on how to connect it to the furnace. This morning, I decided to look for documentation for the furnace to see if it ...
- 31
2
votes
Piping humidified air through a wall
To me, the biggest issue here is that, while "the condensation would be only on the inside of the pipe", you are in fact anticipating condensation, which can lead to mold, in the pipe. And ...
- 1,915
2
votes
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How to troubleshoot a leak in an Aprilaire humidifier?
I can't quite tell whether you're seeing normal operation and mistaking it as a problem or if there's actually a problem. The white crumbly stuff is scale, also called mineral deposits. It is calcium ...
- 33.5k
2
votes
Why place humidifer on cold air return
The biggest reason is probably "because that's where it fits."
It's true that warmer air can carry more grains of water than colder air can. That's a good physics-based reason for locating ...
- 33.5k
2
votes
Carrier Weathermaker 9200 Humidifier Ecobee blows 3amp fuse
The solenoid went bad and was blowing the fuse. Replaced solenoid and humidifier works now.
- 31
2
votes
How to Break Apart an Unbreakable Humidifier to Clean It
Freeman's answer provides a good explanation of how to fix the issue so I'd like to provide an explanation of how to prevent it.
Use distilled water in humidifiers if it's available to you.
From https:...
- 16.9k
2
votes
Accepted
Aprilaire 400 solenoid valve gets stuck at opening resulting in buzzing (hammering?)
Well vinegar sounds like a good idea but it is an acid.
As an acid it will attack the tin in the brass leaving the copper.
It should be ok.
I have valves that get sticky all the time: the problem is ...
- 103k
2
votes
Accepted
Swamp Cooler AND Humidifier in One System
It's true that a swamp cooler and a humidifier (together with its associated furnace/air handler) both have "blow air around" and "make the air wet" on their lists of features. But ...
- 33.5k
2
votes
Problem with water rushing through whole house humidifier
In my humidifier the pan on top of the filter is a piece of rubbery flexible plastic that needs the filter intact to be flat and level to allow the water to flow out and run down the little holes. ...
- 393
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