The new Aprilaire # 58 automatic humidifier control works in conjunction with your furnace to control the operation of the humidifier. The control senses indoor RH and outdoor temperature and automatically adjusts the operation time of the humidifier to provide the optimum humidity level in the home. The digitial readout on the control displays the RH level inside the cold air return. Can also be used in manual mode when it is not possible to run wire to outdoor sensor. MOUNTS ON RETURN DUCTWORK
New lighted display includes indoor relative humidity readout, service indicator light, water panel change light, and "on" indicator light
NOTE: control must be continously powered for proper functionality - separate 24 volt transformer may be required.
In order for the humidifier to operate, the furnace blower must be running and the humidifier control must be calling for humidity. There are several different ways to detect blower operation - see installation instructions for details. 24 VAC is also required between W/G and Cf terminals. See support addendum for details.
TYPICAL WIRING - USING FURNACE TERMINALS TO DETERMINE BLOWER OPERATION
Much better than the mechanical one I had previously. Very precise and accurate.
Service and delivery comments:
Speedy efficient delivery
1/7/2009
5.0
Product is just as advertised
By Eric
from Chicago, Illinois
About Me Homeowner
Pros
Easy To Use
Cons
Best Uses
Comments about Aprilaire #58 Humidistat:
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1/1/2009
5.0
Right part
By none
from michigan
About Me Handyman, Homeowner
Pros
Cons
Best Uses
Dry Winter
Comments about Aprilaire #58 Humidistat:
Good price. [...]. Right part. No problems.
12/22/2008
5.0
perfect
By Gary
from Springfield IL
About Me Homeowner, Professional
Pros
Adjustable Settings
Energy Efficient
Lightweight
Quiet
Cons
Best Uses
Comments about Aprilaire #58 Humidistat:
the product is automatic that is just great!!!!
12/16/2008
(1 of 1 customers found this review helpful)
4.0
WOrks greate
By Matt
from McKinney, TX
About Me Handyman, Homeowner
Pros
Adjustable Settings
Quiet
Cons
Best Uses
Dry Winter
Comments about Aprilaire #58 Humidistat:
Works great
4/15/2008
(5 of 6 customers found this review helpful)
4.0
Good Humidistat
By Handyman Bryan
from Michigan
About Me Handyman, Homeowner
Pros
Easily Understood Instructions
Nice LED backlit display
Simple Interface
Cons
Had to do some re-wiring
Best Uses
Cold Climates
Dry Climates
Comments about Aprilaire #58 Humidistat:
I bought this to replace my failing Aprilaire #56 humidistat. After doing some homework and contacting a local heating/cooling shop, I found out that the #56 model was garbage to begin with and nobody even stocks them anymore. So I decided to upgrade to the #58. I was happy to see that eventhough this humidistat has a nice display, they didn't raise the price from what they were charging for my old broken one. Installation was not to big of a deal since I was replacing an old one. The only big difference is that this unit requires a constant 24v source whereas the old one did not. To make it work I had to go down to my local electical supplier and buy a 120v to 24v converter (about $20) and wire it in off of the incoming power to the furnace blower area. I was thinking I needed this "special converter" but it turns out that the converter is the same voltage as a door bell converter...go figure. I've been using this for about 2 months now and it seems to be working nicely.
4/11/2008
(3 of 5 customers found this review helpful)
5.0
Great product
By Happy Homeowner
from Virginia
About Me Homeowner
Pros
Attractive Design
Easily Understood Instructions
Simple Interface
Cons
Best Uses
Cold Climates
Dry Climates
Comments about Aprilaire #58 Humidistat:
I purchased the April Air 600A a couple months ago. Although pretty much a straight forward install, You will have to do some measuring,have some sheetmetal cutting tools, and be comfortable with running some electrical from the humidistat to your hvac unit. After a couple adjustments to get the humidity level where we wanted, we ran the unit with no problems for the remainder of the heating season. As for the automatic control, I would definately get it. That way you don't have to mess with having to re-adjust your settings every time the weather changes. It definately works well. After a couple days, the humidity level came up in our house and we stopped getting shocked by everything we touched.
