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Aprilaire #58 Humidistat image
 
(based on 4 ratings)
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Brand:Aprilaire
Located in:Parts, Aprilaire Parts, Aprilaire Humidifier Parts, Aprilaire 400 / 400A Humidifier Parts
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 Includes: * Control * Outdoor Sensor * Manual Mode Resistor * Manual Mode Sticker * Installation Instructions * Owners Manual For use with models: 110, 112, 220, 224, 400, 440, 445, 445A, 448, 500, 550, 558, 560, 560A, 568, 600, 700, 760, 760A and 768 Unit dimensions - 5 15/*16" W X 4 1/4"" H Requires round 3/4" hole for duct mounting. Note - remote sensor can be purchased separately
More information for the Aprilaire #58 Humidistat
Product Reviews Summary
Avg. Customer Rating:
 
4.5 stars
(based on 4 reviews)
100% of respondents would recommend this to a friend.

Customers most agreed on the following attributes:

Describe Yourself:
Homeowner(4)
 
perfect
By GaryVerified Purchaser from Springfield IL on 12/22/2008
Pros:
Adjustable Settings, Energy Efficient, Lightweight, Quiet
Describe Yourself:
Homeowner, Professional
Bottom Line:
Yes, I would recommend this to a friend

Comments about Aprilaire Aprilaire #58 Humidistat:

the product is automatic that is just great!!!!

 
WOrks greate
By MattVerified Purchaser from McKinney, TX on 12/16/2008
Pros:
Adjustable Settings, Quiet
Best Uses:
Dry Winter
Describe Yourself:
Handyman, Homeowner
Bottom Line:
Yes, I would recommend this to a friend

Comments about Aprilaire Aprilaire #58 Humidistat:

Works great

[2 of 2 customers found this review helpful]

 
Good Humidistat
By Handyman BryanVerified Purchaser from Michigan on 4/15/2008
Pros:
Easily Understood Instructions, Nice LED backlit display, Simple Interface
Cons:
Had to do some re-wiring
Best Uses:
Cold Climates, Dry Climates
Describe Yourself:
Handyman, Homeowner
Bottom Line:
Yes, I would recommend this to a friend

Comments about Aprilaire 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.

[2 of 3 customers found this review helpful]

 
Great product
By Happy HomeownerVerified Purchaser from Virginia on 4/11/2008
Pros:
Attractive Design, Easily Understood Instructions, Simple Interface
Best Uses:
Cold Climates, Dry Climates
Describe Yourself:
Homeowner
Bottom Line:
Yes, I would recommend this to a friend

Comments about Aprilaire 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.

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