ProThermostats.com > Aprilaire #58 Humidistat

Aprilaire #58 Humidistat

Aprilaire #58 Humidistat

About This Product

MFG: Aprilaire
MFG#: 58
Our#: 171318

REPLACED BY MODEL # 60

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

REVIEW SNAPSHOT®

by PowerReviews
Aprilaire #58 Humidistat
 
4.8

(based on 27 reviews)

100%

of respondents would recommend this to a friend.

Pros

  • Adjustable settings (8)
  • Easy to use (8)
  • Energy efficient (8)
  • Durable (5)
  • Good size/fit (5)

Cons

    Best Uses

    • Whole house humidifiers (11)
    • Dry winter (9)
      • Reviewer Profile:
      • Homeowner (25), Avid do-it-yourselfer (8), Professional (3)

    Reviewed by 27 customers

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    Displaying reviews 11-20

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    5.0

    Nice control/easy install

    By DJP

    from Bucks County, PA

    About Me Homeowner

    Verified Buyer

    Pros

    • Energy Efficient
    • Good Fit

    Cons

      Best Uses

      • Portable Humidifiers
      • Whole House Humidifiers

      Comments about Aprilaire #58 Humidistat:

      I replaced the original nylon band control with this digital model. The fact that it was controlled by outside temp was appealing since I did not want to keep adjusting the manual control all the time as temperature drops and the heater runs more often. This seems to keep the humidty constant within a few points and does not over humidify if I forget to change the manual control as mentioned above.

       
      5.0

      Much needed upgrade

      By Bruce

      from Fairfax, VA

      About Me Homeowner

      Verified Buyer

      Pros

      • Durable
      • Energy Efficient
      • Good Fit
      • Long Lasting

      Cons

        Best Uses

        • Whole House Humidifiers

        Comments about Aprilaire #58 Humidistat:

        Much better step-up from #56. I installed this with the older model 700 (Almond color) and it works beautifully.

        (1 of 1 customers found this review helpful)

         
        5.0

        Jumper required

        By john

        from Rochester, NY

        About Me Homeowner

        Verified Buyer

        Pros

        • Easy To Use

        Cons

          Best Uses

          • Dry Winter

          Comments about Aprilaire #58 Humidistat:

          The old one didn't require constant 24 volts. Needed to modify the wireing diagram to add jumpers wires to tie the switched 24 v to the constant 24 v screw connectors. Now it works when the furnace is turned on.

           
          4.0

          Aprilaire #58 w/ Honeywell Humidifier

          By Chuck

          from Harrisville NH

          About Me Homeowner

          Verified Buyer

          Pros

          • Adjustable Settings
          • Easy To Use

          Cons

            Best Uses

              Comments about Aprilaire #58 Humidistat:

              Used in place of manual Honeywell controller so that outside temperature was sensed automatically.

               
              5.0

              Great product

              By Duckpinjoe

              from Pasadena Maryland

              About Me Homeowner

              Verified Buyer

              Pros

              • Easy To Use

              Cons

              • No cons

              Best Uses

              • Dry Winter

              Comments about Aprilaire #58 Humidistat:

              Easy to setup

               
              5.0

              Installed easily, works great.

              By Carlos

              from Naples, NY

              About Me Homeowner

              Verified Buyer

              Pros

              • Adjustable Settings
              • Easy To Use
              • Lightweight
              • Quiet

              Cons

                Best Uses

                  Comments about Aprilaire #58 Humidistat:

                  Used to control new Geothermal System. Old mechanical humidistat did not work correctly. Plumbed to hot water as per instructions for Geothermal System.

                   
                  5.0

                  great improvement over the #56 autotrac

                  By grizzly

                  from mpls mn

                  About Me Homeowner

                  Verified Buyer

                  Pros

                  • Easy To Use

                  Cons

                    Best Uses

                    • Dry Winter

                    Comments about Aprilaire #58 Humidistat:

                    was easy to install and works perfectly.

                     
                    5.0

                    easy install, was a replacement for #56

                    By Roger

                    from Jefferson, Ohio

                    About Me Homeowner, Professional

                    Verified Buyer

                    Pros

                    • Adjustable Settings
                    • Easy To Use

                    Cons

                      Best Uses

                      • Dry Winter

                      Comments about Aprilaire #58 Humidistat:

                      easy to use

                      Service and delivery comments:

                      prompt delivery, good condition

                       
                      5.0

                      did not use product, replaced unit

                      By Dick the husband

                      from Wind Lake, WI

                      About Me Homeowner

                      Verified Buyer

                      Pros

                      • Adjustable Settings

                      Cons

                        Best Uses

                        • Dry Winter

                        Comments about Aprilaire #58 Humidistat:

                        returned unit, did not use, no problem with returning part.....thank you

                        (1 of 1 customers found this review helpful)

                         
                        4.0

                        Aprilaire 58 Controller

                        By memfields

                        from Leesburg, VA

                        About Me Homeowner

                        Verified Buyer

                        Pros

                        • Adjustable Settings
                        • LED Digital Display

                        Cons

                          Best Uses

                          • Dry Winter

                          Comments about Aprilaire #58 Humidistat:

                          Upgraded from controller that came with Unit (Aprilaire 700) which had quit working after 5 years. Installation was very easy using the included directions. Extra wiring was simple and well displayed in paperwork. When I called with a question it was answered quickly and informatively. I like this controller much better than the original because it actually displays the humidity in RH form on the controller. Much easier to tell if it is working and when to change the filter or call for service. Overall I'm satisfied!

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