Aprilaire 4655 Manual Digital Control Humidistat
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About this Product
Aprilaire has been providing top of the line humidifiers and humidistats for over 60 years now. The Aprilaire 4655 Manual Digital Control Humidistat is designed to be used with low voltage service to offer control of your humidification equipment, and is made to be used with the Aprilaire humidifier model 500. The indoor humidity should be set to match the outdoor temperature to prevent water from running down the sides of your windows. Typically cold air will condense against the window, but with the Aprilaire 4655 Manual Digital Control Humidistat this will not happen. When there is an increase in relative humidity the nylon ribbon in the Aprilaire 4655 Manual Digital Control Humidistat will expand which in turn opens the control switch that will stop the operation of your humidifier. When the relative humidity reverses the Aprilaire 4655 Manual Digital Control Humidistat will close the control switch. The Aprilaire 4655 Manual Digital Control Humidistat can either be wall-mounted or mounted on the return plenum. The Aprilaire 4655 Manual Digital Control Humidistat includes a plenum cutout template that measures 4 5/32" x 2 7/16". For duct mounting the Aprilaire 4655 Manual Digital Control Humidistat should be placed at least six inches upstream from the humidifier, humidifier bypass ductwork or fresh air intake ductwork.
Features:• Attractive design
• Large, easy-to-read back lit display
• Readable in any light
• To remove dirt from nylon ribbon and control interior, dust lightly with a fine soft brush
Specifications:• Model: 4655
• SPST Switch
• Wires: 2
• Voltage: 24 VAC
• Amperage: Max. Load (contacts)
• 5.2 Amps
• Range: 15% to 50%
• Template: Includes plenum cutout template (4 5/32" X 2 7/16").
• For duct mount: locate at least 6" upstream of humidifier, humidifier bypass ductwork or fresh air intake ductwork
• Dimensions: 5 1/8" W x 3 3/8" H x 1 5/16" D
My humidistat stopped working properly after 3 years
My humidistat stopped working properly after 3 years, so I did some research and discovered that I could purchase it online. Saved at least a hundred dollars by buying it here and installing it myself.
on 07-10-2014 by Bradley
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Questions & Answers
can this humidistat be used with aprilaire 600 humidifier
This unit is not for use with a Model # 600Compatible units are :110, 112, 220, 224, 350, 360, 400, 440, 445, 445A, 448, 500, 550, 558, 560, 560A, 568, 700, 760, 760A and 768.
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