Aprilaire Model manual humidistat designed for low voltage (24v) humidifier control. Aprilaire – Manual Humidifier Control – The Aprilaire Manual Humidistat for Aprilaire Humidifiers. Replaces Model It can be installed on the wall. Buy Aprilaire Manual Humidistat for Aprilaire Humidifiers. Aprilaire technical support information, product brochures and more.

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Total Items in Cart: Free Shipping See Details. Fremont, CA [ Change ]. Roll over image to zoom in. Alpine Home Air Products.

Aprilaire 4655 #4655 Manual Humidistat

All items were included in the order and arrived in good condition. Discounted Items – Huge Savings! Rates range from 6. Don’t Miss Out on Exclusive. Water Heaters Tankless Water Heaters. Aprilaire Manual Humidistat for Aprilaire Humidifiers. Auto Delivery from Filtersfast. The Aprilaire Manual Humidifier Humidistat is a manual humidistat that has to be adjusted based on the outside temperature.

Please enable your browser’s cookies to use this site. Cool air near the windows cannot hold the humidity and water will condense on the glass. Free online quotes No home visit Learn More. Terms of Use Privacy Policy.

An increase in relative humidity expands the nylon ribbon which opens the control switch to stop operation of the humidifier. Forums Check our forums for FAQ.


CST M-F, ships same day. A decrease in relative humidity reverses the process and closes the control switch. Aprilaire Humidifier Humidistat specifications: The Aprilaire is the correct replacement for the following humidifiers: A Todd Arthurs Company, Inc.

This Aprilaire Manual Humidifier Control is designed for low voltage service to control Aprilaire humidification equipment. A template for the plenum cutout is included.

Expert Assistance Get expert assistance from our team. By signing up for our Free Newsletter, you’ll receive exclusive promotions, discounts and more directly to your inbox. When an increase in relative humidity RH expands the nylon ribbon will open the control switch to stop the humidifier’s operation.

Your terms may vary and are subject to application. In Alpine Home Air Products became the first company to sell heating, air conditioning and indoor air-quality products online.

Aprilaire 4655

Sign Up for Promotions. Filter for Life Blog. White Manual humidistat Wall mounted or duct mounted Dimensions: Either your browser does not support JavaScript, or it has been disabled.

About Us Learn more about our Family. Here’s how it works: There’s never an obligation to continue and you can cancel or modify your order at any time on the My Auto Delivery page of our website, or by calling If ordered by 1 p. Also known as part numberthis whole house humidistat is designed for low voltage 24v control of humidifiers in central heating and air conditioning systems to control humidification equipment.


The Aprilaire humidistat control can be mounted on the wall or on the return plenum. You will only be charged when your orders are placed.

All items on your order must be in aprillaire for same-day shipping. We have proudly served hundreds of thousands of customers, helping them save time and money by buying their products direct.

Aprilaire Manual Humidifier Humidistat Sale $

Aprilaire Manual Humidifier Humidistat. Aprilaire Manual Humidistat for Aprilaire Humidifiers 4 stars, based on 3 reviews Aprilaire Replacement Parts Boiler System Components. In Stock and Ready to Ship.

In order to prevent this accumulation of condensation, the indoor humidity level is sacrificed by lowering the humidistat. This will help prevent water from running down the windows. When installing this humidistat for duct mount, locate at least 6 upstream of your humidifier, humidifier bypass ductwork or fresh air intake ductwork. When a decrease in relative humidity reverses the process, the control switch closes.

The Aprilaire Control can be mounted on a wall in the living space, or on the return air duct.