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The Aprilaire 4740 is the correct replacement for the following humidifiers:
The Aprilaire 4740 Humidifier Fan Relay is a replacement relay that powers up the circulator fan in the latest Aprilaire 700 model, 700A and 700M humidifiers since 2008. Newer versions of the 700 model series uses an external transformer to power the control circuit, along with the Aprilaire Fan Relay. Older versions used part number 4238 that contained a small circuit board with a low voltage transformer. 120 volts could cause serious injury from an electrical shock, so be sure to unplug the power to your humidifier before servicing.
A valve is a device that regulates, directs or controls the flow of a fluid (gases, liquids, fluidized solids, or slurries) by opening, closing, or partially obstructing various passageways
The tools you will need for installing your fan relay are a Phillips screwdriver and a pair of needle-nose pliers. Installation instructions:
Features:
Specifications:
Weight |
0.300000 |
Package Height |
2.000000 |
Package Length |
2.000000 |
Package Weight |
1.000000 |
Length |
1.500000 |
Height |
1.125000 |
Package Width |
1.000000 |
UOM |
EA |
Width |
0.875000 |
For Use With |
Model 700A and 700M |
Brand |
Aprilaire |
Dimensional Weight |
1.000000 |
Cubic Measurement |
0.000900 |
Product Weight |
0.3 |
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Shipping & Returns
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PartzStop
650 Forest Edge Drive
Vernon Hills, IL 60061
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RETURNING MERCHANDISE
To return an item, use the following steps:
1. Contact us by email to request a Return Authorization Number (RMA). Returns received outside of this process are subject to delay or refusal.
2. Re-package the item and affix the shipping label as instructed.
3. Include a copy of your order confirmation or packing slip with the package with the RMA# clearly written on it.
4. Make sure you receive a tracking number for the package so there is a way to track the package back to us. Also, if the order was expensive, you may want to consider insuring the package against loss or damage. PartzStop is not responsible for return items damaged in transit.
30 days to return a product, the product must be uninstalled and in factory packaging, warranty claims must be taken up with the manufacturer of the product, a restocking fee will be charged to cover shipping costs if the item shows wear from use or is not returned in the factory packaging, the restocking fee will be higher.
Our default return address is:
Return Department of PartzStop
650 Forest Edge Drive
Vernon Hills, IL 60061
Please, contact us if you have any questions:
Email: customersupport@partzstop.com
Customer Support Direct Line: 888-843-3870
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