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 Tip: Read and understand the manufacturer's instructions that accompany the humidifier Safety Tips: Before installing a humidifier turn off the furnace as well as the electrical power to it.


Installing a Humidifier


1) Mark the Placement of the Humidifier
In a typical installation, you tape a paper template for the humidifier on the warm air plenum above the furnace. Use a level to make sure the lines of the template are level. Also mark the position of the humidifier duct on the cold air return if needed. Then, using metal cutting snips cut through the template and sheet metal along the lines of the template. To protect yourself, wear work gloves and safety goggles. 

 

2) Install the Humidifier
Position the humidifier in the  warm air plenum, making sure it is level. It's important to level the humidifier for even water distribution;  Then fasten the humidifier in place, following the manufacturer's instructions. 

3) Cut Hole for bypass Duct (if a bypass type)
Using metal snips, cut through the cold air return to make a hole for the humidifier . some kit's comes with a mounting collar for the bypass. 


4) Connect Duct (if a bypass type)
Using flexible duct or a length of standard metal duct and an elbow fitting, connect the humidifier to the cold air return. 


5) Installing Water Supply to the Solenoid Valve
A typical humidifier has a solenoid valve to control water flow. This needs a small 1/4" flexible copper pipe or hard plastic tubing that runs from the saddle valve to the humidifier. 


6) Install a saddle valve (if permitted by code)

 on the hot water supply pipe. Clamp it to the pipe, and turn the handle to pierce the pipe. 


7) Provide for  Overflow or drain
Whole house humidifiers typically have a catch basin that recirculates water, or a 1/2" drain hose like this one. 


8) Install the Humidistat
Following the instructions that accompany the humidifier, install the humidistat on the cold air return or near the existing thermostat.  A humidistat allows you to regulate the indoor humidity. 

 

 

Space-Gard® and Aprilaire®, and the Space-Gard and Aprilaire, logos are registered trademarks of Research Products Corporation.  Carrier® and Additional logos, brands, models, and product information are registered trademarks of their respective manufacturers and/or owners.
Copyright ©1999, 2000, Morrison Mechanical
Last modified: August 29, 2000

Space-Gard® and Aprilaire®, and the Space-Gard and Aprilaire, logos are registered trademarks of Research Products Corporation.  Carrier® and Additional logos, brands, models, and product information are registered trademarks of their respective manufacturers and/or owners. 
Consumer information is NEVER distributed to outside parties of the transaction.
Copyright © 2002,2003 Morrison Mechanical
Last modified: January 21, 2003