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INSTALLATION INSTRUCTIONS

69- 1576EF

® U.S. Registered Trademark
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69-1576EF   G.H.   9-01   •    www.honeywell.com/yourhome

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Honeywell

Honeywell Limited-Honeywell Limitée

1985 Douglas Drive North

35 Dynamic Drive

Golden Valley, MN  55422

Scarborough, Ontario
M1V 4Z9

Printed in U.S.A. on recycled 
paper containing at least 10% 
post-consumer paper fibers.

HC18A, HC22A, HC26A

Humidifier Pad

APPLICATION

The HC18A, HC22A, and HC26A Humidifier Pads replace the 
humidifier pad in the Honeywell Flow-Through Humidifiers or 
Aprilaire® Humidifiers. The humidifier spreads water over the 
humidifier pad, and when warm air blows over the water-
soaked area, vapor is generated. As the vapor circulates 
through the house, the relative humidity rises.

INSTALLATION

CAUTION

Personal Injury or Equipment Hazard.
Can cause electrical shock or equipment damage.
Disconnect power supply before installing or servicing.
Turn off water supply.

IMPORTANT

Do not remove the powder from the new humidifier 
pad. The powdery coating on the pad promotes 
water dispersement.

1.

Remove the humidifier cover. See Fig. 1.

2.

Remove the humidifier pad assembly from the humidi-
fier by grasping the assembly and pulling it toward you.

3.

Pry open the frame at the corners until the PerfectFlo™ 
water distribution tray lifts off.

4.

Gently pinch the water nozzle catches inward until the 
water nozzle can be lifted off the tray.

5.

Slide the humidifier pad out of the frame.

RECYCLE NOTICE

This humidifier pad is recyclable. After removing the 
pad from the humidifier, wash off the powder and 
recycle the pad with the aluminum recyclables.

IMPORTANT

Be careful not to punch the frame to prevent leaking.

6.

Carefully scrape any mineral deposits from the tray and 
frame. Be sure nothing is blocking the frame drain hole.

7.

Reattach the water nozzle to the PerfectFlo™ water dis-
tribution tray.

8.

Insert the new humidifier pad into the frame.

IMPORTANT

Be sure the black line on the top of the humidifier pad 
is facing up.

9.

Replace the water distribution tray. Be sure all four tabs 
are in place.

10.

Place the humidifier pad assembly in the humidifier 
housing and press until the assembly is completely 
sealed. Be careful not to pinch or kink the water feed 
tube.

Fig. 1. Humidifier components.

11.

Replace the humidifier cover.

12.

Turn on the power and water supply.

13.

To verify the humidifier operation, refer to the Owner’s 
Guide Checkout Procedure section.

M12371A

PerfectFlo“ WATER DISTRIBUTION TRAY

WATER FEED NOZZLE

HUMIDIFIER PAD

HUMIDIFIER

HOUSING

COVER

FRAME

WATER

FEED
TUBE

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