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24V Drainless Bypass Humidifier with Manual Control and Humidity Readout

24V Drainless Bypass Humidifier with Manual Control and Humidity Readout

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Model: Aprilaire 400M

Actual product may vary from photos.

Model: Aprilaire 400M

$26999
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If ordered by 1PM CST M-F, ships same day. All items on your order must be in stock for same-day shipping.
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The Model 400M bypass humidifier is a high-capacity, water-conserving humidifier (0.70 gallons evaporated per hour) incorporating a water recirculation system for use where drain facilities are not accessible or available. It uses 100% of the water that goes into the unit. For those rare occurances where an automatic control is not practical, Aprilaireoffers a manual control to meet your needs. Humidifies up to 4,000 square feet if your home is tight in construction. The Model 400M is also a good choice for homes with heat pumps. Due to lower plenum temperatures the unit should be connected to your hot water supply line. This humidifier can be installed on the supply or return air ductwork. It is also left or right side reversible. Includes manual control humidistat, water pad, 110v to 24v transformer and manufacturer's special instructional DVD.

Other items needed for the installation that are not included: 1/4" copper tubing for water line, 6" round ducting and elbow for bypass air, 2-conductor 18 to 22 gauge wire. These items are available in our easy installation kit.

Specs
System Information
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Humidifier Type
Bypass
Features
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Remote Sensing Bulb
Not Available For This Model
Performance
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Maximum Coverage Area
4000 Square Feet
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Water Capacity (GPD)
17.0 Gallons/Day
Water Feed Rate
3 Gallons/Hour
Evap. Capacity
.70 Gallons/Hour
Electrical Information
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Humidifier Electrical Requirements
24 Volts
Product Dimensions
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Width
15 19/50 Inches
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Height
15 3/4 Inches
Important Measurements
Bypass Duct Diameter
6 inches
Plenum Opening Size
10W x 12.75H inches
Warranty
Limited Warranty
5 Years
Accessories
Bypass & Power-Fan Humidifier Installation Kits
Alpine Home Air Products KIT075
Alpine Home Air Products KIT075
Installation Kit for Bypass-Type Humidifiers
$59.99
Bypass & Power-Fan Humidifier Replacement Pads / Filters
Aprilaire 45 (10-Pack)
Aprilaire 45 (10-Pack)
(10-Pack) Replacement Humidifier Pads / Filters fits Aprilaire Models 400 & 400A
$294.99
Aprilaire 45 (2-pack)
Aprilaire 45 (2-pack)
(2-pack) Replacement Humidifier Pads / Filters fits Aprilaire Models 400 & 400A
$67.99
Aprilaire 45 (6-Pack)
Aprilaire 45 (6-Pack)
(6-Pack) Replacement Humidifier Pads / Filters fits Aprilaire Models 400 & 400A
$189.99
Tools
DiversiTech 640-UL25
DiversiTech 640-UL25
DiversiTech 640-UL25 Foil Tape
$34.99
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