Aprilaire 4238 Replacement Circuit Board for 700/700A/700M, 760/760A, 768 Humidifiers, 120 VAC Primary, 24 VAC Secondary

• This circuit board is located inside the humidifier and controls the small fan motor located in the fan powered humidifier
• Includes wiring harness
• The circuit board also includes a relay and transformer that supply 115 volt to a fan motor and 24 volt to solenoid when needed

Sid Harvey Item #:4238AA: Replaces Part #:'s : 2329,
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Aprilaire 4238AA

Aprilaire 4028 Drain Trap Assembly 800801 & 865,

Aprilaire 4028

Aprilaire 4237 Humidifier Fan Motor for used with 760, 760A, 768 and 700 humidifiers modelsSid Harvey Item #:4237AA: Replaces Part #:'s : 2328,
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Aprilaire 4237AA

Aprilaire 4246 Water Distribution Tray for 700, 760, 768 Humidifiers

Aprilaire 4246

Aprilaire 4403 Black Plastic Scale Control Insert with Float Chamber for 400, 400M model Humidifiers

• Easy to install and remove
• Cleanable, see maintenance instructions
• Drain hole down orientation

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Aprilaire 4403AA

Aprilaire 45AA Water Panel 400 400A & 400M Humidifiers 13" L x 1-3/4" W x 10" H,

Aprilaire 45AA

Aprilaire 4602AA Ionizer Wire Model 5000 Air Cleaners After May 2005 (3 Pack),
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Aprilaire 4602AA

Aprilaire 4407 Water Distribution Tray for 400, 400M Humidifier

• Water distribution tray distributes water evenly to all portions of the water panel
• It attaches to the U-shaped scale control insert part number 4403

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Aprilaire 4407AA

Aprilaire 4330 Black Plastic Scale Control Insert for 500, 500M, 600, 600A and 600M Humidifier

Aprilaire 4330AA

Aprilaire 4410 Water Level Sensor Assembly for Aprilaire 400, 400A and 400M Humidifiers, 24 VAC , 5-3/4" L Water level sensor assembly to fit certain Aprilaire models. Fits at the bottom of the scale control insert. It has 2-magnetic reed switches wired in series in it which look for the location of the 2-floats that are sold separately. If both floats are sitting at the bottom of the sump (there is no water in there) the 2-magnetic reed switches will close. This turns the water solenoid valve on and sends water to the top of the pad. Excess water then runs down into the sump causing the 2-floats to float up and break the circuit to the solenoid valve. If either float rises up the level sensor switch will open and close the solenoid valve.

Aprilaire 4410

Aprilaire 4332 Damper Assembly, 5-3/4"

Aprilaire 4332AA

Aprilaire 4331 Water Distribution Tray for 500, 500A, 500M, 600, 600A, 600M Humidifiers

Aprilaire 4331AA