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#4655 Aprilaire Manual Humidistat
Aprilaire Humidifier Replacement Filter #4655

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SKU: US4655

Product Code: US4655

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Aprilair Humidifier Replacement Filter #4655

Can be wall mounted or mounted on return plenum (plenum cutout templet included).

For duct mount, locate at least 6" upstream of humidifier, humidifier bypass ductwork or fresh air intake ductwork.

The Aprilaire 4655 Humidistat is designed for low voltage service to control humidification equipment.

An increase in relative humidity expands the nylon ribbon which opens the control switch to stop operation of the humidifier.

A decrease in relative humidity reverses the process and closes the control switch

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