Humidifier Operator Types

Description

Armstrong
Model C-1801 pneumatic operators are frequently used for humidifiers
under modulating control. They have adjustable start points and various
air-pressure ranges.

Standard Honeywell Model MP953D pneumatic operators
are commonly used for humidifiers under modulating control. For
operating spring ranges and start points, see the PDF download on this
page. Operational start-point adjustment is available in the form of a
pilot positioner where required.

Belimo models NVF24 (24V 60 Hz standard) and AF24SR
(24V 60 Hz), and the Honeywell M9182A (24V 60Hz) are standard electric
operators for humidifiers under modulating control. Transformers for
other voltages are available for all electric operators.

The ASCO electric solenoid operator is standard for
humidifiers under on/off control. Caution: On/off operation of
humidifiers in air-handling systems is advisable only for very limited,
specialized applications. Consult your Armstrong Representative.





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Humidifier Operator Types

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