Transcription of A421 Series Electronic Temperature Controls
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A421 Series Electronic Temperature Controls
The performance specifications are nominal and conform to acceptable industry standards. For applications at conditions beyond these specifications, consult the local Johnson Controls Controls , Inc. shall not be liable for damages resulting from misapplication or misuse of its products. 2015 Johnson Controls , 44 Code No. LIT-1900933A421 Series Electronic Temperature ControlA421 Series Electronic Temperature ControlsSingle-Stage Electronic Temperature ControlsDescriptionThe A421 Series Electronic Temperature Controls are single-stage Controls with a single-pole, double-throw (SPDT) output relay. A421 Controls feature a bright backlit LCD with adjustable brightness and a three-button touchpad interface that can be set up to restrict user adjustments.
Rated for 24 VAC Class 2, Safety Extra Low Voltage (SELV). Includes an A99BB-25C temperature sensor with 9-7/8 in. (0.25 m) cable. A421GEF-02C Low-Voltage Type 4X Electronic Temperature Control: Type 4X (NEMA), IP67 weathertight enclosure for surface-mount applications. Rated for 24 VAC Class 2 (SELV).
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