Product Details
The Johnson Controls digital temperature controller A421AEC-01C operates on 120/240 VAC with a single-pole, double-throw (SPDT) output relay, designed as a single-stage, line-voltage electronic temperature control suitable for a wide variety of single-stage refrigeration or HVAC equipment within an ambient temperature range of -40 to 212°F. The model features a NEMA 4X (Type 4X) IP66 watertight, corrosion-resistant enclosure rated for surface mounting. The package includes an A99BB-25C PTC temperature sensor with a 2-inch standard probe and 9-7/8 inch PVC cable. The controller is equipped with a front panel LCD display, a basic and advanced programming menu, on/off temperature adjustment, switch-activated temperature setback, an adjustable anti-short cycle delay, an adjustable sensor offset, an optional restricted adjustment mode, and sensor failure mode. Warranty terms apply as specified by the manufacturer.
