A19ANC-1C Johnson Controls Temperature Control

Overview

The Johnson Controls A19ANC-1C is a single-stage, remote bulb electromechanical temperature control designed for a variety of commercial heating, ventilating, and refrigeration applications. It features a rugged, rainproof NEMA Type 3R gasketed enclosure constructed from cold-drawn steel with a gray enamel finish, making it suitable for outdoor environments or areas requiring weather resistance. The unit incorporates a liquid-filled copper sensing element that is unaffected by barometric pressure or cross-ambient conditions, ensuring reliable temperature regulation.

Features

• Heavy-duty NEMA Type 3R rainproof enclosure with a gasketed cover for outdoor use.
• Liquid-filled sensing element provides consistent performance regardless of barometric pressure variations.
• Dependable, snap-acting Single Pole Double Throw (SPDT) switch capable of handling inductive or resistance loads.
• Exposed screwdriver slot for easy and accurate temperature setpoint adjustments.
• Built-in high-temperature dial stop to restrict maximum settings.
• Simple strain-free mounting featuring three rubber-cushioned mounting feet.

Specifications

• Temperature Range: 0 to 150°F (-18 to 66°C)
• Differential: 5°F (2.8°C) Fixed
• Switch Type: SPDT (Single Pole Double Throw)
• Capillary Length: 10 feet (3 meters) with 0.062 in. O.D.
• Bulb Dimensions: 0.290 in. diameter x 2.573 in. length (.290 x 2.573)
• Enclosure Material: 0.062 in. cold-drawn steel with outdoor gray enamel finish
• Maximum Bulb Temperature: 190°F (88°C)
• Maximum Ambient Temperature: 140°F (60°C)
• Electrical Ratings: Supports 120 V and 240 V AC applications

Applications

• Outdoor environmental control systems where rainproof protection is necessary.
• Control of cooling tower sump heaters to prevent freezing.
• Commercial heating, general-purpose ventilation, and air side monitoring.
• Industrial processing plants and refrigeration equipment requiring remote bulb sensing.