A19AGC-77C Johnson Controls Temperature Control

Overview

The Johnson Controls A19AGC-77C is a single-stage mechanical line voltage temperature control designed for heating or cooling applications. Housed in a durable grey galvanized steel enclosure, this surface-mounted controller uses a liquid-filled sensing element to deliver reliable and accurate temperature regulation without requiring external power.

Features

• Versatile SPDT switching action allows for use in both heating and cooling applications
• Liquid-filled hydraulic capillary bulb sensing element ensures responsive temperature tracking
• Equipped with an adjustable differential for tailored system performance
• Operates entirely on mechanical principles, requiring no electrical power to run the control mechanism
• Features a convenient front control set point dial

Specifications

• Temperature Range: -30°F to 100°F
• Temperature Differential: 3°F (fixed)
• Electrical Rating: 120/240 VAC; 16A at 120V, 8A at 240V
• Maximum Operating Temperature: 140°F
• Maximum Control Temperature: 100°F
• Switch Type: SPDT (Snap-acting contacts)
• Sensing Bulb Dimensions: 3/8 inch diameter x 3 inches length
• Enclosure Material: Galvanized Steel / Steel (Grey finish)
• Mounting: Surface Mount

Applications

• Temperature control in commercial and industrial HVAC systems
• General-purpose operating temperature control in refrigeration, heating, and air conditioning fields
• Suitable for air-coil and bimetal sensor applications requiring remote temperature monitoring
• Ideal for space temperature regulation in both heating-dominant and cooling-dominant environmental setups