Johnson Controls A28GJ-33 Temperature Control

Temperature Control, Two Stage, 120/208/240/277 Vac, Two SPDT Switches, 60/90 Degree Setpoint Range, 3/8" x 3 1/2" Sensing Bulb, 5' Capillary Length, No Enclosure, Knob Range Adjuster

Johnson Controls A28GJ-33 Temperature Control – Two-Stage Remote Bulb Thermostat with SPDT Switches

Ensure precise and reliable temperature regulation with the Johnson Controls A28GJ-33 Temperature Control. Designed for commercial and industrial HVAC systems, this two-stage mechanical temperature controller features a remote bulb sensor and dual SPDT (Single-Pole, Double-Throw) switches for effective multi-stage control.

With a wide setpoint range of 60°F to 90°F, and a durable 3/8" x 3.5" sensing bulb connected by a 5-foot capillary tube, the A28GJ-33 offers flexibility in both sensing location and installation. The front control knob allows for easy field adjustments, while the built-in adjustable differential ensures precise operation and energy efficiency.

🔧 Key Features:

• ✅ Two-Stage Control: Supports dual-stage heating or cooling applications

• 🔁 Dual SPDT Outputs: Provides independent control of two loads

• 🌡️ Setpoint Range: Adjustable from 60°F to 90°F for versatile use

• 📏 Sensing Bulb: 3/8" x 3.5" bulb with 5 ft. capillary for remote placement

• ⚙️ Knob Range Adjuster: Easy access for precise temperature tuning

• ⚡ Voltage Compatibility: Operates on 120/208/240/277 VAC

• 🧰 No Enclosure: Ideal for panel-mounted or protected installations

• 🔌 No External Power Required: Simple mechanical operation without extra wiring

• 🇺🇸 Trusted Brand: From Johnson Controls, a leader in building control solutions

📦 Specifications:

• Model: A28GJ-33

• Control Type: Mechanical, Remote Bulb

• Stages: Two-Stage

• Switch Type: 2 x SPDT

• Setpoint Range: 60°F to 90°F

• Capillary Length: 5 ft.

• Bulb Dimensions: 3/8" x 3.5"

• Voltage: 120/208/240/277 VAC

• Enclosure: None (open frame for integration into existing systems)

• Applications: HVAC, refrigeration, environmental control panels, industrial automation

This Johnson Controls A28GJ-33 Temperature Controller is a dependable and flexible choice for maintaining consistent environmental conditions in a wide variety of systems. Its robust mechanical design ensures long-term reliability without the need for complex wiring or external power sources.