Johnson Controls A19AAB-26C

The Johnson Controls A19AAB-26C is a 120/208/240V SPST remote bulb temperature control with a 6' cap, delivering precise temperature regulation for commercial equipment. Designed for reliability in HVAC, refrigeration, and industrial appliances, this device covers a wide range (100–240°F) with a fixed differential to minimize cycling and extend component life. This arrangement reduces temperature overshoot and helps protect heating and cooling equipment in busy environments. The remote bulb sensor isolates sensing from the controller, ensuring stable readings in variable environments.

Its simple SPST wiring and compact form factor make it easy to drop into existing control panels and replace aging thermostats.

• 120/208/240V universal input
• SPST switching for simple on/off control
• Remote bulb temperature sensor with 6-foot cap
• Temperature range 100–240°F
• Fixed differential minimizes cycling
• Durable, compact enclosure for industrial use

Whether upgrading an existing system or integrating into a new installation, the A19AAB-26C delivers dependable performance, straightforward wiring, and long-term value in commercial temperature control applications, with compatibility across standard control circuits. This robust unit supports durable operations in busy environments, helping reduce maintenance downtime. It also simplifies service with clear wiring and widely available replacement parts.