Penn Controls A19ABC-24C Remote Bulb Temperature Control

Product Description

The PENN CONTROLS A19ABC-24C is a single-stage, single-pole single-throw (SPST) remote bulb temperature control designed for precise temperature sensing in HVAC and refrigeration applications. It uses an environmentally friendly liquid-filled sensing element that delivers consistent differential performance across its full operating range. The compact enclosure houses an adjustable differential mechanism, giving technicians the flexibility to fine-tune switch actuation points to match system requirements. This control is manufactured in the United States and is intended for installation by licensed HVAC or refrigeration service technicians.

The A19ABC-24C fits residential and light commercial HVAC and refrigeration systems where remote bulb temperature sensing is required. Typical applications include unit coolers, evaporators, and air handling equipment where the sensing element must be located away from the control enclosure. The adjustable differential allows the installer to set the switching dead band to prevent short-cycling and match the demands of the controlled equipment.

Key Features

• Single-pole single-throw (SPST) switching for straightforward on/off control
• Liquid-filled remote sensing element - environmentally friendly formulation
• Adjustable differential maintains consistent dead band throughout the entire operating range
• Compact enclosure measures 3.31 inches x 2.40 inches x 10.51 inches
• Wide temperature range supports diverse HVAC and refrigeration applications
• Manufactured in the United States

Compatibility

Designed as an OEM-style replacement or direct-install remote bulb temperature control for single-stage HVAC and refrigeration systems requiring SPST switching.

Installation Notes

Installation should be performed by a licensed HVAC or refrigeration technician. De-energize the equipment and verify power is off at the disconnect before wiring or mounting this control. Secure the remote sensing bulb firmly in the intended sensing location per the equipment manufacturer's instructions to ensure accurate temperature response. Wiring must comply with applicable local codes and the NEC.