Johnson Controls A19ABC-24C Single Stage Temperature Control with 8′ Capillary (SPDT) Temperature Controller

The Johnson Controls A19ABC-24C Single Stage Temperature Control with 8′ Capillary (SPDT) Temperature Controller is a Johnson Controls temperature controller for HVAC repair and replacement work. Use it when the part number A19ABC-24C and the listed specifications match the equipment being serviced.

Description The A19 Series are single-stage temperature controls that incorporate environmentally friendly liquid-filled sensing elements. Features Wide temperature ranges available Constant differential throughout the entire range Compact enclosure Fixed or adjustable differential available Variety of sensing element styles Unaffected by cross-ambient conditions

Key Specs

• Differential: Adjustable, 3F to 12F
• Application: Remote Bulb Temperature, Cooling
• Capillary Length: 8′
• Product Type: Temperature Controller

Replacement Notes

Captured replacement references include A19ABC-24. Confirm supersession details against the manufacturer parts list.

Expert Verdict

Reviewed by the SuperArbor Pro Desk: choose this part when the existing component label and unit documentation match A19ABC-24C and the spec set above. It is best suited for targeted HVAC service repairs where exact fitment matters more than broad universal compatibility.

FAQs

What is the Johnson Controls A19ABC-24C used for?

It is a temperature controller for compatible Johnson Controls HVAC equipment. Match the part number A19ABC-24C and the equipment service literature before ordering or installing.

Which specs should I verify before purchase?

Verify the spec set shown for this part: Differential: Adjustable, 3F to 12F; Application: Remote Bulb Temperature, Cooling; Capillary Length: 8′; Product Type: Temperature Controller. The replacement should match the existing component and the unit documentation.

How do I confirm this is the right replacement?

Compare the part number A19ABC-24C, the temperature controller description, and any unit model references with the original component and the service manual.

Are replacement or superseded references available?

Captured cross-reference data includes A19ABC-24. Verify any supersession directly against the manufacturer parts list before installation.

Who should install this HVAC component?

A qualified HVAC technician should install and test the temperature controller. Disconnect power first, follow lockout procedures, and confirm safe operation after replacement.

Safety and Installation Notes

Disconnect power before service. HVAC electrical and combustion-related components should be installed and tested by a qualified technician. After installation, confirm wiring, mounting, airflow or fluid routing as applicable, and normal system operation.