Available for purchase is a heavy-duty Johnson Controls Penn A19ACA-14C single-stage mechanical temperature control switch. Equipped with a 6-foot capillary tube and a liquid-filled remote sensing bulb, this highly reliable unit provides precise temperature tracking and safety limit cutout function for high-moisture or rigorous industrial and commercial environments. New Old Stock without original box
TECHNICAL SPECIFICATIONS
- Manufacturer: Johnson Controls / Penn Controls
- Model Number: A19ACA-14C (Direct replacement for legacy A19ACA-14 series)
- Temperature Setpoint Range: -30 degrees F to 100 degrees F (-34 degrees C to 38 degrees C)
- Switching Action: SPST Open Low (Opens circuit immediately on temperature drop)
- Safety Feature: Manual Reset Only (Requires physical intervention to reset after a low-temperature lockout limit trip)
- Sensing Element: 3/8-inch diameter x 4-inch length liquid-filled copper remote sensing bulb
- Capillary Length: 6 Feet (72 Inches) copper capillary tube
- Electrical Voltage Rating: 24 to 277 VAC (Heavy-duty contact ratings: 16 Amps at 120V / 8 Amps at 240V)
- Adjuster Style: Secure screwdriver slot range adjuster to prevent unauthorized tampering
- Enclosure Rating: NEMA 1 heavy-gauge steel cover
- Maximum Bulb Temperature: 140 degrees F (60 degrees C)
COMPATIBLE COMPRESSORS & REFRIGERATION UNITS
This manual-reset safety limit control is universally compatible across commercial refrigeration equipment utilizing single-phase or three-phase systems via a control circuit loop. It is widely applied with commercial HVACR compressors including:
- Copeland Hermetic & Welded Scroll Compressors (ZR, ZB, ZF, and CS Series)
- Tecumseh Commercial Refrigeration Compressors (AE, AK, AJ, and AW Series)
- Bristol Hermetic Reciprocating Compressors
- Danfoss / Maneurop Light Commercial Compressors
- Carlyle Commercial Reciprocating and Screw Compressor units
COMMON INDUSTRIAL & HVACR APPLICATIONS
- Low-Temperature Lockout Safety: Serves as a freeze protection limit switch in commercial air handling systems and chiller loops.
- Walk-In Coolers & Freezers: Used to prevent evaporator coil freeze-up or monitor spaces for critical low-temperature fault limits.
- Food Processing Facilities: Monitors storage vaults, cold food line refrigeration equipment, and blast chillers.
- Beverage Systems & Breweries: Perfect for monitoring glycol cooling jackets, conditioning tanks, and walk-in beverage taps.
- Agricultural Settings: Used for greenhouse ventilation control, livestock building safety limits, and bulk milk tank monitoring.
- Brand: Johnson Controls / Penn
- MPN: A19ACA-14C
- Controller Type: Mechanical Temperature Control
- Switch Type: SPST (Single Pole Single Throw)
- Switch Action: Open Low
- Reset Type: Manual Reset
- Setpoint Temperature Range: -30 to 100 Deg F
- Capillary Length: 6 ft (72 in)
- Sensor Type: 3/8 in x 4 in Copper Bulb
- Enclosure: NEMA 1 Steel Case