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Johnson Controls A419ABC-1C

Line Vage, NEMA 1 Enclosure Electronic Temperature Control with Display
SKU : A419ABC-1C
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About this Item

Single Stage Temperature Control, with Display, Heating/Cooling, 120 VAC, Range -30 °F to 212 °F, NEMA 1
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Product Highlights

A419 Series: Electronic Temperature Control

The A419 series controls are single-stage, electronic temperature controls with a Single Pole, Double Throw output relay. They feature a lockable front-panel touchpad for setup and adjustment, and a Liquid Crystal Display for viewing the temperature and status of other functions. A Light-Emitting Diode indicates the controlsí output relay (On/Off) status. The A419 controls are available in 24 VAC or 120/240 VAC models. The A419 controls have heating and cooling modes, adjustable setpoint and differential, an adjustable anti-short cycle delay, and a temperature offset (setback) function. The setpoint range is -30 to 212F° (-34 to 100?C). The controls feature remote sensing capability and interchangeable sensors. The A419 controls are available in either NEMA 1, high-impact plastic enclosure suitable for surface or DIN rail mounting or NEMA 4X Watertight surface-mount enclosures.

  • Easy-to-read LCD displays the sensed temperature and control-function status clearly and custom icons on the display indicate the control and system status at a glance.
  • The 30? (F? or C?) temperature differential adjustment range allows precise (1F? or C?) temperature differential settings that are much tighter than electromechanical controls.
  • The Adjustable Anti-Short Cycle Delay (0 to 12 Minutes in 1-Minute Increments) ensures that the output relay remains off for a user-set time delay, and helps avoid hard starts, nuisance overload outages, and unnecessary equipment wear.
  • The Temperature Offset Function shifts the cut-in and cut-in setpoints by an adjustable offset when a user-installed, external switch closes the A419 controlís binary input circuit.
  • The high-impact thermoplastic type NEMA 1 allows surface or snap-fit DIN rail mount; the NorylÆ high-impact thermoplastic type NEMA 4X enclosures allow watertight surface mount.
  • Lockable front-panel touchpad allows easy set up and adjustment of the A419 control setpoint, differential, and other functions; a concealed jumper locks the touchpad, and deters unauthorized adjustment of the control settings.
  • Low and line-voltage models provides options for almost any refrigeration or HVAC control-voltage application.

The A419 can be used to control a wide variety of single-stage refrigeration or HVAC equipment. Typical applications include:
  • Freezer control in convenience stores
  • Reach-in coolers
  • Supermarket display cases for produce or meats
  • Restaurant or convenience store walk-in coolers
  • Boiler control
  • Compressor lockout (disables the copressor when temperature exceeds limits)
  • Condenser fan cycling
  • Pump control for cooling towers
  • Space and return air temperature

  • A99B Series Temperature Sensor

Manuals & Docs

Johnson Controls A419ABC-1C - Line Vage, NEMA 1 Enclosure Electronic Temperature Control with Display
Weight 0.9 Pound (lb.)
Height 3.6 Inches (In)
Width 4.1 Inches (In)
UPC 078502861811
Length 5.6 Inches (In)
Brand Johnson Controls
Voltage 120-240
Phase Single
Cycle/Hertz 60
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