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Johnson Controls A419 Temperature Control . Condition is Used. Shipped with USPS Priority Mail.
The A419 series controls are single-stage, electronic temperature controls with a Single-Pole, Double-Throw (SPDT) output relay. They feature a lockable front-panel touchpad for setup and adjustment, and an LCD for viewing the temperature and status of other functions. An LED indicates the controls’ output relay On/Off status. The A419 controls are available in 24 VAC or 120/240 VAC powered models.
The A419 controls have heating and cooling modes, adjustable setpoint and differential, an adjustable anti-short cycle delay, and a temperature offset function. The setpoint range is -30 to 212°F
(-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, corrosion-resistant surface-mount enclosures.
The A419 Electronic Temperature Control can be used to control a wide variety of single-stage refrigeration or HVAC equipment. Typical applications include:
• retail store display freezers and reach-in coolers
• supermarket display cases for produce/meats
• retail store walk-in coolers and freezers
• boiler operating control (used as a thermostat)
• condenser fan cycling or staging
• cooling tower pump and fan control
-space and return air temperature control
-Kegerator or fermentation chamber temperature control