The Johnson Controls A19ABC-24 is remote bulb temperature control which is freely used for temperature management in necessary heating or cooling devices. It employs a sensor bulb filled with liquid and an 8-feet capillary tube to the main control unit. When the temperature around fluctuates, the liquid in the bulb expands or contracts and thus flips a switch which turns your HVAC equipment on or off. This single-stage control is rangeable from -30°F to 100°F and is therefore useful in many applications. This remote bulb design has the following benefits. Firstly, it can control the temperature at the exact point of the desired temperature with no reference to the position of the HVAC system.
Johnson Controls A19ABC-24 -30/100F 8'Cap Spdt,3/12 A.Dif
The Johnson Controls A19ABC-24 is a versatile and dependable temperature control device that regulates temperatures between -30 and 100 degrees Fahrenheit. This thermostat, with its durable construction and precise control capabilities, is ideal for a variety of heating and cooling applications in residential, commercial, and industrial settings. The A19ABC-24, with its SPDT (Single-Pole Double-Throw) switch configuration and 8-foot capillary tube, provides flexibility and ease of installation. Its SPDT switch allows for the switching of two different circuits, increasing its versatility in controlling heating and cooling systems. Furthermore, the 8-foot capillary tube provides sufficient length for remote temperature sensing, allowing accurate temperature measurements even in difficult-to-reach areas. The A19ABC-24 thermostat also has a 3/12 A.Dif (Adjustable Differential) setting, which allows users to adjust the temperature differential between switching operations, improving temperature control precision.
Key Features for A19ABC Johnson Controls 24-30/100F 8'Cap Spdt, 3/12 A.Dif
Temperature Range: Operates within a specific temperature range, typically from 24°F to 30°F for low-temperature activation and up to 100°F for high-temperature activation (depending on the specific model).
Capillary Length: 8-foot long capillary tube. The capillary sense changes in temperature and transmits this information to the main body of the control.
Switch Type: SPDT (Single Pole Double Throw). This switch design allows the control to turn on or off one of two separate circuits depending on the temperature.
Amperage Differential: 3/12 Amperes. This indicates the current carrying capacity of the switch contacts. The switch can handle a low current (3 Amps) in its off state and a higher current (12 Amps) when activated.
Signs of a Faulty Johnson Controls A19ABC-24 -30/100F 8'Cap Spdt,3/12 A.Dif:
No Activation at Low Temperature: If the equipment fails to turn on when the temperature falls below the set low-temperature limit (typically around 24°F to 30°F), the switch might be stuck in the "off" position.
No Deactivation at High Temperature: Conversely, if the equipment doesn't turn off when the temperature reaches or exceeds the set high-temperature limit (usually around 100°F), the switch might be stuck in the "on" position.
Visible Damage: Cracks, leaks, warping, or corrosion on the capillary tube or housing could indicate internal damage. A damaged capillary tube might prevent accurate temperature sensing, affecting the switch's ability to function correctly.
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