PENN Controls Products Catalog

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A99B Series Temperature Sensor Description The A99B Series Temperature Sensors are passive PTC (positive temperature coefficient) sensors. The A99B sensors are splashproof and are designed to measure temperature in a variety of refrigeration applications. Several accessories allow easy tailoring of the temperature sensor to various mounting configurations. Applications include temperature sensing for freezers and coolers, as well as in defrost termination sensing, space and return air temperature sensing, and condenser fan cycling. Refer to the A99B Series Temperature Sensors Product Bulletin (LIT-125186) for important product application information. Features • variety of lead lengths available to encompass most application requirements and simplify wiring sensors • an assortment of mounting hardware provides configurations for many applications • exceptional accuracy of sensing element provides excellent performance in a wide variety of control applications • stainless steel sensing bulb allows use in more applications than other types of bulbs without corrosion • lead length may be extended up to 800 ft (244 m) Applications The A99B temperature sensor line offers an economical solution for a wide variety of temperature sensing needs in refrigeration and HVAC applications. Typical temperature sensing applications and environments include: • freezers • display cases • walk-in coolers • reach-in coolers • defrost termination temperature sensing • condenser fan cycling • space and return air temperature sensing • outdoor air sensing • process cooling and heating 106

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