Johnson Controls A19QSC-1 Temperature Control 0-150°F 5 Differential SPDT NEMA 4X

The Johnson Controls A19QSC-1 Temperature Control is a reciprocal device necessary for controlling temperatures in HVAC systems. It has a Single-Pole Double-Throw (SPDT) contact type in the operating temperature between 0°F and 150°F with a variance of 5°F. Due to its suitability against environmental conditions, this product is suitable for both outdoor and indoor HVAC systems because it Is housed In a NEMA 4X enclosure. Temperature control of this nature is achieved by the use of sensors that can establish whether or not the temperatures are high or low, and thereafter switching on or off electrical appliances such as fans, heater as well as air conditioners to increase or decrease the temperatures.