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While the coil is ruggedly constructed
Key Benefits for the Contractor Optimized Thermal Protection: Fixed 180°F trip point provides a hard-limit safety barrier against overheating in gas-fired furnaces and industrial equipment
instantly interrupting the gas valve circuit if airflow obstructions or blower failures cause internal temperatures to exceed safe operational parameters
Color-Coded Identification: The brown spring designation allows for quick visual verification of the pressure rating during field service
Johnson Controls T-4000-2145 Plastic Cover While the coil is ruggedlyThe Johnson Controls T 4000 2145 Plastic Cover is a professional grade replacement engineered specifically for T 4000 series pneumatic thermostats. This beige thermostat cover is designed for vertical mounting applications and provides a clean, secure finish for your field installations. Featuring a single set point window, it allows for immediate visual verification of thermostat settings without the need to remove the housing, streamlining routine