ensuring exact fitment and electrical specifications are met without field modifications

this part is engineered to monitor heat exchanger temperatures

the Sporlan See-All series is fully compatible with both mineral oils and polyolester (POE) lubricants commonly found in modern 410A systems

Orifice sizing is fuel-specific

Safety Compliance: SPNC Open on Rise logic prevents ignition if venting or intake blockages are detected

Johnson Controls T-4756-2145 Plastic Cover ensuring exact fitment and electricalThe Johnson Controls T 4756 2145 Plastic Cover is a high durability replacement faceplate designed specifically for T 4000 Series Pneumatic Room Thermostats. This beige, vertically mounted cover is engineered for dual temperature applications, featuring 2 setpoint windows to allow for clear visibility of heating and cooling dials. As a veteran grade HVAC pneumatic accessory, it provides a clean, professional finish for T 4756 heating cooling