Does this kit include both internal and external seals

outperforming standard HVAC replacement parts in high-cycle motor applications

Built as a versatile HVAC high limit replacement

It simplifies field service by consolidating two protection devices into a single housing

What causes a 160°F limit switch to trip frequently

Johnson Controls T-4756-1738 Plastic Cover Does this kit include bothThe Johnson Controls T 4756 1738 is a durable beige plastic thermostat cover and faceplate designed specifically for the T 4000 series pneumatic room thermostats. This field replacement component is engineered for horizontal mounting configurations where dual setpoint visibility is required. It features two clear setpoint windows to accommodate high low or heating cooling adjustments without removing the enclosure. The integrated bimetal thermometer