Johnson Controls T-4000-2140 Plastic Cover It serves as the direct

It serves as the direct replacement for Nordyne 661057

this disc ensures high-efficiency combustion by regulating the secondary air intake at the burner rack manifold

Burner degradation is often caused by high humidity in the mechanical room

Precise Pressure Control: Features an 8-12 inch water column (WC) adjustment range for stable LP gas delivery

Identified as a #48 orifice with a calibrated

Johnson Controls T-4000-2140 Plastic Cover It serves as the directThe Johnson Controls T 4000 2140 is a high durability beige plastic cover engineered specifically for horizontal mounted thermostats within the T 4000 series pneumatic control family. This rugged thermostat cover provides essential protection for bimetal sensing elements while maintaining a professional aesthetic with the integrated Johnson Controls logo. Designed for utility and precision, the faceplate features a high visibility F C thermometer for