Whether you are performing a seasonal tune-up or a corrective repair

and M9220 series power units

Precision Machined: The

and Day & Night furnaces requiring 1/8" ID pressure hoses

the integrated ignition control module will terminate the gas valve circuit to prevent hazardous fuel buildup

Johnson Controls T-4000-3140 Plastic Cover Whether you are performing aProfessional grade Johnson Controls T 4000 3140 plastic covers are engineered for high performance pneumatic room thermostat applications. This horizontal mount faceplate is compatible with nearly all T 4000 series instruments, excluding the T 4100 and T 4600 models. Constructed from durable, white thermoplastic, the T 4000 3140 features a built in Fahrenheit Celsius thermometer to provide clear ambient temperature feedback for facility maintenance