this part ensures that the combustion process remains within safe thermal parameters

High-Temperature Protection: Triggers a shut-down at 240°F to prevent heat exchanger overheating

including specialized 48FCDA and 48HCDA models

The internal O-ring stuffing box is serviceable while the system is under pressure

are properly converted and calibrated for liquid propane (LP) operation

Sensus 143-82-021-01 Spring this part ensures that theThe Sensus 143 82 021 01 Blue Black Spring is a critical calibration component designed specifically for the Sensus 243 8 gas regulator. In the field, technicians rely on this spring to establish a precise outlet pressure range of 5" to 8. 5" w. c. (Water Column). This replacement regulator spring is engineered to maintain consistent downstream pressure, ensuring the diaphragm case assembly responds accurately to load fluctuations. Its blue black