What are the shipping requirements for this component

What is the purpose of the manual override on this assembly

Aesthetic Integration: Small footprint designed for single-gang mounting

Specifically designed for R-22 refrigerant

Burnham Boiler 105197-01 Cap 321702-401 What are the shipping requirementsThe Burnham Boiler 105197 01 is a critical flue temperature sensor cap kit engineered specifically for Alpine series boilers. As a primary safety and efficiency component, this OEM cap facilitates accurate thermal monitoring of exhaust gases, operating within a high performance range of 100F to 800F. Maintaining the integrity of the flue temp sensor interface is vital for preventing overheating and ensuring the control board receives precise data for