Description
The Bosch HVAC 8733952468 Low Fire Pressure Switch is a sensing component used in condensing gas furnace systems to monitor draught pressure during low-fire operation. It is applied and verifies proper airflow conditions before and during combustion at reduced firing rates in HVAC systems. It is positioned in the inducer pressure circuit to respond to changes in pressure differential. It operation within the furnace assembly is to ensure correct draught conditions during low-fire heating stages and support controlled system operation across variable load conditions.
