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often indicating the switch is stuck open or tripped due to airflow issues
Thermal Resistance: Specifically formulated to handle the rapid temperature fluctuations and high operation setpoints of commercial Lochinvar boilers
Terminals 1 and 3 are typically used for high-limit safety (opening on rise)
it provides high-efficiency particulate filtration to prevent metering device clogging and compressor failure
High-Temperature Protection: Specifically calibrated with a 230-250F open/close threshold to prevent heat exchanger cracking and thermal runaway
Nordyne 151886R Restrictor Orifice often indicating the switch isWhen you are troubleshooting a furnace that is running hot or experiencing frequent limit switch trips, the Nordyne 151886R Restrictor Orifice is a critical component to inspect. Designed specifically for inducer assembly airflow regulation, this genuine OEM Nordyne part maintains the precise static pressure required for optimal combustion. As a 1. 50 inch restrictor orifice, it manages the exhaust velocity to ensure the heat exchanger transfers
