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The Carrier 311213-403 Collector Box is the genuine OEM replacement designed specifically for the cold end of 90% AFUE secondary heat exchangers
high-performance flame envelope
Accurate Arc Delivery: Factory-set 1/8-inch spark gap and specifically angled electrodes reduce nuisance ignition failures and HVAC error codes
it includes the integral sensing bulb required to monitor suction line temperature for real-time flow adjustment
Trane SEN0900 Sensor 323613-751 The Carrier 311213-403 Collector BoxThe Trane SEN0900 Sensor is a precision engineered 1 2 inch NPT temperature sensor designed for accurate thermal monitoring in both commercial and residential HVACR applications. As an essential component for system optimization, this sensor monitors liquid or air temperatures within the heat exchanger or piping, providing critical data to the controller for climate control system efficiency. Utilizing a 10k ohm thermistor architecture, the Trane
