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Optimized Airflow: The 11 inch diameter 8 inch width configuration maintains efficient heat exchange across the coil
As a direct successor that replaces White-Rodgers 21D64-1
Robust Construction: Heavy-duty metal housing resists thermal expansion and contraction cycles
The adjustable differential 20/40 switch allows for field tuning between 15 to 30 PSI
When you are servicing balanced port thermostatic expansion valves
Carrier 311213-402 Collector Box Els PW 17895 Optimized Airflow: The 11 inchThe Carrier 311213 402 Collector Box is a critical combustion component designed for high efficiency condensing gas furnaces. Engineered to manage the discharge of corrosive condensate and flue gases from the secondary heat exchanger, this OEM replacement part ensures the integrity of the secondary drainage system. Improper drainage or cracked collector boxes often lead to pressure switch trip outs or rollout issues, necessitating a direct match for
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