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Dual-Circuit Control: The DPST NO configuration allows for the simultaneous management of two separate electrical paths from a single pilot signal
provided the discharge piping is self-draining
High Electrical Rating: Rated for up to 20A at 240V and 16A at 277V
this double box mixing tube facilitates a uniform air-gas mixture
Carrier 325423-401 Vent Coupling 321142-301 Dual-Circuit Control: The DPST NOThe Carrier 325423 401 Vent Coupling is a critical OEM replacement part designed specifically for condensing gas furnaces. This flexible rubber coupling provides a secure, airtight seal between the furnace's secondary heat exchanger and the PVC vent piping, ensuring the safe induction of combustion air and the efficient removal of flue gases. Specifically engineered for 90+ AFUE furnaces, including the Carrier PG9MAA, PG9MXA, and PG9UAA series, this
