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Chrome-bevel sheet on grid paper — specs and return notes filed under the bay.
Enhanced Wire Management: Features internal set screws and a dedicated copper ground bar for secure
and P331-2206
while the 306800 (FS7-28S) uses stainless steel paddles for corrosive environments or specialized "S" model switches
System Restoration: Eliminates internal leakage and restores accurate linear flow characteristics in aging HVAC systems
Carrier HH12ZB240 Limit Switch Enhanced Wire Management: Features internalThe Carrier HH12ZB240 is a high limit OEM replacement part engineered for precise thermal regulation and safety in Carrier, Bryant, and Payne gas furnaces. As a normally closed (NC) switch, it is designed to protect the heat exchanger from damage caused by restricted airflow or blower failure. This auto limit switch functions on a specific thermal cycle, opening the circuit when internal temperatures reach 240F to interrupt the gas valve and closing