Why does the kit include three diaphragms if some models only use two

Technical cross-references include part number 1171770 and LA22LA034

Does this kit eliminate the need for a main boiler control

Precise Adjustment: Equipped with a visible "Sight-Set" calibrated scale for easy setpoint verification without removing the cover

providing balanced airflow across the coil for improved heat transfer

Amana-Goodman 0259F00009P Wire 340155-7026 Why does the kit includeThe Amana Goodman 0259F00009P Wire Harness is a critical OEM replacement part designed for precision connectivity within HVAC systems. This 15 pin female wire harness facilitates seamless communication between the control board and various system components, ensuring reliable electrical distribution. Engineered to meet strict factory specifications, this Goodman furnace wiring assembly provides a secure, vibration resistant connection that prevents