What does this diagram show?

It shows a Ford HVAC air distribution schematic (illustration AM2270-A) with arrows tracing airflow through the heater/A-C plenum to the defroster, panel, and floor outlets, plus the three rotary climate control knobs.

How is the temperature knob labeled?

The center temperature control knob is labeled COOL and WARM.

Does the document state which vehicle or year it applies to?

No. The only identifying text is the Ford illustration number AM2270-A; no year, model, or engine is stated on the scan.

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Ford Manual HVAC Air Distribution Diagram AM2270-A - Heater/AC Airflow & Controls

HVAC airflow routing diagram with heater case, ducts and control knobs

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Schematic of HVAC airflow routing through the heater/AC case and ducts with control-knob settings.

AI caption August 2008 · Photo 193 of 4867

This document is a Ford air distribution (HVAC) schematic, identified by the Ford illustration number AM2270-A. The upper portion shows a cutaway view of the heater/air-conditioning plenum assembly with black arrows tracing airflow paths through the housing, past the blend door, heater core, and evaporator core, and out through the defroster, panel (dash), and floor outlets. The lower portion depicts the three rotary climate control knobs: a fan/blower speed control on the left, a temperature control in the center marked COOL and WARM, and a function/mode selector on the right with positions including MAX A/C, A/C, OFF, PANEL & FLOOR, FLOOR, FLR & DEF, and DEF. A reader can learn how air is routed through the HVAC case for each mode and how the manual climate control head is laid out. The scan is small and low resolution, so fine labels on the knobs are only partially readable. No year, model, or engine applicability is stated on the document itself, and no part numbers other than the illustration reference AM2270-A are visible.

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Frequently asked questions

What does this diagram show?: It shows a Ford HVAC air distribution schematic (illustration AM2270-A) with arrows tracing airflow through the heater/A-C plenum to the defroster, panel, and floor outlets, plus the three rotary climate control knobs.
What positions are on the mode selector knob?: The right-hand function knob shows positions including MAX A/C, A/C, OFF, PANEL & FLOOR, FLOOR, FLR & DEF, and DEF (some labels are partially legible).
How is the temperature knob labeled?: The center temperature control knob is labeled COOL and WARM.
Does the document state which vehicle or year it applies to?: No. The only identifying text is the Ford illustration number AM2270-A; no year, model, or engine is stated on the scan.