Fanático de FAW: El 2 Secretos críticos para ser impecable, Potente flujo de aire en la cabina

Welcome to this in-depth engineering analysis of the Fanático de FAW asamblea (Asamblea 711). Este es el “active core” of the entire HVAC system, el “lógica” assembly that functions as the “pulmones” for the FAW Jiefang CA4251P66K24T1A3E5 6×4 tractor semirremolque diésel. This is the system responsible for generating and controlling the flow of all heated and cooled air within the cab.

El Fanático de FAW el montaje es un “lógica dual” sistema. It is not just a fan; es un “smart” blower module. It consists of two key components: the ‘Motor with impeller assy’ (8101045-A65-C00), cual es el “músculo” that moves the air, and the ‘Speed control module’ (8101080-A65-C00), cual es el “cerebro” that regulates the airflow.

This system works in direct concert with the ‘Automatic A/C’ asamblea (Asamblea 709). This in-depth guide is a critical resource for HVAC technicians and parts specialists. Deconstruiremos todo Fanático de FAW assembly into its two distinct serviceable components, analizando el “centrifugal” logic of the impeller and the “variable-speed” (PWM) logic of the control module.

Componente 1: El “Muscle” & “Centrifugal” Lógica (8101045-A65-C00) (El “Más extenso” Módulo)

The ‘Motor with impeller assy’ (8101045-A65-C00) es el “corazón” del Fanático de FAW sistema. This is the primary serviceable unit, combining the 24V DC motor and the “squirrel cage” fan into a single, pre-balanced assembly. Es “lógica” is to create high-pressure, high-volume airflow.

1. El “Impeller” Lógica (Centrifugal Force):

El “impeller” (叶轮) es el “squirrel cage” o “centrifugal” fan wheel. Es “lógica” is fundamentally different from a simple “blade” admirador.

A blade fan (like a desk fan) es un “axial” admirador; it pushes air in a straight line. Este Fanático de FAW es un “centrifugal” admirador. Es “lógica” is to pull air in through its center (el “ojo”) and then use centrifugal force to “fling” the air outwards at a 90-degree angle at high speed.

Este “centrifugal logic” is essential for an HVAC system. It does not just create “flow” (CFM); it creates “static pressure.” Este “pressure logic” is what gives the air the *force* it needs to push through the highly-restrictive, dense-fin cores of the ‘Evaporator’ (Asamblea 709) and ‘Heater Core’ (Asamblea 709), and then through the ‘Blower Ducts’ (Asamblea 710) to the driver’s feet.

2. El “Motor” Lógica (24En DC):

Este es el “músculo” del Fanático de FAW. It is a high-torque, 24-volt DC motor designed for long life in a high-heat environment. Es “lógica” es simple: to provide the high-speed (3000+ RPM) rotation needed to make the impeller effective.

Failure Logic (Motor): This is a primary failure point.

• Squealing: The motor’s internal bearings (casquillos) wear out from heat and dust, creating a loud, agudo “squeal” o “chirp” when the fan is on.
• “Dead” Admirador: The motor’s “brushes” (the carbon contacts that deliver power) wear down to nothing, and the motor stops working completely.

3. El “Balanced Assembly” Lógica:

Este componente es un “welded assembly” (总成) for a critical “Nvh” (Ruido, Vibración, Dureza) lógica. The plastic impeller is “spin-balanced” on the motor shaft at the factory, often with small, strategically-placed metal clips.

Este “balance logic” es esencial. A 1-gram imbalance at 3,000 RPM creates a *massive* “tambalearse” and a low-frequency “drone” that can be felt through the entire dashboard. This is why you *cannot* replace just the motor or just the fan wheel. The entire ‘Motor with impeller assy’ must be replaced as a single, pre-balanced serviceable unit to ensure a silent, vibration-free operation of the Fanático de FAW.

Centro 2: El “Variable Speed” Lógica (Componente 2)

The ‘Speed control module’ (8101080-A65-C00) es el “cerebro” del Fanático de FAW. This is the component that tells the “músculo” (Componente 1) how fast to spin. This is a critical serviceable unit for the “Automatic” C.A.

“Resistor” Lógica (Manual): In a simple, “manual” A/C system, this component is a “blower motor resistor.” It’s a set of coiled-wire resistors. “Low” speed forces power through 3 resistors. “Medium” forces it through 1. “Alto” bypasses all resistors.

“Módulo” Lógica (Automatic): This part is a “Módulo” (模块). Este “lógica” is far more advanced. It is a solid-state “final stage resistor” containing transistors. Es “lógica” is to receive a “Pulse Width Modulation” (PWM) signal from the ‘Automatic A/C operating mechanism’ (Asamblea 710, Componente 19).

Este “PWM logic” allows the A/C “cerebro” to request *any* fan speed. It can ask for 20% velocidad, 47% velocidad, o 81% velocidad. Este “infinitely variable” speed is the “lógica” that allows the automatic climate control to *silently* and *precisely* maintain the cab’s temperature.

Falla “Lógica”: Este componente es el #1 cause of Fanático de FAW speed problems. Its transistors get extremely hot (it’s mounted in the air duct to be cooled by its own airflow). When they overheat and fail, el “lógica” breaks.

The classic symptom: “The fan only works on HIGH.” This happens because the “Alto” setting is a “failsafe logic” that *bypasses* this module completely and sends 24V directly to the motor. If the fan works on high but *not* on any other speed, this ‘Speed control module’ is the failed serviceable part.

FAW Fan Parts List & Presupuesto

La siguiente tabla proporciona la información completa, desglose detallado de todos 2 tipos de componentes identificados en el Fanático de FAW Conjunto para el tractor FAW CA4251P66K24T1A3E5..

Presupuesto

Las especificaciones para el Fanático de FAW are defined by its function as the “brain and muscle” of the cab’s HVAC airflow system.