Acura RL 2005-2012 HVAC Specifications
Explore the detailed HVAC specifications for the 2005-2012 Acura RL, including heating, ventilation, and air conditioning components. Find essential information for maintenance, repairs, and upgrades to ensure optimal performance of your vehicle's climate control system.
2005-2012 Acura RL HVAC Specifications Overview Specifications
This document provides a comprehensive overview of the HVAC (Heating, Ventilation, and Air Conditioning) system specifications for the 2005-2012 Acura RL. It is designed to assist technicians, service personnel, and enthusiasts in understanding the system's components, functionality, and maintenance requirements. The document is organized into major sections for easy navigation, with detailed subsections covering specific aspects of the HVAC system. Use the search functionality to quickly locate specific information or navigate through the sections to explore the system in depth.
How to Use
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Key Specifications
Compressor Type
Electric Variable-Displacement
Refrigerant Type
HFC-134a
Heater Core Dimensions
11.8 in x 6.5 in x 1.2 in
Max Air Flow Rate
200 CFM
System Voltage
12V DC
Available Specifications
System Overview
This section provides a general overview of the HVAC system in the 2005-2012 Acura RL, including its primary components and functionality. It serves as a foundation for understanding the more detailed specifications provided in subsequent sections.
System Overview
This section provides a general overview of the HVAC system in the 2005-2012 Acura RL, including its primary components and functionality. It serves as a foundation for understanding the more detailed specifications provided in subsequent sections.
System Components
- Dual-zone automatic climate control system
- Electric compressor with clutch
- Condenser and evaporator coils
- Heater core with dual water valves
- Blower motor with variable speed control
- Air mix damper and mode damper actuators
System Features
- Automatic temperature control
- Air quality sensor
- Recirculation mode
- Rear seat ventilation (optional)
- Humidity control
- Fresh air and recirculated air modes
Heating System
This section details the heating system components, their specifications, and operational characteristics. It covers the heater core, water valves, and heating circuit.
Heating System
This section details the heating system components, their specifications, and operational characteristics. It covers the heater core, water valves, and heating circuit.
Heater Core Specifications
- Heater core type: Tube-and-fin design
- Heater core dimensions: 11.8 in x 6.5 in x 1.2 in
- Heater core coolant capacity: 1.5 liters
- Heater core pressure rating: Up to 15 psi
- Heater core flow rate: 2.5 GPM at 60°F
Heating System Controls
- Dual water valves for independent temperature control
- Electric control unit for water valve actuation
- Heater control valve operation range: 0-100%
- Heater system response time: Less than 5 seconds
- Heater system temperature range: 32°F to 95°F
Cooling System
This section provides detailed specifications for the cooling system, including the compressor, condenser, evaporator, and related components.
Cooling System
This section provides detailed specifications for the cooling system, including the compressor, condenser, evaporator, and related components.
Compressor Specifications
- Compressor type: Electric variable-displacement
- Compressor power consumption: Up to 1200W
- Compressor refrigerant type: HFC-134a
- Compressor clutch engagement time: Less than 0.5 seconds
- Compressor operating pressure: 100-300 psi
Evaporator and Condenser
- Evaporator type: Parallel-flow design
- Condenser type: Subcooling design
- Evaporator dimensions: 10.2 in x 7.9 in x 1.8 in
- Condenser dimensions: 25.6 in x 12.2 in x 0.9 in
- Evaporator and condenser fin spacing: 0.08 in
Air Distribution
This section covers the air distribution system, including vents, ducts, and controls. It provides specifications for air flow rates, distribution modes, and related components.
Air Distribution
This section covers the air distribution system, including vents, ducts, and controls. It provides specifications for air flow rates, distribution modes, and related components.
Air Distribution Modes
- Vent mode: Direct air flow to windshield and side vents
- Floor mode: Direct air flow to floor vents
- Mix mode: Combination of vent and floor modes
- Defrost mode: Maximum air flow to windshield
- Recirculation mode: Closes fresh air inlet
Air Flow Rates
- Blower motor speed settings: 0-100% variable control
- Max air flow rate: 200 CFM at 100% speed
- Min air flow rate: 20 CFM at 10% speed
- Air flow transition time: Less than 2 seconds
- Noise level at max speed: Less than 45 dB
Controls and Features
This section details the electronic controls, sensors, and advanced features of the HVAC system, including dual-zone control and air quality management.
Controls and Features
This section details the electronic controls, sensors, and advanced features of the HVAC system, including dual-zone control and air quality management.
Electronic Control Unit (ECU)
- Microprocessor-based control system
- Real-time temperature monitoring
- Automatic climate control algorithms
- Communication with other vehicle systems (CAN bus)
- Self-diagnostic capabilities
- Memory function for user preferences
Sensors and Inputs
- Ambient temperature sensor
- In-cabin temperature sensor
- Humidity sensor
- Solar radiation sensor
- Air quality sensor
- Blower motor speed sensor
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Component Specifications
Overview
- Type
- Dual-Zone Automatic Climate Control
- Configuration
- Split-Type with Rear Vents
- Platform
- Acura RL (KA9)
- Material
- Aluminum and Plastic Components
- Location
- Front and Rear Dashboard
Dimensions
- Compressor
- 12.0 in (304.8 mm) x 10.0 in (254.0 mm) x 8.0 in (203.2 mm)
- Condenser
- 35.0 in (889.0 mm) x 12.0 in (304.8 mm) x 1.0 in (25.4 mm)
- Evaporator
- 22.0 in (558.8 mm) x 8.0 in (203.2 mm) x 6.0 in (152.4 mm)
- Blower Motor
- 8.0 in (203.2 mm) x 6.0 in (152.4 mm) x 5.0 in (127.0 mm)
- Control Unit
- 10.0 in (254.0 mm) x 5.0 in (127.0 mm) x 3.0 in (76.2 mm)
Materials
- Compressor
- Aluminum Alloy
- Condenser Coil
- Aluminum Tube and Fin
- Evaporator Coil
- Aluminum Tube and Plate
- Ducts
- High-Density Polypropylene
- Control Panel
- Plastic with Electronic Components
Features
- Air Quality
-
- Activated Carbon Air Filtration
- Air Quality Sensor
- Automatic Recirculation Control
- Temperature Control
-
- Dual-Zone Climate Control
- Automatic Temperature Control
- Rear Seat Ventilation
- Airflow Control
-
- Multi-Directional Air Vents
- Variable Speed Blower
- Airflow Mode Settings
- Distribution
-
- Rear Seat Ducts
- Cabin Air Filter
Safety Features
- Pressure Protection
-
- High-Pressure Cut-Off Switch
- Low-Pressure Safety Switch
- Overheat Protection
- Automatic Compressor Overheat Protection
- Collision Protection
- System Shut-Off in Case of Collision
Comfort Features
- Quiet Operation
- Noise-Reducing Insulation
- Humidity Control
- Humidity Sensor and Control
- Air Distribution
- Multi-Zone Air Distribution System
Accessories
- Filters
-
- Cabin Air Filter
- Pollen Filter
- Deodorizing Filter
- Remote Control
- Remote Climate Control Operation
Maintenance
- Service interval
- 15,000 miles / 12 months
- Items
-
- Inspect and Replace Cabin Air Filter
- Check Refrigerant Levels
- Inspect Ducts for Leaks
- Clean Condenser Fins
- Notes
- Recommended to use genuine Acura parts and follow factory service procedures.
Warranty
- Basic
- Miles: 36000Years: 3Coverage: HVAC System Components
- Powertrain
- Miles: 70000Years: 5Coverage: Compressor and Major Components
- Corrosion
- Miles: 50000Years: 5Coverage: Corrosion Perforation
- Emissions
- Miles: 150000Years: 15Coverage: Emission-Related HVAC Components
Production Details
- Manufacturer
- Honda Motor Co., Ltd.
- Manufacturing Process
-
- Robotic Welding
- CFC-Free Refrigerant Assembly
- Laser Brazing for Heat Exchangers
- Quality Control
- inspections: Leak Testing, Pressure Testing, Performance TestingCertifications: ISO 9001:2015 Certified
- Sustainability Practices
- Recyclable Materials and CFC-Free Manufacturing
- Production Metrics
- Annual Production: Over 50,000 unitsDefect Rate: Less than 1% defect rate
Service Information for HVAC Service
Maintenance and service requirements specific to this component
- Inspect and replace cabin air filter
- Check refrigerant levels and top-off if necessary
- Inspect ducts and vents for blockages or damage
- Clean condenser fins and ensure proper airflow
Recommended to use genuine Acura parts and follow factory service procedures.
- Inspect compressor belt condition and tension
- Check for refrigerant leaks using UV dye
- Clean blower motor and fan assembly
- Test heater core for leaks and proper flow
Special tools required for refrigerant handling and system testing.
- Replace compressor belt
- Inspect and replace dryer if necessary
- Flush and recharge refrigerant system
- Test HVAC control module for proper function
Critical to follow proper procedures to avoid system contamination or damage.
Frequently Asked Questions
Find answers to common questions about torque specifications
Q1 What are the technical specifications of the HVAC system in a 2005-2012 Acura RL?
What are the technical specifications of the HVAC system in a 2005-2012 Acura RL?
The HVAC system in the 2005-2012 Acura RL features dual-zone automatic climate control, compatible with R-134a refrigerant. It includes a rear HVAC unit for models equipped with the optional rear climate control package. The system is designed to work seamlessly with the vehicle's electrical architecture, supporting features like air quality sensors and heated seats. Compatibility is maintained across all model years within the 2005-2012 range, with specific considerations for variations in trim levels and optional packages.
Q2 What are the maintenance requirements for the HVAC system?
What are the maintenance requirements for the HVAC system?
Regular maintenance of the HVAC system involves replacing the cabin air filter every 12,000 to 18,000 miles, checking refrigerant levels annually, and inspecting the condenser and evaporator for debris. It is recommended to have the system serviced every 36,000 miles to ensure optimal performance. Additionally, ensuring proper airflow by keeping vents clean and checking for blockages in the air intake can prevent issues.
Q3 How do I replace the HVAC control unit?
How do I replace the HVAC control unit?
To replace the HVAC control unit, start by disconnecting the battery to prevent electrical shocks. Remove the trim around the control panel using a plastic trim tool, then disconnect the electrical connectors and mounting screws. Carefully pull out the old unit and install the new one, ensuring all connectors are securely attached. Reassemble the trim and reconnect the battery. Test the system to ensure proper functionality.
Q4 How do I troubleshoot common HVAC issues?
How do I troubleshoot common HVAC issues?
Common HVAC issues include lack of cooling, which can be caused by low refrigerant levels or a malfunctioning compressor. Check the fuses and relays first, then inspect the condenser for blockages. If the system is not blowing air, check the blower motor resistor and ensure the cabin air filter is clean. For uneven temperature distribution, inspect the blend doors and actuators for proper operation.
Q5 How can I optimize the performance of my HVAC system?
How can I optimize the performance of my HVAC system?
To optimize HVAC performance, ensure the condenser is clean and free from debris, and use the recirculate mode to improve cooling efficiency. Regularly check and maintain the correct refrigerant levels, and ensure all doors and windows are sealed properly when the system is in use. Additionally, using the defrost mode periodically can help maintain clear visibility and prevent moisture buildup.
Factory Service Resources
Access official service manuals, technical documents, and repair guides. These resources provide detailed procedures, specifications, and diagrams directly from the manufacturer.
2005-2012 Acura RL Service Manual
Coming SoonComprehensive guide covering diagnostics, repairs, and maintenance for the HVAC system, including detailed wiring diagrams and troubleshooting procedures.
Technical Service Bulletin: HVAC Update
Coming SoonAddresses known issues with the HVAC system, including updates for blend door actuators and refrigerant leaks, applicable to 2005-2012 Acura RL models.
Acura Genuine Parts Catalog
Coming SoonOfficial parts guide for the 2005-2012 Acura RL, listing all OEM components for the HVAC system, including filters, actuators, and refrigerant.
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Technical Information
- All specifications, including torque values, fluid capacities, and maintenance procedures, should be verified against your vehicle's factory service manual.
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