Acura CL 1997-1999 HVAC Specifications
Comprehensive technical specifications for the HVAC system in the 1997-1999 Acura CL. Includes detailed information on system components, refrigerant requirements, climate control functionality, and troubleshooting tips.
Acura CL HVAC Specifications Overview Specifications
This document provides a comprehensive guide to the HVAC (Heating, Ventilation, and Air Conditioning) system of the 1997-1999 Acura CL. It includes detailed specifications, technical information, and operational guidelines for both drivers and technicians. Use this guide to understand system components, troubleshoot issues, and perform routine maintenance.
How to Use
To find specific information, use the search functionality by typing keywords related to the HVAC system, such as 'compressor,' 'heater core,' or 'blower motor.'
Navigate through the sections by scrolling or using the table of contents. Each section provides detailed information organized by subsystems, with subsections offering technical specifications and operational details.
Key Specifications
Compressor Type
Piston-type with electromagnetic clutch
Refrigerant Type
R-12 (early models) or R-134a (later models)
Blower Motor Speeds
4-speed manual control
Heater Core Flow Rate
Up to 2.5 gallons per minute
Cabin Air Filter
Standard rectangular type
Available Specifications
System Overview
The HVAC system in the 1997-1999 Acura CL is designed to provide climate control for driver and passenger comfort. It includes an automatic climate control system with features such as temperature control, air conditioning, and air recirculation. The system integrates components like the compressor, condenser, evaporator, and heater core to maintain optimal cabin conditions.
System Overview
The HVAC system in the 1997-1999 Acura CL is designed to provide climate control for driver and passenger comfort. It includes an automatic climate control system with features such as temperature control, air conditioning, and air recirculation. The system integrates components like the compressor, condenser, evaporator, and heater core to maintain optimal cabin conditions.
Key Components
- Automatic climate control system
- Compressor with clutch engagement
- Condenser and evaporator coils
- Heater core with temperature control valve
- Blower motor with multiple speed settings
System Features
- Dual-zone temperature control (driver and passenger)
- Air recirculation mode
- Defrost function
- Cabin air filter
- Climate control panel with digital display
Heating System
The heating system in the Acura CL is designed to provide warmth to the cabin efficiently. It uses a combination of a heater core, blower motor, and temperature control valve to circulate hot air through the vents.
Heating System
The heating system in the Acura CL is designed to provide warmth to the cabin efficiently. It uses a combination of a heater core, blower motor, and temperature control valve to circulate hot air through the vents.
Heater Core
- Heater core made of brass and aluminum
- Integrated temperature control valve
- Coolant flow regulated by the thermostat
- Heater hoses connected to engine cooling system
- Core replacement requires coolant draining
Blower Motor
- Variable-speed blower motor
- Four-speed manual control
- Electronic control for automatic modes
- Durable brushless motor design
- Replaceable motor and resistor assembly
Cooling System
The cooling system in the Acura CL is designed to provide efficient air conditioning and cabin cooling. It operates using a refrigerant-based system with components like the compressor, condenser, and evaporator.
Cooling System
The cooling system in the Acura CL is designed to provide efficient air conditioning and cabin cooling. It operates using a refrigerant-based system with components like the compressor, condenser, and evaporator.
Compressor
- Belt-driven compressor with electromagnetic clutch
- High-efficiency piston-type design
- Integrated pressure relief valve
- Requires refrigerant recharge after service
- Clutch engagement controlled by A/C switch
Condenser and Evaporator
- Condenser mounted in front of radiator
- Evaporator located behind dashboard
- Both coils made of aluminum for better heat transfer
- Condenser fans integrated with radiator fans
- Evaporator includes expansion valve
Air Distribution
The air distribution system in the Acura CL ensures that heated or cooled air is directed to the cabin effectively. It includes a network of ducts, vents, and controls to optimize airflow.
Air Distribution
The air distribution system in the Acura CL ensures that heated or cooled air is directed to the cabin effectively. It includes a network of ducts, vents, and controls to optimize airflow.
Ducts and Vents
- Ducts made of durable plastic material
- Vents adjustable for air direction control
- Dedicated ducts for defrost function
- Rear cabin vents integrated into the center console
- Cargo area ducts for rear passenger comfort
Recirculation Mode
- Air recirculation mode to reduce odors
- Cabin air filter included in recirculation path
- Automatic mode switches between fresh and recirculated air
- Manual override available via climate controls
- Filter replacement recommended every 15,000 miles
Controls and Features
The HVAC system in the Acura CL is controlled by an advanced panel with electronic controls. It offers features like automatic temperature control, air quality management, and customizable settings.
Controls and Features
The HVAC system in the Acura CL is controlled by an advanced panel with electronic controls. It offers features like automatic temperature control, air quality management, and customizable settings.
Control Panel
- Digital climate control display
- Touch-sensitive buttons for operation
- Dual-zone temperature control
- Automatic defrost function
- Cabin air filter indicator
- Service light reminder
Sensors and Automation
- Ambient temperature sensor
- In-cabin temperature sensor
- Humidity sensor for automatic mode
- Sunlight sensor for climate control
- Electronically controlled actuators
- Adaptive learning for user preferences
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Component Specifications
Overview
- Type
- Manual HVAC System
- Configuration
- Dual-Zone Climate Control
- Platform
- SA6 Chassis
- Material
- Aluminum and Steel Components
- Location
- Under Dashboard
Dimensions
- Hvac Module Length
- 24 inches
- Hvac Module Width
- 12 inches
- Hvac Module Height
- 8 inches
- Blower Motor Diameter
- 6 inches
- Evaporator Coil Size
- 14x12x2 inches
- Condenser Coil Size
- 20x14x2 inches
- Air Ducting Diameter
- 4 inches
- Refrigerant Lines Diameter
- 3/8 inch and 1/2 inch
Materials
- Hvac Housing
- Aluminum Alloy
- Evaporator And Condenser Coils
- Aluminum Fins and Tubes
- Heater Core
- Copper Tubes with Aluminum Fins
- Air Ducts
- Rubber and Plastic
Features
- Air Conditioning
-
- Manual Climate Control
- Dual-Zone Temperature Control
- Rear Seat Ducts
- Air Quality Sensor
- Recirculation Mode
- Heating
-
- Copper Core Heater
- Temperature Blend Door
- Heated Floor Ducts
- Rear Defrost
- Ventilation
-
- Dashboard Vents
- Floor Vents
- Rear Vents
- Fresh Air Intake
- Defrost
-
- Front Defrost Vents
- Rear Window Defrost
- Heated Mirrors
- Temperature Control
-
- Manual Temperature Knob
- Dual-Zone Control
- Fan Speed Control
- Airflow Direction Control
- Fan Speeds
-
- Low
- Medium
- High
- Air Quality
-
- Cabin Air Filter
- Pollutant-Sensing Mode
Safety Features
- Pressure Switches
-
- High-Pressure Cut-Off Switch
- Low-Pressure Cut-Off Switch
- Thermal Protection
-
- Overheat Protection
- Blower Motor Thermal Cut-Off
- Leak Detection
-
- Refrigerant Leak Detection
- System Pressure Monitoring
Comfort Features
- Dual Zone Control
- Independent Driver and Passenger Temperature Settings
- Air Quality Sensor
- Automatic Recirculation Mode
- Rear Seat Vents
- Dedicated Rear Seat Air Ducts
- Defrost System
- Quick Defrost Function
- Ventilation Modes
-
- Fresh Air
- Recirculation
Accessories
- Cabin Air Filter
-
- Replaceable Filter Element
- Filter Life Indicator
- Condenser Fan
-
- Single-Speed Fan
- Dual-Speed Fan
- Refrigerant Recharge Kit
-
- R-12 Compatible
- Recharge Hose
- Pressure Gauge
Maintenance
- Service interval
- Every 15,000 miles or 12 months
- Items
-
- Inspect and Replace Cabin Air Filter
- Check Refrigerant Level
- Inspect Hoses and Connections
- Clean Condenser Coils
- Lubricate Blower Motor Bearings
- Check Heater Core for Leaks
- Notes
- Ensure proper refrigerant levels for optimal performance. Clean condenser coils annually to maintain efficiency.
Warranty
- Basic
- Miles: 36,000 milesYears: 3 yearsCoverage: Parts and Labor
- Corrosion
- Miles: Unlimited milesYears: 5 yearsCoverage: Perforation of Body Panels
- Emissions
- Miles: 24,000 milesYears: 2 yearsCoverage: Emissions-Related Components
- Maintenance
- Miles: 12,000 milesYears: 1 yearCoverage: Scheduled Maintenance
Production Details
- Manufacturer
- Honda Motor Co., Ltd.
- Manufacturing Process
-
- Robotic Welding
- Laser Cutting
- Automated Assembly
- Quality Control
- inspection: 100% End-Of-Line TestingCertifications: ISO 9001, IATF 16949
- Sustainability Practices
-
- Recyclable Materials
- Energy-Efficient Manufacturing
- Production Metrics
- Units Per Day: 500 units/dayCycle Time: 45 minutes/unit
Service Information for HVAC Service
Maintenance and service requirements specific to this component
- Inspect and Replace Cabin Air Filter
- Check Refrigerant Level
- Inspect Hoses and Connections
- Clean Condenser Coils
- Lubricate Blower Motor Bearings
- Check Heater Core for Leaks
Ensure proper refrigerant levels for optimal performance. Clean condenser coils annually to maintain efficiency.
- Inspect Blower Motor Resistor
- Check for Refrigerant Leaks
- Clean or Replace Air Filter
- Inspect Ducts for Leaks
- Test Heater Core Valves
- Check Thermostat Operation
Special tools may be required for certain procedures. Consult service manual for details.
- Replace Blower Motor Brushes
- Clean Condenser Coils
- Inspect and Replace Hoses
- Check HVAC Control Module
- Test Heater Core Performance
- Inspect Temperature Sensors
Critical warnings or requirements for major service
Frequently Asked Questions
Find answers to common questions about torque specifications
Q1 What is the refrigerant type and capacity for the 1997-1999 Acura CL HVAC system?
What is the refrigerant type and capacity for the 1997-1999 Acura CL HVAC system?
The 1997-1999 Acura CL HVAC system uses R-134a refrigerant. The total system capacity is approximately 21.2 ounces (600 grams). Always refer to the under-hood label for exact specifications.
Q2 How do I diagnose a weak airflow from the HVAC system?
How do I diagnose a weak airflow from the HVAC system?
Weak airflow can result from a clogged cabin air filter, a malfunctioning blower motor, or obstructed air ducts. The cabin air filter should be inspected and replaced every 15,000-30,000 miles. The blower motor resistor or control module may also require testing and replacement if necessary.
Q3 What is the procedure for recharging the AC system in a 1997-1999 Acura CL?
What is the procedure for recharging the AC system in a 1997-1999 Acura CL?
To recharge the AC system, first evacuate the system using a vacuum pump to remove moisture and air. Then, recharge with R-134a refrigerant to the specified capacity of 21.2 ounces (600 grams). Use a manifold gauge set to ensure proper high and low-side pressures, typically 25-45 psi on the low side and 150-250 psi on the high side, depending on ambient temperature.
Q4 Why is my AC blowing warm air intermittently?
Why is my AC blowing warm air intermittently?
Intermittent warm air can be caused by a failing AC compressor clutch, low refrigerant levels, or a faulty expansion valve. Check refrigerant levels and inspect the compressor clutch for proper engagement. If the issue persists, the expansion valve or compressor may need replacement.
Q5 How do I reset the HVAC control module in a 1997-1999 Acura CL?
How do I reset the HVAC control module in a 1997-1999 Acura CL?
To reset the HVAC control module, disconnect the negative battery terminal for 10-15 minutes. Reconnect the terminal and test the system. If issues persist, the control module may require professional diagnosis or replacement.
Factory Service Resources
Access official service manuals, technical documents, and repair guides. These resources provide detailed procedures, specifications, and diagrams directly from the manufacturer.
1997-1999 Acura CL HVAC System Service Manual
Coming SoonOfficial service manual detailing HVAC system components, diagnostics, and repair procedures.
AC Recharging Guide for Acura Vehicles
Coming SoonStep-by-step guide for safely recharging the AC system in Acura vehicles, including pressure specifications.
Blower Motor Replacement Tutorial
Coming SoonDetailed instructions for diagnosing and replacing the HVAC blower motor in 1997-1999 Acura CL models.
Cabin Air Filter Replacement Guide
Coming SoonInstructions for locating and replacing the cabin air filter to maintain optimal HVAC performance.
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