Acura NSX 1990-2005 HVAC Specifications
Detailed technical specifications and operational insights for the HVAC system in the 1990-2005 Acura NSX. Learn about system components, refrigerant types, and troubleshooting tips for optimal climate control performance.
HVAC Specifications Overview Specifications
This document provides a detailed overview of the HVAC (Heating, Ventilation, and Air Conditioning) system specifications for the 1990-2005 Acura NSX. It includes technical details, operating guidelines, and key components. Use this guide to identify system components, troubleshoot issues, and understand the functionality of the HVAC system. Navigate through the sections below for specific information.
How to Use
To find specific information, use the search functionality by entering keywords related to HVAC components, such as 'compressor,' 'heater core,' or 'blower motor.'
Navigate through the sections by scrolling or using the table of contents. Each section provides detailed subsections with technical specifications and key points.
Key Specifications
Compressor Type
Denso 10P17C
Refrigerant Type
R-134a (later models)
Heater Core Flow Rate
2 GPM
Blower Motor Speeds
4-speed
Condenser Cooling Capacity
30,000 BTU/h
Available Specifications
System Overview
This section provides a general overview of the HVAC system, including its components, functionality, and design. It serves as a starting point for understanding the system's architecture.
System Overview
This section provides a general overview of the HVAC system, including its components, functionality, and design. It serves as a starting point for understanding the system's architecture.
System Components
- Compressor: Denso 10P17C
- Condenser: Tube-and-fin type
- Evaporator: Plate-and-fin type
- Heater Core: Tube-and-fin type
- Blower Motor: 4-speed
- Control Unit: Electronic climate control
Refrigerant Information
- Refrigerant Type: R-12 (early models), R-134a (later models)
- Refrigerant Capacity: 550g (R-12), 500g (R-134a)
- Refrigerant Pressure: Low side 60-80 psi, high side 150-250 psi
Heating System
This section details the heating system components, their specifications, and operating characteristics. It includes information on the heater core, water valve, and control mechanisms.
Heating System
This section details the heating system components, their specifications, and operating characteristics. It includes information on the heater core, water valve, and control mechanisms.
Heater Core Details
- Heater Core Type: Tube-and-fin
- Core Dimensions: 10x6x1 inches
- Inlet/Outlet Size: 1/2" NPT
- Flow Rate: 2 GPM
- Maximum Pressure: 15 psi
Electrical Components
- Heater Switch: 3-speed
- Blower Motor Resistor: 4-speed
- Temperature Control Valve: Wax pellet type
- Circuit Fuse: 20A
Air Conditioning System
This section provides detailed specifications for the air conditioning system, including the compressor, condenser, evaporator, and associated controls.
Air Conditioning System
This section provides detailed specifications for the air conditioning system, including the compressor, condenser, evaporator, and associated controls.
Compressor Specifications
- Compressor Type: Denso 10P17C
- Displacement: 145cc
- Clutch Type: Electromagnetic
- Oil Type: PAG 46
- Operating Pressure: 150-250 psi
Condenser Specifications
- Condenser Type: Tube-and-fin
- Core Dimensions: 26x12x1 inches
- Fan Motor: 12V, 15A
- Cooling Capacity: 30,000 BTU/h
- Fins per Inch: 12
Evaporator Specifications
- Evaporator Type: Plate-and-fin
- Core Dimensions: 10x6x1 inches
- Expansion Valve: TXV type
- Drain Hose Diameter: 1/2"
- Drier Capacity: 40g
Controls & Accessories
This section covers the control systems and accessories for the HVAC system, including switches, sensors, and actuators.
Controls & Accessories
This section covers the control systems and accessories for the HVAC system, including switches, sensors, and actuators.
Control Unit
- Control Type: Electronic climate control
- Temperature Range: 40°F to 90°F
- Airflow Modes: 4 settings
- Fan Speeds: 4-speed
- Display Type: LCD
Sensors
- Temperature Sensor: Thermistor type
- Humidity Sensor: Capacitive type
- Pressure Sensor: Manifold absolute pressure
- Sunload Sensor: Photodiode type
Actuators
- Blend Door Actuator: Stepper motor
- Mode Door Actuator: DC motor
- Recirculation Actuator: DC motor
- Air Mix Door Actuator: Stepper motor
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Component Specifications
Overview
- Type
- Manual Climate Control System
- Configuration
- Rear-engine layout compatible
- Platform
- Acura NSX (NA1/NA2)
- Material
- Aluminum and plastic components
- Location
- Front dashboard and rear compartment
Dimensions
- Main Unit Length
- 24.00 in (610 mm)
- Main Unit Width
- 12.00 in (305 mm)
- Main Unit Height
- 6.00 in (152 mm)
- Compressor Size
- 5.50 in (140 mm) diameter
- Condenser Size
- 26.00 in (660 mm) length x 12.00 in (305 mm) width
- Evaporator Size
- 14.00 in (356 mm) length x 8.00 in (203 mm) width
- Ducting Diameter
- 3.00 in (76 mm) to 5.00 in (127 mm)
Materials
- Compressor
- Aluminum alloy with steel components
- Condenser
- Aluminum tubes and fins
- Evaporator
- Aluminum tubes and fins
- Ducting
- Polypropylene and rubber
- Refrigerant Lines
- Steel with rubber insulation
Features
- Air Distribution Modes
-
- Front vents
- Floor vents
- Defrost vents
- Temperature Control
-
- Manual temperature dial
- Cabin air filter
- Heating and cooling blend door
- Air Quality
-
- Cabin air filter
- Recirculation mode
- Fresh air mode
- Noise Reduction
-
- Insulated ducting
- Silent blower motor operation
- System Controls
-
- Three-speed fan control
- Manual AC switch
- Temperature blend control
Safety Features
- Thermal Protection
-
- Overheat protection
- Low refrigerant pressure switch
- High pressure cut-off switch
- Pressure Relief
- Pressure relief valve on compressor
- Electrical Protection
- Fuse protection for HVAC circuit
- Refrigerant Safety
- R-12 compliant system
Comfort Features
- Air Conditioning
-
- Manual AC control
- Variable compressor operation
- Heating
-
- Temperature blend door
- Heater core with bypass valve
- Defrosting
-
- Defrost mode
- Air recirculation
- System Operation
- Quiet operation modes
Accessories
- installation Kits
-
- Recharge kit
- O-ring seal kit
- Cabin air filter
- Maintenance Kits
-
- Blower motor resistor
- Climate control switches
- Thermostat
- Upgrade Kits
-
- R-134a conversion kit
- Digital climate control retrofit
- High-performance blower motor
Maintenance
- Service interval
- Every 15,000 miles (24,000 km) or 12 months
- Service Items
-
- Inspect and recharge refrigerant
- Replace cabin air filter
- Inspect belts and hoses
- Check for leaks in refrigerant lines
- Test blower motor operation
- Inspect heater core for leaks
- Maintenance Notes
- Ensure proper refrigerant levels for optimal performance
Warranty
- Basic
- Miles: 36,000 milesYears: 3 yearsCoverage: HVAC componentsTerms: From original purchase date
- Powertrain
- Miles: 70,000 milesYears: 5 yearsCoverage: Compressor and clutchTerms: From original purchase date
- Corrosion
- Miles: 70,000 milesYears: 5 yearsCoverage: Perforation of refrigerant linesTerms: From original purchase date
- Emissions
- Miles: 98,000 milesYears: 7 yearsCoverage: Evaporator and condenserTerms: From original purchase date
Production Details
- Manufacturer
- Honda Motor Co., Ltd.
- Manufacturing Process
-
- CNC machining
- Robot welding
- Manual assembly
- Quality testing
- Quality Control
- inspection: Visual and functional testingCertifications: ISO 9001 compliantTesting Procedures: Leak testing, Performance testing, Durability testing
- Sustainability Practices
- Recyclable materials used where possible
- Production Metrics
- Annual Production: Approx. 5,000 unitsAssembly Time: 8 hours per unitWarranty Claim Rate: Less than 2%
Service Information for HVAC Service
Maintenance and service requirements specific to this component
- Inspect cabin air filter
- Check refrigerant level
- Test blower motor operation
- Inspect for refrigerant leaks
- Check heater core for leaks
Recommended service interval for optimal performance
- Replace cabin air filter
- Inspect and adjust blower motor belt
- Check HVAC control switches
- Inspect temperature blend door operation
- Test AC performance
Annual maintenance recommended
- Recharge refrigerant if necessary
- Inspect and replace O-rings and seals
- Check compressor clutch operation
- Inspect condenser and evaporator fins
- Test heater core for leaks
- Inspect wiring and connections
Major service interval for HVAC system
Frequently Asked Questions
Find answers to common questions about torque specifications
Q1 What is the refrigerant type and capacity for the 1990-2005 Acura NSX HVAC system?
What is the refrigerant type and capacity for the 1990-2005 Acura NSX HVAC system?
The 1990-2005 Acura NSX HVAC system uses R-134a refrigerant. The total system capacity is approximately 700-750 grams (24.7-26.5 ounces). Always refer to the under-hood label for exact specifications.
Q2 What is the recommended interval for HVAC system maintenance on the Acura NSX?
What is the recommended interval for HVAC system maintenance on the Acura NSX?
The HVAC system should be inspected annually, including checking refrigerant levels, compressor operation, and cabin air filter replacement. The cabin air filter should be replaced every 15,000-30,000 miles or as needed based on driving conditions.
Q3 How do I diagnose a weak airflow issue in the Acura NSX HVAC system?
How do I diagnose a weak airflow issue in the Acura NSX HVAC system?
Weak airflow can result from a clogged cabin air filter, a malfunctioning blower motor, or obstructed air ducts. Inspect and replace the cabin air filter if necessary. Check the blower motor for proper operation and ensure air ducts are free of debris.
Q4 What is the procedure for recharging the AC system in the Acura NSX?
What is the procedure for recharging the AC system in the Acura NSX?
To recharge the AC system, first evacuate the system using a vacuum pump to remove moisture and air. Then, recharge with the specified amount of R-134a refrigerant (700-750 grams). Use a manifold gauge set to monitor pressure levels and ensure proper operation.
Q5 What are the common signs of a failing AC compressor in the Acura NSX?
What are the common signs of a failing AC compressor in the Acura NSX?
Common signs include unusual noises (e.g., grinding or squealing), reduced cooling performance, and visible refrigerant leaks. If the compressor clutch fails to engage, it may indicate an electrical issue or low refrigerant levels.
Factory Service Resources
Access official service manuals, technical documents, and repair guides. These resources provide detailed procedures, specifications, and diagrams directly from the manufacturer.
Acura NSX HVAC System Service Manual
Coming SoonOfficial service manual detailing HVAC system components, diagnostics, and repair procedures for the 1990-2005 Acura NSX.
R-134a Refrigerant Handling Guide
Coming SoonComprehensive guide on safe handling, charging, and disposal of R-134a refrigerant, specific to the Acura NSX HVAC system.
Cabin Air Filter Replacement Tutorial
Coming SoonStep-by-step instructions for replacing the cabin air filter in the 1990-2005 Acura NSX, including tools required and safety precautions.
AC Compressor Troubleshooting Guide
Coming SoonDetailed troubleshooting steps for diagnosing and repairing AC compressor issues in the Acura NSX.
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Technical Information
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