Subaru Subaru Impreza 1992-2000 HVAC Specifications
Explore detailed HVAC system specifications for the 1992-2000 Subaru Impreza. Learn about components, maintenance, and compatibility for repairs and upgrades.
Overview Specifications
This document provides detailed specifications and information about the HVAC (Heating, Ventilation, and Air Conditioning) system for the 1992-2000 Subaru Impreza. It is designed to assist owners, mechanics, and enthusiasts in understanding the system's components, functionality, and maintenance requirements. Use this guide to locate specific details, troubleshoot issues, and ensure optimal performance of the HVAC system. The document is organized into sections for easy navigation and includes a quick reference for key specifications.
How to Use
Use the search functionality to quickly locate specific terms or components within the document. Enter keywords related to the HVAC system, such as 'blower motor' or 'refrigerant type', to find relevant information efficiently.
Navigate through the document by using the section titles and subsections. Each section is labeled with a clear title and description to help you find the information you need. Use the quick reference table for an overview of key specifications.
Key Specifications
Refrigerant Type
R-134a
Blower Motor Voltage
12V
Compressor Type
Swash Plate
Heater Core Material
Aluminum/Brass
AC System Pressure
25-45 psi
Available Specifications
HVAC System Components
This section outlines the primary components of the HVAC system in the 1992-2000 Subaru Impreza. It includes details about the heater core, blower motor, air conditioning compressor, and other essential parts. Understanding these components is crucial for maintenance and troubleshooting.
HVAC System Components
This section outlines the primary components of the HVAC system in the 1992-2000 Subaru Impreza. It includes details about the heater core, blower motor, air conditioning compressor, and other essential parts. Understanding these components is crucial for maintenance and troubleshooting.
Heater Core
- Located inside the dashboard
- Transfers heat from engine coolant to the cabin
- Made of aluminum or brass for durability
- Prone to clogging or leaking over time
- Requires flushing for maintenance
- Replacement involves dashboard removal
Blower Motor
- Responsible for circulating air through the vents
- Located behind the glove compartment
- Controlled by the fan speed switch
- May fail due to worn-out bearings
- Easy to replace with basic tools
- Check fuse and resistor for related issues
Air Conditioning System
This section provides detailed information about the air conditioning system, including its components, refrigerant type, and common issues. Proper maintenance of the AC system ensures efficient cooling and longevity.
Air Conditioning System
This section provides detailed information about the air conditioning system, including its components, refrigerant type, and common issues. Proper maintenance of the AC system ensures efficient cooling and longevity.
Compressor
- Driven by the engine via a serpentine belt
- Compresses refrigerant for the cooling cycle
- Prone to failure due to leaks or wear
- Requires proper lubrication for longevity
- Replacement involves refrigerant recovery
- Check for clutch engagement issues
Refrigerant Type
- Uses R-134a refrigerant
- Environmentally friendly compared to R-12
- Requires specific pressure levels for optimal performance
- Overcharging can damage the system
- Check for leaks using UV dye
- Recharge as needed for cooling efficiency
Climate Control
This section covers the climate control features, including the controls, vents, and airflow management. Understanding these features helps in optimizing cabin comfort and air distribution.
Climate Control
This section covers the climate control features, including the controls, vents, and airflow management. Understanding these features helps in optimizing cabin comfort and air distribution.
Control Panel
- Includes temperature, fan speed, and mode controls
- Manual controls in base models
- Easy to operate with intuitive design
- Check for faulty switches or connections
- Clean regularly to prevent dust buildup
- Replace backlight bulbs if necessary
Vents and Airflow
- Adjustable vents for directional airflow
- Defrost vents for windshield clearing
- Floor vents for heating efficiency
- Check for blockages or debris
- Clean vents to maintain airflow
- Replace damaged vent components
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Component Specifications
Overview
- Type
- Manual and Automatic Climate Control
- Configuration
- Single-zone
- Platform
- Integrated with dashboard
- Material
- Plastic and metal components
- Location
- Front cabin center console
Dimensions
- Control Unit Width
- 8.5 inches (21.6 cm)
- Control Unit Height
- 3.2 inches (8.1 cm)
- Control Unit Depth
- 2.5 inches (6.4 cm)
- Blower Motor Diameter
- 6.3 inches (16 cm)
- Evaporator Core Length
- 12.6 inches (32 cm)
- Heater Core Length
- 10.2 inches (26 cm)
- Duct Diameter
- 2.8 inches (7.1 cm)
Materials
- Control Unit
- ABS plastic
- Blower Motor
- Steel and copper
- Evaporator Core
- Aluminum and copper
- Heater Core
- Aluminum and brass
- Ducting
- Reinforced rubber and plastic
Features
- Climate Control
-
- Manual temperature adjustment
- Air conditioning
- Heating
- Defrost function
- Air Distribution
-
- Face-level vents
- Floor vents
- Windshield defrost vents
- Fan Speeds
-
- 4-speed blower motor
- Variable fan control
- High-speed defrost mode
- Air Quality
-
- Cabin air filter
- Recirculation mode
- Fresh air intake
- Controls
-
- Rotary dials for temperature
- Slider controls for air distribution
- Push-button AC activation
Safety Features
- Overheat Protection
-
- Thermal fuse in heater core
- High-temperature cutoff switch
- Electrical Safety
-
- Fused blower motor circuit
- Insulated wiring harness
- System Monitoring
-
- Low refrigerant pressure switch
- AC compressor clutch protection
Comfort Features
- Temperature Control
-
- Gradual temperature adjustment
- Dual-zone temperature balancing
- Airflow Management
-
- Adjustable vent direction
- Even air distribution
- Noise Reduction
-
- Insulated ducting
- Quiet blower motor operation
- Defrosting
-
- Quick windshield defrost
- Rear window defogger integration
Accessories
- Filters
-
- Cabin air filter
- Pollen filter
- Charcoal filter
- Upgrades
-
- Aftermarket AC compressor
- High-performance blower motor
- Upgraded heater core
- Tools
-
- AC manifold gauge set
- Refrigerant recharge kit
- Blower motor removal tool
Maintenance
- Service interval
- Every 12 months or 12,000 miles
- Service Items
-
- Inspect and replace cabin air filter
- Check refrigerant levels
- Inspect blower motor operation
- Test AC compressor clutch
- Clean evaporator drain tube
- Maintenance Notes
- Use only R134a refrigerant, avoid overcharging
Warranty
- Basic Warranty
- Miles: 36,000Years: 3Coverage: Parts and labor
- Powertrain Warranty
- Miles: 60,000Years: 5Coverage: AC compressor and blower motor
- Corrosion Warranty
- Miles: UnlimitedYears: 5Coverage: Heater core and evaporator
- Emissions Warranty
- Miles: 50,000Years: 4Coverage: Refrigerant system components
Production Details
- Manufacturer
- Subaru Corporation
- Manufacturing Process
-
- Injection molding for plastic components
- Die-casting for metal parts
- Automated assembly line
- Quality Control
- Pressure Testing: AC system pressure testedLeak Detection: Refrigerant leak detectionFunctional Testing: Full system operational test
- Sustainability Practices
-
- Recyclable materials used
- Low-emission manufacturing
- Energy-efficient production
- Production Metrics
- Units Per Day: 500Defect Rate: 0.5%Energy Usage: 15 kWh per unit
Service Information for HVAC Service
Maintenance and service requirements specific to the HVAC system
- Inspect and replace cabin air filter
- Check refrigerant levels
- Test blower motor operation
- Inspect AC compressor clutch
- Clean evaporator drain tube
Ensure proper refrigerant type (R134a) is used
- Inspect and clean evaporator core
- Check heater core for leaks
- Test all HVAC controls
- Inspect ducting for cracks
- Verify defrost function
Use UV dye for leak detection if necessary
- Replace cabin air filter
- Recharge refrigerant system
- Inspect and replace blower motor if needed
- Test AC compressor performance
- Flush heater core if necessary
Perform full system diagnostics before major service
Frequently Asked Questions
Find answers to common questions about torque specifications
Q1 Is the HVAC system compatible with aftermarket parts for the 1992-2000 Subaru Impreza?
Is the HVAC system compatible with aftermarket parts for the 1992-2000 Subaru Impreza?
The HVAC system in the 1992-2000 Subaru Impreza is compatible with select aftermarket parts, but compatibility varies by model year and specific components. For example, blower motors, AC compressors, and heater cores from reputable brands like Denso or Four Seasons are often compatible. Always verify part numbers and specifications with the manufacturer or a trusted supplier to ensure proper fit and function.
Q2 What are the maintenance requirements for the HVAC system in a 1992-2000 Subaru Impreza?
What are the maintenance requirements for the HVAC system in a 1992-2000 Subaru Impreza?
Regular maintenance for the HVAC system includes inspecting and replacing the cabin air filter every 12,000-15,000 miles, checking refrigerant levels annually, and ensuring the blower motor and AC compressor are functioning properly. Additionally, inspect hoses and seals for leaks or wear. A professional inspection every 2-3 years is recommended to maintain optimal performance and prevent costly repairs.
Q3 How do I replace the cabin air filter in a 1992-2000 Subaru Impreza?
How do I replace the cabin air filter in a 1992-2000 Subaru Impreza?
To replace the cabin air filter, locate the filter housing behind the glove compartment. Open the glove box, remove the retaining clips, and carefully detach the housing cover. Slide out the old filter and insert the new one, ensuring it is oriented correctly. Reassemble the housing and glove box. This process typically takes 10-15 minutes and requires no special tools.
Q4 Why is my HVAC system blowing warm air instead of cold?
Why is my HVAC system blowing warm air instead of cold?
If your HVAC system is blowing warm air, it may be due to low refrigerant levels, a faulty AC compressor, or a clogged condenser. Start by checking refrigerant levels and topping off if necessary. Inspect the compressor for proper operation and ensure the condenser is clean and unobstructed. If issues persist, consult a professional for a thorough diagnosis.
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 system is free of debris and the cabin air filter is clean. Regularly check refrigerant levels and recharge as needed. Use the recirculation mode to improve cooling efficiency and reduce strain on the system. Additionally, park in shaded areas to minimize heat buildup and reduce the workload on the AC system.
Factory Service Resources
Access official service manuals, technical documents, and repair guides. These resources provide detailed procedures, specifications, and diagrams directly from the manufacturer.
1992-2000 Subaru Impreza HVAC Service Manual
Coming SoonThis manual provides detailed instructions for servicing and repairing the HVAC system, including diagrams, troubleshooting tips, and part specifications.
Subaru Technical Service Bulletin: HVAC System Updates
Coming SoonThis bulletin outlines common issues and updates for the HVAC system in 1992-2000 Subaru Impreza models, including recommended fixes and part replacements.
Subaru Impreza HVAC Parts Catalog
Coming SoonA comprehensive catalog of OEM and aftermarket HVAC parts for the 1992-2000 Subaru Impreza, including part numbers and compatibility details.
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Technical Information
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