The product shown on this page is a Wire Harness applied to vehicle mounted air conditioners. Considering the working environment of the Wiring Harness, when designing the shape of the Cable Harness, our engineers specially designed it into a smaller shape for easy installation. Not only that, the cable harness also has excellent stability, wear resistance, high temperature resistance, high pressure resistance, and stable transmission rate, which has been praised by customers.

The on-board air conditioner is an air conditioning system composed of compressor, condenser, throttling element, evaporator, fan and necessary control components, which is used to regulate the temperature and humidity in the vehicle and provide a comfortable environment for passengers.

When the compressor is working, the compressor sucks in the low temperature and low pressure gaseous refrigerant from the evaporator. After compression, the temperature and pressure of the refrigerant increase and the refrigerant is sent to the condenser. In the condenser, the high-temperature and high-pressure gaseous refrigerant transfers the heat to the outside air passing through the condenser and becomes liquid. When the liquid refrigerant flows through the throttling device, its temperature and pressure decrease and enter the evaporator. In the evaporator, the low temperature and low pressure liquid refrigerant absorbs the heat of the air in the vehicle passing through the evaporator and evaporates into a gas. The gas is sucked into the compressor for the next cycle. In this way, through the circulation of refrigerant in the system, the heat of the air inside the vehicle is continuously absorbed and discharged into the air outside the vehicle, so that the temperature of the air inside the vehicle gradually decreases.

Air Conditioner Wiring Harness Specification

High-Reliability Custom HVAC Cable Solutions for Leading Brands

When it comes to HVAC systems, wiring stability directly determines the long-term performance, safety, and energy efficiency of the entire air conditioner. Uniwell specializes in producing custom wire harness for low speed vehicles as well as custom Air Conditioner Wiring Harnesses engineered for durability, accurate signal transmission, and high-temperature operation—ideal for residential AC, commercial HVAC units, heat pumps, industrial chillers, and customized cooling systems.

With over 15 years of production experience, advanced molding & processing technology, and strict reliability verification, we help global HVAC manufacturers achieve stable performance and long service life in every electrical connection.

Why Choose Uniwell Air Conditioner Wiring Harness?

Built for High-Temperature HVAC Environments

Air conditioners operate in conditions involving continuous start-stop cycles, compressor vibration, temperature fluctuations, humidity, and condensation.
Our wire harnesses use heat-resistant, moisture-proof, flame-retardant materials, ensuring long-term reliability in demanding environments.

Available materials include:

• PVC / SR-PVC

• TPE / TPR

• EPDM

• PE, LDPE, HDPE

• XLPE

• PU / Nylon blend

• FEP / PTFE / ETFE
  And more depending on temperature, humidity, insulation, and bending requirements.

Customized to Your AC System Requirements

We support full customization based on your drawing, sample, or functional requirement:

• Wire gauge & insulation selection

• Connector/terminal matching for compressors, sensors, fans, PCBA, thermostats

• Cable routing & bundling optimization

• Temperature, humidity, flame-retardant, waterproof level planning

• High-flexibility designs for vibration & movement

• Overmolded connectors for high moisture areas

Our engineering team provides material analysis + drawing optimization + sampling + mass production—ensuring every harness perfectly fits your AC model.

Reliability You Can Trust in Every HVAC Application

● Reliability of Raw Materials

All conductors, insulation, and electronic components undergo full TQC verification to ensure electrical safety and durability.

● Reliability of Connector & Terminal Matching

We analyze failure modes and select terminals/connectors suitable for compressors, motors, control boards, sensors, and outdoor units.

● Reliability of Electrical System Design

Optimized routing, reduced circuit complexity, noise reduction, and stable signal transmission for temperature/humidity sensors and control modules.

● Reliability of Processing Technology

Precision tooling, stable molding, and process-control ensure dimensional accuracy, strong crimps, and consistent mass-production quality.

Typical Applications

Our Air Conditioner Wiring Harnesses are widely used in:

• Residential air conditioners

• Commercial HVAC units

• Heat pumps

• Window & portable ACs

• Industrial chillers

• Ceiling & cassette air conditioners

• Outdoor compressor units

• AC control panels

• Smart HVAC systems

OEM / ODM Manufacturing Support

Uniwell provides a complete solution for HVAC manufacturers:

• Custom harness design

• Component sourcing and validation

• Prototype development

• Mass production with strict quality control

• Full traceability and testing

• Cost-optimized engineering for large-scale projects

Whether you need a single model harness or a complete HVAC wiring system, we are ready to support your project.

Partner With a Reliable Wire Harness Manufacturer

If you are looking for stable, safe, and high-performance Air Conditioner Wiring Harnesses, Uniwell delivers engineering-driven solutions, competitive pricing, and dependable lead times for global HVAC brands.