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In the modern logistics and transportation industry, split-type semi-trailer air conditioners have become essential equipment for driver comfort and transport efficiency. Especially in hot summers or cold winters, efficient air conditioning not only directly impacts the driving experience but also the safety and efficiency of cargo transport. However, long-term improper use or lack of system maintenance can easily lead to degraded air conditioner performance, resulting in problems such as insufficient cooling or heating, odor, and increased noise. This article will provide a comprehensive explanation of split-type semi-trailer air conditioner maintenance methods to help you maintain efficient operation and extend its service life.

1. Basic Components of a Split-Type Semi-Trailer Air Conditioner

Before delving into maintenance guidelines, it's essential to understand the basic components of a split-type semi-trailer air conditioner. A split-type semi-trailer air conditioner primarily consists of the following components:

Evaporator: Located inside the cab, it absorbs heat to cool the air.

Condenser: Located outside the vehicle, it dissipates heat and returns the refrigerant to a liquid state.

Compressor: The core component of the air conditioning system, compressing the refrigerant for circulation.

Refrigerant Piping: Connects the compressor, evaporator, and condenser to ensure refrigerant circulation. Control system: Includes a temperature control panel, air speed adjustment, and mode switching for driver operation.

Blower and air duct: Evenly distributes cooling or heating air into the cab, enhancing comfort.

Understanding the functions of these components allows for targeted maintenance and servicing.

2. Daily Maintenance Tips for Split-Type Semi-Trailer Air Conditioners

2.1 Regularly Clean the Air Filter

The air filter is a crucial barrier that prevents dust and impurities from entering the air conditioning system. A clogged filter reduces air flow, reducing cooling or heating efficiency and increasing compressor load. Recommendations:

Clean the air filter every 5,000 kilometers or every three months.

If driving in dusty areas, the cleaning interval may be shortened.

When cleaning, use a clean brush or compressed air to ensure the filter is intact.

2.2 Check the Refrigerant Level

Refrigerant is the key medium for cooling and heating in air conditioners. Insufficient fluid level can result in poor cooling performance and even damage the compressor. Maintenance Recommendations:

Check the refrigerant pressure regularly (every six months or based on frequency of use).

Add refrigerant promptly if cooling performance decreases significantly.

When adding refrigerant, select the model that matches the air conditioning system to avoid mixing.

2.3 Clean the evaporator and condenser regularly.

Dust, oil, and insect debris can accumulate on the evaporator and condenser over time, affecting heat exchange efficiency. Maintenance Methods:

Clean the evaporator and condenser at least once a year.

When cleaning the evaporator, use a professional air conditioning cleaner, taking care to prevent liquid from entering the electrical components.

When cleaning the condenser, be careful not to bend the fins to ensure effective heat dissipation.

2.4 Check the compressor and piping.

The compressor is the heart of the air conditioning system, and its proper operation directly affects the performance of the entire vehicle's air conditioning system. Maintenance Recommendations:

Check the compressor's operating noise regularly and repair any abnormalities promptly.

Inspect the pipe connections and joints for signs of leaks.

Keep the pipes dry to prevent refrigerant leaks.

2.5 Keep the air ducts clear.

Dust or foreign matter in the air ducts can affect air flow, reducing air conditioning performance. Recommendations:

Regularly clean dust from the air ducts;

Check that the fan is running smoothly and for any unusual noises;

Keep the air outlet clear of obstructions.

3. Seasonal Maintenance Guide

Split-type semi-trailer air conditioners require different maintenance priorities in different seasons:

3.1 Summer Maintenance

Check for sufficient refrigerant;

Clean the evaporator and condenser to ensure effective heat dissipation;

Perform a short pre-cooling cycle before using the air conditioner to avoid compressor overload.

3.2 Winter Maintenance

Check the heating function to ensure the air conditioner can heat up quickly;

Prevent frost on the evaporator by reducing the refrigerant pressure appropriately;

Inspect the fan to ensure even warm air flow.

4. Common Faults and Solutions

Even with regular maintenance, air conditioners may still experience malfunctions. Common problems and corresponding solutions are as follows:

Poor Cooling Performance

Possible Cause: Insufficient refrigerant or clogged air filter.

Solution: Replenish refrigerant promptly and clean or replace the air filter to restore cooling performance.

Uneven Heating

Possible Cause: Clogged air duct or evaporator malfunction. Solution: Clean the air ducts to ensure proper air circulation; if necessary, repair or replace the evaporator.

Odor

Possible Cause: Mold growth in the evaporator or dust accumulation in the air ducts.

Solution: Use a professional air conditioner cleaner to clean the evaporator and regularly clean the air ducts to maintain fresh air.

Excessive Noise

Possible Cause: Compressor or fan malfunction.

Solution: Check the operation of the compressor and fan, and repair or replace components as necessary.

Water Dripping or Leaking

Possible Cause: Clogged drain pipe.

Solution: Clean the drain pipe to ensure smooth air flow from the air conditioner to prevent water from seeping into the cab.

By promptly identifying problems and implementing appropriate maintenance measures, you can effectively ensure the efficient operation of your split-type semi-trailer air conditioner and extend its service life.

5. The Importance of Choosing a High-Quality Split-Type Semi-Trailer Air Conditioner

In addition to routine maintenance, choosing a high-quality split-type semi-trailer air conditioner is equally crucial. High-quality air conditioners offer the following characteristics:

High cooling and heating efficiency, saving energy and electricity;

Strong durability, reducing maintenance frequency and costs;

A comprehensive range of accessories and comprehensive after-sales service.

Easy operation, adjustable air volume, and enhanced driving comfort.

For long-term logistics companies, high-quality air conditioners can significantly reduce maintenance costs and improve transportation efficiency.

6. Maintenance Tips

Regular Use: Even during non-hot seasons, it is recommended to power on the air conditioner once a month to maintain system lubrication.

Avoid direct sunlight: When parking, shade the cab as much as possible to reduce the load on the air conditioner.

Professional Inspection: Have a professional technician perform a comprehensive inspection annually to ensure system stability.

Maintenance Log: Record all cleaning, inspections, and refrigerant additions for easy tracking and analysis.

Split-type semi-trailer air conditioners are key equipment for driver comfort and transportation efficiency. Their efficient operation depends on scientific maintenance and care. From daily filter cleaning and refrigerant inspections to seasonal evaporator cleaning and compressor testing, every step must be carefully considered. By following this systematic maintenance guide, drivers and logistics companies can effectively extend the life of the air conditioner, maintain vehicle comfort, and reduce maintenance costs. A properly maintained split-type semi-trailer air conditioner not only enhances the driving experience but also provides reliable support for cargo transportation, making it an indispensable core piece of equipment in modern logistics operations.

As a professional split-type semi-trailer air conditioner supplier, we not only offer high-performance, energy-efficient, and durable air conditioners, but also provide comprehensive installation, maintenance, and troubleshooting services. Leveraging years of industry experience and technical expertise, we offer customized air conditioning solutions tailored to different vehicle types and operating environments, ensuring the long-term, efficient operation of each unit, providing a comfortable driving experience for the driver while also enhancing transportation efficiency and vehicle lifespan.

http://www.kmevehicleac.com
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