Commercial Air Conditioning: Installation, Maintenance, and Repair


Introduction to Commercial Air Conditioning

Welcome to DD Cooling’s comprehensive guide on commercial air conditioning. Whether you are a business owner, Facility Manager, or someone interested in understanding the ins and outs, we are here to provide you with valuable information about installation, maintenance, and repair.

Commercial air conditioning plays a vital role in creating a comfortable and productive indoor environment for employees, customers, and visitors. These systems are designed to cool, dehumidify, and circulate air in larger spaces such as offices, retail stores, hospitals, hotels, and more.


Installation of Commercial Air Conditioning Systems

Assessment and Planning

An HVAC (Heating, Ventilation, and Air Conditioning) professional assesses the space, calculates cooling loads, and determines the appropriate system size and type for the specific needs of the building. Factors considered include building size, layout, insulation, number of occupants, and more.

System Selection

Based on the assessment, the HVAC professional recommends the most suitable type of commercial air conditioning system. Common types include rooftop units, split systems, and variable refrigerant flow (VRF) systems.

Ductwork and Air Distribution

Proper ductwork design is crucial for even cooling distribution. Ducts are sized, placed, and insulated to ensure efficient airflow and minimal energy loss.

Ready for Installation

Skilled technicians install the system components, including the condenser unit, evaporator coil, compressor, air handlers, and thermostats. Wiring, refrigerant lines, and drainage systems are also installed.


After installation, the system is thoroughly tested to ensure it operates correctly. This includes checking for proper refrigerant levels, airflow, thermostat calibration, and overall system performance.

Installation of Mitsubishi air conditioning units

Maintenance Best Practices

Regular maintenance is essential to keep your commercial air conditioning system running efficiently and prevent costly breakdowns. Here are some maintenance best practices:

  • Filter Cleaning/Replacement: Dirty filters restrict airflow, reducing efficiency and indoor air quality. Filters should be cleaned or replaced every 3-6 months.
  • Coil Cleaning: Dirty coils reduce cooling capacity and energy efficiency. Regular coil cleaning helps maintain optimal performance.
  • Condensate Drain Cleaning: Clogged condensate drains can lead to water damage and mould growth. Regular cleaning prevents blockages.
  • Belt and Motor Inspection: Check belts for wear and tension and inspect motors for proper operation and lubrication.
  • Electrical Component Inspection: Check wiring, connections, and controls for signs of wear or damage.
  • Thermostat Calibration: Ensure thermostats accurately control temperature and respond to settings.
Flowervision Cold Store air conditioning

Common Repairs and Troubleshooting

Even with proper maintenance, commercial air conditioning systems can experience issues over time. Common problems include:

  • Refrigerant Leaks: Low refrigerant levels can lead to reduced cooling capacity. Leaks should be repaired promptly.
  • Frozen Coils: Poor airflow or refrigerant issues can cause coils to freeze, reducing cooling efficiency.
  • Electrical Problems: Malfunctioning capacitors, relays, or wiring can cause the system to fail.
  • Compressor Issues: Compressor problems can result in inadequate cooling or complete system failure.
  • Airflow Problems: Ductwork issues or dirty filters can lead to uneven cooling and reduced airflow.
New Vehicle Wrap for DD Cooling

Importance of Professional Services

While some maintenance tasks can be performed by facility staff, it is crucial to have an experienced HVAC professional handle installation, major repairs, and complex maintenance. Professional technicians have the expertise, tools, and training to ensure the safe and efficient operation of commercial air conditioning systems.

Contact Us for Your Commercial HVAC Needs

If you need commercial air conditioning services, from installation to maintenance and repair, do not hesitate to contact us. Our team of skilled professionals provides top-notch HVAC solutions tailored to your business’s needs.

Remember, a well-maintained and properly functioning commercial air conditioning system contributes not only to the comfort of your building’s occupants but also to energy savings and overall operational efficiency.

Gym ventilation and air conditioning

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Testimonials Roger Coulston, Ribble Farm Fare

We buy fresh fruit and vegetables from farmers to supply the wholesale market and offer services to restaurants and schools by preparing the vegetables ahead of delivery. Therefore, efficient refrigeration is integral to our business model, and DD Cooling supports us with everything we need. They help us to save running costs year on year and provide an efficient service that we can rely on.

Roger Coulston, Ribble Farm Fare
Testimonials Austin Anderton, Brendan Anderton Butchers

Our business supplies the catering industry and we operate a central factory which distributes to customers directly, as well as two of our own retail shops in Longridge and Clitheroe. We pride ourselves on the quality of the meat we provide for customers and the service from DD Cooling is an integral part of our business offering. They have also allowed us to generate maximum efficiency and cost savings with the cooling of our produce and have provided design, building and maintenance of bespoke cold stores right the way through to improving and maintaining dated refrigeration equipment.

Austin Anderton, Brendan Anderton Butchers
Testimonials Trudy Webster, Dawn Dew Salads

We are a specialist salad crest grower and supply a range of grocers and supermarket operators. DD Cooling is 20 miles away but their personal service outweighs those we’ve experienced with other, closer suppliers. We know we get honest advice and have grown to know the teams which we love! DD Cooling has built specialist growing rooms for our delicate produce and maintains our on-site refrigeration.

Trudy Webster, Dawn Dew Salads
Testimonials The Flower Bowl

Here at the flower bowl, we have a state of the art co2 refrigeration system. This system is integral to our business, when there’s a fault with it many of the services we provide are unable to continue. Since the system was installed it has had various technical issues. After lots of back and forth, we decided to go out and see if another company would be able to help us diagnose and rectify these issues. Along came DD Cooling who came highly recommended. Over time they have been able to get the system operating fully and make it reliable, this hasn’t been an easy task. It has been time-consuming and I’m sure head-scratching at times. Now the system has been made reliable they continue to service and maintain the equipment to an excellent standard.

The Flower Bowl
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