22nd JUNE 2026

Plastics Automation

How to Prevent Cooling System Downtime During Heatwaves

How to Prevent Cooling System Downtime During Heatwaves

Cooling system downtime becomes a major risk as temperatures rise across the UK and Ireland, placing cooling systems under some of the most demanding operating conditions of the year. For plastics manufacturers, maintaining reliable and consistent process cooling during warmer months is essential to protecting product quality, avoiding costly downtime and controlling energy consumption.

In many cases, cooling systems operate reliably throughout much of the year without issue, but summer conditions can quickly expose weaknesses within the system. Higher ambient temperatures place additional pressure on chillers, dry coolers, pumps and temperature control equipment, often at the exact time production demands are also increasing.

For processors working within injection moulding, extrusion, blow moulding and other plastics manufacturing environments, even a short period of cooling system downtime can have a significant impact across the entire production process.

At Summit Process Cooling, we understand the importance of stable and efficient cooling during peak summer conditions. Through our long-standing partnership with Frigel, cooling technologies are supplied, installed and supported across plastics manufacturing facilities throughout the UK and Ireland, helping processors reduce cooling system downtime and maintain reliable operation all year round.

What Causes Cooling System Downtime During Heatwaves?

During periods of high ambient temperature, cooling systems are required to work harder to maintain the same process conditions. If systems have not been properly checked or maintained before summer, this can lead to a range of operational issues, including:

  • Reduced cooling capacity
  • Increased energy consumption
  • Higher operating pressures
  • Alarms and unexpected shutdowns
  • Reduced process stability
  • Inconsistent product quality
  • Increased wear on critical components

In many cases, cooling equipment may continue operating, but at a significantly reduced level of efficiency. Compressors can remain under higher load for longer periods, fans may struggle to reject heat effectively and contaminated heat exchangers can restrict performance exactly when maximum efficiency is required.

These issues not only increase operational costs, but can also increase the likelihood of cooling system downtime during the busiest production periods of the year.

How Preventive Maintenance Reduces Cooling System Downtime

A preventive inspection before the warm season allows potential issues to be identified early, before they develop into production-stopping failures during summer.

Many cooling-related problems can be traced back to relatively simple causes, including dirty condensers, blocked filters, insufficient airflow, poor water quality or scaling within hydraulic circuits. While these issues may appear minor during colder months, summer operating conditions can magnify their impact considerably.

Preventive maintenance helps reduce cooling system downtime by ensuring the system is prepared to safely manage peak thermal loads while maintaining energy-efficient operation.

Key Areas to Check Before Summer

• Heat Exchangers and Condensers: Clean heat exchangers are essential for effective heat transfer. Dust, dirt and debris accumulation can significantly reduce system efficiency and cooling performance. Inspecting and cleaning condensers and heat exchangers before summer helps maintain nominal operating capacity while reducing unnecessary strain on compressors and fans.

Hydraulic Circuits and Water Quality: Water quality plays a critical role in long-term cooling system performance. Scaling, fouling and contamination within the hydraulic circuit can reduce circulation efficiency and heat transfer performance. Checking water condition, flow rates and circulation performance before peak summer demand can help prevent avoidable performance losses and component wear.

• Ventilation and Airflow: Proper ventilation around cooling equipment is often overlooked, particularly in busy production environments where surrounding layouts may change over time. Restricted airflow, blocked ventilation paths or insufficient clearance around chillers and dry coolers can dramatically reduce cooling efficiency during periods of high ambient temperature. Verifying airflow and ensuring ventilation components are operating correctly is essential for stable summer performance.

• General Functional Inspection: A full functional inspection allows engineers to identify any signs of wear, abnormal operation or component stress before issues escalate. This may include checking pumps, electrical components, control systems, sensors, operating pressures and overall system stability under load. Preventive maintenance not only helps reduce the risk of breakdowns, but also provides an opportunity to plan any required interventions in a controlled and scheduled manner, avoiding emergency downtime during critical production periods.

Supporting Plastics Processors Across the UK and Ireland

Summit Process Cooling supllies and installs the complete Frigel process cooling range throughout the UK and Ireland, helping plastics manufacturers improve reliability, reduce energy consumption and maintain stable production performance.

From standalone chillers and temperature control units through to fully integrated cooling systems and energy-efficient solutions such as free cooling and Frigel DYNAMICO, the focus remains on helping manufacturers improve reliability, reduce energy consumption and maintain stable production performance.

Preparing for Peak Summer Demand

Summer operating conditions place additional demands on every cooling system. Preparing early helps reduce risk, improve reliability and maintain production continuity when cooling performance matters most.

Summit Systems are available to support plastics processors with:

By taking a proactive approach before temperatures rise, manufacturers can reduce the likelihood of unexpected downtime and ensure their cooling systems continue operating at peak performance throughout the summer season.

Frigel has been supporting plastics manufacturers worldwide for more than 50 years, specialising in intelligent process cooling technologies designed to improve efficiency, reliability and production performance. Across the UK and Ireland, Summit Systems works closely with Frigel to supply, install and support the complete Frigel range for plastics processors, from standalone chillers and temperature control units through to fully integrated cooling systems and advanced technologies such as Frigel DYNAMICO. Together, Frigel and Summit Systems help manufacturers reduce energy consumption, improve process stability and minimise cooling system downtime across a wide range of plastics processing applications.

Speak to the experts today

Call us

+44(0)1827 265 800

General Enquiries

hello@summitsystems.co.uk
Contact Us
Summit Systems needs the contact information you provide to us to contact you about our products and services. You may unsubscribe from these communications at any time. For information on how to unsubscribe, as well as our privacy practices and commitment to protecting your privacy, please review our Privacy Policy.