What Does Ambient Temperature Mean in Commercial Refrigeration and Open Display?

When choosing commercial refrigeration or open display units for your café, restaurant, or supermarket, understanding ambient temperature is essential. Ambient temperature refers to the surrounding air temperature where the refrigeration unit operates. This factor has a major impact on the performance, efficiency, and lifespan of your commercial fridge or display.

Why Ambient Temperature Matters

Commercial refrigeration units are designed to work optimally within specific ambient temperature ranges. If the ambient temperature is higher than the unit’s rating, the refrigeration system has to work harder, leading to increased energy consumption and potential wear on the motor.

This is especially important when selecting equipment because the summer weather temperature is often much higher than winter — so you should always base your choice on the maximum expected summer temperatures, not the cooler winter averages.

Things to Consider About Ambient Temperature

• Store Environment When Open: The temperature inside your café, restaurant, or supermarket during business hours can be significantly warmer due to people, cooking, lighting, and open doors.

• Store Environment When Closed: When the store is closed, the ambient temperature might drop, but refrigeration units still need to maintain safe temperatures inside.

• Storage Location: If the refrigeration unit is stored or installed in a non-air-conditioned area or outdoors, ambient temperatures may be even higher.

The Impact of Max Ambient Temperature on Refrigeration Units

If you regularly run a refrigeration unit at or above its maximum ambient temperature rating, the motor works harder and may have a shorter lifespan. This can also lead to higher electricity bills and more frequent maintenance or repairs.

Example:

Say you have a café in Penrith, NSW. In winter, the max ambient temperature during the day is around 19°C and at night it can drop to 0°C. However, in summer, the minimum temperature can be 18°C and the maximum can soar to 43°C.

For this location, it’s best to choose commercial refrigeration that can operate efficiently at or above 43°C ambient temperature. This ensures your equipment won’t overwork during the hottest days, maintaining performance and longevity.

Final Tips for Choosing the Right Commercial Refrigeration

• Always check the unit’s maximum ambient temperature rating before purchase.

• Base your decision on summer max temperatures, not just average or winter temps.

• Consider the specific environment of your store during open and closed hours.

• Opt for refrigeration units designed for high ambient temperatures if you’re in a hot climate.

Choosing the right commercial refrigeration unit with proper ambient temperature tolerance ensures your food and products stay fresh, your energy costs stay manageable, and your equipment lasts longer.