How to make your commercial refrigeration run quieter

Commercial refrigeration is the unsung hero of many food and drink businesses. It keeps your products fresh and your operations running smoothly. But there’s a catch: it can be noisy. A loud commercial fridge or freezer isn’t just annoying; it can impact your business in ways you might not expect.

Imagine a café where the hum of the freezer drowns out the gentle chatter of customers. Or a shop where staff members struggle to hear each other over the constant drone of refrigeration units. These scenarios aren’t just inconvenient—they can affect your bottom line.

Quiet commercial refrigeration creates a more pleasant environment for both customers and staff. In a competitive market, these small details can make a big difference in customer satisfaction and employee morale.

Understanding refrigeration noise

Before we dive into solutions, let’s get to grips with the problem. Refrigeration noise doesn’t come from a single source. It’s a medley of sounds produced by various components working together.

The compressor is often the main culprit. It’s the heart of your commercial refrigeration, pumping coolant through the system. As it works, it vibrates, creating a low hum. Fans are another common noise source. They circulate cold air inside the unit and help cool the condenser, producing a whirring sound.

But how loud is too loud? A typical commercial refrigeration unit operates at around 40 to 50 decibels—about as loud as a quiet library. However, older or poorly maintained units can exceed 70 decibels, which is closer to the noise level of a busy street. At this level, the sound becomes a nuisance; it can interfere with normal conversation and concentration.

Regular maintenance tips

Keeping your commercial refrigeration in top shape is the first step to reducing noise. Regular maintenance not only keeps your units running efficiently but can also significantly cut down on unwanted sounds.

Start with the condenser coils. These are the squiggly tubes usually found at the back or bottom of your units. They release heat from the refrigerant, but when they’re clogged with dust and debris, they force the unit to work harder—and louder. Clean them every three months with a coil brush or vacuum cleaner.

Next, turn your attention to the fan motors. A well-lubricated fan runs smoothly and quietly. Apply a few drops of refrigerator oil to the fan motors annually. Be sure to consult the manual for specific instructions, as some modern units have sealed bearings that don’t require lubrication.

Don’t overlook the door seals. A damaged or loose seal lets cold air escape, making your refrigeration work overtime. Check the seals regularly for cracks or gaps. If you can easily slide a piece of paper between the seal and the unit’s body, it’s time for a replacement.

Lastly, give your unit a once-over for any loose components. Screws, panels and other parts can work themselves loose over time, causing rattles and vibrations. A quick tightening can often solve these issues.

Strategic placement

Where you place your unit can have a surprising impact on noise levels. The ideal location isn’t just about convenience; it’s about creating an environment where sound is less likely to travel or be amplified.

Avoid placing units directly against walls or in corners. These surfaces can reflect and amplify sound.

Instead, leave a small gap between the unit and the wall. This not only reduces noise but also improves ventilation, helping your unit run more efficiently.

Consider the flooring, too. Hard surfaces like tile or concrete can make vibrations more noticeable. Placing rubber mats or pads under the feet of your units can absorb some of this vibration, reducing overall noise.

If possible, house your unit in a separate area away from customer spaces. A dedicated cold storage room can contain noise and keep it from disturbing your clientele. If this isn’t feasible, consider using sound-absorbing materials in the surrounding area. Acoustic panels or even soft furnishings can help dampen noise.

Remember, proper ventilation is crucial. While it might be tempting to enclose your unit to muffle the sound, this can lead to overheating and increased noise as the unit works harder to stay cool. Ensure there’s adequate airflow around your unit, particularly at the back, where the compressor and condenser are located.

Equipment upgrades for quieter operation

Sometimes, upgrading your commercial refrigeration equipment is the best solution. Modern commercial refrigeration units are designed with noise reduction in mind, often operating at much lower decibel levels than their older counterparts.

When considering an upgrade, look for energy-efficient models. These units often use variable-speed compressors, which can adjust their output based on cooling needs. This saves energy and reduces noise, as the compressor isn’t constantly running at full capacity.

While there’s much you can do yourself, sometimes it’s best to call in the experts. A professional refrigeration technician can identify issues you might have missed.

Consider calling a professional if you’ve tried DIY solutions without success or if your freezer is making unusual noises like grinding or loud clicking. These could indicate more severe problems that require expert attention.

Choosing quiet units

If you’re in the market for new units, noise should be a key consideration. Look for models that advertise low-noise operation, but don’t just take the manufacturer’s word for it.

Check the decibel rating of any unit you’re considering. Even a tiny reduction in decibels can make a big difference. A unit rated at 40 decibels will be noticeably quieter than one rated at 50 decibels.

Pay attention to the compressor type. Inverter compressors, which can operate at variable speeds, are generally quieter than traditional single-speed compressors. They’re also more energy-efficient, which is a bonus.

Don’t forget to consider the fan design. Look for models with large, slow-spinning fans. These can move the same amount of air as smaller, faster fans but with less noise.

How can Fridgesmart help?

Quiet commercial refrigeration can be an asset to your business. Following these strategies can significantly reduce the noise levels of your units.

The benefits extend beyond a more pleasant environment. Quieter units often run more efficiently, which can lead to energy savings. They can also extend the lifespan of your equipment, reducing the need for frequent replacements.

So, if you’re ready to make your commercial units whisper-quiet, give us a call. Whether you’re looking to upgrade your existing units or invest in new, quieter models, we can help. Check out our range of low-noise commercial refrigeration units, or get in touch to learn more.