Blog & Resources

Frequently Asked Questions & Popular Topics

We install, maintain and repair commercial refrigeration, air conditioning and ice machine equipment.

What temperature should my refrigeration system be?

  • General storage cool rooms and cabinets should be between 1°C and 4°C
  • General storage freezer rooms and cabinets should be between -21°C and -16°C
  • Fruit and veg storage cool rooms and cabinets should be between 4°C and 6°C
  • Glycol beer chiller tanks should be between -2.8°C and -2.2°C

Do I need a regular maintenance service?

Regular servicing of your equipment may be required to maintain warranty. In addition, failure to keep records of a regular maintenance program may see manufacturers void warranty on certain equipment. Any breakdowns associated with a lack of equipment maintenance are sure to void warranty. So whilst regular servicing of your equipment is not essential, it is highly recommended

Most people accept that they need to service their car regularly to keep it in good condition and prevent it from breaking down. In the same way, refrigeration and air conditioning systems benefit from regular maintenance to keep them operating efficently and prevent breakdowns. Your car sees perhaps 2 to 4 hours use per day on average and costs you money, whereas a refrigeration system works 24 hours a day all year and helps you make money.

Poorly maintained refrigeration and air conditioning systems are less efficent and cost more to run too. Electricity prices aren’t going down, so why wouln’t you want to keep it maintained and running efficently to lower running costs?

Over the long term, refrigeration and air conditioning maintenance shows it’s value in reduced operating and repair costs. So whilst maintenance isn’t necessary, it’s a very good idea! 

How often should I get my systems serviced?

Depending on the site and type of equipment, we recommend a maintenance check at least once a year. Usually we would perform an annual maintenance before summer.

  • Air conditioning filter clean – quarterly (4 per year)
  • Air conditioning maintenance – bi-annually (2 per year)
  • Refrigeration maintenance – bi-annually (2 per year)
  • Glycol beer system maintenance – annually (1 per year)
  • Ice machine clean and maintenance – bi-annually (2 per year)

Mercury can provide maintenance services on an ad-hoc basis upon request, or we can schedule a regular maintenance program tailored to your needs. Call us on 02 4947 7193 to learn more.

Do you have energy efficient refrigeration and air conditioning products?

Absolutely! Our team is commited to providing environmentally responsible, real world solutions that benefit your business bottom line.

Our energy efficient refrigeration systems use the latest VSD (variable speed drive) technology. VSD units deliver ultra quiet operation and studies show that they can provide a return on investment of under 3 years. They pay for themselves in lower running costs.

Our energy efficient air conditioning systems use the latest inverter and VRV/VRF with heat recovery technology. Economisers fitted to package units can further reduce running costs.

Talk to us todsy about your needs and let us design an energy efficient package that is not only green, but saves money too!

Can you make my existing systems more efficient?

Yes we can. Call us for an assessment of your current plant and equipment. With new technologies constantly evolving, current refrigeration and air conditioning systems can often be upgraded to take advantage of the latest industry innovations. Call us on 02 4947 7193 to learn more.

What types of equipment do you work on?

We provide a comprehensive range of services to nearly all commercial refrigeration and air conditioning equipment. With over 30 years experience in the industry, there isn’t much we haven’t worked on.


  • Variable speed drive (VSD) refrigeration systems
  • Cool rooms
  • Freezer rooms
  • Refrigerated cabinets
  • Glass chillers
  • Ice machines
  • Glycol/temprite beer systems

Air Conditioning:

  • Air curtains
  • Split systems
  • Ducted systems
  • Package systems
  • Multi-head systems
  • VRV/VRF systems

Beer Plumbing:

  • Beer fonts and beer taps
  • Keg room fit outs
  • Dosatron line cleaning systems

Catering Equipment:

  • Commercial glass washers
  • Commercial dish washers
  • Bain-maries
  • Hot and cold displays

What areas do you cover?

We provide refrigeration and air conditioning services to these areas:

  • Central Coast
  • Lake Macquarie 
  • Newcastle
  • Port Stephens
  • Lower Hunter

What warranty do you provide?

We offer a 12-month warranty on all completed work. Note that if equipment fails within that period and is not attributable to our previous work, then repair fees will apply. Note that failure to perform regular maintenance on equipment may also void warranty.