Most Frequently Asked Questions About Chillers & Aircons

Here are some of the most asked questions. Read through these before you ask us the same question listed here. If not listed here, feel free to drop us a line and we will answer it for you.


Yes, or we can remanufacture it to the original manufacturer’s specifications. We also stock all makes and models of new compressors.

A gas compressor is a mechanical device that increases the pressure of a gas by reducing its volume. An air compressor is a specific type of gas compressor.

Compressors of different types are widely used in the cooling systems designed for the refrigeration or chilling of food, as well as “conditioning” the air in buildings.

A screw or rotary compressor is a type of gas compressor which is commonly used to replace piston compressors where large volumes of high pressure air are needed.

A hermetic compressor uses a one-piece welded steel casing that cannot be opened for repair, except by an expert. If it fails, it usually has to be replaced with an entire new unit.

A semi-hermetic compressor uses a large cast metal shell with gasketed covers that can be opened to replace motor and pump components.

Yes, or we can supply you with a new one. We stock all makes and models of chillers.

Yes. We design water cooled and air cooled chiller systems – complete with piping, pumps and cooling towers.

A single large chiller that serves multiple cooling needs.

A refrigeration system used in a commercial or industrial facility - like a perishable food cold room or in a manufacturing plant.

The working fluid in a refrigeration system, such as ammonia or chilled water.

A wide variety - from small "plug-in" vending machines, display cabinets and food service coolers to large supermarket refrigeration systems.

The controlled cooling of products, mechanisms and factory machinery in many different industries.

A wide range of industries – including Plastics, Metal working, Chemical processing, Pharmaceuticals, Food and Beverage processing and Paper processing

A single large chiller that serves multiple cooling needs.

A series of compact chillers each serving a separate application or machine.

Water cooled, Air cooled and Evaporatively cooled.

A mechanical chiller is powered by an electric motor, steam turbine or gas turbine.

Reciprocating compression, centrifugal compression and screw driven compression.

Evaporator, compressor, condenser, expansion valve.

Yes, we supply all types and specialise in CAREL programmable controllers.

Yes. We design control systems according to our clients’ requirements using the latest technology. We specialise in CAREL programmable controls.

Yes, we design and draw complete wiring diagrams.

Yes, we build electrical panels for any application, according to our clients’ specifications. We can incorporate variable speed drives, soft starters, direct online starters, star delta starters, relays, timers, UPS, voltage and ampere indicators.

Yes. We design air-conditioning complete with ducting, dust air handling units, split systems, VRV systems, VAV systems or Package systems.

Any form of technology that modifies the condition of air - such as heating, cooling, dehumidifying, cleaning, ventilation or air movement.

The creation of an indoor environment that remains relatively constant in a range preferred by humans, in spite of changes in outside weather conditions or in internal heat loads.

The provision of a suitable environment for a commercial or industrial process being carried out, regardless of internal heat loads and external weather conditions.
Wind speed increases significantly at higher altitude. This makes natural ventilation impractical for very tall buildings. Airconditioning plays a vital role in now being able to cool these rooms down.
It filters the air to high levels to reduce infection risk. It also controls the humidity to limit patient dehydration.