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Your cooling equipment is primary purpose is to cool, so why focus on performance?

  1. To reduce the electricity, water and chemical costs! When a cooling unit is built, it has been designed to cool at a specified rate, sometimes referred to as maximum heat rejection or design duty. Your brand-new cooling unit has been installed in your factory – cool store – building.

The first day the cooling unit is turned on will be its most effective day for it to cool and perform. On day one the brand-new cooling unit is at 100% cooling performance. It is also at 100% power consumption efficiency.

What happens after day one?

The cooling performance starts to drop off slowly but surely. Why?

Cooling tower fill pack must be in a good condition to effectively cool to 100% capacity.

Dirty – scaled – fowled – damaged – falling apart is costing the owner a fortune in excessive electricity costs.

Blocked water distribution nozzles reduce cooling performance significantly – No water cover = No cooling.

The internal tubes of fluid coolers must be cleaned to ensure 100% cooling performance

Cooling equipment has some standard components

  • Heat transfer medium (coil or fill pack)
  • A fan to move air over the heat transfer medium (coil or fill pack)
  • Water distribution system to increase the heat rejection, increase the cooling efficiency & distribute water over the heat transfer medium (coil or fill pack)

Cooling performance is decreased by the following factors.  

  • Dirt – dust – scale
  • Bacteria – biofilm – slime – mould
  • Corrosion – erosion
  • Pollution – chemical attack
  • Wear – tear – damage – faults
  • Mechanical faults – electrical faults

From day one, the operation of cooling equipment is put into extreme stress by all the above factors.

Without maintenance, the cooling performance decreases.


Dirty coils cause a significant drop in

the cooling performance. Huge increase in electricity costs.

Clean coils give the owner 100% cooling performance.

Save money on electricity.


What happens when the cooling performance decreases?    

  • The electrical power bill cost goes up.
  • The cooling equipment has to run longer and harder to do the work that was easy on day one installation.
  • Wear and tear increase so the cooling equipment life expectancy decreases too quickly.
  • Bacteria, biofilm, slime and mould causes corrosion, causing life expectancy to decrease.
  • The cooling units do not cool the equipment, rooms, or buildings they were designed to cool when at 100% performance.
  • Refrigerant gas leaks due to excessive heat
  • Chiller failure – high temperature alarms – high temperature complaints from people – produce damage – plant shutdown.

Poor cooling equipment performance costs you MONEY

The hidden costs

  • Excessive power bills.
  • Unhappy clients in retail facilities.
  • Unhappy tenants in buildings.
  • Equipment failure way to short of the expected life span.
  • Produce spoilage and poor shelf life.
  • Water and chemical leaks into the environment.
  • Excessive parts replacement cost.
  • Increased chemical costs.
  • Increased water usage costs.
  • Cost to re-gas coils.

Maintenance and cleaning are critical to ensure cooling equipment runs as close as possible to the meet the 100% performance mark.    Cooling equipment refers to cooling towers, fan coil unit, penthouse unit, evaporators, condensers, fluid coolers, alcove units, air handling units, hybrid coolers and air cooled units.