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MCM20 Operating Instructions

On the control panel of the unit are 2 buttons, and 2 lights. The buttons are marked and they operate the fans, and the cooling cycle. One light indicates the power is on to the machine and the other, when the condensate tank is full of water.


Check that the power light is ON. Switch the air conditioning unit on by first turning on the fans. Then begin cooling by switching on the cooling cycle using the cooling button. The time delay, of up to 10 mins, before the compressor switches on is a safety feature, to protect the unit.

When the condensate tank fills up the warning light will show. The tank should be slid from the front of the unit, and emptied. When it is replaced cooling will be resumed after the time delay mentioned above.

User Maintenance

The following items should be carried out at least on a weekly basis to ensure reliable operation & optimum performance of the air conditioning unit.

  • Remove tank from the side of the air conditioning unit and empty
  • Unclip filter from back of unit and remove loose deposits with a vacuum cleaner or brush.
  • If at any time the unit is switched off, it may take up to 10 minutes before cooling is resumed.