A split system air conditioning unit circulates air inside the room. The outside unit does not mix with the air circulating through the indoor part of the unit. If you have musty odours from your Split System, it is caused by the indoor part of the unit only, not the... 
There are two types of air conditioner; Evaporative Heat Pump – Reverse Cycle Which is right for you; Evaporative systems work in open places with ventilation Reverse Cycle work in closed places with no ventilation Which Style of Air Conditioner; Ducted Split... 
Even if your air conditioning seems to be working fine, regular servicing is still extremely important. Rather than just sitting around and waiting for the unit to face a potentially costly problem, a good maintenance schedule can ensure it continues to perform... 