AC working system (GP Rating- MEK) Detailed in Tamil

On board we use HVAC SYSTEM (Heating-Ventilating-Air Conditioning), it's basically a centralized system.
One giant machine in specific room and air is distributed through pipes in all cabines and other places like Bridge, Engine control room, etc.
HVAC system works in multiple ways... As it's name says... We can use as heater to increase temperature in your cabin when you ship is sailing in cold regions, and also we can as a ventilator in a good climatic conditions and ofcourse we switch to air conditioning when it's super hot outside.
All these can be done with this one system.
At home normally it's a split A/C we have 2 different machines assembled at home one inside and one outside the home. There it's not possible to do all these stuffs....
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