50 
 
Cooling System 
If the customer want that the LED screen working normally for a long time. He should pay 
attention for the cooling system for control the temperature inside the steel structuer, at 
least less than 45 degrees Celsius. 
A. If the LED display dimension is less than 20 square meter, not need to install air 
condition, 2 air flow is enough. 
B. If the LED display dimension is more than 20 square meter, and the LED display 
screen is installed on the wall with 1 meter distance, must to install enough air condition or 
air flow as the cooling system. 
If use air flow , it should be installed on two sides of the LED screen. At least per 3-4M 
height should install 2 air flow on two sides of LED screen, the air flow should use suction 
type one. it means the air flow should take out the air from structure and cabinet. And if 
the LED display screen is more wide than 10M, should install more air flow inside steel 
structure to make sure all the area air can be took out . Usually per 5M need to add a air 
flow.When the air flow is installed , the protection net should be also installed for protect 
service person and equipment.Also there should be air inlet on the bottom of the steel 
structure. 
If choose air condition, should install it inside the steel structure and make sure there is 
enough space for installation of air condition. Generally, air condition type is 1.5P, 2P or 3P. 
Per 9-12 square meter will use 1P air condition, depend on local temperature. 
C. If the LED display use a pole steel structure to hold it, the best cooling system is air flow. 
Install the air flow on the upper area of the LED display screen, and put the air inlet on the 
bottom of the steel structure, there will be a complete air convection inside the steel 
structure, will get the best ventilation effect.