Sinexcel SVG 100 Ultra User Manual page 143

FAN-FORCED AIR COOLING
Sinexcel doesn't suggest user to design the cabinet with fans, which means the IP class of the cabinet is
higher than IP4X.
When design the cabinet with fans inside for cooling, cabinet ventilation design should meet the following
items:
Open the ventilation hole in the front door, use fans to exhaust hot air in the rear.The effective ventilation

area in the front door should not be less than 1.5 times the module ventilation area. The heat dissipation
capacity of the fans in the rear side should be more than 1.5 times of the heat volume of all modules. The
cooling requirement of single module please refer to user manual.
Front and rear door both have fans. The heat dissipation capacity of the fans in the front and rear door

should be more than 1.5 times the heat volume of the module.
The installed position of fans should face the module ventilation hole as much as possible.

For fan-forced cooling cabinet that IP class is higher than IP4X, the drawing of the cabinet must be sent to
Sinexcel engineer for confirmation. The following information is required:
The appearance drawing of the cabinet and the structure drawing. The ventilation hole and fan install

position can be clearly shown in the drawing.
The cabinet with fans. The heat dissipation capacity of the fans is required.

The cabinet with ventilation holes. The effective ventilation area is required.

Installing fans in cabinet to help vent is called fan-forced air cooling, 2 common design are listed below, and
the following requirement should be followed:
Natural air cooling on front side, fan-forced cooling on rear side.

Cabinet's front ventilation area should not be less than 1.5 times the module's front ventilation area. The

exhaust air volume of the fans in the rear should not be less than 1.5 times than summary heat volume of
all modules. The cooling requirement of single module please refer user manual.
Fan-forced air cooling on both front and rear side

The exhaust air volume of the fans on front and rear door should both not be less than 1.5 times than

summary heat volume of all modules.
Cabinet's ventilation hole position should face against module ventilation hole position, and the fan's

installing position should face against module's front or rear ventilation hole position.
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