Horizontal Installation - Siemens SINAMICS S120 Equipment Manual

8.4

Horizontal installation

SINAMICS S120 Liquid Cooled units can operate in a vertical position with the unit resting
on its rear panel.
To prevent heat concentrations inside the units in this mounting position, an external fan
needs to be installed which is capable of removing heated air from the devices.
A baffle (referred to below as air distribution baffle) must also be mounted above the unit.
This ensures that the air is sucked through the IP20 covers in an even distribution over the
entire length of the device, thereby ensuring that even components at the bottom (in Fig.
8-11 on left) of the module remain within the permissible tolerance range.
The components required for a horizontal mounting position can be seen in Fig. 8-11.
Fig. 8-11 Basic layout for horizontal mounting position.
The height h, the distance between the module top edge (horizontal) and the air distribution
baffle A must be in the range 25 mm < h < 60 mm!
Requirement for cover part "A"
In the case of a single module (Power Module, Basic Line Module or Motor Module) or a
Motor Module mounted adjacent to a Basic Line Module: Baffle A is closed, the side
openings ensure adequate distribution of air flow.
For configurations with several modules mounted adjacently, baffle A must be perforated.
The perforation must be designed such that up to 60 % of the opening area is in the lower
module half (Fig. 8-11, between X1 and X2).
Chassis Power Units Liquid Cooled
SINAMICS S120 Equipment Manual, Edition 04/2007, 6SL3097-2AM00-0BP2
Cooling circuit and coolant properties
8.4 Horizontal installation
8-17