Kohler Generator Sets 20--2800 kW User Manual download pdf (Page 26)

TP-5700 7/9314 Section 4 Air Requirements

4.4 Air-Vac Cooling System

The air flow direction with the Air-Vac system is the

opposite of the conventional forced air cooling system.

Use the Air-Vac system in confined areas since it

includes a blower scroll which easily connects to the

ductwork. For duct dimensions refer to the dimensional

drawing for your model. With Air-Vac cooling, air is

drawn across the generator end of the unit, into the

finned areas, and then out into the scroll located at the

front of the engine.The heated air is forced through

ductwork to the outside of the building. See Figure 4-6.

Note: Order Air-Vac cooling systems factory installed

since major components of the engine are

affected making it difficult and uneconomical to

install at a later time.

TP-5700-4

1. Air-Vac scroll

2. Air inlet opening

3. Ductwork

4. Register type cover suitable for smaller sets

5. Flexible section

Figure 4-6 Air-Vac Cooling System

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Kohler Generator Sets 20--2800 kW User Manual Page 26