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Remote Radiator Cooling System
Use the following data to design and install the
generator set cooling system.
effective installation, be sure the cooling system
selected follows these parameters. Kohler Co. offers
radiator assemblies which meet these requirements
and adequately cool the generator. Select the radiator
assembly appropriate for the generator installation.
Due to the multitude of coach manufacturers and variety
of generator installations, only general guidelines are
provided.
Adapt these recommendations to the
installation. In a typical installation, install the radiator
assembly the same compartment as the generator. If
using the blower fan radiator assembly is used, cooling
air is drawn across the generator and engine and then
through the radiator. If the suction fan radiator assembly
is used, the suction fan pulls cooling air through the
radiator and then past the generator set. If the radiator
assembly alone is used, the installer must supply an
electric blower or suction fan to circulate the cooling air
through the radiator. See Figure 6-10 and Figure 6-11.
Depending on space limitations, locate the radiator in
front of, adjacent to, or in a ventilated location remote
from the engine (maximum horizontal distance from the
generator is 10 ft.). To prevent recirculation of heated
air, be sure to maintain a tight seal between the radiator
and the discharge chute. Generally, the discharge chute
opening should be approximately 1 1/2 times the size of
the radiator core.
If locating the radiator in a compartment separate from
the engine, remember the engine combustion air and
heat rejection requirements of the alternator and engine
block when designing the cooling system.
supplemental cooling fans capable of 265 cfm
3
(7.49 m
/min) should be installed to supply air to the
generator compartment for these requirements.
TP-5605 4/97
To ensure a safe,
NOTE
If installing a non-Kohler radiator assembly, be sure the
radiator fan motor rotates in the correct direction and is
of the proper voltage.
If sizing a non-Kohler radiator, follow these general
guidelines for radiator selection.
Heat Rejection:
Cooling System Water Flow:
Max. water head allowed:
Connection Points to Radiator 15/20CCO:
Coolant Inlet: 1.10 in. (28 mm) I.D. Hose
Coolant Outlet: 1.10 in. (28 mm) I.D. Hose
*If the application requires excessive runs between the
generator set and the remote radiator, check the water
flow. Be certain the radiator is sized accordingly for the
installation.
The cooling system fill (radiator or coolant recovery
tank) must be the highest point in the cooling system.
(See Figure 6-12.) If the cooling system fill is not located
as directed, cooling water will not completely fill the
engine and result in overheating of the engine and
disablement of the high water temperature shutdown
switch.
A close relationship exists between the cooling system
design and the generator compartment size. Availability
of space is often the determining factor in cooling
system design. See Compartment Size section of this
Two
manual prior to designing and installing the generator
cooling system.
NOTE
15 kW— 792.99 Btu per min.
20 kW— 1050.58 Btu per min.
Typical: 35 liters per min. at 1800 rpm*
31 liters per min. at 1500 rpm*
230_ F (110_ C) ± 3_
NOTE
Installation 6-9
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