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INDUSTRIAL GENERATOR SETS — APPLICATION & INSTALLATION MANUAL — REV. #4 (09/07/07) — PAGE 63
MECHANICAL INSTALLATION — MOUNTED RADIATOR COOLING
Mounted Radiator Cooling System
A generator set with a factory-mounted radiator is an
integral cooling and ventilating system. This is the
recommended configuration involving the least amount of
auxiliary equipment, piping, control wiring, and coolant.
Mounted radiator cooling system uses a set mounted
radiator and engine pusher fan to cool engine water. Air
travels from the generator end of the set, across the engine,
and out through the radiator. An integral discharge duct
adapter flange surrounds the radiator grill.
A primary consideration for mounted radiator installations
is the necessity of moving large quantities of air through
the generator room.
Figure 26. Duct Air Installation
Radiator Set Requirements
Radiator set cooling air is drawn past the rear of the set by
a pusher fan that blows air through the radiator (See Figure 26
below). Locate the air inlet to the rear of the genset. Make
the inlet vent opening 1-1/2 to 2 times larger than the radiator
area to ensure proper cooling.
Locate the cooling air outlet (as close as possible) directly
in front of the radiator. The outlet opening must be at least
as large as the radiator area. Length and shape of the air
outlet duct should offer minimum restriction to airflow.
The radiator has an air discharge duct adapter flange. Attach
a canvas or sheet metal duct to the flange and the air outlet
opening using screws and nuts so duct can be removed for
maintenance purposes. The duct prevents circulation of
heated air. Before installing the duct, remove the radiator
core guard.