Bedienungsanleitung PowerTech PT20-ECRR (Seite 60 von 66) (Englisch)

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SYSTEMS CONNECTION

REMOTE RADIATOR COOLING SYSTEM

Use the following data in designing and installing the generator set cooling system. To insure a

safe effective installation, be sure the cooling system selected follows these parameters. Power

Technology offers radiator assemblies, which meet these requirements and will adequately cool the

generator. Select the radiator assembly best suited for the generator installation.

Due to the multitude of coach manufacturers and the variety of generator installations, only

general guidelines are provided. Adapt these recommendations to the installation. In a typical

installation the radiator assembly is installed in the same compartment as the generator. If a blower fan

radiator assembly is used, cooling air is drawn across the generator and engine and then through the

radiator. If a 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. See the specification table for total air requirements.

Depending on space limitations the radiator can be located in front of, adjacent to, or in a ventilated

remote location from the engine compartment, no more than 10 feet from the generator. To prevent re-

circulation 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 one and one half times the size of the

radiator core.

NOTE: If the radiator is to be located in a compartment separate from the engine, refer to the engine

combustion air and heat rejection requirements of the generator and engine block when designing the

cooling system. A supplemental cooling fan capable of 500cfm (28.m³/min) should be installed to

supply air to the generator compartment for these requirements.

Connect the radiator fan motor to the generator output leads L1 and L2. Be sure the radiator fan

motor rotates in the correct direction and is of the proper voltage. To protect against overload and short

circuits it is recommended that the motor be adequately fused. Install fuses between the motor and

L1 / L2 connection. A close relationship exists between the cooling system design and the generator

compartment size. Availability of space is often the determining factor in the cooling system design. See

the “Compartment Size” section of this manual prior to designing and installing the generator cooling

system.

CAUTION: The fill inlet and reservoir tank must be located at the highest point in the cooling system.

If the fill inlet is not located as directed, coolant will not completely fill the engine. The cooling system

must be purged of all air pockets for the system to function properly. If air pockets remain in the engine

the high water temperature shutdown switch will malfunction and cause the engine to over heat. Also if

the cooling system is not completely full, the low water level shutdown switch will prevent normal

engine operations.

REMOTE RADIATOR ASSEMBLY

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