Ffh (Fuel Fired Heater) System; Overview - SSANGYONG Kyron Repair Manual

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FFH (FUEL FIRED HEATER) SYSTEM

The system is to increase the coolant temperature quickly by firing diesel fuel in the burner that is installed in

engine cooling system when in winter time the ambient temperature and engine coolant temperature is low.

(Option) The DI engine equipped vehicle has the Positive Temperature Coefficient (PTC) system as a basic

equipment. FFH is operated by the coolant temperature and ambient temperature while PTC is operated by the

coolant temperature intake air temperature.

FFH system consists of independent fuel lines and fuel pump, coolant circuit and coolant circulation pump,

electrical glow plug and exhaust system. It also provides the diagnostic function. FFH system cannot be oper-

ated or stopped by driver's intention. The FFH system is automatically operated by the coolant temperature and

the ambient temperature. The FFH system operates up to more 2 minutes to burn the residual fuel inside the

system when stopping the engine during its operation. Therefore, a certain period of FFH operation after stop-

ping the engine is not a malfunction.

Components Locator

Diagnostic connector

Ambient temperature switch

FFH Fuel pump

AIR CONDITIONING SYSTEM

EFFECTIVE DATE

KYRON SM - 2005.09

AFFECTED VIN

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