SSANGYONG KYRON 2010.01 Manual page 849

9. FFH (FUEL FIRED HEATER) SYSTEM COMPONENTS
1) OVERVIEW
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 operated 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
stopping the engine is not a malfunction.
Components Locator
01-17
6810-15
AIR CONDITIONER
KYRON 2010.01