Supplementary Heating Device - SSANGYONG RODIUS Owner's Manual

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SUPPLEMENTARY HEATING DEVICE

• The DI engine equipped vehicle has the supplementary heating devices to increase the heating effect before the engine cool-
ant is fully heated. The supplementary heating devices are as follows:
FFH
- (Fuel Fired Heater)
PTC
- (Positive Temperature Coefficient)
FFH (Fuel Fired Heater)
This supplementary heater is a fuel burning type and improves the
heating effect by increasing the engine coolant temperature. This de-
vice is operated by two steps according to the coolant temperature
and the ambient temperature. Compared to PTC, FFH cannot be oper-
ated or stopped by driver's intention. The FFH is automatically operated
by conditions of the coolant temperature and the ambient temperature.
FFH Operation
- 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 en-
gine is not a malfunction.
- In initial operating stage, the fuel pump generates the operating sound
and the FFH heater produces white smoke. These are normal states
to fill the fuel into the FFH fuel line.
VENTILATION, HEATING, AIR CONDITIONING AND AIR PURIFICATION SYSTEM
* FFH (Fuel Fired Heater) is optional.
PTC (Positive Temperature Coefficient)
This supplementary heater is an electrical air heating type and installed
on the heater outlet port. This device improves the heating effect by
increasing the temperature of flowing air into the passenger room.
This device is operational/non-operational when the engine control unit
supplies/cuts off the voltage to PTC according to the coolant tempera-
ture and the ambient temperature.
Operational Condition
This device is activated when the temperature switch is at any position
other than "OFF" position and the coolant temperature and the ambient
temperature is within a specified range.
Non-operational Condition
- The temperature switch is at "OFF" position
- Defective ambient temperature sensor
- During engine cranking
- Too low battery voltage
- During pre-glowing process ( indicator ON)
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