P20.00-0406-06
1 Coolant compensation tank
1a Silica gel container
3 Coolant thermostat
4 Coolant pump
6 Heater heat exchanger
7 Vent pipe to the coolant compensation tank
M Engine
S Screen cleaning water tank, coolant-heated
A31 Heating system delivery unit
A31y1 Left duo valve
A31y2 Right duo valve
A From the radiator to the coolant pump via the thermostat
B From the cylinder head to the radiator
C Vent line
The 601 engine is equipped with a sealed cooling system. The coolant circuit is regulated via the coolant thermostat (3).
A distinction is made between short-circuit operation (up to approx. 85 °C), mixture (85 - 100 °C) and operating state (in excess of 100 °C).
The duo valves (A31y1, A31y2) are used to control the coolant temperature in the heater's heat exchanger (6).
In the compensation tank (1), the temperature-dependent volumes of the cooling system are compensated.
The 601.913 engine is additionally equipped with a silica gel container (1a) in the compensation tank (1) as corrosion protection.
In the event of high ambient temperatures, coolant may escape at the overflow line after the engine has been switched off.
Referenced documents
- gf2000p1102a Coolant thermostat bypass mode function
- gf2000p1103a Coolant thermostat mixing phase function
- gf2000p1104a Coolant thermostat operating state function