Rotax 912 i Series Installation Manual page 103

1.2) Operating limits
General note
When correctly installed in the aircraft, the optionally available BRP-Pow-
Optional radia-
tor
ertrain radiator has enough cooling capacity to keep within the standard
specified operating limits. The flow resistance of the radiator coolant is
correctly adjusted to the cooling system. The tube size must be sufficient.
Monitoring the cooling system is important for controlling engine cooling
Boiling point of
the coolant
and prevent knocking combustion within the operating limits. It is important
that the coolant circuit is designed so that the coolant does not reach boil-
ing point under any conditions. If the temperature exceeds the boiling
point, the engine can quickly overheat due to loss of coolant.
The boiling point of the coolant is mainly influenced by:
- the type of coolant
- mixture ratio (percentage water rate)
- the system pressure (opening pressure of radiator cap)
Coolant temper-
ature
Max.
Effectivity: 912 i Series
Edition 1/Rev. 0
BRP-Powertrain
INSTALLATION MANUAL
Non-compliance can result in serious injuries or death!
WARNING WARNUNG
The cooling system must be designed so that operat-
ing temperatures will not exceed the maximum values.
Coolant temperature: (coolant exit temperature)
120 °C (248 °F)
75-00-00
Page 5
January 01/2012