BRP-Rotax
INSTALLATION MANUAL
SYSTEM DESCRIPTION
For a detailed System description refer to the latest issue of the Operators Manual (OM).
SYSTEM LIMITATIONS
Operating limits Refer to latest issue of the Operators Manual (OM).
m WARNING
Non-compliance can result in serious injuries or death!
The cooling system must be designed so that operating temperatures will not exceed
the maximum values.
Coolant types It is important that the coolant circuit is designed so that the coolant does not reach boiling
point under any conditions. If the temperature exceeds the boiling point, the engine can
quickly overheat due 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)
For permissible coolant types see SI-916i-001, latest issue.
System pressure
System Limit
Min. Max.
Coolant system pressure
–
1.2 bar (18 psi)
Hose connecting
expansion tank to
overflow bottle
System Limit
Min. Max.
Able to withstand heat and vacuum
without collapsing-able
125 °C (257 °F)
–
A soft walled hose is not suitable as it can collapse and cause cooling system failure.
Expansion tank To ensure proper operation of the cooling system, the expansion tank with pressure cap in
the main operating systems must be installed on the highest point of the cooling circuit.
Effectivity: 916 i A / C24
Edition 0/Rev. 1
75–00–00
Page 3
December 01 2023
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