66
COOLANT
WATER & ANTI-FREEZE
Please refer to the Fluids section for complete information.
WATER BOILER
A water boiler can be connected to the engine coolant
circuit. If the boiler is located above the engine, an
additional recovery tank must be installed above the
boiler.
Ducts to the boiler must be in accordance with high
temperature and high pressure. Never attempt to use
flexible hoses supplied from a hardware store.
A specic boiler kit is available from Nanni Industries.
Please contact your nearest Nanni representative for
more information.
The amount of coolant must be adapted depending
the model of water boiler to completely ll the coolant
system.
COOLANT EXPANSION
When the engine is running, the internal temperature is
high ; as a result, the coolant liquid expands its volume.
The heat exchanger is designed to accomodate this
normal and physical expansion.
Make sure not to overll the heat exchanger when lling
with coolant.
S08 MAINTENANCE
COOLANT LEVEL
DANGER !
Never open the coolant lling cap or any plug of the
cooling system when the engine is operating or still
warm. Steam or hot fluid can spray out. Prevent potential
injuries !
Check the coolant level before starting the engine.
1. Stop the engine and remove the key from the panel.
2. Unscrew the plastic ller cap (in blue on below
picture) on the exchanger tank (in grey on below
picture).
3. Open the vent (in blue in the red circle).
4. You may top-up with clean water, only if amount to
ll is very remote. Use glycol mix if tank is almost
empty.
5. Stop lling when vent is overflowing.
6. Reinstall the vent and the coolant cap. Secure them.
NOTE !
This Max level in the tank is representing the effective
level of coolant only when the engine is cold.
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