Riva 90 ARGO - Cooling System

12 - INFORMATION FOR USE339
12.2 PRECAUTIONS FOR HARSH CLIMATES
Regularly check that all equipment and machinery containing water is pro-
tected with the correct proportion of non-toxic antifreeze. If the outside tem-
perature is below or close to 0°C, the fresh water and sea water systems run
the risk of freezing.
Piping and hoses may break from freezing and this could lead to the yacht
sinking.
The systems subject to the risk o f freezing include, but are not limited to:
• The engine and generator sea water and fresh water cooling systems;
• The watermaker system;
• The fresh water system (cold and hot water piping, pumps and tanks);
• The windscreen washing system;
• The toilet and waste systems (piping, pumps and black water tanks);
• The air-conditioning system pumps and piping, all sea water pumps and
piping;
• The icemakers and refrigerators, etc..
For more information on the maintenance and service requirements of your
yacht and its equipment, and for special information about maintenance in
cold weather, see the User Manuals provided by the Manufacturers for spe-
cic information.
12.2.1 Cooling system
The antifreeze liquid is advised for all kinds of climates: it increases the
working temperature range, lowering the freezing point and increasing the
boiling point.
When the temperature comes close to 0°C it is necessary, in order to avoid
the risk of freezing, to make sure that the cooling lines are lled with anti-
freeze mixture. If not, replace the cooling liquid with such a mixture.
Before lling the system with antifreeze mix, it is necessary to wash the cool-
ing circuit.
ENVIRONMENT
Concentrated coolant must be treated as special waste.
When disposing of used coolant, abide by the regulations of the local
authority.
CAUTION
Regularly check that all devices containing water are lled with the correct
quantity of anti-freeze if necessary.
Each time that the outside temperature drops below 0°C the water (fresh
or sea) inside the ducts may freeze and cause them to break.
All systems and equipment containing water, both sea water systems and
fresh water systems may run this risk.