Denyo DIS-390ES, Инструкция по эксплуатации, Страница: 31 / 67

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5-2 Cooling water
(1) Cooling water to be used
Mix long-life coolant (LLC) of anti-freeze and anti-rust for aluminum radiators into soft
water of good quality such as tap water, and use it as cooling water.
Mixing rate of LLC should be selected within the range of 30-50%.
If the mixing rate decreases to 30% or lower, rust prevention effect decreases, and if it
increases to 50% or higher, freezing prevention properties deteriorate.
Standard mixing rate of LLC and operating ambient temperature are as shown below.
30%: -10
℃
40%: -20
℃
50%: -30
℃
Replenish LLC of the same brand and concentration with the one currently used.
In general, LLC needs to be replaced every 2 years.
(2) Total quantity of cooling water
DIS-390ES/ES-C/ES-D
12 L
Value in parentheses is reserve tank capacity.