How do I replace the coolant? How often should it be replaced?

Replacing the Coolant
<If you are using the cooling fluid circulation system and Heat Exchanger, you need to replace the coolant regularly >

1. Check the level and color of the coolant every months.
- If the coolant is badly contaminated, replace it (and its filter) immediately
- When the coolant level is low, add more, or replace it if it is contaminated.
 　 2. Coolant should be replaced every six months to 1 year.
- If the coolant is badly contaminated, replace it (and its filter) immediately

2. Coolant
 Use distilled water or hyperpure water. Tap-water or deionized water may cause a malfunction.