4-31
Replacing water in water heater tank
4
Maintenance
12
Supply new water and antifreeze liquid in the hot water
tank.
13
Return the hot water tank to its original position.
(1)Set the hot water tank to the system.
(2)Place the water heating system cover.
(3)Set the clip.
(4) Attach the cover on the left back side of the main unit.
14
Press the key.
15
Press the key several times to finish.
• Precautions for antifreeze liquid
Water and antifreeze liquid compound ratio should be 2 (water) to 1 (antifreeze liquid).
If the ratio of antifreeze liquid is high, hot water pump may be damaged or it may cause an error for hot
water control.
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