13
Paramete
Parametric value
Unit
Nitrate(count N)
＜
10
mg/L
Conductance(25°C)
＜
300
μs/cm
Ammonia (count N)
＜
0.5
mg/L
Alkalinity(count CaCO
3
)
＜
50
mg/L
Sulfid
Cannot be detected
mg/L
Oxygen consumption
＜
3
mg/L
Natrium
＜
150
mg/L
Note: when circulation water fails to meet requirements listed in the table above, please add anti-scale
composition to keep the unit always in normal operation
7.4 Mg-stick peplacement
(1)
To improve durability of the water tank, a Mg-Stick is installed inside the water tank. Generally, the Mg-Stick
has a lifespan of two to three years. However, if the quality of water used by the water heater is poor, the
Mg-Stick lifespan will be shortened. For Mg-Stick replacement, perform the following steps:
(2)
Before removing the Mg-Stick, drain the water tank by following drainage operations.
(3)
Open the cap on the mounting mouth for the Mg-Stick in the water tank.
(4)
Use a hex key to unscrew the Mg-Stick component, and then steadily removed the magnesium to prevent it
from falling into the inner container of the water tank.
(5)
Install a new Mg-Stick component into the mounting mouth of the Mg-Stick, and then tighten it using a hex
key.
(6)
Close the cap, and replenish water by following water replenishment operations.
Note:
the Mg-Stick must be replaced by professional maintenance personnel. Please directly contact your local
dealer or authorized service center for survice support.
