HTW VAW Series - How to Replace the Magnesium Stick; Schematic Overview of the Water and Refrigeration Circuit

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2) Add the solar control. While the parameter 14= 1, solar energy control is available. The
terminal “TO PUMP” is connected solar energy water pump, “FS” is connected the flow switch of
solar water circuit, “SOLAR SENSOR” is testing the temp of solar thermal collector.
3) The Magnesium stick is an anti-corrosion element. It is assembled in the water tank to avoid
the creation of fur around the inside tank and to protect the tank, and other components. It can
help to extend the life-span of the tank. Check the magnesium stick every half year and
change it if it has been used out！Note: replace by professional.
How to replace the magnesium stick
:
- Turn the power of the unit ‘OFF’ and pull out the plug.
- Drain all the water out of the tank.
- Remove the old magnesium stick from the tank.
- Replace the new magnesium stick.
- Recharge the water.
Schematic overview of the water and refrigeration circuit
Choose the suitable unit
Please refer to the table below to choose the suitable unit.
Family members
Tank capacity
2 ~ 3 people
150L
4 ~ 5 people
200L
6~ 7 people
300L
More than 8 people
500L
Note: The table is just for reference.