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User manual
7.5. Water tank replacement
To replace the water in the MS900B module's tank, follow these steps:
1. Remove the front right panel of the housing.
2. Open valves 3 and 2 (refer to Figure 22) and close valve 1. The water discharge pressure is
adjusted by the opening degree of valve 2.
Figure 22
3. Go to the water drainage menu (item 10 in Figure 5). In the menu, press the "Draining" button.
4. Once the water has been drained, the system will stop the pump.
5. Close valves 2 and 3 (refer to Figure 22) and open valve 1.
6. Place the front panel of the housing back in its position.
7. Fill the tank with water to the desired level (item 11 in Figure 5).
7.5.1. Draining water from the tank without
activating the pump
To drain water from the tank without activating the pump, follow these steps:
1. Remove the front right panel of the housing.
2. Connect a flexible 1/2" hose to the connector (item 2 in Figure 23). Connect the other end of the
hose to the sewage system.
23