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Aquamatic water refilling system (optional accessory)
1. Application
The water refilling system is used to automatically maintain the
nominal electrolyte levels. The charging gasses escape through the
vent on each cell.
2. Function
A valve and a float together control the topping up process and
maintain the correct water level in each dell. The valve allows the flow
of water into each cell and the float closes the valve when the correct
water level has been reached. For fault-free operation of the water
refilling system, please note the instructions below:
2.1. Manual or automatic connection
The battery should be topped up shortly before completion of a full
charge, as at this point the battery has reached a defined operational
state resulting in satisfactory electrolyte circulation. Filling takes place
when the connector (7) from the tank is connected to the coupling (6)
on the battery.
2.1.1. If manual connection is used the battery should only be
connected to the filling system once a week.
2.1.2 If automatic coupling is used (with a magnetic valve
controlled by the charging apparatus) the charger
main switch selects the correct moment for filling.
Note: In this case we recommend a water refilling at least once
a week to ensure the right level of the electrolyte.
2.1.3 In multiple shift and warm ambient temperature operations, it
may be necessary to have shorter topping up intervals.
2.2. Filling time
Filling time depends on the utilisation rate and the corresponding
battery temperature. Generally speaking, the top up process takes a
few minutes and can vary according to the battery range; after this, if
manual filling is being used, the water supply to the battery should be
turned off.
2.3. Working pressure
The water refilling system should be installed in such a way that a
water pressure of 0.2 to 0.6 bar is obtained (with at least 2 m height
difference between the upper edge of the battery and the lower edge
of the tank). Any deviation from this means that the system will not
function properly.
2.4. Purity
The topping up water must be purified. The water used to refill the
batteries must have a conductance of not more than 30 µS/ cm. The
tank and pipes must be cleaned before operating the system.
2.5. Pipe system on the battery
The pipe system to the individual battery cells must follow the battery’s
electrical circuit. This reduces the risk of current leakage in the presence
of electrolytic gas causing an explosion (EN 62485-3). A maximum of 10
cells may be connected in a series. The system should not be modified
in any way.
2.6. Working temperature
In winter, batteries fitted with Aquamatic should only be charged or
refilled in a room temperature above 0 °C.
2.7. Flow control
A flow indicator built into the water supply pipe to the battery monitors
the filling process. During filling the water flow causes the built-in disc
in the flow indicator to turn. When all the plugs are closed the disc
stops, indicating that the filling process is complete.
1. tank
2. outflow connector with ball valve
3. plug with magnetic valve
4. plug with ball valve
5. flow control
6. coupling
7. connector
8. battery charger
9. charger main switch
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