moll OPzS.solar Operating Instructions

Operating instructions
Stationary solar vented lead-acid batteries
Assembly and CE-marking by............................
.....................................................................
Commissioning by ...........................................
WARNINGS
Usage of the battery which does not comply with the OPERATING INSTRUCTIONS,
repairs carried out with spare parts not approved by the manufacturer, use of additives
in the electrolyte or unauthorised interference with the battery will invalidate any claim
for warranty.
Used batteries with this symbol are reusable goods
and must be returned to the recycling process or
must be disposed in accordance with the rules of the
country concerned.
1. Commissioning of filled and charged batteries
Before commissioning all cells/blocks must be inspected for mechanical damage.
Assemble the cells/blocks in accordance with their polarity. If necessary, the contact
surface of the poles and the connectors has to be cleaned. The connectors have to be
firmly seated by tightening the terminal screws with a torque of 22±1 Nm. The distance
between block batteries and cells should be 10 mm in an installation. Observe the
Installation Instruction. Check the electrolyte level in all cells. If necessary top up with
purified water as specified under DIN 43530 part 4 all cells having lower level of electrolyte.
Be aware that the electrolyte level will increase during charging. during charging. Connect
the battery to the DC power supply, with the charger switched off, battery fuses removed
Observe operating instructions and position them within sight of
the battery! Work only on batteries under instruction of skilled
personnel!
When working on batteries wear safety glasses and protective
clothing! Comply with accident prevention rules as well as with
DIN VDE 0510, VDE 0105 part 1!
No smoking! Do not expose the battery to an open flame, a
glowing fire or sparks as explosion and fire hazards exist.
Acid splashes in the eyes or on the skin must be washed out or
off with plenty of water. Then see a doctor immediately. Clothing
exposed to acid should be washed out with water without delay.
Dangerous voltages!
The electrolyte (diluted sulphuric acid) is extremely corrosive.
Block batteries or cells are heavy! Ensure secure installation!
Only use suitable transport equipment!
Explosion and fire hazard due to explosive gases escaping from
the battery. Caution! Metal parts of the battery are always live;
therefore do not place items or tools on the battery! Avoid short
circuits!
Date............................
Date............................
OPzS.solar & OPzS.block.solar
Number of cells/blocks:
...................................................
Type: ..........................................
and the load disconnected, ensuring that the
polarity is correct: Positive terminal of the battery
to the positive terminal of the charger. Multipole
cells have to be connected using all poles with
same diameter and length of connectors. Switch
on the charger and charge as per point 2.3.
In case of alternative power supplies like solar
photovoltaic installations or wind turbines (point
2.3), all cells of the battery have to be fully
charged until the absolute deviation of the
voltages per cell is less than 1 % and the density
of the electrolyte has reached the nominal value
according to the
No load has to be connected to the installation
until the battery is fully charged.
2. Operation
At installation and operation of stationary batteries
for solar applications the standard EN 50 272-2
has to be observed.
Solar block batteries and cells should always be
operated with charge controllers and deep
discharge protection. Any exposure to direct
sunlight as well as any change of ambient
temperature >10 K should be avoided.
2.1. Operation modes standby and buffer
In this case the load, the DC power supply and
the battery must be connected permanently in
parallel. Thereby the charging voltage is the
operational voltage of the battery and also the
system voltage.
a) During standby operation (float) the DC power
supply must be always able to provide the
maximum load current and the battery charging
current. The battery only supplies current, if the
DC power supply fails. The charge voltage at
20°C must be set for OPzS.solar ±1% measured
at the batteries terminals.
b) During buffer operation the DC power supply is
not always able to provide the maximum load
current. The load current temporarily exceeds the
rated current of the DC power supply. During this
time the battery supplies current. The battery is
not always fully charged. Depending on the load,
the charge voltage should be set at (2.25 to
2.30 V) x number of cells.
2.2. Discharge
The batteries should not be discharged below the
nominal capacity and final voltage per cell as
indicated in the technical specification. Deep
discharges of more than 80 % of the nominal
capacity have to be avoided as the life time of the
batteries will be reduced.
Batteries have to be recharged immediately
after a partial or complete discharge but at
least within a period of one week up to 4
weeks to
To prevent electrolyte stratification, an equalizing
charge must be carried out according to operating
instructions at DOD > 30 % C
batteries with electrolyte circulation have to be
used.
specification.
100 %.
per day or
10