DISCOVER DRY CELL Manuale operativo - Pagina 6

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• Manually operated switching device that also automatically opens or breaks the circuit in the event of an over current

(circuit breaker) for each string.

• Same number of batteries for each string.

• Same heat or temperature potential for each string.

• Always connect the individual series strings first and then check that the different strings are at the same potential before

connecting them in parallel.

3.5 Series Connections

Discover

Solar Dry Cell may be connected in series to increase system voltage. In the case of each series

connected string, only use batteries of the same voltage, capacity, design and age.

• Same cables or connector bar resistance for each string e.g. same cross-section, same length and

same conductor type (copper, aluminum)

• Disconnect capabilities (breakers) on each string for maintenance and safety.

3.6 Series/Parallel Connections

To increase both voltage and capacity, Discover Solar Dry Cell may be connected in series and parallel.

Refer to diagram for series/parallel connections. Battery cables must be sized to the specifications

required by the inverter charger and must be installed in accordance with the standards set by the

authority having local jurisdiction.

3.7 Electrical Connections

Battery cables must be sized to the specifications required by the inverter charger and must be installed

in accordance with the standards set by the authority having local jurisdiction.

• Ensure that the battery is installed and connected in the correct polarity

• If the battery circuit has a disconnect - open the disconnect to isolate battery

• Check that all contact surfaces are clean. If required, clean poles/terminals with a brass brush/pad.

• When using a washer to connect a battery cable to a battery terminal, it is very important to

ensure the battery cable is contacting the lead surface of the terminal and that the washer is

placed on top of the cable. Do not place the washer between the battery terminal and the battery

cable, this creates high resistance and can cause terminal meltdown.

• Do not ground the terminals to any metal mounting, fixture, or body part

• Connect battery cables. Connect the ground cable last to avoid sparking

• Tighten terminal screws using the terminal torque values as in the table below and thinly coat connections and terminals

with dielectric grease or silicone to prevent corrosion

• If the battery circuit has a disconnect - close disconnect to reconnect the battery

4. Operation

Before charging the battery make sure to read and understand the instructions that come with the Power Conversion device. Never

attempt to charge a battery without first reviewing and understanding the instructions for the Power Conversion device being used.

Terminal Type

(F10) M8 Button Terminal

(F10) M10 Button Terminal

AM Dual Terminal (AP and 5/16" threaded stud)

AT Dual Terminal (AP and 3/8" threaded stud)

All cable ends must be connected to battery terminals without

any washers between terminal bushing and cable ends.

▲ CAUTION!

Review operating limits - see datasheets.

Terminal Torque

7 ft-lbs / 10 NM

12 ft-lbs / 16 NM

9 ft-lbs / 13 NM

10 ft-lbs / 14 NM

▲

NOTE

Series Connection

Series/Parallel Connection

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