Installation Manual: 22.8kWh

REV110320

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Step 5: Fully Charge the Battery Bank Prior to Powering on Loads

A connection to an AC power source will result in the Sol-Ark automatically charging the batteries from that

power source when the Sol-Ark is turned ON.

If the system does not include any AC power source, and only solar PV as the batteries’ charging source, turn

on the PV disconnect and wait until the PHI battery bank has had a chance to charge fully via solar power

before turning on any loads.

For DC Coupled systems, the solar PV array’s ON/OFF switch is on the left hand side of the Sol-Ark unit.

Step 6: Turn on Loads

Fully charged PHI batteries will reach a charging voltage of 54.4 – 56 VDC and will then “rest” at approximately

53.3 VDC as soon as they are no longer actively charging. At this point, turn on the Sol-Ark’s Load Output

breaker and main house breaker panel circuits, if applicable.

4.5.7 – Lockout / Tagout

Step 1: Detailed procedures for equipment

Begin by making sure you’ve identified the equipment correctly and accurately, including its specific location.

Next, determine the correct procedure for shutting down and restarting the equipment. Detail that procedure,

step by step, in writing. Consider all of the energy sources that may be connected to the equipment. Be very

specific, because ambiguous language could lead to an incorrect or even dangerous action.

Step 2: Notify affected employees

When maintenance is going to be performed, all of the employees that may be affected should be notified. Let

them know the timing of the work, and how long the equipment may be unavailable. If the unavailability of the

equipment requires a change in work processes, be sure they are familiar with the steps to be taken.

Step 3: Shut down equipment properly

Explain the shutdown process in detail. It’s not enough to say something like “disconnect the machine.” To

ensure everyone’s safety and reduce the potential for damage, the shutdown instructions should be detailed.

Spell out the exact actions to be taken and the correct sequence for performing those actions.

Step 4: Disconnect all primary energy sources

Although this may seem fairly self-explanatory, once again, it’s important to be very detailed. Whether the

primary energy sources include electricity, steam, water, gas, compressed air, or others, don’t assume that the

person performing maintenance will know the correct procedure to follow. Again, explain exactly what needs

to be done.

Step 5: Address all secondary sources

While disconnecting the primary energy sources may remove much of the potential danger, it’s possible that

there sources of residual energy, such as trapped heat in a thermal system, fumes that may need to be

vented, or even tension in a spring assembly. Identify the process that will relieve any remaining pressure or

other energy. Also consider other hazards, such as moving equipment that must be secured before work

begins.