Installation Manual: 22.8kWh

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13. Remove personal metal items such as rings, bracelets, necklaces, and watches when working with

electrical equipment.

14. The AccESS unit does not have any user-serviceable parts. Do not disassemble the inverter

except where noted for connecting wiring and cabling. See your Warranty for instructions on

obtaining service. Attempting to service the components inside the AccESS unit yourself may

result in a risk of electrical shock or fire and void the Warranty. Internal capacitors remain

charged after all power is disconnected – wait 10 minutes before servicing.

15. To reduce the risk of electrical shock, disconnect both AC and DC power from the AccESS unit

before attempting any maintenance or cleaning or working on any components connected to the

inverter.

1.2 – Safety & Protective Features

1.2.1 – Battery Breaker

All PHI 3.8 batteries within the AccESS unit are outfitted with an hydraulic/magnetic circuit breaker which will

show a white base when tripped. This breaker increases safety during shipping and installations and allows the

PHI 3.8 battery to effectively be turned “OFF” or “ON.” The breaker works in conjunction with the built-in

battery management system (BMS) and creates additional safety, efficiency and functionality to the overall

power storage system.

Figure 1.0 - PHI 3.8 kWh 51.2V

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Circuit Breaker

CAUTION: Circuit Breakers, Disconnects and Fuses should be employed throughout several points of a power

storage and generation installation to effectively isolate and protect all components of the system to safeguard

against faults, short circuits, polarity reversals or a failure of any component in the overall system. Fuses,

breakers, wiring ratings and values should be determined by established standards and evaluated by certified

electricians, licensed installers, and regional code authorities. Although each PHI 3.8 battery contains both an

80 Amp circuit breaker and an internal BMS with circuitry that protects the Lithium Ferrous Phosphate cells

from overcharge, over-discharge and excessive load amperage, the PHI batteries must always be installed with

a charge controller and the appropriate settings to protect the PHI 3.8 battery from open PV voltage and other

high voltage charging sources. The PHI 3.8 Battery Management System (BMS) and built-in circuit breaker

alone will not protect the PHI batteries from extreme electrical conditions. Failure to adhere to installation

protocol will void the Warranty.

REV20210319