AccESS Installation Manual

Table Of Contents

REV020620

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13. 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.

14. 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. Putting the AccESS unit in Standby mode will not reduce this risk.

1.2 – Safety & Protective Features

1.2.1 – 80A Breaker

All PHI 3.8 Batteries within the AccESS unit are outfitted with an 80A 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 48V 80A 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 3.8 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 internal circuit breaker alone will not protect the PHI 3.8 Batteries from these

extreme electrical phenomena. Failure to adhere to installation protocol will Void the

Warranty.