Technical information

PV Grid-tied Residential Inverter and Integrated AC/DC Disconnect

Installation and Operation Manual

AVERTISSEMENT

S’assurer que le système de mise à la terre et la tension du

panneau PV entre la borne positive et négative des connecteurs

de câble des panneaux PV sont corrects avant de connecter

les panneaux au bloc de jonction en CC sur le tableau de

distribution de l’alimentation.

Note: ForalltemperatureconditionstheVOC,foreachseries

connection,musttotallessthan500VDCforallresidential

invertermodels.

To wire the inverter/disconnect unit to the PV Array, follow these steps.

1. Ensure the AC/DC Disconnect switch is in the OFF position.

2. Determine the PV array grounding scheme by following the PV

manufacturer’s recommendation.

• If the PV array is negatively grounded, proceed on to the next step.

• If the PV array is positively grounded, follow the instructions in

the appendix to properly congure the inverter for positive ground-

ing schemes.

3. Clearly label the ground and equipment ground conductor (EGC)

conductors from the PV array. The AC/DC Disconnect accepts multi-

stranded wire gauges up to 6 AWG from the PV array.

4. Insert a tting into one of the DC knockouts on the bottom of the

disconnect and fasten securely with a locking nut. Refer to Figure 4-2

for knockout locations.

5. Route the PV system array’s conductors through the tting and into the

wire raceway in the disconnect.

6. Connect the equipment ground conductor (EGC) to the grounding lug

located on the lower front of the wire raceway of the disconnect.

Note: Verifythepolarityandtheopen-circuitvoltagefromthe

PVarraybeforeyouconnecttheDCwirestotheDCinput

terminalsontheinverter/disconnectunit.Applyingan

open-circuitDC-inputvoltagethatexceedsthemaximum

DC-input-voltagerangewillcauseirreversibledamageto

theinverterandvoidthewarranty.Usetheonlinestring

calculatoratwww.pvpowered.comtodeterminethecorrect

stringconguration.

7. Connect the grounded conductor to the terminal marked “-”on the DC

circuit board on the right side of disconnect.

8. Connect the ungrounded conductor to the terminal marked “+”on the

DC circuit board on the right side of disconnect.