©1999 Trace Engineering
Figure 24A
AC Input/Output UtilitySub-panel Wiring (Dual Inverter Models)
Wire-nut Connections in Main Utility Box
2.0 INSTALLATION
21
FROM
UTILITY
MAIN UTILITY PANEL
FROM INVERTER
UTILITY FEED
FROM METER
POWER PANEL
DUAL INVERTERS
GROUND
NEUTRAL
LINE 2 IN (Inverter 2)
LINE 1 OUT (Inverter 1)
LINE 2 OUT
NEUTRAL OUT
GROUND
NEUTRAL
NEUTRAL
LINE
1
LINE OUT
GROUND
EXISTING HOUSE WIRING
MAIN
BREAKER
SUB PANEL
LINE OUT 120 V AC (L2)
NEUTRAL OUT
GROUND
120/240 V AC BACKUP
POWER
TO LOAD
(NEW WIRING)
DISCONNECT
NOTE: FOR ILLUSTRATIVE PURPOSES ONLY.
BREAKER BOXES VARY DEPENDING ON APPLICATION.
MAIN PANEL WIRING TO NON-CRITICAL LOADS
IS NOT ILLUSTRATED.
EARTH GROUND
120 V AC BACKUP POWER
TO LOAD
120 V AC
120 V AC
GROUND
CAUTION:
NEUTRAL BONDED TO GROUND
IN MAIN PANEL ONLY!
LINE 1 IN (Inverter 1)
DISCONNECT
LINE 2 OUT (Inverter 2)
LINE OUT 120 V AC (L1)
240 V AC (L1-L2
240 V AC
240 V AC
AC BYPASS BOX
2903-00-029
FROM
UTILITY
MAIN UTILITY PANEL
FROM INVERTER
UTILITY FEED
FROM METER
POWER PANEL
DUAL INVERTERS
GROUND
NEUTRAL
LINE 2 IN (Inverter 2)
LINE 1 OUT (Inverter 1)
NEUTRAL
LINE
1
MAIN
BREAKER
SUB PANEL
LINE OUT 120 V AC (L2)
NEUTRAL
GROUND
120/240 V AC BACKUP
POWER TO LOAD
DISCONNECT
EARTH GROUND
120 V AC
120 V AC
GROUND
CAUTION:
NEUTRAL BONDED TO GROUND IN MAIN PANEL
ONLY!
NEUTRAL/GROUND BOND MAY BE MADE VIA
THE METAL UTILITY HOUSING AND NOT
CONTAIN A SEPARATE BUS BAR.
FOR ILLUSTRATIVE PURPOSES ONLY.
LINE 1 IN (Inverter 1)
DISCONNECT
LINE 2 OUT (Inverter 2)
LINE OUT 120 V AC (L1)
240 V AC
240 V AC
GROUND
NEUTRAL
NEUTRAL
RED (L2)
WHITE
BLACK (L1)
WHITE
BLACK
WHITE
BLACK
GREEN
GREEN
120 V AC
120 V AC
240 V AC
2903-00-019
240 V AC (L1-L2)
GREEN
GROUND (to receptacle
box or ground terminal)
AC BYPASS BOX
Figure 24B
AC Input/Output UtilitySub-panel Wiring for 120240 V ac Circuits (Dual Inverter Models)
AC Input/Output Wiring to Utility and Sub-panel (continued)
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