Xantrex Technology ACCB-L-L1 manual Dual Inverters 240 Vac Loads, AC Input/Output Off

Operation

AC Input/Output Off

No power to the load or inverter (Figure 3-4).

In this configuration, power from both the external sources of AC and the inverter is removed from the loads. This allows the inverter that is connected to the AC Bypass breaker to be removed for service.

‘

AC Input from Grid or Gen

ON	ON
60	60
OFF	OFF

INVERTER	INVERTER
Bypass 1	DISCONNECT 1
on to bypass	on for normaloperation

BOTH OFF TO DISCONNECT AC OUTPUT

Both external AC source and the Inverter are OFF

AC Output to Loads

Figure 3-4AC Output OFF

Dual Inverters: 240 Vac Loads

WARNING: Fire Hazard

In a series-stacked, inverter installation (120/240 Vac) with an AC Bypass switch for each inverter, both AC Bypass switches must be in the same position.

If the AC Bypass switches are not in the same position, the resulting AC output of the two AC Bypass switches may not be 180° out-of-phase from each other. This can result in excess current on the neutral wire creating a potential fire hazard.

This can also result in less than 240 Vac output. Loads requiring 240 Vac will not run.

Some 240 Vac equipment may also be damaged if one AC “leg” is lost.

3–4 973-0031-01-01 Rev A