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| 5.0 installation
5.4 Connect Input/Output Power
The UPS should arrive with the power distribution box attached. if the box needs to be removed for maintenance or
replacement, follow these instructions to remove and install the power distribution box.
NOTE:
Do not operate the UPS with the power distribution box removed. To shut off all power to this box and to the load,
the main input power must be disconnected.
To remove the power distribution box:
1.
Put the UPS in maintenance bypass by pressing the Standby/Manual Bypass button once (hold it for about 2 seconds)
while the UPS is in Mains (Ac) Mode. For help, refer to “8.4 Put the UPS in Manual Bypass”.
2.
Loosen one captive screw over the maintenance bypass breaker (see Figure 16 for the breaker’s location).
3.
Turn the maintenance bypass breaker on.
NOTE:
The load is unprotected from disturbances in the power supply while the UPS is on bypass.
4.
Turn the output and input breakers off.
5.
Loosen other captive screws until the power distribution box releases.
6.
remove the power distribution box from the UPS and set it aside.
7.
Loosen the screws over the plastic cover for the connector on the rear of the panel.
8.
Slide the plastic cover over the connector and tighten the screws.
Extract these captive screws
Maintenance bypass breaker
Figure 16: Power distribution box removal
To install the power distribution box:
1.
Align the connectors and press the power distribution box onto the UPS.
2.
Hold the box firmly against the UPS and tighten the captive screws, except the one over the maintenance bypass
breaker.
3.
Turn the output and input breakers on.
4.
Start the UPS according to startup instructions.
5.
Verify that the UPS lamp is illuminated.
6.
Turn the maintenance bypass breaker off.
7.
insert the maintenance bypass cover behind the captive screw and tighten the screw.
NOTE:
The maintenance bypass breaker cover must be installed behind the captive screw and the screw must be
tightened for the UPS to operate in inverter Mode.
