Eaton Powerware 9170+ - Page 77

UPS STARTUP
EATON Powerware
®
9170
+
UPS (3–18 kVA) User’s Guide S 164201393 Rev C www.powerware.com
71
7. Plug the equipment to be protected into the UPS output
receptacles. Turn on the equipment that is connected to the UPS.
NOTE DO NOT protect laser printers with the UPS because of the exceptionally high power
requirements of the heating elements.
NOTE The total volt-ampere load must not exceed the volt-ampere rating of the entire
cabinet. Failure to balance the loads may cause an overload alarm even if the full capacity of
the UPS has not been reached.
For Powerware 9170
+
UPS models with low-voltage output
receptacles, it is recommended to divide loads between upper and
lower receptacles as equally as possible. (In some configurations,
each set of receptacles is limited to one half of the total UPS
capacity.) Whether the cabinet has one panel containing eight
receptacles, two panels containing 16 receptacles, or three panels
containing 24 receptacles, you should try to supply half of the UPS
output through the upper half of the receptacles (X1) and the other
half through the lower half of the receptacles (X2), as shown in
Figure 51.
X1
X2
X1
X2
Figure 51. Balancing Receptacle Loads
NOTE The factory-default wiring for all high-voltage receptacles in a chassis without a
power cord is 3-wire plus ground input. If you have a universal power module (ASY-0674), all
receptacles MUST be re-wired for a 2-wire plus ground input configuration as shown in
Figure 20 on page 30.