Best Unity/I UT3100, Руководство по установке

Страница: 34 / 38

UT340, UT360, UT380, and UT3100
Planning and Installation Manual
30
501 Shutdown Procedure for Units
with a BEST-Supplied Rotary Switch MBC
1. If you have shut the loads down: Skip to step 3.
If the loads are to remain powered: Program the unit into static bypass operation:
a. Press to access the user parameters.
b. Press the or key until the display shows
Bypass operation: OFF
.
c. Press to turn static bypass operation on. The display should show
Bypass
operation
.
2. Switch the UPS bypass switch to “BYPASS.”
3. Press the red “off” button located inside the UPS front door.
4. Switch the UPS AC disconnect switch “OFF.”
5. Switch the DC disconnect (DCD) “OFF.”
6. Turn the pre-charge/discharge switch to the discharge position and hold it until the LED
turns off. The UPS display should now be blank.
To restart the unit, see Section 601 , “Startup from Maintenance Bypass for Units with a
BEST-Supplied Rotary Switch MBC.”
7. (Optional) If the loads are not to be powered, turn off all AC power sources to the UPS
and maintenance bypass cabinet (MBC).
502 Shutdown Procedure for Units
with a BEST-Supplied Three-Breaker MBC
1. If you have shut the loads down: Skip to step 4.
If the loads are to remain powered: Program the unit into static bypass operation:
a. Press to access the user parameters.
b. Press the or key until the display shows
Bypass operation: OFF
.
c. Press to turn static bypass operation on. The display should show
Bypass
operation
.