Eaton 9355 Installation And Operation Manual

UPS Maintenance
Eaton 9355 UPS (20/30kVA) Installation and Operation Manual 164201626—Rev F www.eaton.com/powerquality 81
Single UPS Bypass
To transfer the load from the UPS to maintenance bypass:
1. Remove the UPS front door (see page 10).
2. From any UPS, set the system to internal Bypass mode:
l
Using the button on the front panel display, scroll to the Control menu option and press the button.
l
Press the button to select the Go to Bypass Mode option.
The indicator illuminates and the indicator extinguishes, indicating the UPS system is operating
in Bypass mode.
3. Turn the maintenance bypass switch to the BYPASS position.
The input and battery circuit breakers trip, and the UPS is now bypassed, with the load powered by utility
power.
4. The UPS automatically shuts down.
Rear fan is running signifying load is being supplied utility power on bypass.
5. If present, switch the UPS output circuit breaker to the OFF position
6. Replace the UPS front door.
To transfer the load from maintenance bypass to the UPS:
1. Remove the UPS front door (see page 10).
2. Turn the maintenance bypass switch to the SERVICE position.
The UPS starts up in Bypass mode, with the load still powered by utility power.
3. Verify all six fans on front start up.
Note: Wait until the indicator illuminates (approximately two minutes ) before proceeding to Step 6;
otherwise, power to the load may be lost.
4. Switch the UPS input and battery circuit breakers to the ON position.
5. If present, switch the UPS output circuit breaker to the ON position
6. Turn the maintenance bypass switch to the UPS position to return to Normal mode.
7. Verify the rear fan is running.
The UPS is now powering the load.
8. Replace the UPS front door.

Eaton 9355 Specifications

General

Efficiency	91 %
Noise level	58 dB
Output power	27000 W
Input frequency	50/60 Hz
Audible alarm(s)	Yes
Input power factor	0.99
Output power factor	0.9
Output power capacity	30 kVA
Input operation voltage (min)	220 V
Input current Total Harmonic Distortion (THD)	5 %
RS-232 ports	1
AC outlet types	-
AC outlets quantity	- AC outlet(s)
Safety	IEC 62040-1-1, IEC 60950, EN 62040-1-1, UL 1778, NOM-0190SCP8-1993
Form factor	Tower
Display type	LCD
Certification	EN 50091-2 Class A\\r UL, cUL, NOM-NYCE
Product color	Black
Battery technology	Sealed Lead Acid (VRLA)
Typical backup time at half load	- min
Operating altitude	0 - 3000 m
Storage temperature (T-T)	0 - 25 °C
Operating temperature (T-T)	10 - 40 °C

Weight and Dimensions

Depth	866.14 mm
Width	508 mm
Height	1676.4 mm