GE Optima CT670, Installation Manual

Page: 161 / 206

GE C
OMPANY
D
IRECTION
5472001-1EN, R
EVISION
6 O
PTIMA
CT680 S
ERIES AND
O
PTIMA
CT670 I
NSTALLATION
M
ANUAL
Chapter 4 - System Covers: Installation & Alignment Page 161
4
- Con
tinui
ty Checks
6.5 Suite Emergency Off Checks
WARNING ONLY PERFORM THIS PROCEDURE IF YOU ARE USING PROPER PPE. 480 VOLTS
MAYBE PRESENT. VERIFY ALL PERSONNEL HAVE CLEARED THE SYSTEM
BEFORE YOU TURN ON WALL POWER.
1.) Turn wall power ON to the PDU.
Note: Do not stand in front of the main disconnect to turn on power.
2.) Press the suite emergency off button and verify it turns off wall power to the PDU.
(Typically, this red palm button is located on the wall close to the console, within the scan
suite.)
3.) Verify that all "Emergency Off" buttons are working properly.
4.) Leave power "OFF".
6.6 Line Transformer Settings
6.6.1 Requirements
WARNING MAKE SURE YOU TURNED OFF, TAGGED AND LOCKED THE MAIN WALL POWER
BEFORE YOU CHANGE TAPS. FAILURE TO DISCONNECT POWER AT MAIN INPUT
MAY RESULT IN ELECTROCUTION. TURN OFF WALL POWER TO CONNECT OR
MOVE METER LEADS, OR TO REMOVE OR INSTALL COVERS. WEAR
APPROPRIATE ELECTRICAL PPE.
6.6.2 Line Input Conditions
1.) Monitor the No Load Line to Line Voltage at L1, L2, L3, during the workday. Do not record this
data during "brown out" conditions.
2.) After you determine the nearest nominal line, verify the tap connections match (refer to
Table 4-1 and Figure 4-23 for tap locations).
Figure 4-23 PDU Tap Positions (Rear)
Note: Taps should be shipped as shown for 480 VAC only. For all others, you must move the taps.
The tap check should be completed by the mechanical installer.
3.) Verify that the No Load Line to Line Voltage never falls outside the corresponding minimum
and maximum values listed in Table 4-1 .
Signed Date
TAG
&
LOCKOUT
1.) The PDU is shipped configured for 480VAC.
2.) Complete only if your site uses a voltage other than 480VAC.
3.) If PDU is configured for 480VAC, go to
6.7 . Otherwise, proceed to Section 6.6.2 .
Signed Date
TAG
&
LOCKOUT
H3 H2 H1
2 4 5 6 3
1
2 4 5 6 3 1 2 4 5 6 3 1
Transformer Taps and Jumpers
High Voltage Transformer