GE Industrial Solutions LP11 924 Series 6 & 10 kVA - Manual (Page 18)

modifications reserved
OPM_LPU_11U_6K0_10K_1US_V010.Doc 17 User manual LP11 924 6 & 10 kVA UPS 1.0
4.5.2 - AVAILABLE INPUT VOLTAGES: HARDWARE MODIFICATIONS
4.5.2.1 - INPUT VOLTAGE 120VAC OR 277VAC.
1. If input voltage is 120/277VAC, the utility supply wires should be connected to input terminals provided on bottom
transformer cabinet (11b in Fig.20). The transformer will convert the utility voltage (120/227VAC) to 240VAC. This
240VAC is connected to input terminals of UPS 6, 7, 8 (11b in Fig.19).
2. The bypass tap setting should be set as 240VAC. To confirm this check the following as per fig.8 and 8a.
2.1. Yellow wire B to should be connected to faston 72 (park) on Printed Circuit Board (PCB) part 1113-D.
Blue wire A to should be connected to faston 74 (connect) on PCB part 1113-D.
3. Connect the utility supply wires to terminals L, N and GND (equipment grounding conductor). See figure 9. Ground
connection is essential!
4. For the output voltage proceed with section 4.5.3.
Bypass tap setting: 208 Volt Bypass tap changed to 240 Volt
Figure 8. LP11 924 6&10 kVA: Bypass tap change
Figure 8a. LP11 924 6&10 kVA: Rear view
Figure 9. LP11 924 6&10 kVA:
120 or 277Vac Input terminals
(park)
(park)
(connect)
(park)
(park)
(connect)