Liebert PPC User Manual - Vertiv
Liebert PPC Second Generation Power Conditioning and Distribution Cabinet User Manual—Three-Phase, 15 - 225kVA, 50 & 60Hz
The information contained in this document is subject to change without notice and may not be suitable for all applications. While every precaution has been taken to ensure the accuracy and completeness of this document, Vertiv assumes no responsibility and disclaims all liability for damages resulting from use of this information or for any errors or omissions. Refer to other local practices or building codes as applicable for the correct methods, tools, and materials to be used in performing procedures not specifically described in this document. The products covered by this instruction manual are manufactured and/or sold by Vertiv This document is the property of Vertiv and contains confidential and proprietary information owned by Vertiv. Any copying, use or disclosure of it without the written permission of Vertiv is strictly prohibited. Names of companies and products are trademarks or registered trademarks of the respective companies. Any questions regarding usage of trademark names should be directed to the original manufacturer. Technical Support Site If you encounter any installation or operational issues with your product, check the pertinent section of this manual to see if the issue can be resolved by following outlined procedures. Visit https://www.VertivCo.com/en-us/support/ for additional assistance.
TABLE OF CONTENTS IMPORTANT SAFETY INSTRUCTIONS . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1 1.0 INSTALLATION INSTRUCTIONS . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2 1.1 Unpacking and Installation . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2 1.1.1 1.1.2 1.1.3 1.1.4 1.1.5 1.2 Distribution Sidecar Mounting and Wiring . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 9 1.2.1 1.2.2 1.3 Unpacking and Preliminary Inspection . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2 Handling Considerations . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2 Unit Preparation . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 6 Location Considerations . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 6 Floor Pedestal Installation . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 8 Sidecar Mounting. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 9 Sidecar Electrical Connections . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 9 Power and Control Wiring. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 9 1.3.1 1.3.2 1.3.3 1.3.4 1.3.5 1.3.6 1.3.7 Input Power Connections. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 10 Junction Box Installation (If Used) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .20 System Grounding. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 22 Grounding Electrode Conductor (Units With Transformer) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 22 Output Power Connections. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .24 Control Wiring Connections . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .26 Adapter Board . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .30 2.0 EQUIPMENT INSPECTION AND STARTUP . . . . . . . . . . . . . . . . . . . . . . . . . . . . 31 2.1 2.2 Internal Inspection . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 31 Startup. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 31 3.0 INSPECTION AND STARTUP CHECKLIST . . . . . . . . . . . . . . . . . . . . . . . . . . . . .33 3.1 3.2 3.3 3.4 Inspection. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .33 Startup. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .34 Monitoring System Check-Out . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .35 Equipment Connection Check-Out (For Units With Distribution Cables). . . . . . . . . . . . . . .36 4.0 OPERATING INSTRUCTIONS . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .37 4.1 Startup Procedures . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 37 4.1.1 4.1.2 4.1.3 4.1.4 Emergency Shutdown . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 37 Normal System Shutdown . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 37 Normal System Turn ON. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 37 Manual Restart . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 37 4.2 Basic Monitor Panel. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .38 4.3 4.4 4.5 Power Monitor Panel. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .39 Liebert Current Plus Monitoring (If Supplied) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 41 Liebert Distribution Monitoring (If Supplied) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .43 5.0 MAINTENANCE . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 45 5.1 5.2 Corrective Maintenance . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .45 Preventive Maintenance (Inspection and Cleaning) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .45 4.2.1 Vertiv Display Controls and Indicators . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .38 Liebert PPC User Manual i
FIGURES Figure 1 Figure 2 Figure 3 Figure 4 Figure 5 Figure 6 Figure 7 Typical cabinet and floor planning dimensions, sidecar . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3 Typical cabinet and floor planning dimension data . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4 Typical cabinet and floor planning dimension data, top exit unit. . . . . . . . . . . . . . . . . . . . . 5 Recommended minimum service and ventilation clearances . . . . . . . . . . . . . . . . . . . . . . . . 7 Floor pedestal details . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 8 Electrical connection locations, sidecar unit . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 11 Electrical connection location for 72-pole Square D or 54-pole GE panelboards, 32" cabinet, bottom entry/exit. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 12 Figure 8 Electrical connection locations, for 54-pole Square D or 42-pole GE panelboard, 32" cabinet, bottom entry/exit. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 13 Figure 9 Electrical connection location for 72-pole Square D or 54-pole GE panelboard, 44" cabinet, bottom entry/exit. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 14 Figure 10 Electrical connection locations, 54-pole Square D or 42-pole GE panelboard, 44" cabinet, bottom entry/exit. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 15 Figure 11 Electrical connection location for 54-pole Square D or 42-pole GE panelboard, 32" cabinet, top entry/exit . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 16 Figure 12 Electrical connection location for 72-pole Square D or 54-pole GE panelboard, 44" cabinet, top entry/exit . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 17 Figure 13 Typical junction box connections . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 21 Figure 14 Typical grounding arrangements. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .23 Figure 15 Typical Liebert PPC equipment arrangement . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .25 Figure 16 Simplified shutdown circuit . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .26 Figure 17 Typical control wiring for units without monitoring . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 27 Figure 18 Typical control wiring for units with power monitoring. . . . . . . . . . . . . . . . . . . . . . . . . . . . . .28 Figure 19 Control wiring for units without low-voltage control box. . . . . . . . . . . . . . . . . . . . . . . . . . . .29 Figure 20 Liebert PPC controls and indicators . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .38 TABLES Table 1 Table 2 Table 3 Table 4 Table 5 Table 6 Table 7 Table 8 Table 9 Table 10 Table 11 Vertiv Heat output . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 7 Suggested minimum input wire size data . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 18 Main input circuit breaker interrupting rating . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 19 Main input junction box with transformer electrical connections . . . . . . . . . . . . . . . . . . .20 Main input junction box without transformer electrical connections (5 wire) . . . . . . .20 Main input (power) junction box dimensions, typical . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .20 Minimum grounding electrode conductor size (AWG) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .22 Panelboard main circuit breaker torque specifications. . . . . . . . . . . . . . . . . . . . . . . . . . . . . .32 Branch circuit breaker torque specifications . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .32 Terminal block compression lug torque specifications. . . . . . . . . . . . . . . . . . . . . . . . . . . . . .32 Torque specifications, general . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .32 Liebert PPC User Manual ii
Vertiv Liebert PPC User Manual iii
Vertiv Liebert PPC User Manual iv
IMPORTANT SAFETY INSTRUCTIONS Read this entire manual before installing or operating the system. WARNING Risk of cutting bands under tension. Can cause injury or death. The shipping bands may be under tension. Use appropriate eye, face and hand protection to safeguard against injury from band backlash. WARNING Risk of electric shock. Can cause injury or death. Verify that all incoming line voltage (power) and low-voltage (control) circuits are de-energized and locked out before installing cables or making connections, whether in the junction box or in the unit. Equipment inspection and startup should be performed only by trained personnel. Lethal voltages are present during startup procedures. Electrical safety precautions must be followed throughout inspection and startup. Only properly trained and qualified service personnel should perform maintenance on the Liebert PPC. All voltage sources to the unit must be disconnected before inspecting or cleaning within the cabinet. Lethal voltages exist within the equipment during operation. Observe all warnings and cautions in this manual. Failure to comply may result in serious injury or death. Obtain qualified service for this equipment as instructed. The monitoring system contains a lithium battery for memory backup. Danger of explosion if battery is incorrectly replaced. Replace only with same or equivalent type. Dispose of used batteries according to manufacturer’s instructions. WARNING Risk of electric shock. Can cause injury or death. All power and control wiring should be installed by licensed electricians and must comply with the NEC and applicable codes. WARNING Risk of improper handling. Can cause equipment damage, injury or death. The Liebert PPC is heavy; its weight ranges from 400lb. (182kg) to 2450lb. (1111kg) The unit should not be loosened from the shipping pallet until after all handling by forklift or pallet jack is completed ELECTROMAGNETIC COMPATIBILITY—The Liebert PPC complies with the limits for a Class A digital device, pursuant to Part 15 of FCC rules. Operation is subject to the following conditions: This device may not cause harmful interference. This device must accept any interference received, including interference that may cause undesired operation. Operating this device in a residential area is likely to cause harmful interference that users must correct at their own expense. Vertiv Liebert PPC User Manual 1
The Liebert PPC complies with the requirements of EMC Directive 2014/30/EU and the published technical standards. Continued compliance requires installation in accordance with these instructions and use of accessories approved by Vertiv. Vertiv Liebert PPC User Manual 2
1.0 1.1 INSTALLATION INSTRUCTIONS Unpacking and Installation NOTE Read the entire manual before installing and operating the system. Upon receipt of a Liebert PPC, the installer should perform the following steps to ensure a high-quality installation. 1.1.1 Unpacking and Preliminary Inspection A high-quality installation begins on the receiving dock. 1. 2. 3. Inspect for damage or signs of mishandling before unpacking the unit(s). Check the Shock-Watch indicator. If the Liebert PPC was shipped in an export crate, open the shipping crate carefully. (Use care to avoid puncturing the container with sharp objects that would damage the contents.) Remove the packing and vapor barrier and inspect the equipment for any obvious shipping damages. NOTE The units should not be loosened from the shipping pallet until after all handling by fork lift or pallet jack is completed. Complete internal inspection should be accomplished only after equipment positioning and prior to electrical hookup. If any shipping damage is observed, immediately file a damage claim with the shipping agency and forward a copy to: Vertiv Corporation 1050 Dearborn Drive P.O. Box 29186 Columbus, Ohio 43229 USA 1.1.2 Handling Considerations The Liebert PPC is bolted to a wooden pallet to allow handling by fork lift equipment. Moving—The Liebert PPC sits on casters that allow the unit to be rolled into place after it has been unbolted from the pallet. Check size and weight—Refer to the cabinet drawings furnished with the unit for size and weight information. Typical cabinet dimensions and weights are shown in Figures 1 and 2. Plan the route—The route that the unit will follow to its installation area should be planned to ensure that all passages are large enough to accommodate the unit, and that the floors are adequate to support the weight. (For example: Are the doorway, elevators, ramps, etc., adequate? Are there any non-negotiable corners or offsets in the hallways?) Move with care—To prevent panel damage, Vertiv recommends removing the exterior panels before moving the unit. Reconnect all panel ground wires when replacing panels. Vertiv Liebert PPC User Manual 3
Figure 1 Vertiv Typical cabinet and floor planning dimensions, sidecar Liebert PPC User Manual 4
32" (813 mm) 20" (508mm) Overall Dimension Clearance of 18" (457mm) above unit is recommended for cooling airflow . Clearance of 6" (152mm) below unit is recommended for cooling airflow and cable exit . Shaded areas indicate recommended clearance of 42" (1067mm) at front and one other side for service access. 77" (1959mm) The Liebert EXC weighs 300 lb. Cutout area for cable exit and cooling airflow . 1" (25.4mm) 18" (457mm) Unit Base 30" (762 mm) Unit Base 7" (178mm) Cabinet Dimensions 10" (254 mm) 18" (457 mm) 30" (762mm) 23-7/8" (733 mm) 1-14" (32mm) 4" (102mm) 18" (457mm) 22" 12" (559mm) (305mm) 30" (762mm) 2" (50mm) Footprint and Floor Cutout Dimensions 1/2" (13mm) Unit Base Outline 9/16" (14mm) Dia. Holes Floor Pedestals Available from 6"-19" (152mm to 483mm) 6" (152mm) Optional Floor Pedestals 2-1/4" (57mm) Liebert PPC User Manual Pedestal Footprint 2-1/4" (57mm) 3/4" (19mm) 2-1/4" (57mm) Vertiv 6" (152mm) 3/4" (19mm) 5
Figure 2 Typical cabinet and floor planning dimension data Weight, lb. (kg) CABINET Footprint and Floor Cutout Dimensions Unit kVA 60 Hz 50 Hz Without Xfmr 15 650 (295) 700 (318) 400 (182) 30 750 (340) 800 (363) 400 (182) 50 898 (408) 925 (420) 400 (182) 75 1115 (507) 1150 (522) 400 (182) 100 1275 (579) 1400 (635) 450 (204) 125 1450 (658) 1575 (715) 450 (204) 150 1789 (813) 1900 (862) 700 (318) Optional Floor Pedestals Dimensions, in. (mm) Unit kVA No. of Panelboards A B C D E F 15 to 125 1 32 (813) 30 (762) 18 (457) 15 (381) 17 (432) 29 (737) 150 to 225 2 44 (1118) 42 (1067) 30 (762) 27 (686) 29 (737) 41 (1041) Vertiv Liebert PPC User Manual 6
Figure 3 Typical cabinet and floor planning dimension data, top exit unit Unit kVA Weight, lb. (kg) 15 650 (295) 30 750 (340) 50 950 (432) 75 1165 (530) 100 1325 (601) 125 1500 (680) 150 1789 (813) 200 2110 (959) 225 2353 (1070) CABINET DIMENSIONS Footprint Dimensions Dimensions, in. (mm) Unit kVA No. of Panelboards A B 15-125 1 32 (813) 30 (762) 150-225 1 44 (1118) 42 (1067) Vertiv Liebert PPC User Manual 7
1.1.3 Unit Preparation The Liebert PPC may be removed from the shipping pallet and installed by customer personnel. A typical procedure is: 1. 2. Set the palletized assembly in a level area, where there is enough room to roll the unit and entire cable assembly off the pallet onto the floor. Cut the shipping bands. WARNING Risk of cutting bands under tension. Can cause injury or death. The shipping bands may be under tension. Use appropriate eye, face and hand protection to safeguard against injury from band backlash. 3. 4. 5. 6. 7. 8. Remove the factory-provided ramp from its shipping position—packed in front of the unit. Place the ramp adjacent to the pallet to provide a smooth path from pallet to floor. Remove side and rear panels from the module. An Allen wrench for the side panels is furnished in the installation packet. (Carefully disconnect panel ground wires by pulling the easy-disconnect terminals at the unit frame.) Remove the bolts holding the unit to the shipping pallet. (Located in each of the four bottom corners.) Remove shipping blocks from under unit, then remove chocks from all casters. Roll unit off pallet onto floor. Roll unit to its installation location. For units located on a raised floor, use care when positioning unit over the floor cutout to avoid casters falling through the cutout. NOTE Before maneuvering the unit into its final position, read and follow all advisories in the following paragraphs in 1.1.4 - Location Considerations. 1.1.4 Location Considerations The Liebert PPC should be located within the computer room, and/or close to the load(s) which it is supplying. Equipment Location—Should employ the shortest output distribution cable runs consistent with logical equipment arrangement and allowances for future additions. Operating Environment—Ambient temperatures of 32 F to 104 F (0 C to 40 C) with a relative humidity of 0% to 95% (non-condensing). Bottom Clearance—Required for exit of cables/conduit and/or for cooling air flow. This clearance is automatically provided by a raised floor (6 in. / 150 mm minimum height). Figures 1 and 2 show typical raised-floor cutout dimensions. When units are not located on a raised floor (or if the raised floor is not adequate to support the unit), optional floor pedestals may be used. (Non-raised floor applications are not CSA approved.) Units with top cable exit provisions and side vents do not require bottom clearance. Recommended Minimum Service Clearances—Shown in Figure 4. The indicated clearances at the front and one other side or rear of the unit are required for service access by the National Electrical Code (NEC) (Article 110-26). Clearance above the unit is required for cooling air flow (exhaust). Heat Output—As do all electrical devices, the Liebert PPC produces heat under normal operation. (See Table 1.) This heat output should be included when calculating the environmental conditions of the room. Vertiv Liebert PPC User Manual 8
Figure 4 Recommended minimum service and ventilation clearances 18 in. (457mm) minimum clearance above unit for cooling air flow See Note 2 ADDITIONAL ACCESS ON EITHER SIDE OR THE REAR OF UNIT - see Notes 1 and 2 See Note 2 See Note 2 FRONT ACCESS REQUIRED 6 in. (152 mm) minimum clearance below unit for bottom cable exit NOTES: 1. Service access is required at the front, plus one other side or rear. 2. Service access clearance: 36 in. (914 mm) for units up to 150 volts to ground 42 in. (1067 mm) for units over 150 volts to ground Table 1 Heat output Full Load Heat Output, BTU/hr (kW) kVA BTU/hr (kW) 15 1915 (0.56) 30 3995 (0.88) 50 4360 (1.28) 75 6140 (1.80) 100 7680 (2.25) 125 9460 (2.77) 150 10,660 (3.13) 200 13,930 (4.08) 225 15,350 (4.45) Vertiv Liebert PPC User Manual 9
1.1.5 Floor Pedestal Installation Floor pedestals are optional equipment intended to provide clearance for bottom cable entry without relying on a raised floor to support the unit. The pedestals are adjustable over approximately 3-1/2 in. (89mm) to allow leveling the unit and minor adjustments in the unit’s installed height. NOTE Floor pedestals may be reverse-assembled for shipping. Before installation, reassemble the pedestals as shown in Figure 5. When the pedestal is properly assembled, the washer on top of the welded nut provides a bearing surface for the unit’s weight. 1. 2. 3. Insert the pedestal threaded shaft into the inside corner tubing of the cabinet base as shown in Figures 1 and 2. Adjust the pedestal height by turning the welded nut/shaft assembly into or out of the pedestal base as required. Lock the height by tightening the jam nut against the pedestal base. The pedestal may be secured to the floor by means of the four holes in the base. Locations of floor pedestals are shown in Figures 1 and 2. Vertiv Liebert PPC User Manual 10
Figure 5 Floor pedestal details Threaded Shaft 3" (76mm) Washer Welded Nut Jam Nut Pedestal Base 9/16" (14mm) diameter mounting holes 2-1/4" (57mm) 6" (152mm) square 2-1/4" (57mm) 2-1/4" (57mm) 1.2 2-1/4" (57mm) Distribution Sidecar Mounting and Wiring For Liebert PPC units with more than two panelboards, the additional panelboards are furnished in side-mounted enclosures that are shipped separate from the main unit. 1.2.1 Sidecar Mounting The additional distribution sidecar is 18 in. x 30 in. (457x762mm) and can be mounted on either the left or right side of the main unit, with left side mounting recommended. Vertiv Liebert PPC User Manual 11
1. 2. 3. 4. 5. 6. Provide a floor cutout for exit of output cables, as shown in Figure 1. Remove the side panel, the upper panel retainers and the lower panel hooks from the main unit. Align the distribution sidecar with the main unit and bolt the two frames together using the four bolts and hardware provided. If floor pedestals are used for the main unit, two additional floor pedestals are required for the outside corners of the sidecar. See Figure 1. Install the upper panel retainers and lower panel hooks on the sidecar enclosure. After electrical connections are completed, install the unit side panel on the sidecar. 1.2.2 Sidecar Electrical Connections Five conductors (3-phase conductors, neutral and ground) are furnished with the distribution sidecar for connection to the main unit in the field, along with an intercabinet frame ground conductor. For Liebert PPC’s with transformers, the sidecar phase conductors are connected directly to the transformer terminals: Phase A (wire 412) to X1 Phase B (wire 422) to X2 Phase C (wire 432) to X3 The sidecar neutral (Wire 442) and ground (Wire 452) conductors are connected to the Liebert PPC main ground busbar (see unit wiring diagram). For Liebert PPC’s without transformers, the sidecar phase and neutral conductors are connected to the corresponding output power distribution terminal blocks inside the main unit. The sidecar ground conductor is connected to the main ground busbar. For all Liebert PPC’s with VPMP monitoring, route each sidecar conductor through the appropriate current transformer (CT) in the main unit. NOTE Sidecar conductors must pass through the current transformers in the same direction as the main unit panelboard conductors. Use the existing main unit panelboard wiring for reference. 1.3 Power and Control Wiring Power and control wiring should be installed by licensed electricians. All power and control wiring must comply with the NEC and applicable local codes. Vertiv Liebert PPC User Manual 12
1.3.1 Input Power Connections If the unit is furnished with junction boxes, input power connections are made as detailed in 1.3.2 Junction Box Installation (If Used). If junction boxes are not furnished, the input power feeder is connected to the input power lugs or blocks located inside the unit. (See Figures 6, 8, and 10.) WARNING Risk of electric shock. Can cause injury or death. Verify that all incoming line voltage (power) and low-voltage (control) circuits are de-energized and locked out before installing cables or making connections, whether in the junction box or in the unit. To minimize disturbances caused by other loads in the building, the 3-phase power input to the unit should be supplied directly from the service entrance or other power source (a dedicated power feeder). The input feeder circuit should be sized in accordance with the NEC and any local building codes to assure the feeder’s ability to safely carry the system’s full load current, including losses. Input feeder conductors should be sized for no more than 2% voltage drop. If operation at undervoltage conditions for extended periods of time is desired, the input feeders must be oversized. Typical conductor size data is shown in Table 2. All connections must comply with the NEC and all other applicable codes. For units with a transformer, the main input feeder should consist of 3-phase conductors and one (safety) ground conductor (3W G). For units without a transformer, the main input feeder must consist of 3-phase conductors, one neutral and one (safety) ground conductor (4W G). Vertiv Liebert PPC User Manual 13
Figure 6 Electrical connection locations, sidecar unit Neutral Connections Distribution Cables Neutral(s) connected to distribution panelboard neutral busbar Interconnection Wiring provided by factory Panelboard Main Circuit Breaker Factory-Wired NOTES 1. The unit bolts to the main Liebert Precision Power Center. See installation manual for instructions. 2. Site panel is taken from the Liebert PPC and installed to either the left or right side of the unit. Distribution Panelboard Ground Connections Distribution Cable Ground(s) connected to distribution panelboard ground busbar Distribution Cable Conduit Connection Cable Tray 1-3/32" (27.8mm) holes for 3/4" conduit fittings and 7/8" (22.2mm) holes for 1/2" conduit fittings provided for securing optional distribution cables FRONT VIEW WITH DOOR OPEN AND PANEL REMOVED Vertiv Liebert PPC User Manual PPC15010 Rev. 2 14
Figure 7 Vertiv Electrical connection location for 72-pole Square D or 54-pole GE panelboards, 32" cabinet, bottom Liebert PPC User Manual 15
entry/exit PPC15100 Rev. 0 Vertiv Liebert PPC User Manual 16
Figure 8 Vertiv Elec
The Liebert PPC is bolted to a wooden pallet to allow handling by fork lift equipment. Moving—The Liebert PPC sits on casters that allow the unit to be rolled into place after it has been unbolted from the pallet. Check size and weight—Refer to the cabinet drawings furnished with the unit for size and weight information.
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