Precision Cooling For Business-Critical Continuity™ Liebert® Xtreme Density™ System Design Manual
TABLE OF CONTENTS 1.0 SYSTEM DESCRIPTION . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .1 1.1 1.2 1.3 1.4 1.5 1.6 1.7 1.8 1.9 European Union Fluorinated Greenhouse Gas Requirements . . . . . . . . . . . . . . . . . . . . . . . . Generic Piping Layouts . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . Liebert XDA—Air Flow Enhancer. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
3.19 Determining Refrigerant Volume . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 39 3.19.1 Liebert XDP/Liebert XDC Pumped R-134a Circuit Volume . . . . . . . . . . . . . . . . . . . . . . . . . . 39 3.19.2 Calculating Refrigerant R134a Charge—Example. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 41 3.19.3 Liebert XDC DX R-407c Circuit Volume . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 41 3.20 3.
FIGURES Figure 1 Figure 2 Figure 3 Figure 4 Figure 5 Figure 6 Figure 7 Figure 8 Figure 9 Figure 10 Figure 11 Figure 12 Figure 13 Figure 14 Figure 15 Figure 16 Figure 17 Figure 18 Figure 19 Figure 20 Figure 21 Figure 22 Figure 23 Figure 24 Figure 25 Figure 26 Figure 27 Figure 28 Figure 29 Figure 30 Figure 31 Figure 32 Figure 33 Figure 34 Figure 35 Figure 36 Figure 37 Figure 38 Figure 39 Figure 40 Figure 41 Figure 42 Figure 43 Figure 44 Figure 45 Figure 46 Figure 47 Figure 48 Liebert XDP generic piping layou
Figure 49 Figure 50 Figure 51 Figure 52 Figure 53 Figure 54 Figure 55 Figure 56 Figure 57 Figure 58 Figure 59 Figure 60 Figure 61 Figure 62 Figure 63 Figure 64 Figure 65 Figure 66 Figure 67 Figure 68 Figure 69 Figure 70 Figure 71 Figure 72 Figure 73 Figure 74 Figure 75 Figure 76 Figure 77 Figure 78 Figure 79 Figure 80 Figure 81 Figure 82 Figure 83 Liebert XDR dimensions with hard-piped connections. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Table 12 Table 13 Table 14 Table 15 Table 16 Table 17 Table 18 Table 19 Table 20 Table 21 Table 22 Table 23 Table 24 Table 25 Table 26 Table 27 Table 28 Table 29 Table 30 Table 31 Table 32 Table 33 Table 34 Table 35 Table 36 Table 37 Table 38 Table 39 Table 40 Table 41 Table 42 Table 43 Table 44 Table 45 Table 46 Table 47 Table 48 Table 49 Five-port prefabricated piping legend . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
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System Description 1.0 SYSTEM DESCRIPTION The Liebert XD™ family of cooling units delivers efficient, sensible cooling to high-heat environments. Liebert XD systems are designed to cool computer racks and hot zones in a data center or computer room without taking up expensive floor space for cooling components.
System Description 1.2 Generic Piping Layouts Liebert XD systems are available in two configurations—differentiated essentially by the method of heat rejection (see Figures 1 and 2). The Liebert XDP is a pumping unit connected to a building chilled water system to control and circulate the refrigerant.
System Description 1.3 Liebert XDA—Air Flow Enhancer The Liebert XDA is a fan unit that boosts the airflow through densely populated enclosures, removing hot spots from within the racks. One or two units can be mounted on the rear of most rack enclosures.
System Description 1.4 Liebert XDCF—Liebert XD CoolFrame The Liebert XDCF is a self-contained module designed to cool Egenera’s BladeFrame EX cabinets and equipment without exhausting heat into the room. Two modules (top and bottom) may be mounted on the rear of a BladeFrame cabinet. Liebert XDCF modules consist of a sheet-metal frame, coil and filter dryer. It has no moving parts and needs no electricity.
System Description 1.5 Liebert XDH—Horizontal Cooling Module The Liebert XDH is designed for placement within a row of computer cabinets in the data center in a hot-aisle-cold-aisle arrangement to maximize the Liebert XDH’s cooling. The Liebert XDH, available in a half-rack-width unit (12" [305mm]), is intended for use with a Liebert XD pumped refrigerant cooling system, supplied by either a Liebert XDP or Liebert XDC.
System Description 1.6 Liebert XDO—Overhead Cooling Module The Liebert XDO is an overhead cooling system designed for installation above heat-dissipating equipment. A fan draws hot air exhausted from the equipment through two cooling coils and discharges cool air back down to the equipment (see Figure 6). A Liebert XDO smart module will allow remote monitoring, shutdown, fan failure alarms, condensate detection and automatically cycling the fan On and Off as the heat load requires.
System Description 1.7 Liebert XDR—Rear Cooling Module The Liebert XDR is a cooling system for high-density heat loads that mounts on the rear of a 24" (600mm) x 42U rack (consult the factory for other rack sizes) and maintains access to the back of the server rack. Room air is drawn in through the front of the rack and picks up heat from the servers. The coil captures that heat, cooling the air, which is expelled through the rear of the rack.
System Description 1.8 Liebert XDV—Vertical, Above-Cabinet Cooling Module The Liebert XDV cooling system is designed to be attached to the top of a computer cabinet or rack containing heat-dissipating equipment. Two fans draw hot air exhausted from the equipment or from the hot aisle, pass it through a cooling coil and discharge cool air back down to the cold aisle, where the equipment's air intake is located.
System Description 1.9 Liebert XDC—Refrigerant Chiller The Liebert XDC is an indoor chiller that connects directly to the Liebert XD cooling modules and provides refrigerant circulation and control. The Liebert XDC keeps the refrigerant temperature above the room dew point at the sensors. The Liebert XDC contains a refrigerant to refrigerant heat exchanger along with two tandem scroll compressor circuits.
System Description 1.10 Liebert XDP—Pumping Unit The Liebert XDP isolates the building’s chilled water circuit from the pumped refrigerant circuit. The Liebert XDP circulates refrigerant to Liebert XD cooling modules while preventing condensation by maintaining the refrigerant’s temperature above the room dew point at the sensors.
System Description 1.11 Liebert XD Piping Liebert XD Piping is prefabricated distribution piping that is installed in anticipation of a growing system. Liebert XD cooling modules are added as required and are quickly made operational with flexible connection piping with threaded couplings. This unique system allows the room cooling capacity to increase to more than 30kW per rack with no additional disruptive piping installation.
Starting a New Equipment Cooling Project 2.0 STARTING A NEW EQUIPMENT COOLING PROJECT 2.1 Determining Cooling Equipment Needs 1. Is adequate space available for a Liebert XD installation? 2. Is the hot aisle/cold aisle approach being utilized for this room design or can it be utilized in this room design? 3. Is redundant cooling equipment required? 4. Are there access considerations for all components (possible rigging problems) 5.
Starting a New Equipment Cooling Project 2.2 Implementing a Hot-Aisle/Cold Aisle Design A best practice is to place equipment racks in alternating rows of cold aisles and hot aisles. This is best accomplished when the layout of the file-server farm area is first being planned. It is exceedingly more difficult to accomplish when the computer room is already populated with operating hardware.
Designing a Liebert XD Solution 3.0 DESIGNING A LIEBERT XD SOLUTION Liebert XD systems are intended for use with precision air conditioning equipment, such as the Liebert Deluxe System/3 and Liebert DS. The precision air conditioning equipment is required for the humidification and filtration of the room air. The Liebert XD systems provide efficient, highly effective heat removal (sensible cooling only), without providing humidity control.
Designing a Liebert XD Solution Example For example, a 2000 ft2 server room with has 30 racks, 15 racks produce 20kW of heat each and 15 produce 10kW of heat per rack. 1. Calculate the total sensible cooling load. 15 racks x 20kW/rack = 300kW 15 racks x 10kW/rack = 150kW 300kW + 150kW = 450kW The total room load is 450kW. 2. Check heat density per square foot: 450kW/2000ft2 = 0.225kW/ft2 = 225W/ft2 3. Determine base cooling requirements: Typically, perimeter cooling accounts for 2 to 5kW per rack.
Designing a Liebert XD Solution either Liebert XDH20, Liebert XDO20 or Liebert XDR20. The racks with 10kW per rack could be cooled using the Liebert XDV10. 1. For the 15 racks with 20kW of heat each, the total load is: 15 racks x 20kW per rack = 300kW The perimeter cooling will address the first 2-5kW per rack: 2kW x 15 racks = 30kW The Liebert XD solution would have to remove 270kW for these racks with higher heat load.
Designing a Liebert XD Solution Different types of Liebert XD cooling modules may be connected to the same Liebert XDP or Liebert XDC as long as the sum of their cooling capacity does not exceed the supporting Liebert XDP’s or Liebert XDC’s model size number. Example Continuing the example in 3.
Designing a Liebert XD Solution 3.4.2 System Connection Configuration If possible, connect the Liebert XD modules to Liebert XDPs or Liebert XDCs in an interlaced configuration (see Figure 14). In an interlaced configuration, half the cooling units in an aisle are connected to one Liebert XDP or Liebert XDC and the other half in that aisle are connected to another Liebert XDP or Liebert XDC.
Designing a Liebert XD Solution 3.6 Liebert XDCF Placement The Liebert XDCF is a self-contained module designed to cool Egenera’s BladeFrame EX cabinets and equipment. Liebert XDCF modules attach to the rear of the Egenera BladeFrame EX cabinet, beside the power modules (see Figure 15). No cutting or drilling is required to attach the modules; all mounting holes, slots and pins required are fabricated at the factory. The Liebert XDCF does not require electrical connections.
Designing a Liebert XD Solution 3.7 Liebert XDH Placement The free-standing Liebert XDH cooling unit is best placed among the equipment cabinets in a hot aisle-cold aisle arrangement (see Figure 16). The Liebert XDH draws in air from the hot aisle, cools it and discharges the cooled air into the cold aisle where it is drawn into the equipment cabinets. Even spacing aids in optimizing cooling. Liebert XDH units should be placed among the cabinets that generate the greatest amount of heat.
Designing a Liebert XD Solution 3.8 Liebert XDO Placement 3.8.1 Determining Spacing of Liebert XDOs in an Aisle Liebert XDO units should be placed in rows directly above the cold aisles of a room for optimum cooling. Each Liebert XDO serves an area equal in width to the cold aisle spacing, typically 12 to 16 feet (3.7 to 4.9m). The length of the area served includes any space between Liebert XDO modules in a row.
Designing a Liebert XD Solution 3.8.2 Determining Vertical Placement of Liebert XDOs Above the Cold Aisle In the maximum density configuration, Emerson recommends placing the Liebert XDOs between 18 and 24 inches (457-609mm) above the equipment cabinets. In some cases where the required density is less, the front-to-rear spacing of Liebert XDOs in a row will be increased.
Designing a Liebert XD Solution 3.9 Liebert XDR Unit Placement The Liebert XDR does not require a hot aisle/cold aisle arrangement for effective and efficient operation. Refer to site-specific drawings for exact placement. The Liebert XDR is engineered to fit the rear of computer enclosure cabinets. Ensure that there is 25.6" (649mm) clearance in the rear to allow the door to open fully. 3.9.1 Airflow The server fans draw air into the equipment enclosure.
Designing a Liebert XD Solution 3.10 Liebert XDV Unit Placement Liebert XDV units should be placed on top of the cabinets that generate the greatest amount of heat. If heat loads are dispersed evenly throughout the room, the Liebert XDV modules may be spread out accordingly. The Liebert XDV must be placed toward the front of the equipment cabinet, so that its front bottom edge is flush with the front top edge of the cabinet.
Designing a Liebert XD Solution 3.11 Liebert XDP/Liebert XDC Placement The Liebert XDP/Liebert XDC may be placed in the critical space or in an adjacent equipment room. The allowable distance between the Liebert XDP/Liebert XDC and its connected cooling modules is determined by the piping design and by the amount of refrigerant required. Refer to 3.18 - Liebert XD Refrigerant and 3.13 - Liebert XD Piping System Design.
Designing a Liebert XD Solution 3.
Designing a Liebert XD Solution Figure 23 Liebert XDV units mounted on racks emitting 8kW of heat top view Downflow Cooling Unit Downflow Cooling Unit XDVs Mounted on Equipment Racks Interlaced piping arrangement for enhanced protection Circuit 1 Circuit 2 Circuit 3 Perforated Raised Floor Tiles Figure 24 Liebert XDV units mounted on racks emitting 16kW of heat top view Downflow Cooling Unit Downflow Cooling Unit XDVs Mounted on Equipment Racks Interlaced piping arrangement XDOs Mounted for en
Designing a Liebert XD Solution Figure 25 Multiple Liebert XD modules in an interlaced system Installing the Liebert XDR in a hot aisle/cold aisle configuration provides benefits such as increased ride-through in the event of a failure. With the room-neutral cooling, the Liebert XDR can be used where hot aisle/cold aisle setup is not feasible to address hot spots (see Figure 26).
Designing a Liebert XD Solution 3.13 Liebert XD Piping System Design All piping must be ASTM (American Society for Testing and Materials) Type “ACR” copper pipe. The typical maximum operating pressure in the system is 90 psi (620kPa). Piping for the Liebert XD system is arranged in a manner similar to piping for a chilled water system. Liebert XD cooling modules are connected in parallel between the main return and supply pipes going to and from the Liebert XDP/Liebert XDC.
Designing a Liebert XD Solution Table 8 Supply, return pipe sizes for refrigerant loop Pipe Function Key to Piping in Figure 28 Liebert XDP supply line, from Liebert XDP supply to farthest Liebert XD cooling module a Liebert XDP return line, from farthest Liebert XD cooling module to Liebert XDP return B From any model Liebert XDO/Liebert XDH/Liebert XDR supply to supply line of Liebert XDP C From any model Liebert XDO/Liebert XDH/Liebert XDR return to return line of Liebert XDP D From any model
Designing a Liebert XD Solution 3.15 Bypass Flow Controllers To ensure the XDP/XDC pumps operate within the optimum range, some installations require one or more bypass flow controller(s). These devices are added to the field piping, and simulate the flow of additional cooling modules. Each bypass flow controller should be installed with one shutoff valve to allow the controller to be disabled when cooling modules are added to a Liebert XD system.
Designing a Liebert XD Solution Figure 31 Bypass flow controller piping Liebert XD Cooling Module #1 Liebert XD Cooling Module #2 Bypass Flow Controllers Coolant Supply Coolant Return Filter Dryer Assembly Liebert XDP or Liebert XDC 32
Designing a Liebert XD Solution Figure 32 Hard-pipe connection diagram for Liebert cooling modules Refer to Table 8 for details. Return Main (seen from end ) 2-1/8" O.D. or 2-5/8" O.D. Recommended Arc Acceptable Arc Supply Main (seen from end ) 1-1/8" O.D. or 1-3/8" O.D.
Designing a Liebert XD Solution 3.16 Piping Installation Method Prefabricated Headers The assembly and connection means used for piping in the Liebert XD system are similar to those used for conventional refrigeration systems. All piping should be installed with high-temperature brazed joints. Soft solder is not recommended. During brazing, the lines must be filled with flowing dry nitrogen to prevent excessive oxidation and scale formation inside the piping.
Designing a Liebert XD Solution Figure 34 Four-port prefabricated piping for Liebert XD cooling modules H ODS L ODR 28-9/16" Ref. (725mm) 96" Nominal (2438mm) 48" Ref. Typ. (1219mm) 19-7/16" Ref. (494mm) Supply Return 19-7/16" Ref. (494mm) Table 11 Supply inch (mm) Return inch (mm) 28-9/16" Ref.
Designing a Liebert XD Solution Figure 35 Five-port prefabricated piping for Liebert XD cooling modules H L ODS ODR 120" Nominal (3048mm) 24" (610mm) Ref. Typ. Supply 4-5/8" (117mm) 8-5/16" (211mm) Ref. Typ.
Designing a Liebert XD Solution Figure 36 Ten-port prefabricated piping for Liebert XD cooling modules H ODS ODR L 120" Ref. (3048mm) 7-7/16" Ref. Typ. (189mm) 9-1/16" (230mm) Ref. Typ. Table 13 Supply inch (mm) Return inch (mm) 7-7/16" (189mm) 24" (610mm) Ref. Typ.
Designing a Liebert XD Solution 3.17 Liebert XD Flex Pipe Kit Liebert XD Flex Pipe kits are available in lengths of 4, 6, 8 and 10 feet (1.2, 1.8,2.4 and 3 meters). Connection style to the unit end may be straight or 90 degrees with one-shot or removable connections. Connection to the prefabricated piping assembly is a threaded coupler. For data on acquiring the correct kit for your installation, see Table 14.
Designing a Liebert XD Solution 3.18 Liebert XD Refrigerant The refrigerant used in the Liebert XD system is HFC-134a (1,1,1,2-tetrafluoroethane), made by a number of manufacturers. The amount of refrigerant used by the Liebert XD system may be significantly higher than in typical DX cooling systems. NOTICE Risk of improper oil use. Can cause equipment damage. The Liebert XD pumped R-134a refrigerant circuits do not use refrigerant oil. Do NOT put oil in the R-134a system.
Designing a Liebert XD Solution Table 15 System R-134a charge for a Liebert XDP/Liebert XDC with any model Liebert XDH/Liebert XDO/Liebert XDV/Liebert XDCF Refrigerant Charge, lb (kg) Per Liebert XD Unit (Excludes Connector Lines to and from Liebert XD Cooling Module) 157 (71.2) Liebert XDP/Liebert XDC 3.55 (1.61) Liebert XDO 2.32 (1.05) Liebert XDV 2.66 (1.21) Liebert XDH (per circuit) 1.41 (0.64) Liebert XDCF 4 (1.
Designing a Liebert XD Solution 3.19.2 Calculating Refrigerant R134a Charge—Example Using Tables 15, 16, 17 and 18, calculate the refrigerant charge of the individual sections of your Liebert XD system. Add the calculated charge amounts to determine the amount of R-134a refrigerant required for one system combining a Liebert XDP with Liebert XD cooling modules (Liebert XDCF, Liebert XDH, Liebert XDO, Liebert XDR and Liebert XDV).
Designing a Liebert XD Solution Additional Oil Required Per Circuit, Ounces Figure 37 Additional oil requirements for refrigerant charge Each circuit contains ZRT250KCE Tandem 140 130 120 110 100 90 80 70 60 40 50 30 20 10 0 0 100 200 300 400 XDC160 System Refrigerant Field Charge Per Circuit, Pounds To calculate the oil required, use the following formula: Additional Oil Required per Circuit = (Refrigerant Charge * 0.
Designing a Liebert XD Solution Table 23 Outdoor condenser charge—R-407c Model Charge / Circuit, lb (kg) CSL616 254 (115.2) CSL415 200 (90.8) Table 24 Air cooled systems - liquid line charge - R-407c refrigerant per 100 ft (30 m) of Type “ACR” copper tube O.D., inches Liquid Line, lb (kg) Hot Gas Line, lb (kg) 3/8 3.7 (1.7) — 1/2 6.9 (3.1) — 5/8 11.0 (5.0) 2.2 (1.0) 3/4 15.7 (7.1) 3.1 (1.4) 7/8 23.0 (10.4) 17.5 (8.0) 1-1/8 39.3 (17.8) 7.8 (3.5) 1-3/8 59.8 (27.1 11.8 (5.
Liebert XD Cooling Modules—Liebert XDCF, Liebert XDH, Liebert XDO, Liebert XDR and Liebert XDV 4.0 LIEBERT XD COOLING MODULES—LIEBERT XDCF, LIEBERT XDH, LIEBERT XDO, LIEBERT XDR AND LIEBERT XDV 4.1 Liebert XDCF Standard Features The Liebert XDCF is a self-contained module designed to cool Egenera’s BladeFrame EX cabinets and equipment without exhausting heat into the room. Upper and lower modules may be mounted on the rear of an Egenera BladeFrame. Liebert XDCF modules use R-134a refrigerant.
Liebert XD Cooling Modules—Liebert XDCF, Liebert XDH, Liebert XDO, Liebert XDR and Liebert XDV 4.2 Liebert XDCF Mechanical Considerations The Liebert XDCF is engineered to fit on the rear of the Egenera BladeFrame enclosure. Figure 39 illustrates the unit’s dimensions and the location of pipes. Figure 40 shows the attachment positions of each module.
Liebert XD Cooling Modules—Liebert XDCF, Liebert XDH, Liebert XDO, Liebert XDR and Liebert XDV 4.3 Liebert XDCF Installation Considerations No cutting or drilling is required to attach the modules to the rear of the Egenera BladeFrame cabinet. All mounting holes, slots and pins required are fabricated at the factory. Liebert XDCF modules attach beside the power modules on the rear of the Egenera BladeFrame (see Figure 40).
Liebert XD Cooling Modules—Liebert XDCF, Liebert XDH, Liebert XDO, Liebert XDR and Liebert XDV 4.4.1 Header System The Liebert XDCF module system requires use of the Liebert XD prefabricated piping assembly or port kit. The prefabricated piping is compatible with the flex pipe required to attach to the Liebert XDCF modules. Figure 41 Liebert XDCF supply and return piping access points Return Pipe (5/8" diameter) 7-5/16" (186mm) 3-9/16" (90mm) Supply Pipe (1/2" diameter) 4.
Liebert XD Cooling Modules—Liebert XDCF, Liebert XDH, Liebert XDO, Liebert XDR and Liebert XDV • Tie-Down Bracket—An optional tie-down bracket may be installed on the Liebert XDH to secure it in the row. The bracket keeps space between the Liebert XDH and adjacent equipment constant, preventing vibration.
Liebert XD Cooling Modules—Liebert XDCF, Liebert XDH, Liebert XDO, Liebert XDR and Liebert XDV 4.7 Liebert XDO Standard Features • Micro Channel Heat Exchanger—The Liebert XDO unit includes two all-aluminum micro channel heat exchangers. • Fan—Air is drawn in the sides of the unit through the heat exchangers and is discharged by the fan to the area below—The Liebert XDO fan tray hinges down to allow access to replace or service all electrical components.
Liebert XD Cooling Modules—Liebert XDCF, Liebert XDH, Liebert XDO, Liebert XDR and Liebert XDV Figure 44 Dimensional data—Liebert XDO hard-piped units LEFT SIDE 24-1/8" (613mm) REAR 72-1/4" (1835mm) RIGHT SIDE FRONT LEFT SIDE 25-3/8" (645mm) 22-3/8" (568mm) 24-1/4" (616mm) 9-3/4" (248mm) 9-3/4" (248mm) FRONT DPN000771 Figure 45 Dimensional data—Liebert XDO with pre-charged option LEFT SIDE 24-1/8" (613mm) REAR 72-1/4" (1835mm) FRONT RIGHT SIDE 50 RIGHT SIDE
Liebert XD Cooling Modules—Liebert XDCF, Liebert XDH, Liebert XDO, Liebert XDR and Liebert XDV Figure 46 Liebert XDO internal mounting location 26-3/4" (679mm) 18-1/2" (470mm) REAR 7/8" (22mm) diameter mounting holes 1" (25mm) TOP VIEW 1" (25mm) 26-3/4" (679mm) 7/8" (22mm) diameter mounting holes FRONT 51 DPN000771
Liebert XD Cooling Modules—Liebert XDCF, Liebert XDH, Liebert XDO, Liebert XDR and Liebert XDV Figure 47 Top and front electrical access points and terminal block—standard Liebert XDO modules Knockouts for high-voltage connections TOP Grounding Lug High-Voltage Cover FRONT Note: Access to electrical terminal blocks is through hinged fan tray DPN000771 Figure 48 Top and front electrical access points—Liebert XDO smart modules Knockouts for High-Voltage Connections, Standard Liebert XDO Modules Front
Liebert XD Cooling Modules—Liebert XDCF, Liebert XDH, Liebert XDO, Liebert XDR and Liebert XDV 4.9 Liebert XDR Standard Features • Micro-channel Heat Exchanger—The Liebert XDR unit includes two all-aluminum microchannel heat exchanger • Door Safety Catch—Liebert XDR modules have a door safety catch to prevent the door from opening beyond 110°. When the door is fully open, the safety catch will hold the door in place. To release the door, push up on the door catch and close the door.
Liebert XD Cooling Modules—Liebert XDCF, Liebert XDH, Liebert XDO, Liebert XDR and Liebert XDV Table 26 Cooling capacity, 1500-3000 cfm air flow Degrees F Degrees C Air flow (cfm) EAT (°F) Capacity (kW) LAT (°F) Air flow (cfm) EAT (°C) Capacity (kW) LAT (°C) 1500 86.0 10.3 63.6 1500 30 10.3 17.5 1500 95.0 13.4 65.9 1500 35 13.4 18.9 1500 104.0 16.4 68.4 1500 40 16.4 20.2 1500 122.0 22.5 73.1 1500 50 22.5 22.9 1600 87.8 10.5 66.4 1600 31 10.5 19.1 1600 95.
Liebert XD Cooling Modules—Liebert XDCF, Liebert XDH, Liebert XDO, Liebert XDR and Liebert XDV Figure 49 Liebert XDR dimensions with hard-piped connections Piping is not load-bearing and should never be used to lift or move the Liebert XDR.
Liebert XD Cooling Modules—Liebert XDCF, Liebert XDH, Liebert XDO, Liebert XDR and Liebert XDV Figure 50 Liebert XDR dimensions with one-shot connections (precharged) Piping is not load-bearing and should never be used to lift or move the Liebert XDR.
Liebert XD Cooling Modules—Liebert XDCF, Liebert XDH, Liebert XDO, Liebert XDR and Liebert XDV Figure 51 Liebert XDR dimensions with removable connections 1-1/2" (38mm) Piping is not load-bearing and should never be used to lift or move the Liebert XDR.
Liebert XD Cooling Modules—Liebert XDCF, Liebert XDH, Liebert XDO, Liebert XDR and Liebert XDV 4.12 Liebert XDV Standard Features • Micro Channel Heat Exchanger—The Liebert XDV unit includes one all-aluminum micro channel heat exchanger. • Dual IEC Power Cords and Power Inlets—The Liebert 115V, 60Hz Liebert XDV unit is supplied with two detachable, 10 ft (3m) power cords that attach to two IEC power inlets in the rear of the unit. Each power cord has a NEMA 5-15P (IEC 320-C14) plug at the opposite end.
Liebert XD Cooling Modules—Liebert XDCF, Liebert XDH, Liebert XDO, Liebert XDR and Liebert XDV Figure 52 Liebert XDV dimensions W DT PH DF DB H DPN000770 Liebert XDV With Pre-charged Option or Removable Connection (all dimensions except piping height are the same as for the hard-piped setup, see Table 27) Table 27 Dimensional data Illustration Key Dimension Measurement, in.
Liebert XD Cooling Modules—Liebert XDCF, Liebert XDH, Liebert XDO, Liebert XDR and Liebert XDV Figure 53 Liebert XDV dimensions with one-shot connection Top of Liebert XDV SCHRADER VALVE SUPPLY(IN) RETURN(OUT) SCHRADER VALVE SUPPLY (IN) RETURN (OUT) Supply Connection 1/2" Detail Area “A” Return Connection 5/8" Detail “A” Figure 54 Suspending single Liebert XDV from Unistruts Bolt 3/8" -16; nut and washer provided in kit Unistrut (field-supplied) Hanger brackets available from factory; purchased se
Liebert XD Cooling Modules—Liebert XDCF, Liebert XDH, Liebert XDO, Liebert XDR and Liebert XDV Figure 55 Suspending single Liebert XDV from the roof structure 3/8"-16 all-thread bolts, field-supplied, typical Hanging XDV unit To prevent bypass air from recirculating through the XDV without it passing through the cabinet, this space between the hanging XDV and the cabinet must be blocked.
Liebert XD Cooling Modules—Liebert XDCF, Liebert XDH, Liebert XDO, Liebert XDR and Liebert XDV Figure 56 Alternative mounting methods—mounting multiple Liebert XDV units Attach hanger brackets to each corner of each XDV. This arrangement permits mounting from either Unistruts or from overhead structure.
Liebert XDC and Liebert XDP 5.0 LIEBERT XDC AND LIEBERT XDP 5.1 Liebert XDC Standard Features • Compressors—Scroll with a suction gas cooled motor, vibration isolators, thermal overloads, manual reset high-pressure switch and pump down low-pressure switch. • Refrigeration System—Dual refrigeration circuits each including liquid line filter dryers, refrigerant sight glass with moisture indicator, electronic control valve, adjustable externally equalized expansion valves and liquid line solenoid valves.
Liebert XDC and Liebert XDP Figure 58 Liebert XDC piping locations ** To first cooling module or bypass flow controller Install replaceable filter dryer assembly in liquid supply line G * Orientation determined by installer. F - Return From Cooling Units G - Supply to Cooling Units 47" (1193.8mm) 44" (1117.6mm) 6" (152mm) 23" (584.2mm) Dimensions are approximate and subject to change without notice.
Liebert XDC and Liebert XDP Figure 59 Positioning a water/glycol Liebert XDC for placement on a floor stand A - Return from Cooling Units B - Supply to Cooling Units 44" (1118mm) 47" (1194mm) 6" (153mm) 23" (584mm) C - Hot Gas Refrigerant Lines D - Liquid Refrigerant Lines Customer Water Supply E - Threaded Female Connections Customer Water Return F - Cup Fitting Capillary Lines are 48" (1220mm) Limit Valve Distance from Condensers Customer Provided Piping Table 30 DPN001419 Liebert XDC Water/Gly
Liebert XDC and Liebert XDP Figure 60 Piping locations—floor stand and valve assembly 33" (838mm) 72" (1828mm) 24" Nominal (609mm) TOP VIEW OF FLOOR STAND Hot Gas 1 Hot Gas 2 Shaded areas indicate a recommended clearance of 36" (915mm) for component access and water/glycol piping.
Liebert XDC and Liebert XDP Figure 61 Front view of Liebert XDC and electrical enclosures Primary Disconnect Switch Secondary Disconnect Switch Status Lamps User Interface Enclosure Cover Latch Enclosure Cover Latch Hazardous Voltage Enclosure Cover Hazardous Voltage Enclosure Cover SECONDARY ELECTRICAL ENCLOSURE COMPRESSOR SECTION PRIMARY ELECTRICAL ENCLOSURE PUMP SECTION Figure 62 Liebert XDC electrical enclosure knockout locations for field wiring Knockout for Input Power Enclosure Cover Not S
Liebert XDC and Liebert XDP Figure 63 Liebert XDC high-voltage connections—primary disconnect switch, 60Hz models Transformer Fuse Block Compressor Fuse Blocks Customer Power Connection Primary Power Block Ground Lug Primary Disconnect Switch Compressor Contactors Transformer 3 Relay Electronic Hot Gas Bypass Controllers Figure 64 Liebert XDC high-voltage connections—primary disconnect switch, 50Hz models Compressor Circuit Breakers Busbar Primary Power Block Wire Raceway Customer Power Connect
Liebert XDC and Liebert XDP Figure 65 Liebert XDC high-voltage connections—secondary disconnect switch, 60Hz models Power Connection From Primary Power Block Ground Lug Secondary Disconnect Switch Transformer 2 Pump Circuit Breakers Secondary Power Block Transformer Fuse Block Transformer 1 Pump Contactors Figure 66 Liebert XDC high-voltage connections—secondary disconnect switch, 50Hz models Power Connection From Primary Power Block Secondary Disconnect Switch Ground Lug Transformer 2 Pump Circui
Liebert XDC and Liebert XDP Figure 67 Liebert XDC heat rejection electrical connection points HEAT REJECTION ELECTRICAL CONNECTION POINTS Field-supplied 24V.
Liebert XDC and Liebert XDP Figure 69 Liebert XDC Extra Low Voltage field-connection points Control Display Panel Four thermostatic wires to be connected toTB3 Temperature/Humidity Sensor Cable Provided with Temperature/Humidity Sensor Board TS-3 TS-4 TS-5 TS-6 Factory-Wired Temperature Sensor(s) H2O (24) RAD1 (50) XDOC (51) K3COM K3NO K3NCL 37 38 77 78 Control wiring must be Class 2 and installed in accordance with the National Electrical Code (NEC) Requires shielded cable 71
Liebert XDC and Liebert XDP 5.2 Liebert XDP Standard Features • Heat Exchanger—Brazed plate design with interwoven circuiting constructed of stainless steel plates, copper brazed. • Pumps—Centrifugal type, end suction, internally cooled, canned rotor design. • Cabinet and Frame—Custom powder painted steel panels. A hinged control access panel opens to a second front panel, which is a protected enclosure for all high-voltage components.
Liebert XDC and Liebert XDP Figure 71 Liebert XDP piping access points and external features To first cooling module or bypass flow controller ** Close this valve during normal operation Install replaceable filter dryer assembly in liquid supply line B. * Orientation determined by installer A - Return From Cooling Modules 17-1/4" (438mm) B - Supply to Cooling Modules Emerson recommends field-installation of shutoff valves at these points to permit isolating the Liebert XDP for maintenance.
Liebert XDC and Liebert XDP Figure 72 Front view of Liebert XDP and electrical enclosure Disconnect Switch iCOM User Interface Enclosure Cover Latch Hazardous Voltage Enclosure Cover Front of Liebert XDP DPN001598 Figure 73 Liebert XDP electrical enclosure knockout location for hazardous voltage wiring XDP Input Power Knockout Enclosure cover not shown for clarity 74
Liebert XDC and Liebert XDP Figure 74 Liebert XDP electrical enclosure knockout locations for field wiring User Interface (Wall Box) Wiring Liebert XD Module Condensate Connections (optional; depends on features supplied with Liebert XD Module) Temperature/Humidity Sensor Wiring XDP Input Power Knockout Alternate Knockout for Temperature/Humidity Sensor Wiring Enclosure cover not shown for clarity Figure 75 Liebert XDP high-voltage connections—60Hz Transformer 2 (supplied on 460V units only) Custome
Liebert XDC and Liebert XDP Figure 76 Liebert XDP high-voltage connections—50Hz Customer Power Connection Ground Lug Transformer 2 Disconnect Switch Power Block Pump Circuit Breakers Transformer 6 Busbar Fuse Blocks Transformer 1 Pump Contactors 76
Specifications and Model Number Nomenclature 6.0 SPECIFICATIONS AND MODEL NUMBER NOMENCLATURE Table 33 Liebert XDCF specifications Models XD-CF-10-BP-*, XD-CF-10-TP-* XD-CF-10-BPE-*, XD-CF TPE-* Cooling capacity, maximum 10kWH / 2.8 Tons / 34,000 BTUh 55°F (13°C) entering fluid temperature, 50°F (10°C) or lower dew point Conditions Dimensions, inches (mm) Height – including pipe connections 31-3/8" (797mm) Width 13-7/16" (341mm) Depth 7-5/16" (186mm) Weight, lb (kg) Unit only 18 (8.
Specifications and Model Number Nomenclature Table 34 Liebert XDH20 specifications XDH20BK 1 XDH20SK 1 (60Hz) Models XDH20BS 1 XDH20SS 1 (50/60Hz) XDH20, 60Hz Nominal (98ºF [37°C] EAT): 22kW/6.3 Tons XDH20, 60Hz Maximum(105ºF [41°C] EAT): 25.3kW/7.2 Tons XDH20, 50Hz Nominal (98ºF [37°C] EAT): 21.6kW / 6.1 Tons XDH20, 50Hz Maximum(105ºF [41°C] EAT): 25.3kW/7.
Specifications and Model Number Nomenclature Table 35 Liebert XDH32 specifications XDH32BK 1 XDH32SK 1 (60Hz) Models XDH32BS 1 XDH32SS 1 (50/60Hz) Cooling Capacity XDH32, 60Hz Nominal (98ºF [37°C] EAT): 30kW/8.5 Tons XDH32, 60Hz Maximum(105ºF [41°C] EAT): 34kW/9.7 Tons XDH32, 50Hz Nominal (98ºF [37°C] EAT): 30kW / 8.5 Tons XDH32, 50Hz Maximum(103ºF [39°C] EAT): 34kW/9.
Specifications and Model Number Nomenclature Figure 78 Liebert XDH model number nomenclature Example: XDH32BK— —* XD H Liebert Xtreme heat density system 32 20 = Model size 32 = Model size Horizontal row cooler B K — K = 120V-1ph-60Hz S = 208-240-1ph-60Hz 220-240-1ph-50Hz B = Base unit S = Smart modules 80 — * — = Domestic packaging E = Export packaging — = Hard piped P = Pre-charged One-Shot Coupling R = Removable Coupling Revision level
Specifications and Model Number Nomenclature Table 36 Liebert XDO16 specifications XDO16BK 1 XDO16SK 1 (60Hz) Models Cooling Capacity XDO16BS 1 XDO16SS 1 (60Hz) XDO16BS 1 XDO16SS 1 (50Hz) Nominal (85°F [29.4°C] EAT): 14kW/4.0Tons Maximum (93°F [34°C] EAT): 17.3 kW / 4.9 Tons Nominal (85°F [29.4°C] EAT): 16kW / 4.5 Tons Maximum (90°F [32°C] EAT): 17.3 kW / 4.
Specifications and Model Number Nomenclature Table 37 Liebert XDO20 specifications XDO20BK 1 XDO20SK 1 Models XDO20BS 1 XDO20SS 1 60Hz 60Hz 50Hz Nominal (92°F [33°C] EAT): 17.7kW / 5 Tons Maximum (103°F [39°C] EAT): 23.1kW / 6.6 Tons Nominal (92°F [33°C] EAT): 20kW / 5.7 Tons Maximum (100°F [38°C] EAT): 23.1kW / 6.
Specifications and Model Number Nomenclature Figure 79 Liebert XDO model number nomenclature Example: XDO20BK– –* XD O 20 Liebert Xtreme heat density system K B = Base unit S = Smart modules – * - = Domestic Packaging E = Export Packaging — = Hard-Piped P = Pre-charged One-Shot Coupling R = Removable Coupling Revision level Options for Liebert XDO20 and Liebert XDO16 Option Liebert XDO - 60Hz Models Liebert XDO - 50Hz Models 2 Liebert XDOs per lighting unit; 120V or 277V; 4’ standard fluore
Specifications and Model Number Nomenclature Table 40 Liebert XDR20 specifications XDR20B1- * Models XDR20B1P * (Precharged R134a) XDR20B1R * 20.5 kW (5.
Specifications and Model Number Nomenclature Table 42 Liebert XDV8 specifications XDV8BK 1 XDV8SK 1 XDV8BT 1 XDV8ST 1 60 Hz Models 60 Hz 50 Hz Nominal (92°F [33°C] EAT): 8kW / 2.3 Tons Maximum (95°F [35°C] EAT): 8.7kW / 2.5 Tons Cooling Capacity XDV8BS 1 XDV8SS 1 50 Hz Nominal (92°F [33°C] EAT): 7kW/ 2.0 Tons Maximum (103°F [39°C] EAT): 8.7kW/2.5Tons Capacity rating is @ 55ºF (13ºC) Entering Fluid Temperature and 50ºF (10ºC) or lower dew point, rear air inlet.
Specifications and Model Number Nomenclature Table 43 Liebert XDV10 specifications XDV10BK 1 XDV10SK 1 XDV10BT 1 XDV10ST 1 60 Hz Models XDV10BS 1 XDV10SS 1 60 Hz 50 Hz 50 Hz Nominal (98ºF [37ºC] EAT: 10kW / 2.8 Tons Nominal (98ºF [37ºC] EAT): 8.3kW / 2.4 Tons Maximum (106ºF [41ºC] EAT): 11.7kW/3.3 Tons Maximum (116ºF [47ºC] EAT): 11.7kW/3.3 Tons Cooling Capacity Capacity Rating is @ 55ºF (13ºC) Entering Fluid Temperature and 50ºF (10ºC) or lower dew point, rear air inlet.
Specifications and Model Number Nomenclature Table 44 Liebert XDV dimensions—domestic and export Unit Dimensions Unpacked Length x Width x Height inches (mm) Shipping Dimensions Length x Width x Height inches (mm) Model Domestic Export Unit Only All Models 48 x 40 x 24-1/4 (1219 x 1016 x 616) 45-4/5 x 30-3/4 x 33 (1163 x 781 x 839mm) 39-1/2 x 22-7/8 x 14 (1003 x 581 x 356) Figure 81 Liebert XDV model number nomenclature Example: XDV10BK– –* XD V 10 B 8 = Model size 10 = Model Size Liebert
Specifications and Model Number Nomenclature Table 45 Liebert XDC160 specifications XDC160 Air Models Cooling Capacity, tons (kW) Minimum Load XDC160 Water / Glycol XDC160AA XDC160AM 46 (160) 37 (130) 189192G3 (90-100°F) 189192G5 (65-85°F) See Tables 46, 47 and 48 for Water/Glycol performance data 40% of system nominal capacity (64 kW for 60Hz unit) Electrical Requirements Input 460V-3ph-60Hz 380/415V-3ph-50Hz Full Load Amps 460V-3ph-60Hz 79A Minimum supply wire sizing ampacity 84A Maximum f
Specifications and Model Number Nomenclature Table 46 Floor stand specifications—water-cooled Liebert XDC XDC160 Water Floor Stand - 60Hz 189192G3 189192G5 Entering Fluid Temp °F (°C) 65 (18) 70 (21) 75 (24) 85 (29) 95 (35) 46.1(162.3) 46.1(162.3) 46.1(162.3) 46.1(162.3) 44.5(156.5) Performance Data Cooling capacity, tons (kW) Flow, GPM Pressure Drop, psi (Ft Water) 50 58 70 110 142 2.7 (6.2) 4.9 (11.3) 5.4 (12.5) 20.7 (47.8) 27.3 (63.
Specifications and Model Number Nomenclature Table 48 Floor stand specifications—Liebert XDC with 40% ethylene glycol XDC160 Glycol Floor Stand - 60Hz - 40% EG 189192G3 Outside Ambient °F (°C) 95 (35) 100 (38) 105 (41) Max Entering Fluid Temp °F (°C) 110 (43) 110 (43) 110 (43) Performance Data Cooling capacity, tons (kW) 42.5 (149.4) Total Heat Rejection, (kW) 192.6 Flow, GPM 204 Pressure Drop, psi (ft water) 35.9 (82.
Specifications and Model Number Nomenclature Table 49 Liebert XDP160 specifications XDP160RC--3 Models XDP160RA--3 160kW / 46 Tons, 60Hz XDP160RM--3 140kW / 40 Tons, 50Hz Each capacity is based on 45ºF (7ºC) entering water temperature and 140gpm (530lpm) water flow rate. Capacity is reduced when glycol mixtures are used in place of 100% water.
Specifications and Model Number Nomenclature Figure 83 Liebert XDP model number nomenclature Example: XDP160RA– –* XD P 160 Pumping unit Liebert Xtreme heat Density system R A Pump Redundancy Model size – Place holder Voltage-phase-frequency A = 460V-3ph-60Hz C = 208V-3ph-60Hz M = 380/415-3ph-50Hz 92 – * Revision level Place holder
Specifications and Model Number Nomenclature Notes 93
Specifications and Model Number Nomenclature 94
Ensuring The High Availability Of Mission-Critical Data And Applications. Emerson Network Power, the global leader in enabling business-critical continuity, ensures network resiliency and adaptability through a family of technologies—including Liebert power and cooling technologies—that protect and support business-critical systems. Liebert solutions employ an adaptive architecture that responds to changes in criticality, density and capacity.
