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 3.20 3.21 3.22 3.23 Piping Details—Bull Heading Layout. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . Piping Installation Method Prefabricated Headers . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . Liebert XD Flex Pipe Kit . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . Liebert XD Refrigerant . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
6.1.3 6.1.4 6.1.5 6.1.6 6.1.7 Condenser Coil . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . Housing . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . Propeller Fan . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . Fan Motor . . . . . . . . . . . . . . . . . . . . . . . .
7.7 7.8 7.9 Liebert XDP Warnings . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 135 CANbus Communications . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 135 Network Layout Options . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 137 7.9.1 7.9.2 7.10 7.11 CANbus Cables. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
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 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 Bypass flow
Figure 80 Figure 81 Figure 82 Figure 83 Figure 84 Figure 85 Figure 86 Figure 87 Figure 88 Figure 89 Figure 90 Figure 91 Figure 92 Figure 93 Figure 94 Figure 95 Figure 96 Figure 97 Figure 98 Figure 99 Figure 100 Figure 101 Figure 102 Figure 103 Figure 104 Figure 105 Figure 106 Figure 107 Figure 108 Figure 109 Figure 110 Figure 111 Figure 112 Figure 113 Figure 114 Figure 115 Figure 116 Figure 117 Figure 118 Figure 119 Figure 120 Figure 121 Figure 122 Figure 123 Figure 124 Figure 125 Figure 126 Figure 127 Figu
Figure 130 Figure 131 Figure 132 Figure 133 Figure 134 Figure 135 Figure 136 Figure 137 Figure 138 Figure 139 Figure 140 Liebert XDH CANbus port locations . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . Single-circuited Liebert XDHs . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . Dual-circuited Liebert XDHs . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
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 Table 50 Table 51 Table 52 Table 53 Table 54 Table 55 Table 56 Table 57 Table 58 Table 59 Table 60 Table 61 Table 62 Table 63 Table 64 Table 65 Table 66 Table 67 Table 68 Table 69 Table 70 Table 71 Table 72 Table 73 Table 74 Table 75 Unit piping outlet connection sizes, inches, OD Cu . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
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 module (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 1.11.1 Liebert XD Field Piping Flexible Piping Kit 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 module end may be straight or 90 degrees with one-shot style couplings or removable couplings. The one-shot flexible pipes are charged at the factory with R134a. Connection to the prefabricated piping assembly is a threaded coupler.
Starting a New Equipment Cooling Project 2.0 STARTING A NEW EQUIPMENT COOLING PROJECT 2.1 Determining Cooling Equipment Needs 2.2 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.
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 3.3 Selecting Liebert XD Cooling Modules The next step is to select the Liebert XD cooling modules to be configured into the solution. Liebert XD modules that use pumped refrigerant can be connected to the same Liebert XDP/Liebert XDC piping circuit. This includes the Liebert XDCF, Liebert XDH, Liebert XDO, Liebert XDR and Liebert XDV.
Designing a Liebert XD Solution 3.4 Configuring a Liebert XD System 3.4.1 Number of Modules Supported by a Liebert XDP or Liebert XDC The numerals designating the model size of a Liebert XD module may be used to configure a cooling system. For example, a Liebert XDO20 has a model size of 20 and a Liebert XDP160 will accommodate cooling modules with a cumulative model size of 160.
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 13). In an interlaced configuration, half the cooling modules 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 14). 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 module is best placed among the equipment cabinets in a hot aisle-cold aisle arrangement (see Figure 15). 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 modules 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 modules 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 Module 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 Module Placement Liebert XDV modules 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 3.22 - Liebert XD Refrigerant and 3.13 - Liebert XD Piping System Design.
Designing a Liebert XD Solution Figure 21 Liebert XDV modules mounted on racks emitting 5kW of heat, top view Downflow Cooling Unit Downflow Cooling Unit XDVs Mounted on Equipment Racks Interlaced piping arrangement for enhanced protection Figure 22 Circuit 1 Circuit 2 Equipment Racks without XDVs Perforated Raised Floor Tiles Liebert XDV modules mounted on racks emitting 8kW of heat top view Downflow Cooling Unit Downflow Cooling Unit XDVs Mounted on Equipment Racks Interlaced piping arrang
Designing a Liebert XD Solution Figure 23 Liebert XDV modules 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 enhanced on Equipment Racks protection Figure 24 Circuit 1 Circuit 2 Circuit 3 Circuit 4 Circuit 5 Circuit 6 Multiple Liebert XD modules in an interlaced system 26 Perforated Raised Floor Tiles
Designing a Liebert XD Solution 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 25). Figure 25 Liebert XD modules not in hot aisle/cold aisle configuration These methods can increase the redundancy of any Liebert XD system: • • • • 3.
Designing a Liebert XD Solution The assembly and connection means used for piping in the Liebert XD system are similar to that of conventional refrigeration systems. All piping should be installed with high temperature brazed joints. Soft solder is not recommended. The lines being brazed MUST be filled with flowing dry nitrogen during brazing to prevent excessive oxidation and scale formation inside the piping.
Designing a Liebert XD Solution 3.14 Liebert XD Piping Slope The main supply and return lines to and from the XDP/XDC must be sloped downward toward the XDP/XDC at a rate of 1-2" per 20 feet (25-51mm per 6m) of pipe run. Horizontal connector lines should also be sloped downward from the cooling modules toward the main supply and return lines. 3.
Designing a Liebert XD Solution Figure 30 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 30
Designing a Liebert XD Solution 3.16 Piping Details—Shutoff/Isolation Valves Isolation valves must be installed on the Liebert XDC’s refrigerant circuit to permit maintenance on the unit (see Figure 31). Figure 31 General piping details Return Supply Field-Supplied Full-Port Ball Valves Factory-Supplied Full-Port Ball Valves On Liquid Refrigerant Lines Field Piping, Supplied and Piped By Field 3.
Designing a Liebert XD Solution Figure 33 Hard-pipe connection diagram for Liebert cooling modules Refer to Table 8 Return Main for details. (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. Refrigerant -Grade Full-Port Ball Valve Field-Supplied and Field-Installed to Match Pipe Size Refrigerant -Grade Full-Port Ball Valve Field-Supplied and Field- Installed to Match Pipe Size Maximum 9ft. (2.
Designing a Liebert XD Solution 3.18 Piping Details—Return Header Port Orientation The return header port from a Liebert XD cooling module is a gravity return and must be properly oriented to the refrigerant return header for proper flow. The return header contains R134a refrigerant in gas and liquid form. Improperly connecting a cooling module’s return header port to the return header could permit liquid refrigerant to back up into the cooling module. See Figure 34 for proper orientation.
Designing a Liebert XD Solution Figure 35 Liebert XD supply header orientation Port Kit, Supply Header Port Connection to a supply header. Any connection angle is functional. t p a e ble c c A R134a Refrigerant LIQUID A c c e p t a ble 3.19 Piping Details—Bull Heading Layout Good piping layout employs offsetting connections to promote easier refrigerant flow, as shown in Figure 36. “Bull head T” connections should be avoided.
Designing a Liebert XD Solution 3.20 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 38 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 39 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 40 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 3.21 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 module 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 Example A space is 5,000 square feet, with an 18" raised floor and an 8' 6" suspended ceiling. Liebert XDOs and a Liebert XDP are to be placed in this raised-floor area. The volume of the space is (1.5 + 8.5) x 5,000 or 50,000 cubic feet. The maximum amount of R-134a refrigerant that can be used in a single Liebert XDP/Liebert XDC/Liebert XD module system within this space is 13 * (50000/1000) = 13 * 50 = 650 lb.
Designing a Liebert XD Solution Table 17 R-134a refrigerant charge for hard-piped connector lines to and from any model Liebert XDH/Liebert XDO/Liebert XDV Refrigerant Charge, lb/foot (kg/m) Hard-Piped Connector Length and Diameter 0.08 (0.12) 1/2" OD Liebert XDH/Liebert XDO/Liebert XDR/Liebert XDV supply connector actual length 0.13 (0.19) 5/8" OD copper tubing Liebert XDV supply connector actual length 0.26 (0.39) 7/8" OD Liebert XDO/Liebert XDH/Liebert XDR supply connector actual length 0.02 (0.
Designing a Liebert XD Solution Table 20 Worksheet to calculate refrigerant charge Components Number of Units or Piping Length Pounds Per Component Total Total Verify that the refrigerant volume of the Liebert XD system with the longest piping length is within the allowable limit. If the allowable limit is exceeded, the Liebert XDP/Liebert XDC should be moved closer to the cooling modules (refer to 3.22 - Liebert XD Refrigerant for limits and related details).
Designing a Liebert XD Solution Figure 41 Piping access points To first cooling module or bypass flow controller ** To first cooling module or bypass flow controller ** Install replaceable filter dryer assembly in liquid supply line B. Close this valve during normal operation Orientation determined by installer * * Orientation determined by installer.
Designing a Liebert XD Solution 3.25 Electrical Make all wiring and electrical connections in accordance with local and national codes. Refer to the applicable table in 9.0 - Specifications and Model Number Nomenclature regarding wire size and circuit protection requirements. Refer to electrical schematic when making connections. 3.26 Temperature/Humidity Sensor Locations The display panel sensor and Liebert iCOM sensor (shipped loose) must always be installed in the conditioned space.
Designing a Liebert XD Solution 3.27 Connecting Liebert XDP and Liebert XD Cooling Modules in a CANbus Network A Controller Area Network (CAN) is a specialized internal communication network. It allows the Liebert XDP and the Liebert XD smart modules to communicate without a host computer. Networking a Liebert XDP with smart modules enables the smart modules to be controlled and monitored from the Liebert XDP.
Designing a Liebert XD Solution Plan wiring runs for U2U communication when designing the layout of the conditioned space. In addition to following general good wiring practices, take these precautions: • Keep control and communication cables away from power cables to prevent electromagnetic interference. • Do not bend cables to less than four times the diameter of the cable. • Do not deform cables when securing them in bundles or when hanging them.
Designing a Liebert XD Solution 3.27.3 Remote Sensor Placement Within the CANbus Two remote sensors are shipped with the Liebert XDP. One shielded CANbus cable is provided with each sensor. Sensor A is to be connected to the directly the Liebert XDP. Sensor B is to be connected to the CANbus within the smart module chain. This can be at the end of the chain as shown in Figure 45. For proper placement within the room, see 3.26 - Temperature/Humidity Sensor Locations.
Designing a Liebert XD Solution The sensors can also be isolated in an independent daisy chain, see Figure 48.
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 50 illustrates the module’s dimensions and the location of pipes. Figure 51 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 51).
Liebert XD Cooling Modules—Liebert XDCF, Liebert XDH, Liebert XDO, Liebert XDR and Liebert XDV 4.4.1 Header System—Liebert XDCF 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 52 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 4.6 Optional Features—Liebert XDH • Smart Module—Smart modules will allow remote shutdown, fan failure alarms and automatically switching the second fan bank On and Off. The controls save energy by permitting the module to turn one fan in each fan bank Off based on the supply and return temperature.
Liebert XD Cooling Modules—Liebert XDCF, Liebert XDH, Liebert XDO, Liebert XDR and Liebert XDV Figure 54 Supply and return piping connections—Liebert XDH Top of Liebert XDH Detail “A” 6" (152mm) 3-5/8" (92mm) 1-3/8" (35mm) 2" (51mm) 1/2" Supply, Upper Refrigeration Circuit 4-1/8" (104mm) 7/8" Return, Upper Refrigeration Circuit Rear of Liebert XDH 5" (126mm) Rear of XDH 7/8" Return, Lower Refrigeration Circuit 1/2" Supply, Lower Refrigeration Circuit Detail "A" 54 DPN001180
Liebert XD Cooling Modules—Liebert XDCF, Liebert XDH, Liebert XDO, Liebert XDR and Liebert XDV 4.7 Connecting High-Voltage Wiring—Liebert XDH The Liebert XDH requires single-phase power for normal operation. The module ships with two power cords, each 10 feet (3m) long with NEMA 5-15 plugs, which connect to common, three-prong outlets (see Figures 55 and 56). Figure 55 Basic Liebert XDH electrical connections 60Hz MODELS ONLY Field-wiring connections at terminal strip to be NEC Class 2.
Liebert XD Cooling Modules—Liebert XDCF, Liebert XDH, Liebert XDO, Liebert XDR and Liebert XDV 4.8 Connecting Low-Voltage Wiring—Liebert XDH Smart Modules Low-voltage connections are available only on the Liebert XD smart module. The low-voltage connections for Liebert XDH smart modules are in the rear of the modules. There are two connection locations, one for the lower bank of fans and one for the upper bank of fans.
Liebert XD Cooling Modules—Liebert XDCF, Liebert XDH, Liebert XDO, Liebert XDR and Liebert XDV 4.9 Liebert XDO Standard Features • Micro Channel Heat Exchanger—The Liebert XDO module includes two all-aluminum micro channel heat exchangers. • Fan—Air is drawn in the sides of the module 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 58 Dimensional data—Liebert XDO hard-piped modules 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) Figure 59 9-3/4" (248mm) FRONT DPN000771 Dimensional data—Liebert XDO with pre-charged option LEFT SIDE 24-1/8" (613mm) REAR 72-1/4" (1835mm) FRONT RIGHT SIDE 58 RIGHT SIDE
Liebert XD Cooling Modules—Liebert XDCF, Liebert XDH, Liebert XDO, Liebert XDR and Liebert XDV Figure 60 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 59 DPN000771
Liebert XD Cooling Modules—Liebert XDCF, Liebert XDH, Liebert XDO, Liebert XDR and Liebert XDV Figure 61 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 60 DPN000771
Liebert XD Cooling Modules—Liebert XDCF, Liebert XDH, Liebert XDO, Liebert XDR and Liebert XDV Figure 62 High-voltage terminal block and connection locations—standard Liebert XDO modules High-Voltage Cover High-voltage and low-voltage terminal blocks viewed from the interior of the Liebert XDO Earth-Ground Location N High-Voltage Terminal Block Inside detail view with high-voltage cover removed. For clarity, top is not shown.
Liebert XD Cooling Modules—Liebert XDCF, Liebert XDH, Liebert XDO, Liebert XDR and Liebert XDV Figure 64 High-voltage terminal block connection locations—Liebert XDO smart modules Top of Liebert XDO Grounding Lug High-Voltage Connections Rear of Liebert XDO Electric Box (Access is through hinged fan tray) Electric Box 62 DPN000771 Rev.
Liebert XD Cooling Modules—Liebert XDCF, Liebert XDH, Liebert XDO, Liebert XDR and Liebert XDV 4.11 Low-Voltage Wiring—Liebert XDO Smart Modules Low-voltage connections to the Liebert XDO are available only on smart modules. Viewing the Liebert XDO from the front or from above, the low-voltage terminal block is on the right side of the module (see Figure 65). Make low-voltage connections on these modules according to sitespecific drawings.
Liebert XD Cooling Modules—Liebert XDCF, Liebert XDH, Liebert XDO, Liebert XDR and Liebert XDV 4.12 Liebert XDR Standard Features • Micro-channel Heat Exchanger—The Liebert XDR module 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 4.14 Liebert XDR Installation Considerations Panels must be installed on the top and bottom of the rack to ensure that the air flows across the Liebert XDR’s coils. If the panels are not installed, heated air will bypass the coils, drastically reducing the performance of the Liebert XDR.
Liebert XD Cooling Modules—Liebert XDCF, Liebert XDH, Liebert XDO, Liebert XDR and Liebert XDV Figure 66 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 67 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 68 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 4.15 Liebert XDV Standard Features • Micro Channel Heat Exchanger—The Liebert XDV module includes one all-aluminum micro channel heat exchanger. • Dual IEC Power Cords and Power Inlets—The Liebert 115V, 60Hz Liebert XDV module is supplied with two detachable, 10 ft (3m) power cords that attach to two IEC power inlets in the rear of the module.
Liebert XD Cooling Modules—Liebert XDCF, Liebert XDH, Liebert XDO, Liebert XDR and Liebert XDV Figure 69 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 26) Table 26 Dimensional data Illustration Key Dimension Measurement, in.
Liebert XD Cooling Modules—Liebert XDCF, Liebert XDH, Liebert XDO, Liebert XDR and Liebert XDV Figure 70 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 71 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 s
Liebert XD Cooling Modules—Liebert XDCF, Liebert XDH, Liebert XDO, Liebert XDR and Liebert XDV Figure 72 Suspending single Liebert XDV from the roof structure 3/8"-16 all-thread bolts, field-supplied, typical Hanging Liebert XDV module To prevent bypass air from recirculating through the Liebert XDV without it passing through the cabinet, this space between the hanging Liebert XDV and the cabinet must be blocked.
Liebert XD Cooling Modules—Liebert XDCF, Liebert XDH, Liebert XDO, Liebert XDR and Liebert XDV Figure 73 Alternate mounting methods—mounting multiple Liebert XDV modules Attach hanger brackets to each corner of each Liebert XDV. This arrangement permits mounting from either Unistruts or from overhead structure.
Liebert XD Cooling Modules—Liebert XDCF, Liebert XDH, Liebert XDO, Liebert XDR and Liebert XDV 4.17 High-Voltage Cabling for Liebert XDV The Liebert XDV ships with two IEC input power cords. IEC power cords connect to receptacles on the Liebert XDV and to power sources. See Figures 74 and 75 for power connection locations on basic modules; see Figures 76 and 77 for power connection locations on smart modules.
Liebert XD Cooling Modules—Liebert XDCF, Liebert XDH, Liebert XDO, Liebert XDR and Liebert XDV Figure 75 Electrical connections for CE-approved Liebert XDV basic modules Rear of Liebert XDV Knockout for Optional Wiring Circuit Breaker Location on Front of Liebert XDV, Primary and Secondary Circuit Breakers Attached Primary and Secondary power cords. Power cords not shown for clarity. DPN000770 Pg. 8, Rev.
Liebert XD Cooling Modules—Liebert XDCF, Liebert XDH, Liebert XDO, Liebert XDR and Liebert XDV Figure 76 Electrical connections for CSA-approved Liebert XDV smart modules Rear of Liebert XDV Optional Remote Shutdown (37,38) Condensate Detection and Alarm Relay Dry Contacts-Low Voltage Connections (82 through 87) Circuit Breaker Location on Front of XDV, Primary and Secondary Circuit Breaker IEC Primary and Secondary Power Inlet DPN000770 Pg. 7, Rev.
Liebert XD Cooling Modules—Liebert XDCF, Liebert XDH, Liebert XDO, Liebert XDR and Liebert XDV Figure 77 Electrical connections for CE-approved Liebert XDV smart modules Rear of Liebert XDV Optional Remote Shutdown (37,38), Condensate Detection, and Alarm Relay Dry Contacts-low voltage connections (82 thru 87). Circuit Breaker Location on Front of Liebert XDV, Primary and Secondary Circuit Breaker Attached Primary and Secondary power cords (Power cords not shown for clarity) DPN000770 Page 9, Rev.
Liebert XD Cooling Modules—Liebert XDCF, Liebert XDH, Liebert XDO, Liebert XDR and Liebert XDV 4.18 Low-Voltage Wiring—Liebert XDV Smart Modules The low-voltage connections for Liebert XDV smart modules are on the rear right side of the modules. The power connections are shown in Figure 78 and the dry contacts can be connected to a monitoring module, such as Liebert SiteScan®. Make low-voltage connections on these modules according to site-specific drawings.
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 5.1.1 Liebert XDC Optional Features • Water / Glycol Condensers—A water/glycol floor stand condenser option is available for heat rejection requirements. The water/glycol floor stand can be installed beneath the Liebert XDC or nearby. Figure 79 Dimensional data B Overall A Overall C F Height of Unit Recommended minimum hot gas supply and liquid return piping opening 1" (25.4mm) D 17" (431.8mm) 5" (127mm) 2" (50.
Liebert XDC and Liebert XDP Figure 80 Piping locations ** To first cooling module or bypass flow controller Install Replaceable Filter Drier Assembly in Liquid Supply Line 22" (559mm) DIMENSIONS ARE SUBJECT TO CHANGE WITHOUT NOTICE * Orientation Defined by Installer 21" (533mm) A - Return Line From Cooling Units (Line is spin closed; elbow is customer-provided) 3-1/4" (83mm) 8" (203mm) * B - Liquid Supply Line To Cooling Units 47" 44" (1194mm) (1118mm) 6" (152mm) 23" (584mm) C - Hot Gas Refrigerant L
Liebert XDC and Liebert XDP Figure 81 Positioning a water/glycol Liebert XDC for placement on a floor stand A - Return from Cooling Units B - Supply to Cooling Units 44" 47" (1118mm) (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 DPN001419 Pg.1, Rev.
Liebert XDC and Liebert XDP Figure 82 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 83 Front view of Liebert XDC and electrical enclosures Secondary Disconnect Switch Primary Disconnect Switch Liebert iCOM Display Enclosure Cover Latch PRIMARY ELECTRICAL ENCLOSURE COMPRESSOR SECTION Figure 84 Hazardous Voltage Enclosure Cover Hazardous Voltage Enclosure Cover SECONDARY ELECTRICAL ENCLOSURE PUMP SECTION Liebert XDC electrical enclosure knockout locations for field wiring Knockout for Input Power Enclosure Cover Not Shown for Clarity 84
Liebert XDC and Liebert XDP Figure 85 Liebert XDC high-voltage connections—primary disconnect switch, 60Hz models Transformer 3 (T3) Fuse Block Customer Power Connection Primary Power Block Compressor Fuse Blocks Ground Lug Primary Fused Disconnect Compressor Contactors Transformer 3 (T3) Electronic Hot Gas Bypass Controllers Figure 86 Liebert XDC high-voltage connections—primary disconnect switch, 50Hz models Compressor Circuit Breakers Transformer 3 (T3) Circuit Breaker Transformer 3 (T3) Cust
Liebert XDC and Liebert XDP Figure 87 Liebert XDC high-voltage connections—secondary disconnect switch, 60Hz models Power Connection from Primary Power Block Power Block Ground Lug Transformer 2 (T2) Secondary Fused Disconnect Transformer 3 (T3) Fuse Blocks Transformer 1 (T1) Pump Contactors Figure 88 Liebert XDC high-voltage connections—secondary disconnect switch, 50Hz models Power Block Power Connection From Primary Power Block Ground Lug Transformer 2 (T2) Secondary Disconnect Switch Transfor
Liebert XDC and Liebert XDP Figure 89 Liebert XDC heat rejection electrical connection points Heat Rejection Connections Field-supplied 24V, Class 1 wiring to interlock heat rejection from pigtails: 70A and 71A - Compressor Circuit #1 70B and 71B - Compressor Circuit #2 70C and 71C - Dual Source Relay (optional) Electrical handy box factory-installed with cover Figure 90 Liebert XDC electrical enclosure knockout locations for Extra Low-Voltage connections Liebert XD Module Condensate Connections (optio
Liebert XDC and Liebert XDP Figure 91 Liebert XDC Extra Low Voltage field connection points To P66 on Liebert iCOM Control Board Termination Plug To P64 on Liebert iCOM Control Board Red Ethernet Cable To Remote T/H Sensor A To Liebert XD Cooling Module and Remote T/H Sensor B To Optional External Connections P64 P66 P67 Unit Display (Rear View Factory-Wired Temperature Sensor P67 XD COOLANT DO NOT USE 1 Notes Control wiring must be Class 2 and installed in accordance with the National Electrical
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 92 Liebert XDP dimensions A Overall B Overall C Side Panel 78" (1981mm) E ) mm 127 ( " 5 D 1" (25mm) 2-3/8" (60mm) 11" (279mm) Floor Cutout Dimensions D Unit Base The shaded area indicates a recommended clearance of 36" (914mm) for component access.
Liebert XDC and Liebert XDP Figure 93 Liebert XDP piping access points and external features To first cooling module or bypass flow controller ** To first cooling module or bypass flow controller ** Install replaceable filter dryer assembly in liquid supply line B. Close this valve during normal operation Orientation determined by installer * * Orientation determined by installer.
Liebert XDC and Liebert XDP Figure 94 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 95 Liebert XDP electrical enclosure knockout location for hazardous voltage wiring Liebert XDP Input Power Knockout Enclosure Cover Not Shown for Clarity 92
Liebert XDC and Liebert XDP Figure 96 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 Liebert XDP Input Power Knockout Alternate Knockout for Temperature/Humidity Sensor Wiring Enclosure cover not shown for clarity Figure 97 Liebert XDP high-voltage connections—60Hz Power Block Customer Power Connection Gro
Liebert XDC and Liebert XDP Figure 98 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 94
Heat Rejection 6.0 HEAT REJECTION 6.1 Liebert Lee-Temp™ Refrigerant Control Air-cooled Condensers The Liebert XDC requires two air-cooled condensers per unit. Each condenser requires one receiver. 6.1.1 Liebert Lee-Temp Refrigerant Control Air-Cooled Condenser The Liebert Lee-Temp head pressure control system is designed to maintain proper operating head pressures in outdoor temperatures down to -30°F (-34.4°C).
Heat Rejection 6.1.5 Propeller Fan Aluminum propeller fan blades are secured to a corrosion-protected steel hub. Fan guards are heavy gauge, close-meshed steel wire with corrosion resistant PVC finish rated to pass a 675-hour salt spray test. Fans are secured to the fan motor shaft by a keyed hub and dual setscrews. Fan diameter is 26" (660mm) or less. The fans are factory-balanced and run before shipment. 6.1.
Heat Rejection Figure 100 Condenser planning dimensional data—Six-fan units 87-1/8" (2213mm) 131-1/2" (3340mm) 37-7/8" (962mm) 59" (1499mm) 18" (457mm) Emerson recommends a clearance of 36" (915mm) on each side for proper operation and component access. 124" (3150mm) 86-3/4" (2203mm) Overalll height to the top of the fan guard is 43-1/8” (1095mm). ANCHOR PLAN 42" (1067mm) 122" (3099 mm) See Figure 101 for typical condenser footprint dimensions.
Heat Rejection Table 34 Condenser weights and connections Outdoor Ambient °F (°C) Connection Size, OD, In.
Heat Rejection 6.3 Heat Rejection Piping 6.3.1 Piping for Direct Expansion (DX) Circuit—R-407C Air-Cooled Units ! WARNING Risk of refrigerant system explosion or rupture from overpressurization. Can cause equipment damage, injury or death. Installer must install a 400 psig pressure relief valve in each of the two R-407C refrigerant circuits of the Liebert XDC system. Do not install shutoff valves between the compressors and the pressure relief valves.
Heat Rejection For Air-Cooled Liebert Lee-Temp / Flood Back Head Pressure Control Units Only ! WARNING Risk of explosive discharge from high-pressure refrigerant. Can cause injury or death. This unit contains fluids and/or gases under high pressure. Relieve pressure before working with piping. NOTICE Risk of refrigerant contamination. Can cause equipment damage and operational problems.
Heat Rejection Figure 103 Installation data—Liebert Lee-Temp, one-circuit, four-fan model Field-supplied main disconnect switch in accordance with local codes or main unit switch ordered as optional equipment factory-installed in condenser control box.
Heat Rejection Figure 104 Installation data—Liebert Lee-Temp, one-circuit, high ambient six-fan model Field-supplied main disconnect switch in accordance with local codes or main unit switch ordered as optional equipment factory-installed in condenser control box * Liquid line from condenser (Circuit 1) B * Hot gas line from unit (Circuit 1) 5 See Note 14 Liebert Lee-Temp Heater Pad Electric Box * Hot gas line this end (See to condenser DPN000937, Pg.
Heat Rejection Figure 105 Liebert XDC piping schematic and Liebert Lee-Temp heater pad wiring Inverted Trap (By Others) Rotalock Valve Combination Head Pressure Control & Check Valve Condenser Control Box Pressure Relief Valve Lee-temp Winter System Air-Cooled Condenser Heater Pads Solenoid Valve Dehydrator Liquid Level Indicator Expansion Valve External Equalizer Hand Shutoff Valve By Others Sight Glass Sensing Bulb Hot Gas Bypass Valve Service Valves Suction Line Discharge Line Hot Gas Byp
Heat Rejection Figure 106 General arrangement air-cooled Liebert XDC Liebert Lee-Temp Control Condenser Coil * Inverted Trap on discharge line to extend above base of coil by a minimum of 7-1/2" (190mm) * Double Risers every 15ft (4.6m) of rise on hot gas line only; maximum rise not to exceed 60ft (18.3m) Additional Piping Assembly ** Check Valve Head Pressure Control with Integral Check Valve m id Fro u q Li turn nser R e nde Co 1/4" (6.
Heat Rejection Figure 107 DCSL616 piping connections—two refrigerant circuits connected for parallel flow Condenser Coil (Circuit 2) * Inverted Trap on discharge line to extend above base of coil by a minimum of 7-1/2" (190mm) Condenser Coil (Circuit 1) Additional Piping Assembly ** Head Pressure Control with Integral Check Valve * Double Risers every 15 ft (4.6m) of rise on hot gas line only; maximum rise not to exceed 60ft. (18.
Heat Rejection Figure 108 DCSL616 piping connections—two refrigerant circuits connected for parallel refrigerant flow Liquid Line (Circuit 1) Hot Gas Line (Circuit 1) Connect the two refrigerant coils for parallel refrigerant flow using field-supplied piping. Refer to Figure 104 for mounting instructions. Refrigerant lines are to be routed and secured to prevent excessive vibration and stress at the connections. 106 DPN000937 Pg. 5, Rev.
Heat Rejection 6.4.1 Air-Cooled Condenser with Liebert Lee-Temp “Flooded Condenser” Head Pressure Control System—R-407C (DX) Circuit The Liebert Lee-Temp system consists of a modulating type head pressure control valves and insulated receivers with heater pads to ensure operation at ambient temperatures as low as -30°F (-34.4°C). Liebert Lee-Temp Piping Two discharge lines and two liquid lines must be field-installed between the indoor unit and the outdoor condenser. See Figures 103 and 106 for details.
Heat Rejection 6.5 Calculating Refrigerant Volume Using Tables 41, 42 and 43 or 44, calculate the refrigerant charge of the individual sections of the heat rejection system. Add the calculated charge amounts to determine the amount of R-407C refrigerant required for one system. Table 41 Indoor unit refrigerant charge—R-407C Model 50/60 Hz Charge/Circuit, lb. (kg) Liebert XDC160 Table 42 17.5 (8.
Heat Rejection 6.5.1 Liebert XDC DX R-407c Circuit Volume NOTICE Risk of improper lubrication. May cause equipment damage. Liebert XDCs’ refrigerant R-407c circuits with refrigerant charges over 55 lb (24.9 kg) require additional oil. See Figure 109 for the amount required for various charge levels. Once the system has been fully charged with refrigerant, use a hand pump to add the additional oil at the suction side of the system while the system is running.
Heat Rejection 6.6.1 Liebert Drycooler Fan Cycling Control Available on all sizes of standard sound and Quiet-Line drycoolers. A thermostatic control cycles the fan on a single-fan drycooler in response to leaving fluid temperatures. Two or more thermostats are employed on drycoolers with two or more fans to cycle fans or groups of fans in response to leaving fluid temperatures. The thermostat setpoints are listed on the factory-supplied schematic.
Heat Rejection Figure 110 Typical piping arrangement for Liebert XDC and two DDNT880A Expansion Tank ______ Gal. (L) HP GPM (l/s) ft. ____(kW) ____ Per Pump @ ____(kPa) FS PUMP PACKAGE Drycooler No. 1 Model ______ GPM (l/s) ____ P: ___ ft (kPa) Cooling Unit # Model GPM (l/s) P ft (kPa): Cooling Unit # Model GPM (l/s) P ft (kPa): See Note 3 Cooling Unit # Model GPM (l/s) P ft (kPa): Drycooler No.
Heat Rejection 6.8 Site Considerations The drycoolers and pumps should be installed in a location offering maximum security and access for maintenance. Avoid ground level sites with public access and areas that contribute to heavy snow or ice accumulations. Utilize Piggyback drycoolers whenever interior building locations must be used. To ensure adequate air supply, Emerson recommends that the drycoolers be located in an area with clean air, away from loose dirt and foreign matter that may clog the coil.
Heat Rejection Figure 111 Drycooler planning dimensional data—Eight-fan units 87-1/8" (2213mm) 171-1/2" (4356mm) 37-7/8" (962mm) Emerson recommends a clearance of 36" (915mm) on each side for proper operation and component access. 18" (457mm) 70" (1778mm) 164" (4166mm) 1-1/2" (38mm) diameter hole for rigging (typ.4) 86-3/4" (2203mm) See Figure 112 for typical drycooler footprint dimensions.
Heat Rejection Figure 112 Typical drycooler footprint—dimensions 1” (25.4mm) 1-3/4” (44.5mm) 4-1/4” (108mm) 2” (50.8mm) 1-3/4” (44.5mm) 9/16" (14mm) Typical Diameter 4-1/4” (108mm) 2” (50.8mm) Figure 113 Piping connections for 8-fan drycoolers Vent opening (inlet) (typ.2) Inlet connection upper headers (typ.) Outlet connection lower headers (typ.) Table 46 DPN000668 Rev. 1 Standard drycooler piping connection sizes and internal volume Drycooler Model # No. of Internal Coil Circuits No.
Heat Rejection 6.10 Mounting the Drycooler The drycooler must be installed so that it is level within 1/2" (13mm) to ensure proper glycol flow, venting and drainage. For roof installation, mount the drycooler on suitable curbs or other supports; follow all local and national codes. Secure the legs to the mounting surface using a field-supplied 1/2" (13mm) diameter bolt in each of the two 9/16" (14mm) holes in each leg. See Figure 111 for anchor dimensions. 6.
Heat Rejection 6.11.2 Expansion Tanks, Fluid Relief Valves, Air Management and Other Devices An expansion tank must be provided for expansion and contraction of the fluid due to temperature change in this closed system. Vents are required at system high points to vent trapped air when filling the system. A fluid pressure relief valve is also a necessary piping component. All systems must have an air management system to ensure proper component operation and system performance.
Heat Rejection 6.12.1 Line Voltage Wiring ! WARNING Risk of electrical fire and short circuit. Can cause property damage, injury or death. Select and install the electrical supply wire and overcurrent protection device(s) according to the specifications on the unit nameplate(s), per the instructions in this manual and according to the applicable national, state and local code requirements. Use copper conductors only. Make sure all electrical connections are tight.
Heat Rejection Table 49 Minimum recommended control circuit wire size, AWG, 60 Hz models Drycooler Types With Pump Controls DSF DDF 1 1 DSO DDO Number of Fans Control Wire Run, ft (m) 1 2 Number of Fans 3 4 6 8 1 2 3 4 6 8 0-25 (0-7.6) 16 16 16 16 16 16 16 16 16 16 16 16 16 16 26-50 (7.9-15.2) 16 16 16 16 16 16 16 14 16 14 14 14 14 14 51-75 (15.5-22.8) 16 16 16 16 16 16 14 14 14 14 14 12 14 14 76-100 (23.2-30.
Heat Rejection 6.13 Filling Instructions 6.13.1 Preparing the System for Filling It is important to remove any dirt, oil or metal filings that may contaminate the cooling system piping in order to prevent contamination of the fresh glycol solution and fouling of the drycooler piping. The system should be flushed thoroughly using a mild cleaning solution or high-quality water and then completely drained before charging with glycol. Cleaning new systems is just as important as cleaning old ones.
Heat Rejection There are two basic types of additives: • Corrosion inhibitors and • Environmental stabilizers The corrosion inhibitors function by forming a surface barrier that protects the metals from attack. Environmental stabilizers, while not corrosion inhibitors in the strictest sense of the word, decrease corrosion by stabilizing or favorably altering the overall environment.
Heat Rejection 6.13.3 Filling the System Installation of hose bibs at the lowest point of the system is recommended. When filling a glycol system keep air to a minimum. Air in glycol turns to foam and is difficult and time-consuming to remove. (Anti-foam additives are available and may be considered.) Open all operating systems to the loop. With the top vent(s) open, fill the system from the bottom of the loop. This will allow the glycol to push the air out of the top of the system, minimizing trapped air.
Heat Rejection Figure 115 Flow rate, 10 hp, 3500 rpm pump package, Model # 9A31258G3 in aluminum enclosure 200 C 180 Total Head (Ft of Water) 160 140 120 100 Ensure that the tank included in the design has a minimum volume of 6% of the total system volume. 80 60 40 20 0 0 100 200 300 400 500 Flow Rate (GPM) Table 53 SAFM-7820-11 Rev. 2 Liebert Outdoor Control Enclosure specifications Connections Model D10ANTS1317 D10ANTS1317 HP Size Impeller Discharge Suction 10 2 x 1.5 x 7 6.44 1.
Heat Rejection 6.14.1 Electrical Connections WARNING Risk of electric shock. Can cause injury or death. Disconnect all local and remote power supplies before working within. 6.14.2 Hazardous Voltage Power Supply Wiring Wire per national and local electrical codes. Hazardous voltage electrical service is required at the location of the control enclosure. Use the knockouts provided at the bottom of the enclosure. This power supply does not have to be the same voltage as the Liebert indoor unit.
Heat Rejection 6.14.3 Extra-Low Voltage Control Wiring Control interlock between the control enclosure and the indoor unit(s) or other source(s) is required. Multiple indoor units may be connected in parallel if the controlled pumps will feed them all. • Extra-low voltage, non-safety control wiring must be a minimum of 16 GA. (1.665 mm2) for up to 75 feet (22.9m), or not to exceed 1V drop in the control line.
Liebert iCOM 7.0 LIEBERT ICOM Figure 117 Liebert iCOM display—Liebert XDC and Liebert XDP Liebert iCOM display—Liebert XDP Liebert iCOM display—Liebert XDC 7.1 Liebert iCOM Display Layout The Liebert iCOM displays icons and text for monitoring and controlling your Liebert cooling unit. Figures 105 and 106 shows the Liebert iCOM's home screen for the Liebert XDC and Liebert XDP.
Liebert iCOM Figure 119 Liebert iCOM default home screen for Liebert XDP Sensor A Room Data Unit Name Sensor B Room Data Pump Operation represented by animated refrigerant lines UNIT 1 Liebert 57°F 50.0°F set XDP CFC: 30% Sensor A B Temp: 74°F 72°F Hum: 50% 50% Dew Pt: 55°F 54°F Date and Time Alarm/Event History Navigation Prompts 7.2 Available only with Liebert XD Smart Modules 28.02.2012 15 :03 28.02.2012 14:07 (01) UNIT ON 28.02.
Liebert iCOM Figure 121 Smart module parameters—Liebert XDH, Liebert XDO, Liebert XDV MODULE STATUS (page 1 of 20) UNIT 01 U901 NODE 82 AA82 57°F U902 U903 98°F U904 U905 XDH U906 TOP/ 98°F U907 BOTTOM U908 U909 U910 XDH32SK U911 Model / Capacity ON U912 Middle Fan Status ON U913 Top and Bottom Fan Status ONLINE Liebert XDH Each Bank Shown Separately 73°F 15 KW Liebert XDO MODULE STATUS (page 1 of 20) U901 NODE 81 AF01 U902 57°F U903 U904 U905 U906 U907 92°F U908 U909 U910 U911 Model / Capacity U
Liebert iCOM 7.3 Graphical Data Record The Graphical Data Record charts the average temperature from Sensors A and B, the average dew point from Sensors A and B, the supply refrigerant temperature and the supply refrigerant control point. The temperature scales can be changed to expand or compress the data. The time scale also can be altered to any of several selectable values. 7.3.1 Liebert iCOM User Menu Icons and Legend User menus report general cooling unit operations and status.
Liebert iCOM 7.3.2 Liebert iCOM Service Menu Icons and Legend Service menus allow customized settings for site operations. Service Menu screens employ a codingthat begins in “S” and is followed by parameters and information, such as settings.
Liebert iCOM • COMP 1B SHORT CYCLE—Activated when Compressor 1B turns On, Off, then back On, 10 times within 1 hour. The alarm will reset itself when the control turns Compressor 1B On, then Off fewer than 10 times within 1 hour of operating time for 1.5 hours. • COMP 2A SHORT CYCLE—Activated when Compressor 2A turns On, Off, then back On, five times within 10 minutes or 10 times within 1 hour.
Liebert iCOM • LOW REFRIGERANT TEMP—Activated when the supply refrigerant temperature sensor temperature reading drops below the higher of the two calculated dew points, assuming that neither Sensor A or Sensor B has a sensor failure alarm. This alarm will reset when the refrigerant temperature sensor reads the refrigerant temperature above both of the two calculated dew points and the alarm has been acknowledged. This alarm can lock the unit Off.
Liebert iCOM • TANDEM BANK 1 LP—Activated when the low-pressure switch for Tandem Compressor Bank 1 doesn't send the proper signal during normal operation, or during pump-down. This alarm will reset when the main power is cycled or the Tandem Bank 1 LP Code variable in the Service Diagnostics menu is reset to 0. • TANDEM BANK 2 LP—Activated when the low-pressure switch for Tandem Compressor Bank 2 doesn't send the proper signal during normal operation, or during pump-down.
Liebert iCOM 7.6 Liebert XDP Alarms NOTE Alarms must be acknowledged before they can be reset. To acknowledge or silence an alarm, press the ALARM key one time. This will silence the alarm; the red LED will remain illuminated until the alarm is reset. CALL SERVICE—Activated when Customer Input 1 is configured for “Call Service” and 24VAC is applied to the input. This alarm is reset when the 24VAC is removed. CONDENSATION DETECTED (optional)—Activated when water is detected at a cooling module.
Liebert iCOM LOW REFRIGERANT TEMP—Activated when the supply refrigerant temperature sensor temperature reading drops below the higher of the two calculated dew points, assuming that neither Sensor A or Sensor B has a sensor failure alarm. This alarm will reset when the refrigerant temperature sensor reads the refrigerant temperature above both of the two calculated dew points and the alarm has been acknowledged. This alarm can lock the unit Off.
Liebert iCOM SUPPLY CW SENSOR FAILURE—Activated when the control no longer senses a signal from the Supply CW sensor. This alarm will reset when the signal is returned. SUPPLY REFRIGERANT SENSOR FAILURE—Activated when the control no longer senses a signal from the supply refrigerant sensor. This alarm will reset when the signal is returned. UNIT CODE MISSING—Activated when a valid unit code has not been entered and saved. To reset, enter valid unit code, save and execute.
Liebert iCOM Plan wiring runs for Unit-to-Module (U2M) communication when designing the layout of the conditioned space. In addition to general good wiring practices, take into account: • Keep control and communication cables away from power cables to prevent electromagnetic interference. • Do not bend cables to less than four times the diameter of the cable. • Do not deform cables when securing in bundles or when hanging them.
Liebert iCOM 7.9 Network Layout Options The Liebert XDP and Liebert XDC have two CANbus ports each (P2 and P4) on the CAN Isolator in the low voltage side of the electrical box (see Figures 129 and 130). This allows for two chains of the network to be created to minimize the total network length. 7.9.1 Remote Temperature/Humidity Sensor Placement and Connection to the CANbus The Liebert XDP and Liebert XDC are shipped with two remote temperature/humidity sensors.
Liebert iCOM Figure 126 Modules on two chains Liebert XDV Liebert XDP/ XDC Rack Liebert XDV Rack Liebert XDV Rack Liebert XDV Rack Rack Liebert XDV Remote Sensor B Remote Sensor A Liebert XDV Rack Liebert XDV Rack Liebert XDV Rack Liebert XDV Rack Liebert XDV Rack Liebert XDV Liebert XDV Rack Liebert XDV Rack Liebert XDV Rack Liebert XDV Rack Liebert XDV Rack Liebert XDV Liebert XDP/ XDC Remote Sensor B Remote Sensor A Liebert XDP/ XDC Liebert XDV Liebert XDV Rack L
Liebert iCOM 7.9.2 CANbus Maximum Length The CANbus network (the sum of the two CANbus chains) has a maximum length limitation. • If the Liebert XDP or Liebert XDC with iCOM does not have a CAN Isolator, the maximum distance is 150 ft. (46m) total network without measuring the final device voltage. The 150 ft. (46m) total must also include the remote temperature and humidity sensor cable lengths. • If the Liebert XDP or Liebert XDC contains a CAN Isolator, the maximum distance is 300 ft. (91m).
Liebert iCOM Figure 128 CANbus cable plug Shield Wire A Shield Wire Wire Connections 1 2 3 4 5 6 7.11 Black Brown Blue Violet Yellow Green Detail A 1 Pair 1 2 3 Pair32 4 5 Pair 3 6 Pin #1 DPN000786 Pg. 2, Rev 1 Connecting the CANbus Network 7.11.1 Connection to the Liebert XDP or Liebert XDC The Liebert XDP and Liebert XDC have two CANbus ports each (P2 and P4) on the CAN Isolator in the low voltage side of the electrical box (see Figures 129 and 130).
Liebert iCOM Figure 130 P2 and P4 locations on the CAN Isolator P2 P4 301275 Rev. 2 7.11.2 Connecting to the Liebert XDV Smart Modules Liebert XDV CANbus Port Locations The CANbus ports on the Liebert XDV are on the rear of the unit. The cable from the Liebert XDP or Liebert XDC side will be connected to port P66. The leaving cable will be connected to port P67. See Figure 131.
Liebert iCOM 7.11.3 Connecting to the Liebert XDH Smart Modules Liebert XDH CANbus Port Locations The Liebert XDH CANbus ports are located on the side of the electrical box. The cable from the Liebert XDP or Liebert XDC side will be connected to Port P66. The leaving cable will be connected to Port P67. See Figure 132.
Liebert iCOM Figure 133 Single-circuited Liebert XDHs To Liebert XDP #2 or Liebert XDC #2 To Liebert XDP #1 or Liebert XDC #1 To next Liebert XDH or Remote T/H Sensor B connected to Liebert XDP #1 or Liebert XDC #1 Electric Box in Middle of Cooling Module (typical) Electric Box on Bottom of Cooling Module (typical) XDH20/32 First Cooling Module XDH20/32 Next Cooling Module To next Liebert XDH Cooling Module or Remote T/H Sensor B to Liebert XDP #2 or Liebert XDC #2 DPN000785 Pg. 2, Rev.
Liebert iCOM Figure 135 Liebert XDO CANbus port locations Rear of Liebert XDO Top of Liebert XDO Top of Liebert XDO Front of Liebert XDO To next Liebert XDO or Remote T/HSensor B Right Side of Liebert XDO To Liebert XDP/XDC P66 P67 Section A-A A Notes: 1. CANbus signals from the Liebert XDP or Liebert XDC must be connected to P66 on the first Liebert XDO.
Monitoring 8.0 MONITORING The Liebert XDC and Liebert XDP with iCOM allow for control down to the Smart Module level. Many of the Liebert XD system data points can be monitored through a building management system. For specific protocol mapping, refer to the protocol specific reference guide for registers, available at www.liebert.
Monitoring Table 55 Liebert XDC/XDP monitoring points (continued) Data Decription Definitions Ext Air Sensor B Under Temperature (Ext Air Sensor B Temperature) has dropped below (Ext Air Under Temp Threshold). Ext Air Under Temp Threshold Threshold value used in the ([Ext Air Sensor A Under Temperature], [Ext Air Sensor B Under Temperature]...) events. Ext Dew Point Over Temp Threshold Threshold value used in the (Ext Dew Point Over Temperature) event.
Monitoring Table 56 Liebert XD Smart Module monitoring points Data Decription Definitions Cold Aisle Over Temp Threshold Upper threshold value used in the (Cold Aisle Temp Out of Range) event. Cold Aisle Over Temp Threshold Upper threshold value used in the (Cold Aisle Temp Out of Range) event. Cold Aisle Temp Out of Range The air temperature in the cold aisle is either above (Cold Aisle Over Temp Threshold) or below (Cold Aisle Under Temp Threshold).
Monitoring Table 56 Liebert XD Smart Module monitoring points (continued) Data Decription Definitions Sensor Issue One or more sensors are disconnected or the signals are out of range. Sensor Issue - Event Control Enable/disable the activation of the (Sensor Issue) event. If set to 'disabled', the event will not be annunciated. This implies that the event will not be placed in any active event list or in any event history list. Sensor Issue - Event Type The event type for the (Sensor Issue) event.
Specifications and Model Number Nomenclature 9.0 SPECIFICATIONS AND MODEL NUMBER NOMENCLATURE Table 59 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) Module only 18 (8.
Specifications and Model Number Nomenclature Table 60 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 61 Liebert XDH32 specifications Models XDH32BK 1 XDH32SK 1 (60Hz) 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 137 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 = Basic module S = Smart module 152 — * — = Domestic packaging E = Export packaging — = Hard piped P = Pre-charged One-Shot Coupling R = Removable Coupling Revision level
Specifications and Model Number Nomenclature Table 62 Liebert XDO16 specifications XDO16BK 1 XDO16SK 1 (60Hz) Models 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 63 Liebert XDO20 specifications XDO20BK 1 XDO20SK 1 XDO20BS 1 XDO20SS 1 60Hz Models 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 138 Liebert XDO model number nomenclature Example: XDO20BK– –* XD O 20 Liebert Xtreme heat density system K B = Basic module S = Smart module – * - = 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 flu
Specifications and Model Number Nomenclature Table 66 Liebert XDR20 specifications XDR20B1- * Models Cooling Capacity, Nominal, rated at 104ºF (40°C) EAT & 2400ft3/m (68m3/m) XDR20B1P * (Precharged R134a) XDR20B1R * 20.5 kW (5.
Specifications and Model Number Nomenclature Table 68 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 69 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 70 Liebert XDV dimensions—domestic and export Module Dimensions Unpacked Length x Width x Height inches (mm) Shipping Dimensions Length x Width x Height inches (mm) Model Domestic Export Module 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 140 Liebert XDV model number nomenclature Example: XDV10BK– –* XD V 10 B 8 = Model size 10 = Model Size Lie
Specifications and Model Number Nomenclature Table 71 Liebert XDC160 specifications XDC160 Air Models Cooling Capacity, tons (kW) XDC160 Water / Glycol XDC160AA XDC160AM 46 (160) 37 (130) 189192G3 (90-100°F) 189192G5 (65-85°F) See Tables 72, 73 and 74 for Water/Glycol performance data 40% of system nominal capacity (64 kW for 60Hz unit) Minimum Load Electrical Requirements Input 460V-3ph-60Hz 380/415V-3ph-50Hz Full Load Amps 460V-3ph-60Hz 79A Minimum supply wire sizing ampacity 84A Maximu
Specifications and Model Number Nomenclature Table 72 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 74 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 (82.9) Heat Rejection Equipment Drycooler DDNT 940A 2 x DDNT 880A* 6.
Specifications and Model Number Nomenclature Table 75 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 142 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 164 – * Revision level Place holder
Specifications and Model Number Nomenclature NOTES 165
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