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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/2000ft

2

= 0.225kW/ft

2

= 225W/ft

2

3. Determine base cooling requirements:

Typically, perimeter cooling accounts for 2 to 5kW per rack.

2kW x 30 racks = 60kW

Based on 2kW/rack, 60 kW will be handled by the perimeter cooling.

4. Determine Liebert XD cooling requirements:

450kW - 60kW = 390kW

Three Liebert XDP160s would be needed.

5. Calculate the Liebert XDP reserve capacity:

390kW/3 Liebert XDP160s = 130kW

Each Liebert XDP, on average, would bear 130kW of the heat load.

130kW / 160kW = 81% of maximum load

This Liebert XD solution has 19% reserve capacity.

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.
Generally, the Liebert XDO is selected for use in new installations or renovations where the module can be
installed on the ceiling or in the overhead space.
The Liebert XDV is designed to permit mounting directly on top of an equipment cabinet, for ease of
installation in existing facilities. The Liebert XDV may also be suspended from overhead, using suitable
mounting methods.
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 may be mounted on the rear of a
BladeFrame cabinet.
The Liebert XDH is installed among equipment cabinets and is particularly suited for new installations.
The Liebert XDR replaces the rear door of an equipment cabinet.

Vertiv

| Liebert® Xtreme Density™ System Design Manual |

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Содержание Liebert XD Series

Страница 1: ...Liebert Xtreme Density System Design Manual...

Страница 2: ...any installation or operational issues with your product check the pertinent section of this manual to see if the issue can be resolved by following outlined procedures Visit https www VertivCo com e...

Страница 3: ...rements and Select Liebert XD System 21 3 2 Calculate the Heat Load to be Handled by Liebert XD System 21 3 3 Selecting Liebert XD Cooling Modules 22 3 4 Configuring a Liebert XD System 24 3 4 1 Numbe...

Страница 4: ...Mechanical Considerations 65 4 3 Liebert XDCF Installation Considerations 67 4 4 Liebert XDCF Piping Connection Methods and Points 67 4 4 1 Header System Liebert XDCF 68 4 5 Liebert XDH Standard Featu...

Страница 5: ...ols 135 6 7 Typical System configurations 135 6 8 Site Considerations 136 6 9 Dimensions and Weights 137 6 10 Mounting the Drycooler 140 6 11 Glycol Piping 140 6 11 1 Piping Guidelines 140 6 11 2 Expa...

Страница 6: ...165 7 9 2 CANbus Maximum Length 168 7 10 CANbus Cables 168 7 11 Connecting the CANbus Network 169 7 11 1 Connection to the Liebert XDP or Liebert XDC 169 7 11 2 Connecting to the Liebert XDV Smart Mo...

Страница 7: ...Table 9 17 on page 197 The Liebert XD system also performs at high efficiency rates Properly spaced cooling modules and the Liebert XD system s fluid phase change technology combine to reduce a Lieber...

Страница 8: ...w The Liebert XDP is a pumping unit connected to a building chilled water system to control and circulate the refrigerant Liebert XDPs pump refrigerant to Liebert XDCF Liebert XDH Liebert XDO Liebert...

Страница 9: ...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 Figure 1 3 Liebert XDA air flow enhancer...

Страница 10: ...rt XDCF modules on Egenera s BladeFrame EX cabinets 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 ai...

Страница 11: ...operation of the two banks of fans Dual power connections ensure continued fan operation if one of two electrical sources fails Optional smart modules allow remote shutdown fan failure alarms condensa...

Страница 12: ...bert XD Flex Pipes with quick connect couplings one shot for easy connection to the header system When the pre charged option is selected the Liebert XDO and the one shot flexible pipes contain R134a...

Страница 13: ...ne shot or removable for easy connection to the header system The Liebert XDR and flexible pipes are also available pre charged with R134a refrigerant This option requires the one shot connections Fig...

Страница 14: ...r with Liebert XD Flex Pipes with quick connect couplings one shot or removable for easy connection to the header system The Liebert XDV and flexible pipes are also available for shipment with a pre c...

Страница 15: ...Precision Cooling system from operating status to maintenance 1 9 1 Liebert XDC Minimum Load The Liebert XDC s minimum recommended operating load is 40 of system nominal capacity For example a Liebert...

Страница 16: ...ows the cooling modules to be re positioned without interruption in operation 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...

Страница 17: ...rts in the Liebert XD Field Piping Kits are available as Liebert XD Connection Port Kit Each port has a threaded coupling with automatic shutoff when disconnected at the end Each port also has a ball...

Страница 18: ...Vertiv Liebert Xtreme Density System Design Manual 18 This page intentionally left blank...

Страница 19: ...DP Liebert XDC unit and the farthest Liebert XD cooling module in the proposed layout ____________ 14 If an air cooled Liebert XDC is used is an area available for the remote condenser ____________ 15...

Страница 20: ...Vertiv Liebert Xtreme Density System Design Manual 20 This page intentionally left blank...

Страница 21: ...the refrigerant volume of the Liebert XD systems 5 Complete design details including electrical mounting piping etc 3 2 Calculate the Heat Load to be Handled by Liebert XD System When designing a cool...

Страница 22: ...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 cir...

Страница 23: ...ebert XD solution would have to remove 270kW for these racks with higher heat load 300kW 30kW 270kW Module Conditions F C Capacity at Conditions kW Load kW Modules Required Liebert XDH20 98 36 6 22 0...

Страница 24: ...1 Maximum and minimum modules supported by a Liebert XDP or Liebert XDC Different types of Liebert XD cooling modules may be connected to the same Liebert XDP or Liebert XDC as long as the sum of the...

Страница 25: ...les above additional modules may be added as heat loads increase until the 160kW maximum is reached The Liebert XDP 3 in the example in Table 3 3 above which has a load of 130kW could accept modules t...

Страница 26: ...rt s XDA units can boost the airflow to levels necessary to protect critical equipment The Liebert XDA is particularly suited to the hot aisle cold aisle arrangement 3 6 Liebert XDCF Placement The Lie...

Страница 27: ...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 module...

Страница 28: ...y to be achieved spacing between Liebert XDO modules in a row may vary from zero to as much as 6 feet 1 8m When the spacing increases to more than 6 feet 1 8m overall performance of the system may be...

Страница 29: ...abinets In some cases where the required density is less the front to rear spacing of Liebert XDOs in a row will be increased To ensure coverage of the wider spaces between the Liebert XDO modules the...

Страница 30: ...iebert XDP Liebert XDC units required F 8 rounded up 60Hz and 50Hz Room area square feet H I Area served by each Liebert XDO20 H F Spacing of cold aisles center to center typically 12 16 ft 3 7 to 4 9...

Страница 31: ...g of rack equipment depends on proper use of blanking plates in any voids in the rack and good cable management Refer to the user manual supplied with the rack where the Liebert XDR is mounted Keep th...

Страница 32: ...y 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 Placing the module farther back on the top of t...

Страница 33: ...S capacity is needed Table 3 6 Determine required number of Liebert XDV modules example below is Liebert XDV10 3 11 Liebert XDP Liebert XDC Placement The Liebert XDP Liebert XDC may be placed in the c...

Страница 34: ...amples of Expansion and Interlaced Connection of Liebert XD Cooling Modules Figure 3 8 Liebert XDV modules mounted on racks emitting 3kW of heat top view Vertiv Liebert Xtreme Density System Design Ma...

Страница 35: ...Figure 3 9 Liebert XDV modules mounted on racks emitting 5kW of heat top view Vertiv Liebert Xtreme Density System Design Manual 35...

Страница 36: ...Figure 3 10 Liebert XDV modules mounted on racks emitting 8kW of heat top view Vertiv Liebert Xtreme Density System Design Manual 36...

Страница 37: ...ling 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...

Страница 38: ...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 m...

Страница 39: ...iebert XDP or Liebert XDC See Table 3 7 below for recommended pipe sizes and Figure 3 15 on the next page for piping segment locations Pipe Function Key to Piping in Figure 3 15 on the next page Size...

Страница 40: ...r 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 t...

Страница 41: ...rt XDC 48 to 63 3 N A 64 to 95 2 2 96 to 127 1 1 128 to 160 0 0 Table 3 8 Bypass flow controllers for Liebert XDC or Liebert XDP based systems Figure 3 16 Bypass flow controller details dimensions Fig...

Страница 42: ...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 3 19 on the facing page Vertiv Lieb...

Страница 43: ...ails Shutoff Isolation Valves Isolation valves must be installed on the Liebert XDP s refrigerant circuit to permit maintenance on the unit see Figure 3 20 below Figure 3 20 General piping details Ver...

Страница 44: ...e 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 c...

Страница 45: ...Figure 3 22 Liebert XD return header orientation Vertiv Liebert Xtreme Density System Design Manual 45...

Страница 46: ...ping Details Bull Heading Layout Good piping layout employs offsetting connections to promote easier refrigerant flow as shown in Figure 3 24 on the facing page Bull head T connections should be avoid...

Страница 47: ...e lines must be filled with flowing dry nitrogen to prevent excessive oxidation and scale formation inside the piping Prevailing good refrigeration practices must be employed for piping supports leak...

Страница 48: ...Figure 3 25 Two port prefabricated piping for Liebert XD cooling modules Vertiv Liebert Xtreme Density System Design Manual 48...

Страница 49: ...1 1 8 1 3 8 Height H 8 3 4 222 8 3 4 222 Length L 6 3 4 171 Return inch mm Outside Diameter ODR 2 1 8 2 5 8 Height H 10 1 2 267 10 1 2 267 Length L 9 1 8 232 Pipe runs greater than 60 equivalent feet...

Страница 50: ...Figure 3 26 Four port prefabricated piping for Liebert XD cooling modules Vertiv Liebert Xtreme Density System Design Manual 50...

Страница 51: ...222 Length L 6 3 4 171 Return inch mm Outside Diameter ODR 2 1 8 2 5 8 Height H 10 1 2 267 10 1 2 267 Length L 9 1 8 232 Pipe runs greater than 60 equivalent feet Table 3 10 Four port prefabricated pi...

Страница 52: ...1 1 8 1 3 8 Height H 8 3 4 222 8 1 2 216 Length L 6 3 4 171 Return inch mm Outside Diameter ODR 2 1 8 2 5 8 Height H 10 1 2 267 10 1 2 267 Length L 9 1 8 232 Pipe runs greater than 60 equivalent feet...

Страница 53: ...Figure 3 28 Ten port prefabricated piping for Liebert XD cooling modules Vertiv Liebert Xtreme Density System Design Manual 53...

Страница 54: ...le 3 13 below Description Liebert XDV Liebert XDCF Liebert XDO Liebert XDH Liebert XDR One Shot Couplings Removable Couplings One Shot Coupling One Shot Coupling One Shot Coupling Removable Couplings...

Страница 55: ...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 no...

Страница 56: ...Liebert XDP Liebert XDC Pumped R 134a Circuit Volume This is the refrigerant circuit from the Liebert XDP Liebert to the Liebert XD cooling module NOTE System refrigerant volume calculations in Table...

Страница 57: ...8 0 01 lb 0 01 4 ft Flex Pipe existing Liebert XDCF Liebert XDV systems 0 02 lb 0 01 6 ft Flex Pipe existing Liebert XDCF Liebert XDV systems 0 03 lb 0 01 8 ft Flex Pipe existing Liebert XDCF Liebert...

Страница 58: ...page 55 for limits and related details Another way to shorten the total pipe length is to reroute the pipe runs 3 24 Chilled Water Piping The Liebert XDP is offered only with a two way chilled water c...

Страница 59: ...Refer to the Liebert XDP user manual SL 16644 for further information Piping is routed downward from the unit to chilled water piping under the raised floor Connections are made using standard practi...

Страница 60: ...de of the primary air mover such as a Liebert DS in the room if it represents the conditions where all the Liebert XD cooling modules are located It should not be installed where ambient air might cau...

Страница 61: ...four times the diameter of the cable Do not deform cables when securing them in bundles or when hanging them Keep cables away from devices that can introduce noise into them such as machines fluoresce...

Страница 62: ...3 23 Cumulative cable length in Figure 3 32 above The cumulative length of cable used in the example in Figure 3 32 above is 134 ft 40 8m far shorter than the maximum allowable cable run of 580 ft 177...

Страница 63: ...tracted from the allowable length Figure 3 34 Sensor within the daisy chain of Liebert XDV smart modules in CANbus network The modules can also be split into two chains as shown in Figure 3 35 below F...

Страница 64: ...Figure 3 36 Independent smart module and sensor daisy chains in CANbus network Vertiv Liebert Xtreme Density System Design Manual 64...

Страница 65: ...coil and filter dryer It has no moving parts and needs no electricity The Liebert XDCF system see Figure 4 1 below below consists of Liebert XDCF Modules upper and lower models are available Flex Pipe...

Страница 66: ...Figure 4 2 Overall dimensions Vertiv Liebert Xtreme Density System Design Manual 66...

Страница 67: ...on Methods and Points The assembly and connection means used for piping in the Liebert XD system are the same as those used in conventional refrigeration systems Observe all standard practices during...

Страница 68: ...ed connection of two refrigerant sources to enhance system reliability Dual Power Cords and Power Inlets The Liebert XDH is supplied with two 2 detachable power cords 10 ft 3m long that attach to two...

Страница 69: ...echarged with refrigerant Field Installed Flexible Piping for use with prefabricated piping assemblies Field installed flexible piping kits are available in lengths of 4 6 8 and 10 feet 1 2 1 8 2 4 an...

Страница 70: ...Figure 4 5 Liebert XDH dimensions Figure 4 6 Supply and return piping connections Liebert XDH Vertiv Liebert Xtreme Density System Design Manual 70...

Страница 71: ...odule ships with two power cords each 10 feet 3m long with NEMA 5 15 plugs which connect to common three prong outlets see Figure 4 7 below andFigure 4 8 below Figure 4 7 Basic Liebert XDH electrical...

Страница 72: ...connections 37 38 and 82 through 87 can be connected to a monitoring unit such as Liebert SiteScan The remote shutdown condensate detection alarm and fan failure alarms operate independently of each...

Страница 73: ...ns will have pressurized R134a Connection to the prefabricated piping assembly is with a threaded coupler For information on acquiring the correct kit for your installation refer to DPN000780 availabl...

Страница 74: ...Figure 4 10 Dimensional data Liebert XDO hard piped modules Vertiv Liebert Xtreme Density System Design Manual 74...

Страница 75: ...Figure 4 11 Dimensional data Liebert XDO with pre charged option Vertiv Liebert Xtreme Density System Design Manual 75...

Страница 76: ...Figure 4 12 Liebert XDO internal mounting location Vertiv Liebert Xtreme Density System Design Manual 76...

Страница 77: ...Figure 4 13 Top and front electrical access points and terminal block standard Liebert XDO modules Vertiv Liebert Xtreme Density System Design Manual 77...

Страница 78: ...Figure 4 14 High voltage terminal block and connection locations standard Liebert XDO modules Vertiv Liebert Xtreme Density System Design Manual 78...

Страница 79: ...15 Top and front electrical access points Liebert XDO smart modules Figure 4 16 High voltage terminal block connection locations Liebert XDO smart modules Vertiv Liebert Xtreme Density System Design M...

Страница 80: ...e facing page Terminal block connections 37 38 and 82 through 87 can be connected to a monitoring unit such as Liebert SiteScan The remote shutdown condensate detection alarm and fan failure alarms op...

Страница 81: ...e field after installation onto the rack to allow side by side placement of the racks Rack Mount Kit The rack mount kits are constructed of 14 gauge steel to support the Liebert XDR on the rear of the...

Страница 82: ...reducing the performance of the Liebert XDR 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...

Страница 83: ...500 78 8 10 6 65 0 2500 26 10 6 18 3 2500 95 0 18 0 71 6 2500 35 18 0 22 0 2500 104 0 22 1 75 2 2500 40 22 1 24 0 2500 107 6 23 7 76 7 2500 42 23 7 24 8 3000 77 0 10 6 65 5 3000 25 10 6 18 6 3000 86 0...

Страница 84: ...Liebert XDR dimensions with hard piped connections NOTE The handles are for moving the Liebert XDR and can be removed after the module is secured to the rack Vertiv Liebert Xtreme Density System Desig...

Страница 85: ...ert XDR dimensions with one shot connections precharged NOTE The handles are for moving the Liebert XDR and can be removed after the module is secured to the rack Vertiv Liebert Xtreme Density System...

Страница 86: ...t attach to two IEC power inlets in the rear of the module Each power cord has a NEMA 5 15P IEC 320 C14 plug at the opposite end The Liebert 230V 60 50 Hz Liebert XDV module is supplied with two non d...

Страница 87: ...meters Connection style to the module end may be straight or 90 degrees with one shot or removable connections Flex pipes with one shot connections will have pressurized R134a Flex pipes with removabl...

Страница 88: ...Figure 4 21 Liebert XDV dimensions Vertiv Liebert Xtreme Density System Design Manual 88...

Страница 89: ...th H Height PH Piping Height hard piped 18 5 8 473 Piping Height one shot option or removable connection 19 5 8 498 Depth Front 9 7 8 250 Table 4 2 Dimensional data Figure 4 22 Liebert XDV dimensions...

Страница 90: ...Figure 4 23 Suspending single Liebert XDV from Unistruts Vertiv Liebert Xtreme Density System Design Manual 90...

Страница 91: ...Figure 4 24 Suspending single Liebert XDV from the roof structure Vertiv Liebert Xtreme Density System Design Manual 91...

Страница 92: ...Figure 4 25 Alternate mounting methods mounting multiple Liebert XDV modules Vertiv Liebert Xtreme Density System Design Manual 92...

Страница 93: ...to receptacles on the Liebert XDV and to power sources See Figure 4 26 on the next page andFigure 4 27 on page 95 for power connection locations on basic modules see Figure 4 28 on page 96 andFigure...

Страница 94: ...Figure 4 26 Electrical connections for CSA approved Liebert XDV basic modules Vertiv Liebert Xtreme Density System Design Manual 94...

Страница 95: ...Figure 4 27 Electrical connections for CE approved Liebert XDV basic modules Vertiv Liebert Xtreme Density System Design Manual 95...

Страница 96: ...Figure 4 28 Electrical connections for CSA approved Liebert XDV smart modules Vertiv Liebert Xtreme Density System Design Manual 96...

Страница 97: ...a monitoring module such as Liebert SiteScan Make low voltage connections on these modules according to site specific drawings The module must be installed in accordance with national and local wirin...

Страница 98: ...nals 85 86 and 87 are activated by the fan failure alarm T85 is for normally open contact closure requirements T86 is common T87 is used when normally closed contact closure is required The condensate...

Страница 99: ...ant 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 The condensers ut...

Страница 100: ...lb kg 50 60Hz A B C D E F Domestic Export XDC160 74 1880 34 864 33 1 8 841 33 838 72 1829 78 1981 1975 896 2109 957 Dimension does not include the bezel of the disconnect switch or iCOM display Table...

Страница 101: ...locations 50 60Hz Piping Outlet Connection Sizes OD Cu inches A B C D XDC160 2 1 8 1 1 8 1 3 8 7 8 Source DPN001599 Table 5 2 Liebert XDC piping connection sizes Vertiv Liebert Xtreme Density System...

Страница 102: ...l Piping Outlet Connection Sizes OD Cu inches A B C D E F XDC160 2 1 8 1 1 8 1 3 8 7 8 2 1 2 2 1 8 or 2 5 8 Threaded Female Connection 2 1 8 for 1 WRV 2 5 8 for 1 1 4 WRV Table 5 3 Liebert XDC Water G...

Страница 103: ...Figure 5 4 Piping locations floor stand and valve assembly Vertiv Liebert Xtreme Density System Design Manual 103...

Страница 104: ...Figure 5 5 Front view of Liebert XDC and electrical enclosures Figure 5 6 Liebert XDC electrical enclosure knockout locations for field wiring Vertiv Liebert Xtreme Density System Design Manual 104...

Страница 105: ...ebert XDC high voltage connections primary disconnect switch 60Hz models Figure 5 8 Liebert XDC high voltage connections primary disconnect switch 50Hz models Vertiv Liebert Xtreme Density System Desi...

Страница 106: ...Figure 5 9 Liebert XDC high voltage connections secondary disconnect switch 60Hz models Vertiv Liebert Xtreme Density System Design Manual 106...

Страница 107: ...5 10 Liebert XDC high voltage connections secondary disconnect switch 50Hz models Figure 5 11 Liebert XDC heat rejection electrical connection points Vertiv Liebert Xtreme Density System Design Manua...

Страница 108: ...Figure 5 12 Liebert XDC electrical enclosure knockout locations for Extra Low Voltage connections Vertiv Liebert Xtreme Density System Design Manual 108...

Страница 109: ...iebert 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 cann...

Страница 110: ...epending on application details see user manual SL 16644 The control system also monitors unit operation and activates an alarm when any of the specified factory preset conditions are exceeded The Lie...

Страница 111: ...he dimension does not include the bezel of the disconnect switch Table 5 4 Liebert XDP dimensions Figure 5 15 Liebert XDP piping access points and external features Model Pipe Connection Point A B C D...

Страница 112: ...Figure 5 16 Front view of Liebert XDP and electrical enclosure Vertiv Liebert Xtreme Density System Design Manual 112...

Страница 113: ...Figure 5 17 Liebert XDP electrical enclosure knockout location for hazardous voltage wiring Vertiv Liebert Xtreme Density System Design Manual 113...

Страница 114: ...Figure 5 18 Liebert XDP electrical enclosure knockout locations for field wiring Vertiv Liebert Xtreme Density System Design Manual 114...

Страница 115: ...Figure 5 19 Liebert XDP high voltage connections 60Hz Vertiv Liebert Xtreme Density System Design Manual 115...

Страница 116: ...Figure 5 20 Liebert XDP high voltage connections 50Hz Vertiv Liebert Xtreme Density System Design Manual 116...

Страница 117: ...This extra liquid refrigerant reduces the effective condenser surface area available for heat transfer The head pressure control valve also bypasses hot gas into the receiver to warm the liquid and ma...

Страница 118: ...oles for hoisting the unit into position The unit s electrical panel is inside an integral NEMA 3R weatherproof section of the housing 6 1 5 Propeller Fan Aluminum propeller fan blades are secured to...

Страница 119: ...6 2 Mechanical Considerations 6 2 1 Dimensions Figure 6 1 Condenser planning dimensional data Four fan units Vertiv Liebert Xtreme Density System Design Manual 119...

Страница 120: ...Figure 6 2 Condenser planning dimensional data Six fan units Vertiv Liebert Xtreme Density System Design Manual 120...

Страница 121: ...Figure 6 3 Typical condenser footprint dimensions Vertiv Liebert Xtreme Density System Design Manual 121...

Страница 122: ...15 5 1 5 5 15 6 8 7 2 15 10 2 10 6 15 13 6 14 0 20 575 1 4 1 8 15 2 8 3 2 15 4 2 4 6 15 5 6 6 0 15 8 4 8 8 15 11 2 11 6 15 FLA Full Load Amps WSA Wire Size Amps OPD Maximum Overcurrent Protection Devi...

Страница 123: ...system is running at low loads A double riser system is constructed of a large diameter riser with a trap at the base and a riser with a smaller diameter in parallel At full load operation the refrig...

Страница 124: ...ad 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...

Страница 125: ...in a refrigeration system Maintaining system cleanliness is extremely important because the oil will tend to bring any foreign matter back to the compressor Refer to the ASHRAE refrigeration handbook...

Страница 126: ...Figure 6 5 Installation data Liebert Lee Temp one circuit four fan model Vertiv Liebert Xtreme Density System Design Manual 126...

Страница 127: ...Figure 6 6 Installation data Liebert Lee Temp one circuit high ambient six fan model Vertiv Liebert Xtreme Density System Design Manual 127...

Страница 128: ...Figure 6 7 Liebert XDC piping schematic and Liebert Lee Temp heater pad wiring Vertiv Liebert Xtreme Density System Design Manual 128...

Страница 129: ...Figure 6 8 General arrangement air cooled Liebert XDC Liebert Lee Temp Control Vertiv Liebert Xtreme Density System Design Manual 129...

Страница 130: ...8 100 30 1 1 8 1 1 8 150 45 1 3 8 1 1 8 200 60 1 3 8 1 1 8 Double risers are required when hot gas vertical rise is 15ft 4 6m or more Source DPN000937 Pg 3 Rev 11 Table 6 7 Recommended refrigerant li...

Страница 131: ...Figure 6 9 DCSL616 piping connections two refrigerant circuits connected for parallel flow Vertiv Liebert Xtreme Density System Design Manual 131...

Страница 132: ...1 3 8 1 1 8 Double risers are required when hot gas vertical rise is 15 feet or more Source DPN000937 Pg 4 Rev 11 Table 6 8 Recommended refrigerant line sizes for DCSL616 Figure 6 10 DCSL616 piping c...

Страница 133: ...0 17 5 8 0 Table 6 9 Indoor unit refrigerant charge R 407C Outdoor Ambient F C Model 50 60 Hz Receiver Part Charge Circuit lb kg 30 to 100 34 to 38 DCSL415 185010G2 below G4 below 200 91 30 to 105 34...

Страница 134: ...ing The amount of oil added by field service must be recorded on a tag attached at the tandem the amount added along with the date it was added This will be documented on a tag located at the tandem c...

Страница 135: ...atures The thermostat setpoints are listed on the factory supplied schematic They typically range from 35 to 45 F 2 to 7 C for GLYCOOL applications and 65 to 75 F 18 to 24 C for glycol applications 6...

Страница 136: ...em using multiple indoor and outdoor units on a common piping loop Larger systems may also benefit from an air separator not shown Refer to SL 10080 available at www VertivCo com for further details o...

Страница 137: ...surface to ensure proper glycol flow venting and drainage For roof installation mount the drycooler on suitable curbs or other supports in accordance with local codes Allow adequate space for pump pac...

Страница 138: ...Figure 6 13 Drycooler planning dimensional data Eight fan units Vertiv Liebert Xtreme Density System Design Manual 138...

Страница 139: ...Figure 6 14 Typical drycooler footprint dimensions Figure 6 15 Piping connections for 8 fan drycoolers Vertiv Liebert Xtreme Density System Design Manual 139...

Страница 140: ...amage To avoid the possibility of burst pipes the system installer must supply and install a relief valve in the system Galvanized pipe must not be used in glycol systems To help prevent piping failur...

Страница 141: ...em 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 syste...

Страница 142: ...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 m...

Страница 143: ...eld supplied copper wire is required for connection between like numbered Terminals 70 71 on both units for remote On Off control of the drycooler synchronized with the indoor unit Wiring must be size...

Страница 144: ...e AWG 60 Hz models continued Control Wire Run m ft Drycooler Types With Pump Controls DSF DDF DSO DDO Number of Fans 1 1 1 2 3 4 6 8 1 2 3 4 6 8 0 7 6 0 25 1 0 1 0 1 0 1 0 1 0 1 0 1 0 1 5 1 0 1 5 1 5...

Страница 145: ...ur system In many cases in both old and new systems special cleaners are needed to remove scale rust and hydrocarbon foulants from pipes manifolds and passages Clean heat transfer surfaces are importa...

Страница 146: ...ethylene glycol and propylene glycol when pure are generally less corrosive to the common metals of construction than water itself Aqueous solutions of these glycols however assume the corrosivity of...

Страница 147: ...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 Fill to approximately 80 of calculated capacity Fill slowly from t...

Страница 148: ...Figure 6 16 Liebert Outdoor Control Enclosure installed Figure 6 17 Flow rate 10 hp 3500 rpm pump package Model 9A31258G3 in aluminum enclosure Vertiv Liebert Xtreme Density System Design Manual 148...

Страница 149: ...rdous 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 t...

Страница 150: ...Install extra low voltage control wiring 24V from Terminals 70 71 on the wire raceway in the compressor compartment of the indoor unit to Terminals 70 71 of the control enclosure Extra low voltage con...

Страница 151: ...ntactors relays selector switch and a flow switch This circuit controls the start of the pumps and provides contact closure to interlock the drycooler s control circuit Once the circuit is closed 24V...

Страница 152: ...Vertiv Liebert Xtreme Density System Design Manual 152 This page intentionally left blank...

Страница 153: ...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 Lieber...

Страница 154: ...Figure 7 2 Liebert iCOM default home screen for Liebert XDC Figure 7 3 Liebert iCOM default home screen for Liebert XDP Vertiv Liebert Xtreme Density System Design Manual 154...

Страница 155: ...modules It does not display a system view which would include units other than the cooling modules Figure 7 4 below The Liebert iCOM will also display smart module parameters Figure 7 5 on the next p...

Страница 156: ...d 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 Us...

Страница 157: ...operational setpoints Unit Diary Shows all program changes and maintenance performed Maintenance Wellness Settings Shows all maintenance records calculates next maintenance date Diagnostics Service Mo...

Страница 158: ...control turns Compressor 2B On then Off fewer than 10 times within 1 hour of operating time for 1 5 hours COMPRESSOR S LOCKOUT Activated when Customer Input 1 is configured for Comp Lock PD and 24VAC...

Страница 159: ...automatically as soon as memory consumption falls below the threshold LOW REFRIGERANT TEMP Activated when the supply refrigerant temperature sensor temperature reading drops below the higher of the t...

Страница 160: ...nses a signal from Sensor A This alarm will reset when the signal is returned and the alarms has been acknowledged SENSOR B FAILURE Activated when the controls no longer senses a signal from Sensor B...

Страница 161: ...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...

Страница 162: ...l pressure switch does not sense differential pressure set at 6 psi 41kPa 0 41 bars After attempting to start Pump 2 three times the Liebert XDP will automatically switch to the other pump to establis...

Страница 163: ...other pump until it is able to establish flow differential pressure If this cycling occurs for 30 minutes and the Liebert XDP still does not establish flow a PUMP SHORT CYCLE alarm will be present Th...

Страница 164: ...connected to the Liebert XDP or Liebert XDC that supplies the modules with refrigerant Figure 7 6 Liebert XD system with CANbus NOTE Only six Liebert XDV10S are shown A maximum of 16 Liebert XDV10S a...

Страница 165: ...re Humidity Sensor Placement and Connection to the CANbus The Liebert XDP and Liebert XDC are shipped with two remote temperature humidity sensors One sensor should be placed closer to the Liebert XDP...

Страница 166: ...Figure 7 7 Modules on a single chain Vertiv Liebert Xtreme Density System Design Manual 166...

Страница 167: ...Figure 7 8 Modules on two chains Vertiv Liebert Xtreme Density System Design Manual 167...

Страница 168: ...oltage must be measured 7 10 CANbus Cables The Liebert XDP may be connected to the Smart Modules with a CANbus cable The shielded cable consists of three pairs of twisted wires with a 6 pin RJ12 conne...

Страница 169: ...le plug 7 11 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 volta...

Страница 170: ...Figure 7 11 CAN Isolator location within the Liebert XDP XDC Vertiv Liebert Xtreme Density System Design Manual 170...

Страница 171: ...t 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 c...

Страница 172: ...DH 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 w...

Страница 173: ...ns For Liebert XDHs with both top and bottom circuits tied to the same Liebert XDP or Liebert XDC the top and bottom control boards must be tied together using a CANbus cable with a length of 6 25ft 1...

Страница 174: ...the Liebert XDP or Liebert XDC that they are mechanically connected to For Liebert XDHs with the top and bottom circuits tied to different Liebert XDPs or Liebert XDCs the control boards must be conne...

Страница 175: ...terminated The remote temperature and humidity sensors are terminated at the factory The Liebert XD smart modules are not terminated at the factory Improper termination will cause communication error...

Страница 176: ...are shipped from the factory unterminated If the smart module is the last device in the chain in other words the last module is not connected to a remote sensor the smart module control board must be...

Страница 177: ...re Compressor 1B Short Cycle Compressor 1B short cycle A short cycle is defined as turning On and Off a number of times over a set time period Compressor 1B State Compressor 1B operational state Compr...

Страница 178: ...Position Hot gas Valve 1 open position Hot Gas Valve 2 Open Position Hot gas Valve 2 open position Maintenance Ramp The ratio of operations performed to the calculated operations available between mai...

Страница 179: ...acity Cooling capacity in use expressed as a percentage of the maximum rated capacity Cooling Capacity Cooling capacity in use expressed in kilowatts Ext Fan Issue One or more fans are not operating w...

Страница 180: ...or in any event history list Sensor Issue Event Type The event type for the Sensor Issue event Fan Economy Mode Mode in which system secondary fans are to be controlled Fan State Current operational s...

Страница 181: ...nce Completed Maintenance has been completed on the unit System Operating State Reason The reason the system is in the current operating state System Date and Time The system date and time Table 8 3 S...

Страница 182: ...Vertiv Liebert Xtreme Density System Design Manual 182 This page intentionally left blank...

Страница 183: ...m Width 13 7 16 341mm Depth 7 5 16 186mm Weight lb kg Module only 18 8 2 Shipping weight 30 lb 13 06 kg Pipe connections Refrigerant Supply from Liebert XDP Liebert XDC 1 2 threaded one shot coupling...

Страница 184: ...tts 600 575 Dimensions inches mm Height Module Only 78 1981 Height Including Pipe Connections 80 2032 Width 12 305 Depth 42 1067 Weight lb kg Module Only 233 106 233 106 Shipping Weight 317 144 317 14...

Страница 185: ...00 1150 Dimensions inches mm Height Module Only 78 1981 Height Including Pipe Connections 80 2032 Width 12 305 Depth 42 1067 Weight lb kg Module Only 246 112 246 112 Shipping Weight 330 150 330 150 Nu...

Страница 186: ...provided internal to module Full Load Amps 2 7A 120V 1 50 230V 1 50 230V Wire Size Amps 3 4 2 0 2 0 Overcurrent Protection Device 15 15 15 Power consumption nominal watts 335 350 350 Dimensions inches...

Страница 187: ...d 50 F 10 C or lower dew point Electrical Requirements Input Voltage 1ph 60Hz 120V 1ph 60Hz 220 240V 1ph 50Hz 220 240V Input Power Connections Terminal blocks provided internal to module Full Load Amp...

Страница 188: ...bert XDO20 specifications continued Figure 9 3 Liebert XDO model number nomenclature Option Liebert XDO 60Hz Models Liebert XDO 50Hz Models Lighting Fixtures ship loose 2 Liebert XDOs per lighting uni...

Страница 189: ...erature 50 F 10 C or lower dew point Dimensions inches mm Height Including Pipe Connections 82 3 8 2093 83 1 2 2121 80 2032 Width With Handles Attached 27 3 8 695 Handles Removed 23 1 2 597 Depth 6 1...

Страница 190: ...5Tons Conditions Capacity rating is 55 F 13 C Entering Fluid Temperature and 50 F 10 C or lower dew point rear air inlet Electrical Requirements Input 120V model 1ph 60 Hz 230V model 1ph 60 Hz 230V m...

Страница 191: ...Finish Black matte finish heat fused powder coat Options Smart Module control board factory installed Dry contact 24VAC 1A maximum Pre Charged Refrigerant R 134a refrigerant one shot connections Agenc...

Страница 192: ...t Bottom inlet airflow may be less depending on restrictions inside cabinet Audible noise 78 dBa sound power 73 dBa sound power Pipe Connections without Liebert Flex Pipe Refrigerant supply from Liebe...

Страница 193: ...F 189192G5 65 85 F Cooling Capacity tons kW 46 160 37 130 See Table 9 14 on page 195 Table 9 15 on page 195 and Table 9 16 on page 196 for Water Glycol performance data Minimum Load 40 of system nomin...

Страница 194: ...ert XD cooling modules 1 1 8 Liebert XD Coolant return from Liebert XD cooling modules 2 1 8 Liquid line DX circuit 7 8 Hot gas line DX circuit 1 3 8 Heat Rejection Equipment 95 F 35 C ambient air coo...

Страница 195: ...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 206 Pressure Drop psi ft water 37 2 85...

Страница 196: ...Drop psi ft water 6 5 15 1 2 7 6 3 Glycol pump package 10HP 460V D10ANTS1317 208V D10YNTS1317 Pump Control Package 208V RP020HY04S0758 Pump Control Package 460V RP020HA08S0758 Pump Total Head 204 GPM...

Страница 197: ...frigerant supply to Liebert XD cooling module 1 1 8 OD Cu Refrigerant return from Liebert XD cooling module 2 1 8 OD Cu Chilled water supply and return 2 5 8 OD Cu Control valve 2 way 2 nominal 35 PSI...

Страница 198: ...Figure 9 7 Liebert XDP model number nomenclature Vertiv Liebert Xtreme Density System Design Manual 198...

Страница 199: ......

Страница 200: ...logos referred to are trade names trademarks or registered trademarks of their respective owners While every precaution has been taken to ensure accuracyand completeness herein Vertiv Co assumes no re...

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