Liebert® Air Cooled, Direct Drive Condensers
Contents
1. 616 6 1560 708 144x36x97 291 8 2 2010 912 145x37x97 301 8 5 409 6 1620 735 8660x910x2460 2070 939 3680x940x2460 i 830 8 1930 875 2430 1102 184x36x97 185x37x97 1010 8 2910 1321 4 79x910x2460 372 10 5 3410 1548 4700x940x2460 384 10 9 572 8 2575 1168 3075 1395 Site Preparation Figure 4 Condenser planning dimensional data One fan and two fan units TE 43 9 16 91 1 2 2324mm 43 9 16 4 1106mm 37 7 8 ES 37 7 8 962mm 18 emy Note 84 Overall height to the top of fan guard 2134mm 43 1 8 1095mm 43 3 16 1097mm Emerson recommends a clearance of 36 915mm on each side for proper operation and component ANCHOR PLAN ACCOSS 42 1067mm d WT Electro one an 41 3 16 E Condenser 1046mm i m ANCHOR PLAN See Figure 7 for typical condenser 49 82 2083mm footprint dimensions 1067 mm pe ur is i WT Electric Box Legs supplied with Two Fan 41 3 16 End Liebert Lee Temp Condenser joco option only x B o Site Preparation Figure5 Condenser planning dimensional data Three fan and four fan units 43 9 16 1106mm 43 9 16 1106mm 18 457mm 124 3150mm 131 1 2 3340mm 37 7 8 UN 171 1 2 4356mm 70 x 778mm Eyebolts for Lifting 43 3 16 1097mm 164 Note2. 4166mm Overall height to the top of fan guard 43 1 8 1095mm Emerson recommends a clearance 43 3 16 of 36 915mm on each side for 1097mm proper operation and component access ANCHOR PLAN l 122 3099 mm gt See Figure 7 for typical 42 condenser footprint dimensions ececccepeg 1067mm H m Ju Box Legs supplied with Three Fan End Liebert Lee Temp Condenser wats option only _ omy A ee A Sees A ANCHOR PLAN ap 2083 mm gt 80 gt 1067 mm c EU Do UE k Ja Electric Box Legs supplied with Four Fan 41 3 16 End Liebert Lee Temp Condenser l 046 mm cp option only fo Site Preparation Figure 6 Condenser planning dimensional data Six and eight fan units we 87 1 8 2213mm 131 1 2 86 3 4 3150mm 2203mm Overalll height to the top of the fan guard is 43 1 8 1095mm ANCHOR PLAN 87 1 8 2213mm 171 1 2 4356mm 22 A 457mm y 1778mm 164 1 1 2 38mm 4166mm diameter hole for rigging typ 4 Emerson recommends a clearance of 36 915mm on each side for proper operation and component 122 3099 mm 42 1067mm en basas 1 gt ty Electri j E leo e Legs supplied with Six Fan End Liebert Lee Temp Condenser option only Electric F Box Legs supplied with End Liebert Lee Temp option only Bi access See
3. Check Service Valves Bypass SINGLE CIRCUIT SHOWN a optional ME i Factory Piping ii Optional Piping i y ES A Ill SS Field Piping Compressor Components are not supplied by Liebert but are recommended for proper LL circuit operation and maintenance T Trap at base of risers Components supplied by Liebert and i longer than 5ft 1 5m must be field installed 9 l Various compressor types may be available DPNO00681 Rev 1 34 Inspection and Installation 3 10 3 Refrigerant Oil Addition Procedures 3 11 Consult the indoor unit s user or installation manual to determine whether additional oil is required for each circuit Factors such as compressor condenser type piping lengths and total circuit refrigerant charge influence this requirement System Dehydration Leak Test and Charging Procedures Procedures for leak check and evacuation of the entire refrigeration system are contained in the indoor unit s user or installation manual Use the proper manual section corresponding to the winter control system used on the condenser VFD Fan Speed Control or Liebert Lee Temp Control and the refrigerant to be charged into the system 35 Checklist for Completed Installation 4 0 CHECKLIST FOR COMPLETED INSTALLATION 4 1 Moving and Placing Equipment ___ 1 Unpack and check received material 2 Proper clearance for service access has been maintained around t
4. 5 1 5 2 6 0 6 1 6 2 Piping AL A A BEN AA UNCERT RI a 36 DEE a A AS A AAA A it we 36 OPERATION ue errar Ad 37 Startup Checklist tae tae he A EEN EI A TUI ee E 37 w cidq mec M ELEME 37 SYSTEM MAINTENANCE 00d A Sa ae we eee ee ee eee ba aes 38 General PPOCOUTES 4 2 oss rd di end See was ee wee RA 38 Special Procedur s es a A eb E A o DER Eu tad t 39 6 2 1 Condenser Cleaning eee eee ence een n s 39 6 2 2 Maintenance Inspection Checklist llle 40 if Figure 1 Figure 2 Figure 3 Figure 4 Figure 5 Figure 6 Figure 7 Figure 8 Figure 9 Figure 10 Figure 11 Figure 12 Figure 13 Figure 14 Figure 15 Figure 16 Figure 17 Figure 18 Figure 19 Figure 20 Figure 21 Figure 22 Figure 23 Figure 24 Figure 25 Figure 26 Figure 27 Figure 28 Figure 29 Table 1 Table 2 Table 3 Table 4 Table 5 Table 6 Table 7 Table 8 Table 9 Table 10 Table 11 Table 12 Table 13 Table 14 FIGURES Liebert two fan condenser o Product model nomenclature 0 cece hh hh Typical system configuration indoor unit and outdoor condenser and field piping Condenser planning dimensional data One fan and two fan units 0 0 0 0 eee eee Condenser planning dimensional data Three fan and four fan units 00000 eee ae Condenser planning dimensional data Six and eight fan units 0 0 0 ccc eee Typical condenser footprint dimensions o Piping connection locations for 1 2 3 a
5. 66 DCDL510 W 0410 200 91 DCDL616 W 0060 145 66 DCDL830 185011P1 260 118 Liebert Quiet Line Models DCSL063 1C19982P1 100 45 DCST119 W 0050 125 57 DCSL127 W 0050 y 125 57 DCSL143 W 0060 145 66 DCST214 W 0410 200 91 DCST286 W 0410 200 91 DCDL119 1C19982P1 100 45 DCDL127 1C19982P1 100 45 DCDL143 W 0050 125 57 DCDT214 W 0050 2 125 57 DCDL286 W 0060 145 66 DCDT409 W 0410 200 91 DCDT572 W 0410 200 91 R 410A Models DCSL28K 195315P1 125 57 DCSL60K 195316P1 1 145 66 DCSL90K 196702P1 200 91 1 Matchup for 35 to 105 F 2 to 41 C design temperature range 2 Matchup for 30 to 105 F 34 to 41 C design temperature range 13 Site Preparation 2 3 Refrigerant Planning Values Planning for the refrigerant requirements of the completed system is the addition of the charges from Indoor Unit Condenser including Liebert Lee Temp receiver if used and the interconnecting piping Tables 4 and 7 provide the approximate charge required for the condensers and the interconnecting piping Consult indoor unit manuals for indoor unit charge requirements These values can be used for obtaining adequate refrigerant for the system but should not be used for final charging Consult indoor unit manual for charging procedures Table 4 R 22 and R
6. EMC filter Tab fully extended EMC filter disconnected 3 9 Electrical Field Connection Descriptions Figure 24 Electrical field connections for Fan Speed Control Condensers Electric service connection terminals when factory Electric service connection disconnect is NOT supplied and fuse block Factory wired to 24V Class 2 control piu S Control interlock 70 71 Field supplied Class 2 wiring to interlock condenser 24V controls to Liebert room unit 7 8 in 22 2mm diameter hole provided in bottom of electric box Electric service connection terminals when factory disconnect is supplied Factory installed disconnect switch optional Electric service entrance A 7 8 in 22 2mm diameter hole in a 1 1 8 in 28 6mm knockout provided in bottom of electric box Factory wired to components on electric panel Earth ground bar optional on 50Hz only Connection terminals with factory ground from each high voltage component for field supplied earth grounding wire Electric service not by Liebert Single phase for condenser models CSF CDF with single fan motor Three phase for all other condenser models Earth ground connection 60Hz Connection terminals for field supplied earth grounding wire Earth ground connection 60Hz Connection terminal for field when factory disconnect is NOT supplied earth grounding wire DPNO000666 supplied when factory disconnect is Rev 0 supplie
7. 20 N A N A N A N A N A N A 460 1 8 2 3 15 3 5 4 0 15 5 2 5 7 15 6 9 7 4 15 N A N A N A N A N A N A Liebert Lee Temp Controlled Fan Cycling 208 230 3 5 4 4 15 7 0 7 9 15 10 5 11 4 15 14 0 14 9 20 21 0 21 9 25 28 0 28 9 35 460 3 17 21 15 3 4 3 8 15 51 55 15 6 8 72 15 10 2 10 6 15 13 6 14 0 20 575 14 1 8 15 2 8 3 2 15 4 2 46 15 56 6 0 15 84 88 15 11 2 11 6 15 FLA Full Load Amps WSA Wire Size Amps OPD Maximum Overcurrent Protection Device Table 9 60Hz condenser data Liebert Quiet Line Liebert Lee Temp controlled fan cycling Model ph 063 119 127 143 214 286 409 572 of Fans 1 2 3 4 6 8 Input Voltage ph FLA WSA OPD FLA WSA OPD FLA WSA OPD FLA WSA OPD FLA WSA OPD FLA WSA OPD 460 3 09 1 1 15 1 8 2 0 15 2 7 2 9 15 3 6 3 8 15 5 4 56 15 7 2 74 15 575 0 7 0 9 15 1 4 1 6 15 2 1 2 3 15 2 8 3 0 15 4 2 4 4 15 56 58 15 FLA Full Load Amps WSA Wire Size Amps OPD Maximum Overcurrent Protection Device 23 Inspection and Installation Table 10 50Hz condenser full load amp values Liebert Quiet Line Con
8. 407C refrigerant required approximate Approximate R 22 Refrigerant Needed Approximate R 407C Refrigerant Needed Single Circuit Dual Circuit Single Circuit Dual Circuit Ib kg Ib circuit kg circuit Ib kg Ib circuit kg circuit Standard Lee Temp Lee Temp Lee Temp Lee Temp Condenser FSCor includes FSCor includes FSCor includes FSCor includes Models VFD receiver VFD receiver VFD receiver VFD receiver 083 5 2 3 27 12 3 3 1 4 N A 5 2 3 26 11 8 3 1 4 N A 104 8 3 6 39 17 7 7 8 2 21 9 5 8 3 6 37 16 8 7 8 2 20 9 0 165 15 6 8 53 24 0 5 2 3 27 12 3 15 6 8 50 22 7 5 2 3 26 11 8 205 20 9 1 76 34 5 7 3 2 56 25 3 19 8 6 72 32 7 7 3 2 54 24 4 251 19 8 6 75 34 0 10 4 6 38 17 2 18 8 2 71 32 2 10 4 6 36 16 3 308 29 13 2 113 51 3 11 5 0 58 26 3 28 12 7 107 48 5 11 5 0 55 24 9 415 54 24 5 210 95 0 25 11 3 107 48 4 51 23 1 200 90 8 24 10 9 102 46 2 510 72 32 7 N A 30 13 6 149 67 6 68 30 8 N A 29 13 2 142 64 4 616 N A N A 27 12 3 113 51 3 N A See Table 5 26 11 8 108 49 0 830 N A N A 53 24 210 95 1 N A N A 51 23 1 200 90 8 1010 N A N A 60 27 2 154 69 9 N A N A 57 25 9 147 66 7 Liebert Quiet Line Condenser Models 063 N A 39 17 7 N A N A N A 37 16 8 N A N A 119 N A 50 22 7 N A 27 12 3 N A 48 21 8 N A 26 11 8 127 N A 76 34 5 N A 38 17 2 N A 72
9. For roof installation mount the condenser 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 Figures 4 5 and 6 for anchor dimensions Electrical Supply Preparation Line voltage electrical service is required for all models Refer to equipment nameplate regarding wire size and circuit protection requirements Electrical service must conform to national and local electrical codes Refer to Figures 24 25 and 26 for electrical service entrances into unit Refer to electrical schematic when making connections Each unit is shipped from the factory with all internal unit wiring completed A WARNING Risk of electric shock Can cause injury or death Disconnect all local and remote electrical power supplies before working within the electrical enclosure The line side of the disconnect remains energized when the disconnect is Off Use a voltmeter to verify that the electrical power is Off before performing any electrical and or mechanical service and or maintenance operations A WARNING Risk of high speed moving parts Can cause injury or death The fan s blades can start to rotate unexpectedly when the power is On Disconnect all local and remote electrical power supplies before working within the fan compartment Use a voltmeter to verify that the electrical power is Of
10. VFD and Liebert Quiet Line Condensers and is optional on Fan Speed Control and standard Liebert Lee Temp condensers However a site disconnect may be required per local code to isolate the unit for maintenance Route the supply power to the site disconnect switch and then to the unit Route the conduit through the hole provided in the cabinet Connect earth ground to lug provided near terminal board 22 Inspection and Installation NOTE Liebert Lee Temp and Liebert Quiet Line Condensers require a separate line voltage electrical supply for the heated receivers See Table 11 for power requirements Table 8 60Hz condenser data Model 083 104 28K 165 205 60K 251 308 90K 415 510 616 830 1010 of Fans 1 2 3 4 6 8 Input Voltage ph FLA WSA OPD FLA WSA OPD FLA WSA OPD FLA WSA OPD FLA WSA OPD FLA WSA OPD Fan Speed Controlled 208 230 48 60 15 l 460 1 25 31 15 575 19 24 158 208 230 83 95 15 11 8 13 0 15 15 3 16 5 20 23 6 24 8 30 30 6 31 8 40 460 3 42 48 15 59 65 15 76 82 15 11 8 12 4 15 15 2 15 8 20 575 33 3 8 15 47 52 15 6 1 6 6 15 94 99 15 122 12 7 15 VFD Controlled 0 208 230 A 3 7 46 15 7 2 8 1 15 10 7 11 6 15 14 2 15 1
11. control condensers 00055 VFD and Fan Speed Control condenser piping l c ees Liebert Lee Temp head pressure control condenser piping cece eee ee eee General arrangement Air cooled models with Liebert Lee Temp control TABLES Condenser shipping weights dimensions and volume approximate lese Condenser physical datar eccL E EX RE IRR a BD PON Liebert Lee Temp receiver weights and cross reference to condenser l liess R 22 and R 407C refrigerant required approximate llle R 407C refrigerant required for DCSL616 condensers for Liebert XDC approximate R 410A refrigerant required approximate 0 0 0 0 00 ccc eee s Interconnecting piping refrigerant charge o o ooooooooooo ea 60Hz condenser data 60Hz condenser data Liebert Quiet Line Liebert Lee Temp controlled fan cycling 50Hz condenser full load amp values Liebert Lee Temp receiver electrical data 50Hz and 60Hz 0 cee Minimum recommended control circuit wire size AWG 60Hz models 0005 Minimum recommended control circuit wire size mm 50 Hz models A A NO iii Introduction 1 0 INTRODUCTION 1 4 Product Description and Features The Liebert condenser is low profile direct drive propeller fan type air cooled unit suitable for mounting outdoors It provides for the heat rejection of either one o
12. 32 6 N A 36 16 3 143 N A 126 57 2 N A 64 29 0 N A 120 54 5 N A 61 27 7 214 N A 161 73 0 N A 81 36 7 N A 153 69 4 N A 77 34 9 286 N A 196 88 9 N A 125 56 7 N A 186 84 4 N A 119 54 0 409 N A N A N A 152 68 9 N A N A N A 148 67 2 572 N A N A N A 196 88 9 N A N A N A 186 84 4 Table 5 R 407C refrigerant required for DCSL616 condensers for Liebert XDC approximate Refrigerant Per Circuit Liebert Lee Temp Receiver Tank inc receiver Model Receiver Length in mm Ib kg W 0410 48 1219 164 75 DCSL616 179701P1 96 2438 254 115 2 Table 6 R 410A refrigerant required approximate Single VFD Liebert Lee Temp Circuit Model Ib kg inc receiver Ib kg 28K 7 3 2 41 18 6 60K 16 7 3 75 34 0 90K 25 11 3 109 49 4 14 Site Preparation Table 7 Interconnecting piping refrigerant charge Line Size R 22 Ib 100 ft kg 30m R 407C Ib 100 ft kg 30m R 410A Ib 100 ft kg 30m O D in Liquid Line Hot Gas Line Liquid Line Hot Gas Line Liquid Line Hot Gas Line 3 8 3 8 1 7 3 7 1 7 1 2 7 3 3 3 6 9 3 1 5 0 2 1 5 8 11 7 5 3 2 1 1 0 11 0 5 0 2 2 1 0 10 0 4 2 1 1 0 51 3 4 16 6 7 5 3 0 1 4 15 7 7 1 3 1 1 3 13 0 5 7 1 5 0 67 7 8 24 4 11 1 4 4 2 0 23 0 10 4 4 5 1 9 2 3 1 0 1 1 8 41 4 18 9 7 8 8 5 39 3 17 8 7 8 8 5 3 9 1 8 1 3 8 63 3 28 7 11 8 5 4 59 8 2
13. 50 feet 46m equivalent length Keep piping clean and dry especially on units with POE oil R407C R410A or R22 refrigerant Avoid piping runs through noise sensitive areas Do not run piping directly in front of indoor unit discharge airstream Refrigerant oil do not mix oil types or viscosities Consult indoor unit for refrigerant type and oil requirements NOTE Failure to use compressor oils recommended by compressor manufacturer will void compressor warranty Consult Emerson or the compressor manufacturer for further recommendations or if you have questions about compressor oils Refer to ASHRAE Refrigeration Handbook for general good practices for refrigeration piping The Liebert indoor cooling unit has a factory installed high pressure safety switch in the high side refrigerant circuit A pressure relief valve is provided with Liebert Lee Temp condensers Consult local building codes to determine if the Liebert Fan Speed Control FSC and VFD condensers will require field provided pressure relief devices A fusible plug kit for Liebert FSC and VFD condensers is available for field installation 31 Inspection and Installation 3 10 2 Field Piping Installation One discharge line and one liquid line must be field installed for each circuit of the indoor unit and the outdoor condenser s Dual circuit condensers are available for most dual circuit indoor unit applications Refer to Figures 27 28 and 29 below for addition
14. 52mm Use the forklift to push or pull the unit When using a crane to lift the unit from a flat bed or to move for installation it is recommended using slings rated for the unit weight Spreader bars are to be used for sling stability and to prevent unit pinching Make sure spreader bars are wider than the unit Slings are to be placed near the ends of the unit under the top deck boards of the skid Figure 14 Lifting condenser off skid Three fan unit shown Positioning for other Liebert condensers are the same 17 Inspection and Installation 3 3 Unpacking the Condenser All Unit Sizes To unpack a condenser with one to eight fans Remove the exterior stretch wrap packaging material from around the unit Remove corner and side foam planks from around the unit Remove the steel bands holding the unit to the skid Set unit legs aside but accessible Remove corrugated panels covering the coil s of the unit OU de eke Figure 15 Removing protective material 3 4 3 4 1 Steel bands Three fan unit shown Methods for other Liebert drycoolers are the same Three fan unit shown for illustration Methods for other sizes of drycoolers are the same E Unit Legs v I fasteners in bag attached to legs Preparing a Condenser for Moving and Installation Units with One to Four Fans The following procedure is one recommended method for removing a Liebe
15. 7 1 11 8 5 4 1 5 8 16 7 7 6 16 7 7 6 15 Inspection and Installation 3 0 INSPECTION AND INSTALLATION 3 1 Equipment Inspection Before unpacking the condenser verify that the labeled equipment matches the bill of lading Carefully inspect all items for damage either visible or concealed Report any damage immediately to the carrier and your local Emerson representative File a damage claim with the carrier and send a copy to your local Emerson representative 3 1 1 Packing Material A Y All material used to package this unit is recyclable Please save 1t for future use or L dispose of the material appropriately R SAFETY INFORMATION KT A WARNING Risk of improper handling Can cause equipment damage injury or death Read all of the following instructions before attempting to move lift remove packaging from or preparing unit for installation A CAUTION Risk of sharp edges splinters and exposed fasteners Can cause personal injury Only properly trained and qualified personnel wearing appropriate safety headgear gloves shoes and glasses should attempt to move lift remove packaging from or prepare unit for installation NOTICE Risk of overhead interference Can cause unit and or structure damage Refer to the installation plans prior to moving the unit to verify clearances NOTICE Risk of improper forklift handling Can cause unit damage Keep ti
16. Control Type Liebert Lee Temp Liebert Lee Temp VFD 8 Fan Speed Controlled Only Controlled with Fan Cycling Number of Fans Number of Fans Number of Fans Control Wire Run M ft 1 2 3 4 6 8 1 4 6 amp 8 2 3 4 6 8 0 7 6 0 25 1 0 1 0 1 5 1 0 1 0 1 0 1 0 10 10 1 0 7 9 15 2 26 50 1 0 10 2 5 25 1 0 1 0 1 0 1 0 1 0 1 0 15 5 22 8 51 75 igilo 1 5 1 5 4 0 4 0 T 1 0 1 0 1 5 1 5 1 5 15 23 2 30 4 76 100 1 5 2 5 6 0 4 0 1 0 1 0 1 5 2 5 1 5 25 30 8 38 1 101 125 2 5 2 5 6 0 6 0 1 5 1 5 2 5 25 25 2 5 38 4 45 7 126 150 25 4 0 6 0 6 0 1 5 15 25 40 25 4 0 Table based on 1 0mm min wire size 0 5A per contactor 1 to 1 5V maximum drop amp 40 C 104 F average ambient temperature 3 7 3 Low Voltage Monitoring Wiring VFD Condensers Only Condensers with monitoring terminals may be wired with Class 1 copper wire to the indoor cooling unit or other monitoring panel Wiring must be sized so that the voltage drop in the circuit does not exceed 1 volt Dry contacts close when a monitored event occurs Consult condenser electrical schematic supplied with the unit for details Contact closure on VFD Drive monitoring terminals indicates a permanent VFD fault A factory programmed VFD must be used as the replacement Contact closure on SPD monitoring terminals may indicate unit trouble ranging from electrical supply issues to SPD replacement required A prope
17. Figure 7 for typical 84 3 4 condenser footprint dimensions 2153mm Ca 083 m 1067 mm pd lr Ts toi decos ANCHOR PLAN m 0 2032 mm gt 84 3 4 Etc Eight Fan Condenser i LA Co Site Preparation Figure 7 Typical condenser footprint dimensions i 25 4mm 1 3 4 4 1 4 44 5mm 108mm 1 3 4 44 5mm 4 1 4 108mm IL Figure 8 Piping connection locations for 1 2 3 and 4 fan VFD Control and Fan Speed Condensers prm 50 8mm Lo 9 16 14mm Typical Diameter Inverted Traps field supplied to extend above coil base Leaving by a minimum of 7 1 2 190mm Liquid Line Entering Hot Gas Line Vertical 1 S Uc Metal x Clam solator Optional fusible plug service kit to E EVA p be brazed into the liquid line s in See either the vertical or horizontal BO Detail Detail A A position where required Horizontal A A Vertical position is preferable Fasten liquid and hot gas lines to leg using le tr position apucha flat surface clamps with isolators field supplied See ce id xau one Support field piping separately to avoid DPNO00665 coil damage and loss of charge be installed in each circuit i g g Rev 3 Site Preparation Figure 9 Piping connections for 1 2 3 and 4 fan Liebert Lee Temp and Liebert Quiet Line Condensers Line A Liquid Line Fasten liquid and hot gas lines to leg using fl
18. H Precision Cooling For Business Critical Continuity Liebert Air Cooled Direct Drive Condensers User Manual 50 60Hz EMERSON Network Power 1 0 1 1 1 2 1 3 1 4 1 5 2 0 2 1 2 2 2 3 3 0 3 1 3 2 3 3 3 4 3 5 3 6 3 7 3 8 3 9 3 10 3 11 4 0 4 1 TABLE OF CONTENTS INTRODUCTION tirate o oe ae eee 1 Product Description and Features 1 Head Pressure Control Types 2 T221 o Peed ue cse A sat It dos Sah tae Sala eck soe tue ur UG 2 1 2 2 Variable Frequency Drive eee a 2 12 3 Liebert Lee Temp Refrigerant Control isse e 3 Sound Level Options rr 3 1 3 1 gt Standard Condenser e tee ig ast e be T IR eed getestet etd eese e aea he SE S 3 1 3 2 Liebert Quiet Line Condenser er 3 Surge Protection Device 5s onda Ra o a e A E VC NOS eS 3 Typical System Configurations Seu exse a Sek see A Os eee at 3 SITE PREPARATION 20 RIA AR ved Paneer ee sane a 5 Bite Considerations st ese tele doeet tie i vet ques oan Cute sdb xd did e 5 Dimensions and Weights vita a ew RL3 ERG e ale quee ta Eg 5 Refrigerant Planning Values 2s rr RAE E e obe dg Ga d pia d d 14 INSPECTION AND INSTALLATION miu aaa RU 16 Equipment Inspection ris ssar eed eu acer e ee REN US DER tr 16 dull Packing Material 2225 Lee doe ce Dab ack e e quede ead ee ls 16 Handling Unit on the Skid 2 es 17 Unpacking the Condenser All Unit Sizes llle es 18 Preparing a Conde
19. The fan guards and fan blades must be removed to gain access to the coil surface The sprayer can then be worked across the coil using the water cleaning solution pushing the dirt and debris out the bottom of the coil Although this does extend the time involved the results are well worth it This method should be used at least once a year Spraying the coil from the outside repeatedly can push a majority of the dirt to the inner section of the fins and continue to restrict air flow Keep in mind you may not have the luxury of shutting the unit s down for an extended time A pre scheduled shutdown with the operator may be in order If you are using a cleaner along with the spraying process follow recommended manufacturer instructions and be sure to rinse the coil thoroughly Any residue left on the coil can act as a magnet to dirt Reinstall and secure the fan blades and fan guards after the cleaning is finished Last reconnect the power supply to the condenser 39 System Maintenance 6 2 2 Maintenance Inspection Checklist Date Prepared By Model Serial Number NOTE Regular inspections are necessary to ensure that the cooling fins are clean Should inspection reveal dirt or corrosion appropriate cleaning should be performed Monthly Semiannually Condenser Condenser __ 1 Coil surfaces free of debris 1 Complete all monthly items ___ 2 Fans free of debris __ 2 P
20. al field installed piping needed at the condenser This piping is needed for proper system performance and for installation interconnecting receivers and head pressure control valves for Liebert Lee Temp systems NOTE Keep the evaporator unit and condenser closed with their factory charge of dry nitrogen while all field piping is installed Keep the field piping clean and dry during installation and do not allow it to stand open to the atmosphere When all the field interconnecting piping is in place vent the condenser s dry nitrogen charge and connect to the field piping Finally vent the evaporator unit s dry nitrogen charge and make its piping connections last Follow all proper brazing practices including a dry nitrogen purge to maintain system cleanliness Refer to 3 10 1 Piping Guidelines Figure 27 VFD and Fan Speed Control condenser piping Inverted Traps field supplied to extend a minimum of l Entering Hot L aving gt 7 1 2 190mm above coil base Gas Line Liquid Line l es T eta Vertical gt e dl 4 Clamp E ET E See Optional fusible plug service kit to s Detail j amp elatot be brazed into the liquid line s in Horizontal A A Detail A A either the vertical or horizontal position where required Vertical position is preferable Fasten liquid and hot gas lines to leg using horizontal position is optional flat surface clamps with isolators field supplied DPNO001065 For two circuit syste
21. at surface clamps with isolators field provided Support field piping separately to avoid coil damage and loss Inverted Traps field supplied to extend 8 203mm above coil base Entering of charge Position elbow Metal Isolator to direct relief Clamp valve downward Detail A A DPNO001067 Rev 0 Figure 10 Piping connections for 6 and 8 fan Fan Speed Condensers Access Valve Hot Gas on Condensers Typ 2 Entering Hot Gas Inverted Traps field supplied to extend a minimum of Hine 7 1 2 190mm above coil base a Inlet Connection Typical un N H Tvp iquid Line Upper Headers Typ Condenser la Connections Vertical Natale MURS Pus Clamp Optional fusible plug service kit to Se See Detail A A be brazed into the liquid line s in Detail either the vertical or horizontal Horizontal A A position where required Vertical position is preferable horizontal position is optional For two circuit systems one fusible plug kit must to be installed in each circuit Two circuits supplied single circuit Fasten liquid and hot gas shown for clarity lines to leg using flat surface clamps with isolators field supplied Support field piping separately to avoid coil damage and loss of charge DPNOO0668 Rev 2 Site Preparation Figure 11 Piping connections for 6 and 8 fan Liebert Lee Temp and Liebert Quiet Line Condensers Access Valve Hot Gas on Condense
22. d NOTE Refer to specification sheet for full load amp and wire size amp ratings 27 Inspection and Installation Figure 25 Electrical field connections for VFD control condensers Factory wired to 24V control circuit Control interlock 70 71 Field supplied Class 1 wiring to interlock condenser 24V controls to Liebert room unit 7 8 in 22 2mm diameter hole provided in bottom of electric box Factory installed fuse block on 60Hz units Circuit breaker supplied in lieu of fuse block on 50Hz units Electric service connection terminals with factory supplied disconnect Factory installed Alarm Connections disconnect switch Field supplied 24V Class 1 wiring to remote alarm circuits Surge Protection Device SPD alarm contact connections 11 12 Variable Frequency Drive VFD alarm contact connections 13 14 Electric service entrance A 7 8 22 2mm diameter hole in a 1 1 8 in 28 6mm knockout provided in bottom f electri Factory wired to components of elgctric box on electric panel Earth ground bar optional on 50Hz only Connection terminals with factory ground from each high voltage component for field supplied earth grounding wire t by Liebert Earth ground connection 60Hz Madri Connection terminal for field supplied earth grounding wire DPNO001051 when factory disconnect is supplied Rev 01 NOTE Refer to specification sheet for full load amp and wi
23. denser Fan Speed VFD Lee Temp Liebert Lee Temp Control Type Controlled Controlled Controlled Fan Cycling Controlled Fan Cycling Input Input Input Input Model of Voltage Phase Voltage Phase Voltage Phase Model Voltage Phase Fans 200 220 1 380 415 3 200 230 3 380 415 3 200 230 3 380 415 3 200 230 3 380 415 3 083 104 1 4 0 a 3 7 1 8 3 5 1 7 063 1 8 0 9 119 165 205 2 3 7 7 2 3 5 7 0 3 4 127 3 6 1 8 143 251 308 3 5 4 10 7 5 2 10 5 5 1 214 5 4 2 7 415 510 4 7 1 14 2 6 9 14 0 6 8 286 7 2 3 6 616 6 10 8 mo 21 0 10 2 409 10 8 5 4 830 1010 8 14 2 28 0 13 6 572 14 4 7 2 Table 11 Liebert Lee Temp receiver electrical data 50Hz and 60Hz Rated Voltage Single Phase 120 200 208 230 Watts Receiver 150 300 450 150 300 450 Full Load Amps 1 4 28 42 0 7 14 2 1 Wire Size Amps 1 8 3 5 5 3 0 9 18 2 7 imde E EE s The Liebert Lee Temp receiver requires a separate power feed for heaters The condenser is not designed to supply power to the receiver 3 7 2 Low Voltage Control Wiring NOTICE Risk of control malfunction Can cause improper unit operation Make sure that all low voltage electrical wiring has been performed per the schematic diagram provided and that all low voltage wiring connections are tight A control interlock between the condenser and the indoor cooling units is required Field supplied copper wire is required for connection be
24. f before performing any electrical and or mechanical service and or maintenance operations Each unit is shipped from the factory with all internal unit wiring completed Refer to the electrical schematic supplied with the condenser when making line voltage supply low voltage indoor unit interlock and any low voltage alarm connections All wiring must be done in accordance with all applicable local state and national electrical codes Line Voltage Wiring A WARNING Risk 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 Unit specific wiring diagrams are provided on each unit Condenser rated voltage should be verified with available power supply before installation Refer to the unit s electrical schematic and serial tag for specific electrical requirements Line voltage electrical service is required for all condensers at the location of the condenser The power supply does not necessarily have to be the same voltage supply as required by the indoor unit connected to the condenser See the unit s serial tag for specific condenser electrical requirements A unit disconnect is standard on
25. he equipment 3 Equipment is level and mounting fasteners are tight 4 2 Electrical __ 1 Line voltage connected and matches equipment nameplate __ 2 Power line circuit breakers or fuses have proper ratings for equipment installed 3 Control wiring connections completed between indoor cooling unit and condenser 4 Allinternal and external high and low voltage wiring connections are tight 5 VFD condensers only Check for Delta Connected Power Supply and make any needed adjustments per 3 8 1 VFD Control Condensers Only __ 6 Monitoring wiring connections completed when equipped to indoor cooling unit or external monitoring panel 7 Confirm that unit is properly grounded to an earth ground 8 Control transformer setting matches incoming power 9 Electrical service conforms to national and local codes ___ 10 Check fans for proper phase rotation Blades should rotate clockwise when viewing the unit from the fan guard side 4 3 Piping __ 1 Piping is completed to corresponding indoor cooling unit refrigeration circuit __ 2 Piping leak checked evacuated and charged with specified refrigerant 3 Additional refrigerant oil added if required per circuit ___ 4 Piping is properly sized sloped and trapped for proper oil return 5 Piping is routed to reduce potential of rub through or chaffing 6 Refrigerant lines are secured to condenser leg s 4 4 Other __ 1 Fans rotate freely and in proper direction 2 Adjust ambie
26. individuals to turn the unit upright so that the legs point down Unit legs are to be pointing toward the ground 19 Inspection and Installation Figure 18 Remove skid set condenser on floor ge tab AA Turn condenser so an eu i PON legs point down T ie J Ca T T woj e pud a L Pull skid from under 4 condenser i pO I ini 1 Set the upright unit on the ground so the legs support unit weight Remove the straps from around unit One two and three fan units route the straps through the large holes on the side of the legs Spreader bars are still required Make sure spreader bars are wider than the unit Four fan units use the eye bolts on top of the unit to secure straps or chains The unit is now ready to be lifted and moved to its installation location 3 5 Preparing a Condenser for Moving and Installation Units with Six or Eight Fans The following procedure is one recommended process for removing a Liebert condenser from its shipping skid Other methods may be used provided that the methods are safe for personnel the condenser and equipment 3 5 4 Attaching Legs Removing the Skid and Attaching Slings Units with Six or Eight Fans 1 Attach upper most legs to the unit at indicated locations Use four 4 fasteners per leg Fasteners are provided with the legs Quantity of legs per side may vary per unit type and number of fans Recommended tools for attachment
27. iping in good condition __ 3 Fan motors securely mounted 3 Inspect refrigerant lines for signs of oil ___ 4 Motor bearings in good leaks Repair leaks as found condition ___4 Check refrigerant charge level in each ___5 Check all refrigerant lines and receiver tank Gf equipped based on capillaries for vibration procedures in the indoor unit s manual isolation Support as Continuous system operation required necessary 5 Wash coil as needed 6 No refrigerant leaks 6 Repair bent or damaged fins Condenser Electrical Panel Condenser Electric Panel 1 On VFD condenser models ___ 1 Check all electrical connections check SPD protection status 2 Check contactors for pitting indicator light a ___ 3 Operational sequence setpoints Fan Motors __ 1 Motor 1 amp draw _ amps 2 Motor 2 amp draw _ amps 3 Motor 3 amp draw amps 4 Motor 4 amp draw _ amps 5 Motor 5 amp draw amps __6 Motor 6 amp draw amps 7 Motor 7 amp draw _ amps 8 Motor 8 amp draw amps Notes Signature Make photocopies of this form for your records 40 System Maintenance Table 14 Troubleshooting Symptom Condenser will not start Possible Cause No power to condenser Check or Remedy Check voltage at input terminal block Circuit breaker for low voltage transformer in condenser is tripped Locate problem in condenser electrical panel and repair No low voltage signal t
28. is a 5 8 socket and ratchet 2 Attach slings or chains to the top side of the unit lift rails Mechanically lower the unit in order to rest on the attached legs Make sure not to damage the opposite side of the unit 3 Move the slings or chains to the lift rail side resting on the skid Mechanically lift the unit to a point where the side being lifted is just high enough to allow for safe attachment of the remaining unit legs Move the skid out the way 4 Usethe support channels located under the unit to attach straps or chains Spreader bars are still required Make sure spreader bars are wider than the unit 20 Inspection and Installation Figure 19 Attach legs to six and eight fan condensers remove from skid Attach legs to higher side of condenser Move higher side of condenser to the floor Straps attached using support channels pe 7 7i Pull skid from under supported side of condenser ify Attach remaining legs to supported side of condenser The unit is ready to be lifted and moved to its installation location Figure 20 Rigging six fan or eight fan condenser for lifting into position Spreader bars keep straps from pressing on sides of condenser Straps attached using support channels 21 Inspection and Installation 3 6 3 7 3 7 1 Mounting the Condenser The condenser must be installed so that it is level within 1 2 13mm to ensure proper refrigerant flow
29. l Continuity E AC Power E Embedded Computing I3 Outside Plant I3 Connectivity Mi Embedded Power H Power Switching amp MDcPower Mi Infrastructure Management amp Monitoring Mi Precision Cooling Emerson Business Critical Continuity Emerson Network Power and the Emerson Network Power logo are trademarks of Emerson Electric Co or one of its affiliated companies 2008 Emerson Electric Co Technical Support Service Web Site www liebert com Monitoring liebert monitoring emerson com 800 222 5877 Outside North America 00800 1155 4499 Single Phase UPS amp Server Cabinets liebert upstech emerson com 800 222 5877 Outside North America 00800 1155 4499 Three Phase UPS amp Power Systems 800 543 2378 Outside North America 614 841 6598 Environmental Systems 800 543 2778 Outside the United States 614 888 0246 Locations United States 1050 Dearborn Drive P O Box 29186 Columbus OH 43229 Europe Via Leonardo Da Vinci 8 Zona Industriale Tognana 35028 Piove Di Sacco PD Italy 39 049 9719111 Fax 39 049 5841 257 Asia 29 F The Orient Square Building F Ortigas Jr Road Ortigas Center Pasig City 1605 Philippines 63 26876615 Fax 63 2 7309572 EmersonNetworkPower com E Racks amp Integrated Cabinets Controls I Services I3 Surge Protection
30. low the indoor unit Fan Speed and VFD condensers must not be installed more than 15ft 4 6m below the indoor unit Liebert Lee Temp condensers should be installed above or at the same level as the indoor unit Contact the factory for assistance in specifying subcooling coils to each circuit to extend these limits Dimensions and Weights Table 1 Condenser shipping weights dimensions and volume approximate Domestic Packaging Export Packaging Dimensions Dimensions Number Weight LxWxH Volume Weight LxWxH Volume Model of Fans Ib kg in mm ft m3 Ib kg in mm ft m3 083 1 330 150 415 188 104 1 350 159 59x30x51 52 1 5 435 197 60x31x52 56 1 6 28K 1 350 159 1500x760x1300 i 435 197 1520x790x1320 i 063 1 350 159 435 197 165 2 490 222 690 313 205 2 560 254 760 345 60K 2 560 254 97x30x51 86 2 4 760 345 98x31x52 91 2 6 119 2 490 222 2460x760x1300 690 313 2490x790x1320 127 2 560 254 760 345 143 2 655 297 855 388 251 3 590 268 870 395 308 3 760 345 139x30x51 123 3 5 1040 472 140x31x52 131 3 7 90K 3 760 345 8530x760x1300 i 1040 472 3560x790x1320 j 214 3 885 401 1165 528 415 4 935 424 1235 560 179x30x51 180x31x52 510 4 1230 558 4550x760x1300 158 4 5 1530 694 4570x790x1320 168 4 8 286 4 1185 537 1485 674
31. ms one Support field piping separately to avoid coil damage Rev 1 be installed in each circuit 32 Inspection and Installation Figure 28 Liebert Lee Temp head pressure control condenser piping Inverted Traps field supplied to extend 8 203mm above coil base Entering Hot Gas Line Hot Gas Line Liquid Line Fasten liquid and hot gas lines to leg using flat surface clamps with isolators field supplied Support field piping separately to avoid coil damage and loss of charge Leaving Liquid Line Position elbow to direct See Detail A A relief valve downward Metal Isolator DPN000669 Clamp Rev 2 Detail A A 33 Inspection and Installation Figure 29 General arrangement Air cooled models with Liebert Lee Temp control Condenser Coil Inverted Trap on discharge and liquid lines to extend Piping Assembly 7 1 2 190mm MEE es above coilbase 4 22 Check v Rotalock Valve rn a J Head Pressure Valve x Control with 1 4 6 4mm i Pressure Relief Valve ight Glass For rises over 25ft 7 6m trap Z Evaporator every 20ft 6m or Liquid Return Z a Coil atevenly spaced om Z as Condenser points a P H UN P IN PA l1 P 5 a B A n Shutoff Solenoid i Isolation Valves TS Sy Sensing Bulb Ns Valve ight 7 la f Liquid I E er External u E Equalizers ye 0 Hot Gas
32. nd 4 fan VFD Control and Fan Speed Condensers Piping connections for 1 2 3 and 4 fan Liebert Lee Temp and Liebert Quiet Line Condensers ti E QUAD Tae lidia ca tee Piping connections for 6 and 8 fan Fan Speed Condensers 0 00 c cece eee eens Piping connections for 6 and 8 fan Liebert Lee Temp and Liebert Quiet Line Condensers Equipment recommended for handling a Liebert condenser 0 0 00 cee eee eens Forklift position with one fan to eight fan condensers 0 0 eee eens Taluma condenser Off Skid ln ke bee I mated etos os TORT it boe o aaron Tee Reid Removing protective material ccce s Attaching legs to one fan to four fan condensers ssassn annaa teen eens Securing slings to one fan to four fan condensers for lifting off skid Remove skid set condenser on floor o es Attach legs to six and eight fan condensers remove from skid oooooooooo oo Rigging six fan or eight fan condenser for lifting into position ooooooooooomoo o Wye connected power diagram 0 rs Delta connected power diagram 1 0 0 0 eee eee eens Disconnecting EMC filter for operation with Delta connected power 0000 ee eee Electrical field connections for Fan Speed Control Condensers 00 ccc eee eee Electrical field connections for VFD control condensers 000 cee eee nes Electrical field connections for Liebert Lee Temp
33. ndard NOT ALL POSSIBLE COMBINATIONS OF MODELS CONTROLS AND VOLTAGES ARE AVAILABLE 1 2 1 2 1 1 2 2 on Fan Speed Control 1 fan condensers Three phase voltage is only voltage available as standard on condensers with VFD Conirol Liebert Lee Temp receivers and Fan Speed Control 2 8 fan models only VFD Control Condensers are not available in 575 3 60 Head Pressure Control Types Fan Speed Fan speed control utilizes a wave chopper control to vary the air volume over the condenser coil based on refrigerant head pressure The fan motor next to the electrical panel two fans on 6 fan and 8 fan models is a single phase permanent split capacitor motor with motor speed adjusted in response to refrigerant pressure The balance of fans on multi fan units cycle on ambient thermostats The control system provides refrigerant head pressure control for outdoor ambients as low as 20 F 28 9 C Variable Frequency Drive VFD Condenser control system utilizes a variable frequency drive inverter duty fan motor operating from 0 to 100 motor RPM based on head pressure sensed by refrigerant pressure transducers VFD ambient temperature thermostat s motor overload protection and electrical control circuit are factory wired in the integral control panel VFD controls the fan adjacent to the connection end of the condenser and remains energized with active compressor operation The balance of fans on multi fan units cycle on ambient the
34. ne Models 063 1 1 1 1 8 5 8 315 143 119 2 1 1 1 8 7 8 425 193 119 2 2 7 8 5 8 425 193 127 2 1 1 1 8 7 8 495 225 127 2 2 1 1 8 7 8 495 225 143 2 1 1 1 8 7 8 515 234 143 2 2 1 1 8 7 8 515 234 214 3 1 1 5 8 1 1 8 840 381 214 3 2 1 1 8 7 8 840 381 286 4 1 2 1 8 1 1 8 1105 501 286 4 2 1 1 8 7 8 1105 501 409 6 2 1 5 8 1 1 8 1380 626 572 8 2 2 1 8 1 1 8 2430 1102 R 410A Models 28K 1 1 1 1 8 7 8 325 147 60K 2 1 1 1 8 7 8 475 215 90K 3 1 1 1 8 7 8 675 306 1 Interconnection piping field supplied and installed required Configure piping for parallel refrigerant flow between condenser sections 12 Site Preparation Table 3 Liebert Lee Temp receiver weights and cross reference to condenser Weight per Condenser Receiver Receivers per Receiver Model Part Condenser Ib kg Standard Models DCSLO83 1C19982P1 100 45 DCSL104 1C19982P1 100 45 DCSL165 W 0050 125 57 DCSL205 W 0050 125 57 DCSL251 W 0050 1 125 57 DCSL308 W 0060 145 66 DCSL415 185011P1 260 118 DCSL616 w 04101 200 91 DCSL616 179701P1 2 424 192 DCDL104 1019982P1 100 45 DCDL165 1C19982P1 100 45 DCDL205 W 0050 125 57 DCDL251 1C19982P1 100 45 DCDL308 W 0050 2 125 57 DCDL415 W 0060 145
35. nes of the forklift level and at a height suitable to fit under the skid NOTICE Risk of improper storage Can cause unit damage Keep unit upright and protected from contact damage Figure 12 Equipment recommended for handling a Liebert condenser PA G a Forklift Lift Beam Slings and Spreader Bars Inspection and Installation 3 2 Handling Unit on the Skid Transport the unit using a forklift or a crane with sling and spreader bars If using a forklift make sure the forks if adjustable are spread to the widest allowable distance to still fit under the skid Type of forklift used will be dependant on the terrain the unit is be moved across during handling Minimum forklift fork length for one fan and two fan units 48 1219mm for three fan and four fan units 72 1829mm for six fan units 72 1829mm for 8 fan units 96 2438mm When moving the packaged unit do not lift the unit any higher than 6 152mm off the ground If the unit must be lifted higher than 6 152mm great care must be exercised and all personnel not involved in moving the unit must be at least 20 6m from the lift point of the unit Figure 13 Forklift position with one fan to eight fan condensers Three fan unit shown Positioning for other Liebert condensers are the same When using a fork lift to off load or move for installation it is recommended to lift one narrow end off the ground no more than 6 1
36. ning operations The fans may start unexpectedly Disconnect power supply before working on unit Line side of factory disconnect remains energized when disconnect is off Use a voltmeter to make sure power is turned off before checking any electrical connections or functions General Procedures NOTE When ordering replacement parts for equipment it is necessary to specify unit model number serial number and voltage Please record those numbers in the spaces below Model Number Serial Number Voltage Phase Frequency Periodic attention is necessary for continued satisfactory operation of your unit Restricted air flow through the condenser coil reduced airflow from non functioning fans and low refrigerant system charge levels will reduce the operating efficiency of the unit and can result in high condensing temperatures and loss of cooling In winter do not permit snow to accumulate around the sides or underneath the condenser coil Monthly and semi annual inspections and maintenance are recommended for proper system operation Use copies of 6 2 2 Maintenance Inspection Checklist for each of these inspections If performance or operation problems are detected at anytime refer to Table 14 Troubleshooting for required action 38 System Maintenance 6 2 6 2 1 Special Procedures Condenser Cleaning Keeping the outdoor condenser coils clean is an important factor in maintaining peak efficiency
37. nser for Moving and Installation Units with One to Four Fans 18 3 4 1 Attaching Legs Removing the Skid and Attaching Slings Units with One to Four Eau ete sa en bi a URS ave aa re vo dn bs d exe etie As cd 18 Preparing a Condenser for Moving and Installation Units with Six or Eight Fans 20 3 5 1 Attaching Legs Removing the Skid and Attaching Slings Units with Six or Eight rur p Arp 20 Mounting the Condenser 0 cc ccc eer n ees 22 Electrical Supply Preparation 0 0 000 eee I s 22 ZRELE due Voltage Warin 9 4 suceso i a a a wid Ghose debe 22 3 7 2 Low Voltage Control Wiring 0 0 cence s 24 3 7 8 Low Voltage Monitoring Wiring VFD Condensers Only oooo oooooooo o 25 Electrical Connections te 15er VELA a bee aes aeons See Phew ak os 25 3 8 1 VFD Control Condensers Only 25 3 8 2 Wye Connected Power Supply 0 0 ccc cece hn 26 3 83 Delta Connected Power Supply 26 Electrical Field Connection Descriptions 0 0 0 00 ccc cc eee eens 27 Refrigeration Piping Connections 30 3 10 1 Piping Guidelines ce eee hes 31 3 10 2 Field Piping Installation en a a i e a 32 3 10 3 Refrigerant Oil Addition Procedures 0 00 c ccc eee eee eas 35 System Dehydration Leak Test and Charging Procedures 0 000 cece eeeee 35 CHECKLIST FOR COMPLETED INSTALLATION 2 0 0 e cece e ee eee RR n nnn 36 Moving and Placing Equipment 36 4 2 4 3 4 4 5 0
38. nside the piping When copper is heated in the presence of air copper oxide forms POE oil will dissolve these oxides from inside the copper pipes and deposit them throughout the system clogging filter driers and affecting other system components A pure dry nitrogen flow of 1 3 ft min 0 5 1 5 l s inside the pipe during brazing is sufficient to displace the air Control the flow using a suitable metering device Ensure that the tubing surfaces to be brazed are clean and that the ends of the tubes have been carefully reamed to remove any burrs Ensure that all loose material has been cleaned from inside the tubing before brazing Protect all refrigerant line components within 18 460mm of the brazing site by wrapping them with wet cloth or suitable heat sink compound Isolate piping from building using vibration isolating supports Refer to indoor unit user manual for appropriate piping sizes Install traps on the hot gas discharge lines at the bottom of any rise over 5 feet high If the rise exceeds 25 feet 7 5m then install a trap in 20 foot 6m increments or evenly divided Pitch horizontal hot gas piping at a minimum rate of 1 2 per 10 ft 42mm per 10m so that grav ity will aid in moving oil in the direction of refrigerant oil flow Consult factory if Liebert Lee Temp condenser is below the evaporator or if Fan Speed VFD Con trol Condenser is more than 15 ft 4 6m below the evaporator Consult factory if piping run exceeds 1
39. nt thermostat setpoints to match setpoints on the electrical schematic supplied with the condenser ___ 3 Foreign material removed from in and around all equipment installed construction materials construction debris etc 4 Installation materials and tools have been removed from in and around all equipment literature shipping materials tools etc 5 Blank start up sheet located ready for completion by installer or start up technician 36 Operation 5 0 OPERATION 5 1 5 2 A WARNING Risk of electric shock Can cause injury or death Disconnect all local and remote electric power supplies before working within Unit contains potentially lethal electrical voltage Only properly trained and qualified personnel may perform repair maintenance and cleaning operations The fans may start unexpectedly Disconnect power supply before working on unit Line side of factory disconnect remains energized when disconnect is off Use a voltmeter to make sure power is turned off before checking any electrical connections or functions Startup Checklist Refer to 4 0 Checklist for Completed Installation and verify that all installation items have been completed before beginning to start the condenser Startup Locate Liebert Condensers and Drycoolers Warranty Inspection Check Sheet Document SAFM 8542 54 Turn the condenser disconnect ON Indoor units should be turned on and set for cooling to allow o
40. o from indoor unit Locate open circuit and repair Low indoor unit suction pressure Insufficient refrigerant in system Check for leaks repair and add refrigerant Fan cycling ambient thermostats setpoints too low Check schematic for recommended setpoints and adjust Low discharge pressure Faulty head pressure control valve or condenser FSC VFD control Replace if defective High discharge pressure Dirty condenser fins Clean coil Condenser fans not operating Check for low voltage signal from indoor unit Check fan motors and fuses Check for correct ambient thermostat setpoints as applicable High refrigerant charge Check refrigerant charge VFD Condenser trips out on overvoltage OU displayed on VFD controller Supply voltage is Delta configuration or is ungrounded high impedance Shut off AC voltage locate the VFD pull out the EMC tab and reconnect power SPD indicator lights are extinguished or red LED is illuminated and monitoring terminals 11 12 are closed No voltage or improper phasing exists at condenser Check voltage at input terminal block Electrical connections to SPD are faulty Locate connection problem and repair A surge exceeding the rating of the SPD has occurred Replace SPD and inspect other components for damage and replace them if necessary 41 Ensuring The High Availability Of Mission Critical Data And A
41. peration of condenser Check the fans for proper rotation Clockwise when viewing the unit from the fan guard top side Check that air is being drawn through the coil and discharged out the fan assembly Some ambi ent thermostats may need to be temporarily adjusted to lower temperature settings to observe all fans operate Readjust thermostat settings to correspond to setpoints shown on the electrical schematic supplied with the unit Complete Liebert Condensers and Drycoolers Warranty Inspection Check Sheet Document SAFM 8542 54 NOTE This document must be completed and forwarded to your local Emerson sales office to validate warranty Contact your local Emerson sales representative or Liebert Precision Cooling support if you have any questions or problems during unit startup and commissioning Local Emerson sales offices and Liebert Precision Cooling support contacts can be found at www liebert com servicesupport_pages ServiceSupport aspx x servicesupport or by calling 1 800 LIEBERT 37 System Maintenance 6 0 SYSTEM MAINTENANCE 6 1 A WARNING Risk of electric shock Can cause injury or death Disconnect all local and remote electric power supplies before working in the unit Use voltmeter to make sure power is turned Off before making any electrical connections Unit contains lethal voltage in some circuits Only properly trained and qualified personnel may perform repair maintenance and clea
42. pplications Emerson Network Power a business of Emerson NYSE EMR is the global leader in enabling Business Critical Continuity from grid to chip for telecommunication networks data centers health care and industrial facilities Emerson Network Power provides innovative solutions and expertise in areas including AC and DC power and precision cooling systems embedded computing and power integrated racks and enclosures power switching and controls infrastructure management and connectivity All solutions are supported globally by local Emerson Network Power service technicians Liebert AC power precision cooling and monitoring products and services from Emerson Network Power deliver Efficiency Without Compromise by helping customers optimize their data center infrastructure to reduce costs and deliver high availability While every precaution has been taken to ensure the accuracy and completeness of this literature Liebert Corporation assumes no responsibility and disclaims all liability for damages resulting from use of this information or for any errors or omissions O 2008 Liebert Corporation All rights reserved throughout the world Specifications subject to change without notice Liebert is a registered trademark of Liebert Corporation All names referred to are trademarks or registered trademarks of their respective owners SL 10066_REV4_03 11 Emerson Network Power The global leader in enabling Business Critica
43. r at a much faster rate when exposed to air than previously used mineral oils Because water is the enemy of a reliable refrigeration system extreme care must be used when opening systems during installation or service If water is absorbed into the POE oil it will not be easily removed and will not be removed through the normal evacuation process If the oil is too wet it may require an oil change POE oils also have a property that makes them act as a solvent in a refrigeration system NOTICE Risk of improper installation and system contamination Can degrade system performance and damage components Maintaining system cleanliness is extremely important to properly complete installation and to maintain system warranty Failure to maintain system cleanliness during piping installation will clog filter driers and adversely affect other system components such as compressors and expansion valves Refer to 3 10 1 Piping Guidelines for details 30 Inspection and Installation 3 10 1 Piping Guidelines Indoor units and condensers both ship with nitrogen holding charges Do not vent the condenser until all refrigerant piping is in place ready for connection to indoor unit and condenser Use copper piping with a brazing alloy with a minimum temperature of 1350 F 732 C such as Sil Fos Avoid soft solders such as 50 50 or 95 5 Use a flow of dry nitrogen through the piping during brazing to prevent formation of copper oxide scale i
44. r two separate refrigeration circuits matching heat rejection capacity varying with the outdoor ambient temperatures and with each corresponding compressors heat rejection requirements Constructed with an aluminum cabinet and a copper tube aluminum fin coil the unit is quiet and corrosion resistant The condenser is quickly and easily installed because all internal wiring is completed at the factory with only electrical connections to be made at the job site All electrical connections and controls are enclosed in an integral weatherproof section of the condenser Figure 1 Liebert two fan condenser Introduction Figure 2 Product model nomenclature Example DCDF165 Y D C D F 165 Y Condenser F Fan Speed Control Reserved L Main Control Liebert Lee Temp T Ambient Fan Cycle Liebert Lee Temp V Variable Frequency Drive VFD Control S Single Refrigerant Circuit P 208 230V 1ph 60Hz D Dual Refrigerant Circuit Z 460V 1ph 60Hz V 575V 1ph 60Hz W 200 220V 1ph 50Hz i y Y 208 230V 3ph 60Hz D Disconnect Switch optional Model Size A 460V 3ph 60Hz on Fan Speed Control amp R 407C amp R 22 compatible B 575V 3ph 60Hz Standard Liebert Lee Temp K R 410A compatible M 380 415V 3ph 50Hz Condensers standard on Liebert Quiet Line T Surge Protection Device SPD internal amp Disconnect Switch available only on VFD Control condensers Single phase voltage is only voltage available as sta
45. re size amp ratings 28 Inspection and Installation Figure 26 Electrical field connections for Liebert Lee Temp control condensers Lee Temp receiver tank 1 per circuit NOTE Standard heater pads are 150 watts each Optional 300 watt heater pads are available Standard heater pad voltage is 230V 120V heater pad voltage is optional Electrical connection box with cover Electrical service connection Pigtails in electric handy box are factory wired to Lee Temp heater pads for field connection of separate continuous electric source Electric service connection wiring not by Liebert and fuse block Electric service connection terminals when factory disconnect is NOT supplied Factory wired to 24V Class 2 control circuit gt Control interlock 70 71 Field supplied Class 2 wiring to interlock condenser 24V controls to Liebert room unit 7 8 in 22 2mm diameter hole provided in bottom of electric box Electric service connection terminals when factory disconnect is supplied Factory installed disconnect switch optional Factory wired to components on electric panel Earth ground bar optional on 50Hz only Connection terminals with factory ground from each high voltage component for field supplied earth grounding wire Electric service entrance A 7 8 in 22 2mm diameter hole in a 1 1 8 in 28 6mm knockout provided in bottom of electric box Ea
46. reliability and long life of the equipment It is much easier to keep up on frequent cleanings rather than wait until heavy build up has occurred which may create head pressure problems with the evaporator units When to Clean Normal conditions typically dictate cleaning twice a year spring and fall On site or area conditions such as cottonwood trees construction etc can increase cleaning frequency On your standard monthly preventive maintenance schedule a visual inspection of the coil is recommended to monitor conditions What to Use The best overall condenser coil cleaner to use is plain water If the coil has been maintained and cleaned at regular intervals water is sufficient to remove dirt and debris from the fins Heavy build up on the exterior of the fins can be removed with a brush Water pressure from a garden hose and sprayer usually works well If a pressure washer is used make sure the equipment is set to a lower pressure setting and that the nozzle is set to the fan spray not stream Otherwise damage to the fins could result If a cleaner is required we recommend a non acidic type cleaner be used Acid type cleaners can be aggressive to the coil fins as well as surrounding areas Many sites do not allow the use of acidic cleaners for environmental reasons How to Clean The absolute best way to clean coils is from the inside out This requires disconnecting the power supply from the condenser before working on the unit
47. rly trained and qualified electrician is required 3 8 Electrical Connections Electrical service is required for all models Electrical service shall conform to national and local electrical codes Refer to equipment nameplate regarding wire size and circuit protection requirements Refer to electrical schematic when making connections Refer to Figures 24 25 and 26 for electrical service entrances into unit A manual electrical disconnect switch should be installed in accordance with local codes Consult local codes for external disconnect requirements A WARNING Risk of electric shock Can cause injury or death Disconnect all local and remote electric power supplies before working in the unit Unit contains lethal voltage in some circuits Use voltmeter to make sure power is turned Off before making any electrical connections NOTE Installation and service of this equipment should be done only by properly trained and qualified personnel who have been specially trained in the installation of air conditioning equipment NOTE Use copper wiring only Make sure that all connections are tight 3 8 1 VFD Control Condensers Only The installer startup technician must determine the type of 3 phase supply power being used for the VFD Control Condenser Wye connected power or Delta connected power Wye connected power has two different voltages that can be measured Phase to Phase voltage this is equal to the nominal input
48. rmostats This system provides refrigerant head pressure control for outdoor ambients as low as 20 F 28 9 C Introduction 1 2 3 1 3 1 3 1 1 3 2 1 4 1 5 Liebert Lee Temp Refrigerant Control 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 utilize head pressure control valves extra refrigerant and insulated refrigerant receivers with heater pads It works by flooding the condenser coil with liquid refrigerant to a level that balances the system condensing requirements with the condenser coil surface available to reject the system heat During the summer the system requires the entire condenser coil surface for heat rejection and most of the refrigerant is stored in a receiver In the winter the same amount of heat can be rejected by only a fraction of the coil surface As head pressure begins to fall the control valve restricts the flow of liquid refrigerant exiting from the condenser 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 maintain liquid pressure for proper operation of the expansion valve Condenser fan controls are either fan cycling on ambient temperature or constant on Liebert Lee Temp control is required for Liebert Quiet Line Condenser
49. rs Typ 2 Inverted traps field supplied to extend above base of coil by a minimum of 7 1 2 190mm Inlet Connection Upper Headers Typ Condenser T Y a Entering Hot Connections TA H n id C Gas Line Typical ine ot Gas Line ni r4 Leaving Liquid Line T Position elbow Fasten liquid and hot gas lines to leg using flat surface clamps with isolators field supplied See to direct relief Detail valve downward A A Metal Note Two circuits supplied single circuit shown for clarity Clamp Isolator DPN000670 Detail A A Rev 01 11 Site Preparation Table 2 Condenser physical data Number Number Connection Size OR nin Net Weight Model of Fans of Circuits Hot Gas Liquid Ib kg Standard Models 083 1 1 7 8 5 8 295 134 104 1 1 1 1 8 5 8 315 143 104 1 2 7 8 1 2 315 148 165 2 1 1 1 8 7 8 425 193 165 2 2 7 8 5 8 425 193 205 2 1 1 1 8 7 8 495 225 205 2 2 1 1 8 7 8 495 225 251 3 1 1 1 8 7 8 500 227 251 3 2 1 1 8 7 8 500 227 308 3 1 1 5 8 1 1 8 670 304 308 3 2 1 3 8 1 1 8 670 304 415 4 1 1 3 8 1 1 8 840 381 415 4 2 1 3 8 1 1 8 840 381 510 4 1 2 1 8 1 5 8 1190 540 510 4 2 1 5 8 1 1 8 1190 540 616 6 1 2 1 5 8 2 1 1 8 1380 626 616 6 2 1 5 8 1 1 8 1380 626 830 8 2 1 3 8 1 1 8 1750 794 1010 8 2 2 1 8 1 5 8 2640 1197 Liebert Quiet Li
50. rt condenser from its shipping skid Other methods may be used provided that they are safe for personnel the condenser and equipment Attaching Legs Removing the Skid and Attaching Slings Units with One to Four Fans 1 Attach legs to the unit at indicated locations Use the fasteners provided with the legs Recommended tools for attachment is a 5 8 socket and ratchet More legs may be available for installation than shown this will be dependent on unit type and number of fans 18 Inspection and Installation Figure 16 Attaching legs to one fan to four fan condensers Attach legs as shown in this close up view 2 Place slings around the unit One two and three fan units place slings against the inside of the attached legs Four fan units place slings against the outside of the attached eye bolts Slings are to be placed between the unit and the top deck boards of the skid Use spreader bars lift beam and crane to lift the unit off the skid Make sure spreader bars wider than the unit Figure 17 Securing slings to one fan to four fan condensers for lifting off skid Put slings on four fan condensers against the outside of the eyebolts Put slings on one fan two fan and three fan condensers against the legs 3 Lift the unit 24 610mm off the top deck of the skid Remove the skid from under the unit A mechanized method is preferred but if not available use a minimum of four properly protected
51. rth ground connection 60Hz Connection terminal for field supplied earth grounding wire when factory Earth ground connection 60Hz Electric service Three phase for all models Wiring not by Liebert disconnect is NOT supplied Connection terminal for field supplied earth grounding wire when factory disconnect DPN000683 is supplied Rev 0 NOTE Refer to specification sheet for full load amp and wire size amp ratings 29 Inspection and Installation 3 10 Refrigeration Piping Connections A A WARNING Risk of explosive discharge from high pressure refrigerant Can cause equipment damage injury or death Relieve pressure before working with piping WARNING Risk of refrigerant system rupture or explosion from overpressurization Can cause equipment damage injury or death Local building and plumbing codes may require that a fusible plug or other type of pressure relief device be installed in the system Do not install a shutoff valve between the compressor and the field installed relief device Consult local building and plumbing codes for installation requirements of additional pressure relief devices when isolation valves are field installed as shown in Figures 3 and 29 Do not isolate any refrigerant circuits from overpressurization protection NOTE POE polyol ester oil required with R407C R410A and used with some R22 systems is much more hygroscopic than mineral oils This means that POE oil absorbs wate
52. s Sound Level Options Standard Condenser All Fan Speed and VFD Condensers are standard condensers with moderate operating sound levels Liebert Lee Temp condensers with standard size coils matching Fan Speed and VFD coil sizes are standard sound level condensers Liebert Quiet Line Condenser Liebert Quiet Line Condensers can help your facility meet the strictest noise codes and do so at less cost than traditional condensers with acoustical shielding The Liebert Quiet Line Condensers utilize the same reliable construction features of the standard condensers and have oversized coils and slower speed fan motors which yield the required heat rejection needed at significantly lower sound levels Liebert Lee Temp control is required for Liebert Quiet Line Condensers Surge Protection Device A Surge Protection Device SPD panel is standard in the VFD Condenser models only Surge protection is necessary because the rooftop voltage supply often is not conditioned the same as the voltage supply inside the data center The SPD is designed to protect the VFD from high voltage transients up to 25kVA phase An illuminated green LED indicates power supply is On and panel status is OK An illuminated red LED indicates conditions require service and the SPD may require replacement to restore surge protection to the condenser Typical System Configurations Figure 3 shows a single refrigeration circuit diagram displaying the indoor air conditioning
53. s are not supplied 5ft 1 5m by Liebert but are recommended for proper circuit operation and maintenance Field Piping V Service Schrader Access Connection No Valve Core Y Service Schrader Access Connection With Valve Core NOTES Schematic representation shown Do not use for specific connection locations DPNO000798 Two refrigeration circuits provided Single refrigeration circuit shown for clarit y Rev 5 Site Preparation 2 0 SITE PREPARATION 2 1 2 2 Site Considerations The condensers 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 condensers whenever interior building locations must be used To ensure adequate air supply Emerson recommends that condensers be installed in an area with clean air away from loose dirt and foreign matter that might clog the coil In addition condensers should not be located near steam hot air or fume exhausts Also the condensers should be located no closer than 3 feet 1m from a wall obstruction or adjacent unit The condenser must not be installed in a pit The condenser must be installed on a level surface to ensure proper refrigerant flow For roof installation mount the condenser on suitable curbs or other supports in accordance with local codes Use caution when installing condensers be
54. tween like numbered terminals 70 amp 71 on both units Wiring must be sized and selected for insulation case per NEC and other local codes See Tables 12 and 13 for recommended wire sizing for control wiring runs up to 150 ft 45 7m Contact the factory for assistance with longer wiring runs See Figures 24 25 and 26 and indoor unit manual for location of terminals on condensers and indoor units Table 12 Minimum recommended control circuit wire size AWG 60Hz models Control Wire Run Control Type VFD amp Fan Speed Controlled Liebert Lee Temp Only Controlled with Fan Cycling Liebert Lee Temp Number of Fans Number of Fans Number of Fans ft m 1 2 3 4 6 8 0 25 0 7 6 16 16 16 16 26 50 7 9 15 2 16 16 14 16 51 75 15 5 22 8 E 16 16 14 14 76 100 23 2 30 4 16 16 12 12 101 125 30 8 38 1 16 14 10 12 126 150 38 4 45 7 14 14 10 10 1 4 6 amp 8 2 16 3 4 6 8 16 16 16 16 16 16 16 16 16 16 16 16 16 16 16 16 16 14 16 14 14 14 14 14 Table based on 16AWG min wire size 0 4A per contactor 1 to 1 5V maximum drop amp 104 F 40 C average ambient temperature 24 Inspection and Installation Table 13 Minimum recommended control circuit wire size mm 50 Hz models
55. unit the outdoor condenser VFD Fan Speed Control or Liebert Lee Temp and field supplied interconnection piping Introduction Figure 3 Typical system configuration indoor unit and outdoor condenser and field piping Relief Valve Service Valve LIQUID RETURN Check Valve t Inverted Trap on discharge amp liquid lines to extend above base of coil by a minimum of N 7 1 2 190mm Liebert Lee Temp Receiver Head Pressure Control Valve x xf a i i l CONDENSER I CONDENSER Wp e o4 A Optional field COIL I COIL installed fusible Fan Speed or VFD plug Liebert Lee Temp p at A des i Msc oues Hot Gas LIEBERT LEE TEMP Discharge FAN SPEED VFD Liebert Lee Temp or VFD condenser E Liebert Lee Temp or VFD condenser is required with digital scroll j is required with digital scroll LIQUID E Sn EVAPORATOR For rises over 28 42kW Digital Solenoid Valve Sensing COIL 25ft 7 6m m Bulb trap every 20ft igital Solenoid Valve SUCTION 6m or evenly divided Check Service External Field installed relief valve s required Valve Compressor Valve Equalizer for 50Hz EU CE units rated Sl 480 PSIG 33 Bar Isolation Valve HOT GAS DISCHARGE e D O i Expansion Solenoid Sight Filter Drier LIQUID RETURN Isolation Valve Valve lass Valve Trap at base Es of risers over Refrigerant Piping Component
56. voltage and Phase to Neutral voltage typically used for small single phase loads 120VAC or 277VAC See Figure 21 Delta connected power only has one voltage level that can be measured Phase to Phase See Figure 22 25 Inspection and Installation 3 8 2 Wye Connected Power Supply No control changes are required if the Liebert VFD Control Condenser will be operated with Wye connected power Figure 21 Wye connected power diagram Phase A Winding B Phase B Winding Neutral Winding C Phase C 3 8 8 Delta Connected Power Supply Figure 22 Delta connected power diagram Phase A Winding Winding A B C A Phase B Winding B C Phase C Disconnect EMC Filter for Delta Connected Power Installer startup technician needs to disconnect the EMC filter on the VFD to ensure proper operation if the Liebert VFD Control Condenser will be operated with Delta connected power 1 Disconnect the power supply before working on the unit 2 Open the electrical panel cover and locate the VFD Refer to Figure 25 3 Using Figure 23 locate the small black plastic tab immediately to the right of the wiring connection block of the VFD control 4 Pullthe tab to fully extend it disconnecting the EMC filter from the circuit 26 Inspection and Installation Figure 23 Disconnecting EMC filter for operation with Delta connected power Internal EMC filter Tab fully inserted EMC filter fitted Internal
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