Liebert Air Cooled, Direct Drive Condensers 1010 User's Manual
Contents
1. 00000005 15 Figure 14 Attaching legs to a 6 fan or 8 fan Unit teen neta 16 Figure 15 Attaching sling to a 6 fan or 8 fan unit for MOVING 6 2 eee 17 Figure 16 Wye connected power diagram 0 ccc eee cnet ee een ne ees 21 Figure 17 Delta connected power diagrama 21 Figure 18 Disconnecting EMC filter for operation with Delta connected power o oo ooooooo ooo 22 Figure 19 Electrical field connections for Fan Speed Control Condensers 0 0000 eee eee eae 23 Figure 20 Electrical field connections for VFD control condensers 0 00 cence nee nes 24 Figure 21 Electrical field connections for Liebert Lee Temp control condensers o ooooooo o 25 Figure 22 VFD and Fan Speed Control condenser pipe 27 Figure 23 Lee Temp head pressure control condenser piping 0 0 0 cee eee eens 28 Figure 24 General arrangement Air cooled models with Lee Temp control 0000 ce eee 29 TABLES Table 1 Condenser shipping weights dimensions and volume approximate 0 0 eee eee 4 Table 2 Condenser physical data eo A a NS Be wars 11 Table 3 R 22 and R 407C refrigerant required approximate o 12 Table 4 Interconnecting piping refrigerant charge 0 cee tent een eens 12 Table 5 60Hz condens r data A A Ed OO Oe eee 19 Table 6 60Hz condenser data Quiet Line Lee Temp controlled fan cycling oooooo 19 Table 7 50Hz condenser full load amp values 19 Table 82. If performance or operation problems are detected at anytime refer to Table 9 Troubleshooting for required action 33 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 reli ability 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
3. Site Preparation Figure 4 Condenser planning dimensional data Three fan and four fan units 43 9 16 1106mm 131 112 J 3340mm 43 9 16 1106mm 37 7 8 962mm 171 1 2 4356mm 37 7 8 962mm 457mm Eyebolts for Lifting 124 3150mm 43 3 1 A 1097mm Note Overall height to the top of fan guard 43 1 8 1095mm 457mm 164 4166mm IA q Liebert recommends a clearance 43 3 16 of 36 915mm on each side for 1097mm proper operation and component access ANCHOR PLAN 42 122 3099mm See Figure 6 for typical condenser footprint le 1067mm px T A A A M 31 dimensions tall va Bier Box Legs supplied with Three Fan 41 3 16 End Lee Temp option only Condenser 1046mm Da ANCHOR PLAN 42 F 82 2083 mm Ph 80 1067mm pu 2032 mm T ES E a aa a A io Fe Wl T Box Legs supplied with Four Fan 41 3 16 End Lee Temp option only Condenser ore 15 gt ee e ae A a fees eae gt o J _v Geccccccce Site Preparation Figure 5 Condenser planning dimensional data Six and eight fan units 87 1 8 131 1 2 2 P 962mm i r 457mm 86 3 4 3150mm y 1778mm 2203mm 164 1 1 2 38mm 4166mm diameter hole for rigging A Overalll height to the top f typ 4 o a n of the fan guard is 43 1 8 1095mm 86 3 4 2203mm on each side for pr
4. 205 20 9 1 76 34 5 7 3 2 38 17 2 19 8 6 72 32 7 7 3 2 36 16 3 251 19 8 6 75 34 0 10 4 6 38 17 2 18 8 2 71 32 23 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 5 182 82 6 15 6 8 75 34 0 51 23 1 173 78 4 15 6 8 71 32 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 267 121 3 27 12 3 113 51 3 N A 254 115 2 26 11 8 108 49 0 830 N A N A 30 13 6 149 67 6 N A N A 29 13 2 142 64 4 1010 N A N A 60 27 2 154 69 9 N A N A 57 25 9 147 66 7 Quiet Line Condenser Models noes NA 39 17 7 NA 21 95 NA 37 168 NA 20 9 1 119 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 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 129 58 5 N A N A N A 125 55 8 572 N A N A N A 196 88 9 N A N A N A 186 84 4 Table 4 Interconnecting piping refrigerant charge Line Size R 22 1b 100 ft kg 30m R 407C Ib 100 ft kg 30m O D in 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 8 11 7 5 3 2 1 1 0 11 0 5 0 2 2 1 0 3 4 16 6 7 5 3 0 1 4 15 7 7 1 3 1 1 3
5. 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 DPN000666 supplied when factory disconnect is Rev 0 supplied NOTE Refer to specification sheet for full load amp and wire size amp ratings 23 Inspection and Installation Figure 20 Electrical field connections for VFD control condensers Factory installed fuse block on 60Hz units Circuit breaker supplied in lieu of fuse block on 50Hz units 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 prov
6. 15 VFD Controlled 208 230 3 7 46 15 7 2 8 1 15 10 7 116 15 14 2 15 1 20 N A N A N A N A N A N A 460 1 8 2 3 15 3 5 40 15 52 57 15 69 7 4 15 N A N A N A N A N A N A Lee Temp Controlled Fan Cycling 208 230 3 5 44 15 7 0 7 9 15 10 5 11 4 15 14 0 14 9 15 21 0 21 9 25 28 0 28 9 30 460 3 1 7 2 1 15 3 4 3 8 15 51 55 15 68 7 2 15 10 2 10 6 15 13 6 14 0 15 575 1 4 1 8 15 28 32 15 42 46 15 56 60 15 84 88 15 11 2 11 6 15 FLA Full Load Amps WSA Wire Size Amps OPD Maximum Overcurrent Protection Device Table 6 60Hz condenser data Quiet Line Lee Temp controlled fan cycling Model ph 63 119 127 143 214 286 409 572 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 208 230 1 8 2 3 15 36 41 15 54 59 15 7 2 7 7 15 10 8 11 3 15 14 4 14 9 15 460 3 09 1 1 15 18 20 15 27 29 15 3 6 3 8 15 54 56 15 7 2 74 15 575 0 7 0 9 15 1 4 16 15 21 23 15 2 8 3 0 15 42 44 15 56 58 15 FLA Full Load Amps WSA Wire Size Amps OPD Maximum Overcurrent Protection Device Table 7 50Hz condenser full load amp values Condenser Fan Speed VFD Lee Temp Quiet Line Lee Temp Control Type Controlled Controlled C
7. Lee Temp receiver electrical data 50Hz and 60Hz 1 eens 20 Table 9 TroUbleSshOGtin gs ia A A RA ei leat Mas oe ees Nini 36 Introduction 1 0 INTRODUCTION 1 1 Product Description and Features The Liebert condenser is low profile direct drive propeller fan type air cooled unit suitable for mount ing outdoors It provides for the heat rejection of either one or two separate refrigeration circuits matching heat rejection capacity varying with the outdoor ambient temperatures with each corre sponding compressors heat rejection requirements Constructed with an aluminum cabinet and a cop per 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 connec tions 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 1 2 1 2 1 1 2 2 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 co
8. act as a solvent in a refrigeration system Maintaining system cleanliness is extremely important because the oil will tend to bring any foreign matter back to the compressor 3 9 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 Use a flow of dry nitrogen through the piping to prevent the formation of copper oxide scale inside the piping Avoid soft solders such as 50 50 or 95 5 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 Lee Temp condenser is located more than 15 ft 4 6m below the evaporator or if Fan Speed VFD Control Condenser is located more than 30 ft 9 2m below the evaporator Consult factory if piping run exceeds 150 feet 46m equivalent length Keep piping clean and dry especially on units with POE oil R407C or
9. as dr O AS ia 33 6 2 Specrall Proced res cad wary Hare A A oR ede a a 34 6 2 1 Condenser Cleaning lt dls ad a is lA da Delle Eek 34 6 2 2 Maintenance Inspection Checklist o 35 FIGURES Figurei Product model nomenclature 00 cc eee ne ees Inside Front Cover Figure 1 Liebert two fan condenser 0 6 ee eee e een ee eens 1 Figure 2 Typical system configuration indoor unit and outdoor condenser and field piping 3 Figure 3 Condenser planning dimensional data One fan and two fan units 0 000 e cee ees 5 Figure 4 Condenser planning dimensional data Three fan and four fan units 0 0 00 e aes 6 Figure 5 Condenser planning dimensional data Six and eight fan units 0 0 0 0 000 e eee ee 7 Figure 6 Typical condenser footprint dimensions o 8 Figure 7 Piping connection locations for 1 2 3 and 4 fan VFD Control and Fan Speed Condensers 8 Figure 8 Piping connections for 1 2 3 and 4 fan Lee Temp and Quiet Line Condensers 9 Figure 9 Piping connections for 6 and 8 fan Fan Speed Condensers 0 000 c cece eee eens 9 Figure 10 Piping connections for 6 and 8 fan Lee Temp and Quiet Line Condensers 10 Figure 11 Equipment recommended for handling a Liebert condenser nananana cece eens 13 Figure 12 Removing shipping crate 2 0 0 eee e ee eee teen eens 14 Figure 13 Attaching legs and sling to a 1 2 3 or 4 fan condenser for moving
10. 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 sup ply from the condenser before working on the unit 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 clean ing 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 con tinue 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 34 System Maintenance 6 2 2 Maintenance Inspection Checklist Date Prepared By Model Serial Number NOTE Regular inspections are necessary
11. 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 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 Earth 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 25 Inspection and Installation 3 9 Refrigeration Pip
12. onise Solenoid Valve l y See TE Field installed relief valve s required Gaga Valve External for 50 Hz EU CE units rated maximum Compressor Equalizer 480 PSIG 33 Bar ia o i Check Ni Isolation LH m valve Pitch horizontal hot gas piping TENG 1 2 per 10 ft 42mm per 10m Hot Gas Discharge in direction of refrigerantoil flow r lt Expansion Solenoid sight Glass Filter Dryer Liquid Return Isolation Valve Valve valve Factory Refrigerant Piping Components are not supplied by Liebert but are recommended for proper circuit operation and maintenance Field Refrigerant Piping Y Service Schrader Access Connection No Valve Core Service Schrader Access Connection With Valve Core Note Schematic representation shown Do not use for specific connection locations DPNO00798 Two refrigeration circuits provided Single refrigeration circuit shown for clarity Rev 2 Site Preparation 2 0 SITE PREPARATION 2 1 Site Considerations The condensers should be installed in a location offering maximum security and access for mainte nance Avoid ground level sites with public access and areas that contribute to heavy snow or ice accumula tions Utilize Piggyback condensers whenever interior building locations must be used To ensure ade quate air supply Liebert recommends that condensers be installed in an area with clean air away from loose dirt and foreign matter that might cl
13. 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 18mm diame ter bolt in each of the two 5 8 16mm holes in each leg See Figures 3 4 and 5 for anchor dimen sions 17 Inspection and Installation 3 6 3 6 1 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 19 20 and 21 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 veri
14. the installation plans prior to moving the unit to verify clearances NOTICE Risk of damage from forklift Improper handling with the forklift Can cause exterior and or underside damage Keep tines of the forklift level and at a height suitable to fit below the skid NOTICE Risk of unit damage if improperly stored Keep the unit upright indoors and protected from dampness freezing temperatures and contact damage Figure 11 Equipment recommended for handling a Liebert condenser Inspection and Installation 3 2 Handling Unit on the Skid Transport the unit using a fork lift or a crane with sling and spreader bars If using a fork lift make sure the forks if adjustable are spread to the widest allowable distance to still fit under the skid Ensure the fork length is suitable for the unit length When moving the packaged unit do not lift the unit any higher than 6 152mm off the ground Exercise great care if the unit must be lifted higher than 6 152mm Personnel not involved in moving the unit must be at least 20 6m from the lift point of the unit 3 3 Unpacking the Unit Remove outer packaging when ready to install the unit Be sure to locate and set aside the bag of mounting hardware that is to be used for mounting the support legs on the unit Figure 12 Removing shipping crate Three fan unit shown for illustration Methods for other sizes of condensers are the same Inspection and Instal
15. 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 operation 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 Liebert sales office to validate warranty Contact your local Liebert sales representative or Liebert Air Product Support if you have any questions or problems during unit startup and commissioning Local Liebert sales offices and Liebert air product support contacts can be found at www liebert com servicesupport_pages ServiceSupport aspx x servicesupport or by calling 1 800 LIEBERT 32 System Maintenance 6 0 SYSTEM MAINTENANCE 6 1 A WARNING Risk of electric shock Can cause injury or death D
16. 0 268 870 395 enue 139x30x51 140x31x52 C 308 3 760 345 3530x760x1300 123 3 4 _1040 472 3560x790x132 0 131 3 5 DC 214 3 885 401 1165 528 C 415 4 935 424 1235 560 AEE 179x30x51 180x31x52 C 510 4 1230 558 4550x760x1300 158 44 1530 694 4579 790x1320 168 4 5 DC 286 4 1185 537 1485 674 C 616 6 1560 708 144x36x97 291 8 3 2010 912 145x37x97 301 8 4 DC 409 6 1620 735 3660x910x2460 2070 939 3680x940x2460 CD 830 8 1930 875 2430 1102 BOE 184x36x97 185x37x97 CD 1010 8 2910 1321 4g70x910x2460 372 10 3410 1548 4799x940x2460 384 10 DC 572 8 2575 1168 3075 1395 Site Preparation Figure 3 Condenser planning dimensional data One fan and two fan units T OS 43 9 16 43 9 16 1106mm 91 1 2 y 2324mm 43 3 16 44 1097mm 1118mm 18 emy 84 2134mm Note Overall height to the top of fan guard 43 3 16 43 1 8 1095mm 1097mm Liebert recommends a clearance of 36 915mm on each side for i 42 gt ANCHOR PLAN pia ee and component 1067 mm ANCHOR PLAN je ir E 82 2083mm le ie e One Fan 41 316 a Condenser 1046 mm Pi eed i Electri da Two Fan 41 3 16 Box Legs supplied with End Lee Temp option only Condenser 1046mm ony ee Ee L See Figure 6 for typical condenser fo footprint dimensions 1 me i i
17. 3 10 4 0 4 1 4 2 4 3 TABLE OF CONTENTS INTRODUCTIONS sou se ae wh he ee EN A swe e ee a ee ee ee wee dl 1 Product Description and Features 1 Head Pressure Control Types 1 213s VRAIS A A wag te EN 1 1 2 2 Variable Frequency Drive eee eee nee eens 1 1 2 3 Liebert Lee Temp Refrigerant Control 0 onnan ooo 2 Sound evel Options rs a os AA Ae GEE es SBE ERO EE ee 2 TSIT Standard Condenser A owiehe wip tae hes Ayia eee saya See ey ee a owe a 2 1 38 2 Quiet Line Condenser 0 maa die ea ccc eee eee nee e ee een en a 2 Transient Voltage Surge Suppression Option o oo 2 Typical System Configurations 0 ccc ee ene 2 SITE PREPARATION bowl oo cu 3 ea oe are ea eee vaa oe ee oe 4 Sa Considerations 6004 ee hott A wipe a aA ts re O de ates Ae a 4 Dimensions and Weights rin oes a a Rel eee WE Sates Saa Se eee 4 Refrigerant Planning Values 12 INSPECTION AND INSTALLATION 20 00 cece a 13 Equipment Inspection a A Be ak a OS DA DE ON WA een ba WEA TOA 13 Ikl Packing Material jc nhen EE eee eas shee oul ik 2A eee en ei cain 13 Handling Unit on the Skid 2 00 ra plana A 14 Unpacking the Ut a A A A GAME 14 Preparing a 1 2 3 or 4 Fan Condenser for Moving and Installation 15 3 4 1 Removing the Skid and Attaching Slings 0 0 ccc ce eee eens 15 Preparing a 6 Fan or 8 Fan Condenser for Moving and Installation 16 3 5 1 Removing the Skid an
18. 7 8 24 4 11 1 4 4 2 0 23 0 10 4 4 5 1 9 1 1 8 41 4 18 9 7 8 3 5 39 3 17 8 7 8 3 5 1 3 8 63 3 28 7 11 8 5 4 59 8 27 1 11 8 5 4 1 5 8 16 7 7 6 16 7 7 6 12 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 Care fully inspect all items for damage either visible or concealed Report any damage immediately to the carrier and your local Liebert representative File a damage claim with the carrier and send a copy to your local Liebert representative 3 1 1 Packing Material AY All material used to package this unit is recyclable Please save 1t for future use or E dispose of the material appropriately R O SAFETY INFORMATION KT A WARNING Risk of top heavy unit falling over 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 WARNING Risk of sharp edges splinters and exposed fasteners Can cause personal injury Only properly trained and qualified personnel wearing appropriate safety headgear gloves shoes glasses and protective clothing 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
19. H Precision Cooling For Business Critical Continuity Liebert Air Cooled Direct Drive Condensers Installation Operation and Maintenance Manual 50 60Hz a g EMERSON Network Power Figurei Product model nomenclature Example DCDF165 Y D C D F 165 y Condones F Fan Speed Control Reserved L Main Control Lee Temp C No Control Chiller Lee Temp T Ambient Fan Cycle Lee Temp V Variable Frequency Drive VFD Control available only for dual refrigerant circuit condensers D Disconnect Switch S Single Refrigerant Circuit Model Size P 208 230V 1ph 60Hz optional on Fan Speed p Dual Refrigerant Circuit Z 460V 1ph 60Hz Control Chiller amp V 575V 1ph 60Hz Standard Lee Temp W 200 230V 1 ph 50Hz Condensers standard Y 208 230V 3ph 60Hz on Quiet Line and VFD A 460V 3ph 60Hz Control condensers B 575V 3ph 60Hz T TVSS amp Disconnect N 200 230V 3ph 50Hz Switch available only M 380 415V 3ph 50Hz on the VFD Control condensers Single phase voltage is only voltage available as standard on Fan Speed Control 1 fan condensers Three phase voltage is only voltage available as standard CONTROLS EN DD UOUIAGES AEE pare eee on condensers with VFD Control Lee temp receivers and Fan Speed Control 2 8 fan models only VFD Control Condensers are not available in 575 3 60 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
20. 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 Liebert or 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 A pressure relief valve is provided with Liebert Lee Temp condensers A fusible plug is provided on Liebert Fan Speed Control and VFD condensers The Liebert indoor cooling unit has a factory installed high pressure safety switch in the high side refrigerant circuit 26 Inspection and Installation 3 9 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 appli cations Refer to Figures 22 23 and 24 below for additional field installed piping needed at the con denser This piping is needed for proper system performance and for installation interconnecting receivers and head pressure control valves for Lee Temp systems NOTE Keep the evaporator unit and condenser closed with their factory ch
21. RIN Rev 2 0 Isolator Detail A A 28 Inspection and Installation Figure 24 General arrangement Air cooled models with Lee Temp control Condenser Coil Inverted Trap on discharge line to extend 7 1 2 190mm Piping Assembly above coil base te y EX A Rotalock Valve E of A Check PA a Mead Pressure Valve 1 4 6 4mm Pressure Relief kk Zz Valve we Control with Integral Check Valve Ee Z Sight Glass a Traps every 25 ft ze a 7 6m of rise on a Zz Evaporator Liquid Return A Coil hot gas line only Aam L Z de MBE Condenser a CEN 4 W_ Za w y j Z oa Expansion a A a Zz Shutoff Ses Isolation sight alves l Sy Sensing Bulb Valve Glass Filter Liquid Dryer External Return R Equalizers A a Hot Gas Bypass optional Z Compressor P Components are not supplied by Liebert Hot Gas but are recommended for proper Discharge circuit operation and maintenance 4 Components supplied by Liebert and uL Single Circuit Shown must be field installed Factory Piping Various compressor types may be available Optional Piping DPN000681 Field Piping Rev 0 29 Inspection and Installation 3 10 System Dehydration Leak Test and Charging Procedures Procedures for leak check and evacuation of the entire refrigeration system are contained in the installation manual of the
22. anel is standard in the VFD Condenser models only Surge protection is necessary because rooftop voltage supply often is not conditioned the same as the voltage supply inside the data center The TVSS is designed to protect sensitive electronic condenser components 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 TVSS may require replacement to restore surge pro tection to the condenser Typical System Configurations Figure 2 shows a single refrigeration circuit diagram displaying the indoor air conditioning unit the outdoor condenser VFD Fan Speed Control or Lee Temp and field supplied interconnection piping Introduction Figure 2 Typical system configuration indoor unit and outdoor condenser and field piping Relief Check valve Service Valve Valve Inverted trap on discharge amp liquid lines to extend above base of coil by a minimum of 7 1 2 190mm Liquid Return ee vv Head Pressure Control Valve Lee Temp Receiver Fusible l HEY a Ie Condenser Coil Condenser Coil Fan Speed Lee Temp and VFD p eat panna ho Hot Gas Lee Temp Discharge A l Traps every I l l l 25ft 7 6m l l l l 28 42kW Digital Solenoid Valva O Evaporator Coil a 53 70kW Digital u
23. arge 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 Figure 22 VFD and Fan Speed Control condenser piping i Traps to Extend Above Base of Entering Hot Y A Coil by a Minimum of 7 1 2 190mm Gas Line Leading A Liquid Line Inverted Traps Field Supplied Metal Fasten liquid and hot gas lines Clamp to leg using flat surface clamps See with isolators field supplied Detail Isolator Support field piping separately A A Detail A A DPN001065 to avoid coil damage and loss of charge Rev 0 27 Inspection and Installation Figure 23 Lee Temp head pressure control condenser piping mn Inverted Traps field supplied to extend 8 203mm above coil base Entering Hot Gas Line Fasten liquid and hot gas lines to leg using flat surface clamps with isolators field supplied a Support field piping separately LES to avoid coil damage and loss ne of charge Position elbow to direct See Detail A A relief valve downward Metal DPN000669 C
24. between like numbered terminals 70 71 on both units Wiring must be sized so that the voltage drop in the circuit does not exceed 1 volt See Figures 19 20 and 21 and indoor unit manual for loca tion of terminals on condensers and indoor units Low Voltage Monitoring Wiring TCDV 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 sche matic supplied with the unit for details Contact closure on VFD Drive monitoring terminals indicates a permanent VFD fault A factory pro grammed VFD must be used as the replacement Contact closure on TVSS monitoring terminals may indicate unit trouble ranging from electrical sup ply issues to TVSS replacement required A properly trained and qualified electrician is required Electrical Connections Electrical service is required for all models Electrical service shall conform to national and local elec trical codes Refer to equipment nameplate regarding wire size and circuit protection requirements Refer to electrical schematic when making connections Refer to Figures 19 20 and 21 for electrical service entrances into unit A manual electrical disconnect switch should be installed in accordance with local codes Consult local codes for external discon
25. can be safely removed Place protective material under the unit to protect it from scrapes and gouges Lower the condenser onto the material Lower the condenser to an angle and distance that will allow attaching the legs to one side of the condenser The number of legs varies according to the condenser model Install the legs provided by Liebert on the condenser with the mounting bolts also provided by Liebert Liebert recommends using a 5 8 socket and ratchet Turn the condenser so that the legs just installed support one side of the unit as shown in Step 3 in Figure 14 Remove the sling and it attach it to the opposite side of the condenser as shown in Step 4 in Figure 15 Raise the condenser to an angle to safely install legs on the opposite side of the condenser Lower the condenser so all legs support it 10 Place slings on both sides of the condenser to lift and move it to the installation location Figure 14 Attaching legs to a 6 fan or 8 fan unit Protective Material Under the Condenser Six fan unit shown for illustration Method for eight fan condenser is the same 16 Inspection and Installation Figure 15 Attaching sling to a 6 fan or 8 fan unit for moving Six fan unit shown for illustration Method for 8 fan condenser is the same 3 5 2 Mounting the Condenser The condenser must be installed so that it is level within 1 2 13mm to ensure proper refrigerant flow For roof installation mount
26. d Attaching Slings 0 0 ce eee eens 16 3 5 2 Mounting the Condenser 0 0 0 0 ccc ee cee ene n eee e eee eens 17 Electrical Supply Preparation 0 0 000 ee cece eee e eee e eee n ee 18 36 1 Lime Voltage WIN scada ado tae td 18 3 6 2 Low Voltage Control Wiring ooooooo en een e eee n nena 20 3 6 3 Low Voltage Monitoring Wiring TCDV Only 20 Electrical Connections uedes aea ooa ds A AAA ek laz cube 20 3 7 1 VED Control Condensers TCDV only 2 0 0 0 cette nnn 21 3 7 2 Wye Connected Power Supply 0 0 eee een eee n ee ens 21 3 7 3 Delta Connected Power Supply 21 Electrical Field Connection Descriptions 0 0 ccc ccc eee eee ens 23 Refrigeration Piping Connections rr 26 8 9 1 Piping Guidelines a spe ee BS Re RN FE Bees ORR WS OLR lacie BM oda tes 26 3 92 Eleld Piping Installations cv a ls a ec Ae RAEE abe Pale Dg hele TAGS en 27 System Dehydration Leak Test and Charging Procedures 0 000 c cece eens 30 CHECKLIST FOR COMPLETED INSTALLATION 0000 eee e cece eee e eee e eens 31 Moving and Placing Equipment 31 Electrical is A A BR Oa Ree A ee a 31 Pip Sig ies Ss ne phage bases wei SS ee ee A Ve ea a ato 31 4 4 MOEN GB naaa rodas riot as lid dai 31 5 0 OPERATION vi A ES NS AE 32 5 1 tatu Chacel do Eo da e ta O ales DO ete hasi 32 5 2 Satin tdt diia id oN 32 6 0 SYSTEM MAINTENANCE ui a a a ba eae A da 33 6 1 General Procedures ais As a als a
27. en liquid and hot gas lines to leg using flat surface clamps with isolators field provided i Support field piping separately to avoid coil damage and loss of charge See Detail A A E Metal clamp Leaving Liquid Line Position elbow to direct relief valve downward isolator DPN001067 Rev 0 Detail A A Figure 9 Piping connections for 6 and 8 fan Fan Speed Condensers Access Valve Hot Gas on Condensers Typ 2 Inlet C ti delta alos aa Inverted traps field supplied pia eae Entering to extend above base of coil by Hot Gas a minimum of 7 1 2 190mm Line Leaving S L Liquid Line Metal Condenser Clamp Connections See Typical Detail Isolator A A Fasten liquid and hot gas lines Detail A A to leg using flat surface clamps DPN000668 Rev 01 with isolators field supplied Site Preparation Figure 10 Piping connections for 6 and 8 fan Lee Temp and Quiet Line Condensers Access Valve Hot Gas on Condensers 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 peared Gaui 1 Entering Hot onnections A qe Gas Line Typical Line Hot Gas Line a a Oo Leaving Liquid Line Fasten liquid and hot gas lines to leg using flat surface clamps with isolators field supplied Ponnan ABaw to direct relief Detail valve downward A A Metal Clamp Note Two circuit
28. fy that the electrical power is Off 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 appli cable 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 requirement
29. ided in bottom of electric box Electric service connection terminals with factory supplied disconnect Factory installed disconnect switch Alarm Connections Field supplied 24V Class 1 wiring to remote alarm circuits Variable Frequency Drive VFD alarm contact connections 13 14 Transient Voltage Surge Suppressor TVSS alarm contact connections 11 12 Electric service entrance A 7 8 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 yy Y Earth ground connection 60Hz Electric service Connection terminal for not by Liebert Earth ground bar optional on 50Hz only field supplied earth grounding wire Connection terminals with factory when factory disconnect is supplied ground from each high voltage component for field supplied earth grounding wire DPN001051 Rev 0 NOTE Refer to specification sheet for full load amp and wire size amp ratings 24 Inspection and Installation Figure 21 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
30. indoor unit Use the proper manual section corresponding to the winter control system used on the condenser VFD Fan Speed Control or Lee Temp Control and the refriger ant to be charged into the system 30 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 the equipment __ 3 Equipment is level and mounting fasteners are tight 42 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 TCDV condensers only Check for Delta Connected Power Supply and make any needed adjustments per 3 7 1 VFD Control Condensers TCDV 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 indo
31. ing Connections A WARNING Risk of explosive discharge from high pressure refrigerant Can cause equipment damage injury or death Relieve pressure before working with piping A WARNING Risk of refrigerant system rupture or explosion from overpressurization Can cause equipment damage injury or death If a pressure relief device is not provided with the condenser unit the system installer must provide and install a discharge pressure relief valve rated for a maximum of 500 psig 34bar in the high side refrigerant circuit Do not install a shutoff valve between the compressor and the field installed relief valve One or more additional pressure relief valves are required downstream of any and all field installed isolation valves as shown in Figures 2 and 24 Do not isolate any refrigerant circuits from overpressurization protection NOTE POE polyol ester oil required with R407C and used with some R22 systems is much more hygroscopic than mineral oils This means that POE oil absorbs water 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
32. isconnect 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 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 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 e 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 tem peratures and loss of cooling In winter do not permit snow to accumulate around the sides or under neath the condenser coil Monthly and semi annual inspections and maintenance are recommended for proper system opera tion Use copies of 6 2 2 Maintenance Inspection Checklist for each of these inspections
33. lation 3 4 Preparing a 1 2 3 or 4 Fan Condenser for Moving and Installation 3 4 1 Removing the Skid and Attaching Slings 1 Install the legs provided by Liebert on the condenser with the mounting bolts also provided by Liebert Liebert recommends using a 5 8 socket and ratchet 2 Place slings or equivalent items through holes in the legs on 1 2 and 3 fan condensers see Step 2 and Step 3 in Figure 13 Use eyebolts for attaching a sling or similar equipment to 4 fan units 3 Using spreader bars and a crane or similar lifting equipment lift the condenser off the skid to allow safely turning the condenser upright 4 Lift the condenser and move it to the installation location Figure 13 Attaching legs and sling to a 1 2 3 or 4 fan condenser for moving Three fan unit shown for illustration Method for 1 fan and 2 fan condensers is the same Attach sling to 4 fan condensers with eyebolts Inspection and Installation 3 5 Preparing a 6 Fan or 8 Fan Condenser for Moving and Installation 3 5 1 Removing the Skid and Attaching Slings The following procedure is one recommended process for removing a Liebert condenser from its ship ping skid Other methods may be used provided that the methods are safe for personnel the con denser and equipment 1 2 3 8 9 Place a sling through to rigging attachment points as shown in Step 1 in Figure 14 Raise the condenser high enough that the skid
34. nect 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 NOTICE 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 NOTICE Use copper wiring only Make sure that all conections are tight 20 Inspection and Installation 3 7 1 VFD Control Condensers TCDV 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 voltage and Phase to Neutral voltage typically used for small single phase loads 120 VAC or 277 VAC See Figure 16 Delta connected power only has one voltage level that can be measured Phase to Phase See Figure 17 3 7 2 Wye Connected Power Supply No control changes are required if the Liebert VFD Control Condenser will be operated with Wye con nected power Figure 16 Wye connected power diagram Phase A Winding B Phase B Winding Neutral Winding C Phase C 3 7 3 Delta Con
35. nected Power Supply Figure 17 Delta connected power diagram Phase A Winding Winding A B C A Phase B Winding B C Phase C 21 Inspection and Installation 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 20 3 Using Figure 18 locate the small black plastic tab immediately to the right of the wiring connection block of the VFD control 4 Pull the tab to fully extend it disconnecting the EMC filter from the circuit Figure 18 Disconnecting EMC filter for operation with Delta connected power EMC filter Tab fully inserted EMC filter fitted Internal EMC filter _ j Tab fully extended EMC filter disconnected 22 Inspection and Installation 3 8 Electrical Field Connection Descriptions Figure 19 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 ckit Control interlock 70 71 Field supplied Class 2 wiring to interlock condenser 24V controls to Liebert room unit 7 8 in 22 2mm diameter
36. nnections to TVSS are faulty Locate connection problem and repair A surge exceeding the rating of the TVSS has occurred Replace TVSS and inspect other components for damage and replace them if necessary 36 System Maintenance NOTES 37 System Maintenance 38 Ensuring The High Availability Of Mission Critical Data And Applications AAA Emerson Network Power the global leader in enabling business critical Technical Support Service continuity ensures network resiliency and adaptability through _ Web Site a family of technologies including Liebert power and cooling www liebert com Monitoring technologies that protect and support business critical systems Liebert solutions employ an adaptive architecture that responds POUA EM monitoring emersonnetworkpower com to changes in criticality density and capacity Enterprises benefit Outside the US 614 841 6755 from greater IT system availability operational flexibility and Single Phase UPS reduced capital equipment and operating costs 300 222 5877 upstech emersonnetworkpower com Outside the US 614 841 6755 Three Phase UPS 800 543 2378 powertech emersonnetworkpower com 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 Ital
37. ntrol 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 thermostats This system provides refrigerant head pressure control for out door 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 con trol valves extra refrigerant and insulated refrigerant receivers with heater pads It works by flood ing 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 refrige
38. og 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 Lee Temp receiver tanks should be mounted on the condenser legs for proper operation Remote mounting of tanks must be within 10 feet of the condenser Contact Liebert Application Engineering Department for assistance 2 2 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 m Ib kg in mm ft m C 083 1 330 150 415 188 a 59x30x51 60x31x52 C 104 1 350 159 1500x760x1300 5201 4 485 197 4590x790x1320 56 1 5 DC 063 1 350 159 435 197 C 165 2 490 222 690 313 C 205 2 560 254 760 345 G 97x30x51 98x31x52 DC 119 2 490 222 2460x760x1300 86 2 4 690 313 2490x790x1320 91 2 5 DC 127 2 560 254 760 345 DC 143 2 655 297 855 388 C 251 3 59
39. ontrolled Fan Cycling Controlled Fan Cycling Input Input Input Input Model of Voltage Phase Voltage Phase Voltage Phase Model Voltage Phase Fans 200 230 1 380 415 3 200 230 3 380 415 3 200 230 3 380 415 3 200 230 3 380 415 3 83 104 1 4 0 3 7 1 8 3 5 1 7 63 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 21 0 10 2 409 10 8 5 4 830 1010 8 14 2 28 0 13 6 572 14 4 7 2 19 Inspection and Installation 3 6 2 3 6 3 3 7 Table 8 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 2 8 4 2 0 7 14 2 1 Wire Size Amps 1 8 3 5 53 0 9 18 2 7 Maximum Overcurrent Protection Device Amps 15 15 15 15 15 15 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 cop per wire Class 1 for TCDV models and Class 2 for all other condenser models is required for connec tion
40. oper ANCHOR PLAN operation and component gt 22 122 3099 mm access 1067mm fzor dace ei gt F 19 Y Electric a Sas Ei tor twoleal Legs supplied with ET ee Figure 6 for typica Box ero option only Six Fan a condenser footprint dimensions End Condenser ANCHOR PLAN AE E oe my 0 2032 mm mm Pomo 7 H Electric Eight F Box Legs supplied with ight ran 84 3 4 End Lee Temp option only Condenser 2153mm N Site Preparation Figure 6 Typical condenser footprint dimensions 25 4mm 1 3 4 4 1 4 44 5mm 108mm T O SN 3 1 3 4 44 5mm 9 16 14mm Typical Diameter 4 1 4 m 50 8mm Figure 7 Piping connection locations for 1 2 3 and 4 fan VFD Control and Fan Speed Condensers l TP Traps to extend above Entering P coil base by a minimum Hot Gas Line of 7 1 2 190mm Leaving a Inverted Traps Liquid Line field supplied Metal Fasten liquid and hot gas lines clamp to leg using flat surface clamps See Isolatot with isolators field supplied Detail Support field piping separately A A Detail A A to avoid coil damage and loss of charge DPN000665 Rev 02 Site Preparation Figure 8 Piping connections for 1 2 3 and 4 fan Lee Temp and Quiet Line Condensers Inverted Traps field supplied Hot Gas to extend 8 203mm above Line Liguid coil base Entering Hot Gas Line Fast
41. or cooling unit refrigeration circuit __ 2 Piping leak checked evacuated and charged 3 Piping is properly sized sloped and trapped for proper oil return ___ 4 Piping is routed to reduce potential of rub through or chaffing 4 4 Other __ 1 Fans rotate freely and in proper direction __ 2 Adjust ambient 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 31 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
42. rant 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 Lee Temp control is required for Quiet Line Condensers Sound Level Options Standard Condenser All Fan Speed and VFD Condensers are standard condensers with moderate operating sound levels Lee Temp Condensers with standard size coils matching Fan Speed and VFD coil sizes are standard sound level condensers Quiet Line Condenser 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 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 Lee Temp control is required for Quiet Line Condensers Transient Voltage Surge Suppression Option Transient Voltage Surge Suppression T VSS p
43. s A unit disconnect is standard on VFD and Quiet Line Condensers and is optional on Fan Speed Control and standard Lee Temp condensers However a site disconnect may be required per local code to iso late 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 pro vided near terminal board NOTE Lee Temp and Quiet Line Condensers require a separate line voltage electrical supply for the heated receivers See Table 8 for power requirements 18 Inspection and Installation Table 5 60Hz condenser data Model 83 104 165 205 251 308 415 510 616 830 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 4 8 6 0 1B 460 1 25 31 18 575 1 9 24 158 l 208 230 8 3 9 5 15 11 8 13 0 15 15 3 16 5 20 23 6 24 8 25 30 6 31 8 35 460 3 42 48 15 159 65 15 76 8 2 15 11 8 12 4 15 15 2 15 8 20 575 33 38 15 4 7 5 2 15 61 66 15 94 99 15 12 2 12 7
44. s supplied single circuit shown for clarity Isolator Detail A A DPN000670 Rev 01 10 Site Preparation Table 2 Condenser physical data Number Number Connection Size Geely Net Weight Model of Fans of Circuits Hot Gas Liquid Ib kg Standard Models CS 083 1 1 7 8 5 8 295 134 CD 104 1 2 7 8 1 2 315 143 CS 104 1 1 1 1 8 5 8 315 143 CD 165 2 2 7 8 5 8 425 193 CS 165 2 1 1 1 8 7 8 425 193 CD 205 2 2 1 1 8 7 8 495 225 CS 205 2 1 1 1 8 7 8 495 225 CD 251 3 2 1 1 8 7 8 500 227 CS 251 3 1 1 3 8 1 1 8 500 227 CD 308 3 2 1 3 8 1 1 8 670 304 CS 308 3 1 1 5 8 1 1 8 670 304 CD 415 4 2 1 3 8 1 1 8 840 381 CS 415 4 1 1 5 8 1 1 8 840 381 CD 510 4 2 1 5 8 1 1 8 1188 539 CD 616 6 2 1 5 8 1 1 8 1380 626 Cs 616 1 6 1 2 1 5 8 2 1 1 8 1380 626 CD 830 8 2 1 5 8 1 1 8 1750 794 CD 1010 8 2 2 1 8 1 5 8 2640 1197 Quiet Line Models DCS 063 1 1 1 1 8 5 8 315 143 DCD 063 1 2 7 8 1 2 315 143 DCS 119 2 1 1 1 8 7 8 425 193 DCD 119 2 1 1 1 8 7 8 425 193 DCS 127 2 1 1 1 8 7 8 495 225 DCD 127 2 2 1 1 8 7 8 495 225 DCS 143 2 1 1 1 8 7 8 515 234 DCD 143 2 2 1 1 8 7 8 515 234 DCS 214 3 1 1 5 8 1 1 8 840 381 DCD 214 3 2 1 1 8 7 8 840 381 DCS 286 4 1 2 1 8 1 1 8 1105 501 DCD 286 4 2 1 1 8 7 8 1105 501 DCD 409 6 2 1 5 8 1 1 8 1380 626 DCD 572 8 2 2 1 8 1 1 8 2430 1102 1 In
45. terconnection piping field supplied and installed required Configure piping for parallel refrigerant flow between condenser sections 11 Site Preparation Refrigerant Planning Values Planning for the refrigerant requirements of the completed system is the addition of the charges from Indoor Unit Condenser including Lee Temp receiver if used and the interconnecting piping Tables 3 and 4 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 3 R 22 and R 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 FSC or includes FSC or includes FSC or includes Models VFD receiver VFD receiver VFD receiver VFD receiver 104 8 3 6 39 17 7 7 3 2 21 9 5 8 3 6 37 16 8 7 3 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
46. 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 Piping 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 receiver tank if equipped based on procedures in the indoor unit s manual Continuous system operation required 5 Check all refrigerant lines and capillaries for vibration isolation Support as necessary ___ 5 Wash coil as needed 6 No refrigerant leaks 6 Repair bent or damaged fins Condenser Electrical Panel Condenser Electric Panel __ 1 On TCDV models check TVSS ___1 Check all electrical connections oO status indicator ___ 2 Check contactors for pitting ignt ___ 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 35 System Maintenance Table 9 Troubleshooting Symp
47. tom 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 to 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 TVSS 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 co
48. y 39 0499719111 While every precaution has been taken to ensure the accuracy e and completeness of this literature Liebert Corporation assumes no Fax 39 049 5841 251 responsibility and disclaims all liability for damages resulting from use of Asia this information or for any errors or omissions 7 F Dah Sing Financial Centre 2007 Liebert Corporation 108 Gloucester Road Wanchai All rights reserved throughout the world Specifications subject to change without notice Hong Kong Liebert is a registered trademark of Liebert Corporation 852 2572220 All names referred to are trademarks Fax 852 28029250 or registered trademarks of their respective owners SL 10066_REVO_12 07 Emerson Network Power The global leader in enabling Business Critical Continuity EmersonNetworkPower com MH AC Power HI Embedded Computing I Outside Plant HI Racks amp Integrated Cabinets I Connectivity MI Embedded Power HI Power Switching amp Controls IE Services HI DC Power HF Monitoring HI Precision Cooling I Surge Protection Business Critical Continuity Emerson Network Power and the Emerson Network Power logo are trademarks and service marks of Emerson Electric Co 2007 Emerson Electric Co
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