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Large Air-CooledCondensing UnitsTechnical Bulletin: LACC 010 052422Products that provide lasting solutions.

NOTE:Refrigeration systems identified with black shading are notintended for use in Walk-In Coolers or Freezers whereUS Department of Energy (DOE) or Natural Resources Canada(NRCan) efficiency requirements apply.SEE KRACK.COM FOR DETAILS.LARGE AIR-COOLED CONDENSING UNITSSpecifications subject to change without notice.

Large Air-Cooled Condensing UnitsTable of ContentsModel IntroductionControl Panel NomenclatureFeatures for All Models23CS Single SystemsCSD Medium Temperature R-404ACSD Medium Temperature R-407ACSD Medium Temperature R-448ACSE Medium Temperature R-404ACSE Medium Temperature R-407ACSE Medium Temperature R-448ACSB Medium Temperature R-404ACSB Medium Temperature R-407ACSB Medium Temperature R-448ACSD Low Temperature R-404ACSD Low Temperature R-407ACSD Low Temperature R-448ACSE Low Temperature R-404ACSE Low Temperature R-407ACSE Low Temperature R-448ACSB Low Temperature R-404ACSB Low Temperature R-407ACSB Low Temperature R-448ACSD MCA / MOPD Calculation45678910111213141516171819202122CS Single Series Model SpecificationsAnnual Walk-In Energy Factor (AWEF)- CSB Single Series Units- CSD Single Series Units- CSE Single Series Units2323242526CP Parallel SystemsCPD Medium Temperature R-404ACPD Medium Temperature R-407ACPD Medium Temperature R-448ACPE Medium Temperature R-404ACPE Medium Temperature R-407ACPE Medium Temperature R-448ACPB Medium Temperature R-404ACPB Medium Temperature R-407ACPB Medium Temperature R-448ACPD Low Temperature R-404ACPD Low Temperature R-407ACPD Low Temperature R-448ACPE Low Temperature R-404ACPE Low Temperature R-407ACPE Low Temperature R-448ACPB Low Temperature R-404A28293031323334353637383940414243CPB Low Temperature R-407ACPB Low Temperature R-448ACPD MCA / MOPD Calculation444546CP Parallel Series Model SpecificationsAnnual Walk-In Energy Factor (AWEF)- CPB Parallel Series Units- CPD Parallel Series Units- CPE Parallel Series Units4747484950CD Dual SystemsCDD Medium Temperature R-404ACDD Medium Temperature R-407ACDD Medium Temperature R-448ACDE Medium Temperature R-404ACDE Medium Temperature R-407ACDE Medium Temperature R-448ACDB Medium Temperature R-404ACDB Medium Temperature R-407ACDB Medium Temperature R-448ACDD Low Temperature R-404ACDD Low Temperature R-407ACDD Low Temperature R-448ACDE Low Temperature R-404ACDE Low Temperature R-407ACDE Low Temperature R-448ACDB Low Temperature R-404ACDB Low Temperature R-407ACDB Low Temperature R-448ACDD MCA / MOPD D Dual Series Model Specifications71Dimensional DrawingsCS Single SystemsCP Parallel SystemsCD Dual Systems727477Piping Schematics80WarrantyPlease refer to our website at www.krack.comLARGE AIR-COOLED CONDENSING UNITSSpecifications subject to change without notice.1

Model IntroductionControl Panel NomenclatureCharacter Position: 1,23CSB4-5,6,7,891011120300-LQMCONDENSING UNIT FAMILY:CS - Single CompressorCP - Parallel CompressorCD - Dual CompressorCOMPRESSOR MANUFACTURER:D - Copeland DiscusB - Bitzer Ecoline, Motor 2*E - Bitzer Ecoline, Motor 1**TOTAL HP AND CONDENSER:xxxyxxx - Total Horsepowery - 0 for Standard Condenser1 for Oversized Condenser2 for Title 24 CondenserVOLTAGE:K - 208-230/3/60M - 460/3/60P - 575/3/60U - 380/3/50(use 460/3 for electrical info)REFRIGERANT:S - R-404AP - R-507AQ - R-407AF - R-407FT - R-448AR - R-449AAPPLICATION TEMPERATURE:M - MediumL - Low* Low and medium temperatures** Medium and high temperaturesStandard Features for All ModelsLarge Air-Cooled Condensing Units Available in Standard, Oversize, and Title 24 Model ConfigurationsnMedium Temperature R-404A, R-407A, and R-448AnLow Temperature R-404A, R-407A, and R-448AModelsn CS Series Units are new, more efficiently sized units that have a reduced footprint,more standard features and provide increased options for sizing large jobs.n CP Series Parallel Units are two compressors piped together to provide one refrigeration circuit.n CD Series Dual Units are two compressors piped independently for a separate circuit operation.2LARGE AIR-COOLED CONDENSING UNITSSpecifications subject to change without notice.

Model IntroductionFeatures for All ModelsCompressornnnnnnnn BitzerEcoline Compressors or Copeland DiscusCompressors (CS, CP and CD models). Factory balanced and rigid mounted to reduce riskof line fatigue failure and vibration eliminator leaks. Internal motor overheat protection. Crankcase heater is de-energized during compressoroperation for energy savings. Oil level sight glass. CS, CP and CD models use an internal drivenshaft oil pump with manual reset oil safety control. Back-seating suction and discharge valves. Safety controls are factory installed using armoredcapillary tubes to prevent leaks with automatic resetlow pressure and manual reset high pressurecontrols standard.Control PanelnnnnnnnRefrigerant CircuitnnnReceivernn mply sized receivers are sized to hold condenserAflooding charge, evaporator charge and 100'of liquid line. Pressure relief valve and charging valve are standard.Condensernnnnnnnnn onstructed with 3/8" grooved tubing forCmaximum efficiency. Sub-cooling circuit cools liquid leaving the receiver toensure a solid column of liquid at the expansion valve. Adjustable head pressure system (flooding) forlow ambient operation. Mechanically bonded, die formed, aluminum fin stockwith full self-spacing collars. Maximum 10 FPI for efficiency and ease of maintenance. Generous sizing allows low head pressure operation. Oversized condenser provides an option for lowertemperature difference for high ambient applications. Suspended coil design eliminates tube sheet leaks. Title 24 condenser option exceeds minimum efficiencyrequired for California and requires the addition of aVariable Speed fans (K motors) or ship loose VFD with3 phase motors, and controller capable of floatinghead pressure.Condenser Fansnnnnnn 0" statically and dynamically balanced direct3drive fans with a separate motor for each fan. Fan sections are divided by full width baffles to preventair by-pass. Three phase 1.5 HP motors operate fans at 1140 RPM. Each fan is protected by a heavy gauge, corrosionresistant fan guard. Inverter Duty Suitable motor (230/3 and 460/3 only). The “swept-wing” blade design for lower noise levels. Fullyenclosed and weather proofed. Single point connections provide reliable distributionto panel components. Dual compartments, separate line voltage and controlsfor safety during service. Lockable with field supplied padlock. Manual pump down switch for ease of service. 230 V; single phase control voltage is standard.- A transformer is included where necessary. Power and control circuit terminal strip. eplaceable core liquid line filter drier.R Sight glass at receiver outlet for charging. Suction accumulator is included on low temperatureunits.Construction Featuresn Galvanized cabinet.Optional Featuresnnnnnnnnnnnnnn1 15 control voltage with transformer. Oil separator system to activate flow of oil.(Recommended for room temperatures of -10 Fand below.) Suction accumulator on medium temperature. Sealed or replaceable core suction filter. Heated and insulated receiver. Electrical control panel with all necessary controls to runelectric defrost evaporators (includes timer, contactors). Air defrost timer. Fused disconnect shipped loose. Mounted non-fused disconnect with interlock. Cylinder unloaders for compressors. Alternate fin materials, such as vinyl and copper, can bespecified for adverse environmental conditions. Condenser access/clean out doors. Electrofin condenser coating. Hurricane-rated kits available.Noten Additional information will be given per model ontheir respective pages.LARGE AIR-COOLED CONDENSING UNITSSpecifications subject to change without notice.3