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r410a // Hermetic Scroll comprESSorS - · PDF filer410a // Hermetic Scroll comprESSorS. ... While the scroll compressors of the ORBIT 8 series for ... For the selection of contactors,

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  • VSD Operation

    60 Hz // eSP-133-1

    OrBit 8 StanDarD anD BOreal: VariaBle SPeeD DriVe

    r410a // Hermetic

    Scroll comprESSorS

  • 2 ESP-133-1

    ORBIT 8 with variable speed drive (VSD)

    While the scroll compressors of the ORBIT 8 series for R410A are characterized by high full load and seasonal efficiency, low sound levels, and high reliability, they are also now suitable for use with variable speed drives. VSD capable scroll compressors from BITZER give system designers even more solutions to the challenge of maintaining full load and rating point efficiency levels, while also increasing efficiency at part load points where equipment operates during most of the year. Typical options include downsizing the nominal compressor displacement to a part-load capacity and using the over-speed to achieve full capacity. Using the reduced speed to further reduce noise emissions. Or, taking advantage of reduced condensing pressures associated with part-load operation to operate with reduced power consumption. Coupled with BITZERs unique medium temperature optimization technology, system designers have never had so many options to satisfy their customers needs.

    Wide speed range

    The ORBIT 8 with VSD capability provides smooth and efficient operation from 35 to 75 Hz*. While many designers use tandem and trio compounds to achieve simple and efficient capacity staging in chiller applications, the VSD capability of the ORBIT 8 provides new options for designers of refrigerant-to-air systems who dont have the buffering effects of a fluid loop. The fast response of the ORBIT 8 with VSD ensures optimum temperature control.

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    3 ~

    T

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    T

    T

    U

    I

    T1

    4

    3

    6

    5

    2

    ZK

    30

    454545

    555555 606060

    757575

    HzHz

    404040

    505050656565

    707070

    35

    808080

    * GSD80421 & GSD80485: 35 .. 65 Hz

  • 3ESP-133-1

    High cooling capacity

    The large capacity range of the ORBIT 8 series is enhanced with the ability to either slow down, or speed up depending on demand. This in creased range can allow users the option to reduce the number, size and variety of compressors stocked in their facility thereby reducing their working capital requirements.

    Heat pump application

    The ORBIT 8 with VSD capability is an ideal solution for designers looking for high system performance. While a standard scroll compressor must cycle on/off to achieve a building heat load at high evaporating temperatures, a scroll with VSD can easily follow the characteristics. In addition, BITZER provides a large application envelope precisely in the area most needed by heat pumps. Off-setting low refrigerant mass flow rates associated with these conditions is now possible with BITZERs ORBIT 8 with VSD capability.

    IPLV advantage

    While ORBIT 8 is known for its optimi zation technology that increases IPLV from 5 to 15%, these benefits are further enhances with the application of VSD technology. Designers can take advantage of the lower condensing pressures associated with part-load operation and further reduce their power consumption.This is in particular of advantage with refrigerant-to-air systems but also for chillers with two compressors (one with VSD) for stepless modulation of the required cooling demand.

    50

    40

    30

    20

    10

    40 GSD8

    0182

    V

    GSD8

    0385

    V

    GSD8

    0421

    V

    ORBIT 8 Nominal Speed ORBIT 8 Variable Speed

    Cap

    acit

    y (T

    ons

    acc

    ord

    ing

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    AR

    I 540

    )

    GSD8

    0235

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    GSD8

    0295

    V GSD

    8048

    5V

    Hea

    t P

    ump

    Cap

    acit

    y [B

    tu/h

    ]

    Typical Heat Pump Capacity vs. Heating Load

    Ambient Temperature [F] Heat Load Standard Scroll Compressor ORBIT 8 Variable Speed

    SupplementalHeat required

    Bivalent Point

    IPLV for Refrigerant-to-Air Systems

    Btu

    /(W

    x h

    )

    25

    20

    15

    Standard

    Variable Speed

    +15

    % S

    easo

    nal

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  • 4 ESP-133-1

    R410A

    R410A160

    140

    120

    100

    6060400 20

    SDT [F]

    SST [F]

    80

    -20

    SH = 20F

    35 Hz

    Application Limits

    BITZER ORBIT 8 with VSD

    BITZER ORBIT 8 Boreal with VSD

    SST Saturated suction tempeature (F) SH Suction superheat (F) SDT Saturated discharge temperature (F)

    35 Hz

    Application after consultation with BITZER

  • 5ESP-133-1

    Performance data

    Performance data are based on ARI 540 conditions.Saturated suction and discharge temperatures correspond to dew point conditions (saturated vapor).

    Performance data based on 20F suction superheat and 15F subcooling .

    Compressor type SST (F) 45 45 45 45 45 45 45 45 45

    SDT (F) 130 130 130 120 120 120 100 100 100Frequency (Hz) 35 60 75 (65) 35 60 75 (65) 35 60 75 (65)

    R410A Q 86 181 213 96 194 230 115 220 263

    GSD80182VA P 9.4 16.7 20.0 8.0 14.9 17.8 5.8 11.9 14.2

    EER 9.1 10.8 10.6 12.0 13.1 12.9 19.8 18.4 18.4

    Q 118 238 285 132 257 307 157 293 350

    GSD80235VA P 13.4 22.9 27.2 11.4 20.1 24.2 8.3 15.6 19.4

    EER 8.8 10.4 10.5 11.5 12.8 12.7 19.0 18.8 18.1

    Q 152 297 362 170 322 392 203 368 448

    GSD80295VA P 17.5 28.2 34.9 14.9 24.8 30.9 10.8 19.3 24.5

    EER 8.7 10.5 10.4 11.5 13.0 12.7 18.8 19.1 18.3

    Q 204 386 474 225 417 510 262 474 578

    GSD80385VA P 21.4 35.5 43.9 18.3 31.4 39.3 13.6 24.9 31.8

    EER 9.5 10.9 10.8 12.3 13.3 13.0 19.2 19.0 18.2

    Q 221 419 446 245 453 481 288 517 549

    GSD80421VA P 23.5 38.9 40.8 20.0 34.4 36.3 14.9 27.1 28.9 EER 9.4 10.8 10.9 12.3 13.2 13.3 19.4 19.1 19.0

    Q 251 473 504 282 513 545 331 586 622

    GSD80485VA P 27.2 44.2 46.8 23.0 39.0 41.5 16.9 30.8 33.1 EER 9.2 10.7 10.8 12.3 13.1 13.1 19.7 19.0 18.8

    SST (F) 45 45 45 45 45 45

    Compressor type SDT (F) 115 115 115 80 80 80Frequency (Hz) 35 60 75 (65) 35 60 75 (65)

    Q 144 275 318 186 339 395

    GSD80235VW P 11.0 19.1 23.2 5.8 11.6 14.4

    EER 13.0 14.4 13.7 31.9 29.2 27.3

    Q 181 332 400 233 410 495

    GSD80295VW P 13.7 23.2 29.1 7.3 13.8 18.1

    EER 13.1 14.3 13.8 32.1 29.7 27.4

    Q 227 482 516 295 594 635

    GSD80385VW P 17.6 34.8 37.9 9.5 21.8 24.1

    EER 12.9 13.8 13.6 31.0 27.3 26.4

    Q 249 467 494 328 580 615

    GSD80421VW P 19.0 32.7 34.7 10.3 20.1 21.5 EER 13.1 14.3 14.2 31.7 28.8 28.5

    Q 286 534 562 380 668 706

    GSD80485VW P 21.3 37.3 39.4 11.6 23.0 24.6 EER 13.4 14.3 14.3 32.7 29.0 28.7

    Cooling capacity Power consumption Energy Efficiency Ratio EERQo Pe [kBTU] [kW]

    ORBIT 8 optimized for air-cooled systems and reversible chillers

    ORBIT 8 Boreal optimized for systems with low condensing temperature

    Tentative data

    Running-in period 72 hours. Power consumption at motor terminals; power consumption at inverter intake depends on

    the individually applied inverter model.

    Performance data at 65 Hz.

  • 6 ESP-133-1

    Technical data

    Compressortype

    Displace-ment with 35 .. (65) 75 Hz

    Speed range Oilcharge

    fl.oz

    Weight

    lbs

    DLDischarge

    line

    inch

    SLSuction

    line

    inch

    DLDischarge line

    inch

    SLSuction line

    inch

    Motor connec-tion

    Rated load Amps(RLA)

    Amp.

    StartingcurrentLRA(Amp.)

    Amp.

    GSD80182VA(B/R)2 12 .. 26 35 .. 75 HZ 179 320 1 3/8 1 5/8 1 3/4 12 UNF 2 1/4 12 UNF

    208.

    .230

    V/3

    /60

    Hz

    200

    V/3

    /50

    Hz

    57.6 342

    GSD80235VA(B/R)2 16 .. 34 35 .. 75 HZ 179 326 1 3/8 1 5/8 1 3/4 12 UNF 2 1/4 12 UNF 71.0 385

    GSD80295VA(B/R)2 20 .. 43 35 .. 75 HZ 179 333 1 3/8 1 5/8 1 3/4 12 UNF 2 1/4 12 UNF 85.1 436

    GSD80385VA(B/R)2 26 .. 55 35 .. 75 HZ 179 337 1 3/8 1 5/8 1 3/4 12 UNF 2 1/4 12 UNF 106.2 578

    GSD80421VA(B/R)2 28 .. 52 35 .. 65 HZ 179 336 1 3/8 1 5/8 1 3/4 12 UNF 2 1/4 12 UNF 102.8 635

    GSD80485VA(B/R)2 32 .. 60 35 .. 65 HZ 179 372 1 3/8 1 5/8 1 3/4 12 UNF 2 1/4 12 UNF 128.2 602

    GSD80235VW(B/R)2 16 .. 34 35 .. 75 HZ 179 326 1 3/8 1 5/8 1 3/4 12 UNF 2 1/4 12 UNF

    208.

    .230

    V/3

    /60

    Hz

    200

    V/3

    /50

    Hz

    68.8 358

    GSD80295VW(B/R)2 20 .. 43 35 .. 75 HZ 179 333 1 3/8 1 5/8 1 3/4 12 UNF 2 1/4 12 UNF 79.4 418

    GSD80385VW(B/R)2 26 .. 55 35 .. 75 HZ 179 337 1 3/8 1 5/8 1 3/4 12 UNF 2 1/4 12 UNF 109.6 477

    GSD80421VW(B/R)2 28 .. 52 35 .. 65 HZ 179 336 1 3/8 1 5/8 1 3/4 12 UNF 2 1/4 12 UNF 106.7 582

    GSD80485VW(B/R)2 32 .. 60 35 .. 65 HZ 179 338 1 3/8 1 5/8 1 3/4 12 UNF 2 1/4 12 UNF 111.0 578

    Connection thread Version R

    Pipe connections ODS Version B

    Electrical data

    ORBIT 8 optimized for air-cooled systems and reversible chillers

    ORBIT 8 Boreal optimized for systems with low condensing temperature

    For FI operation special voltage motor 2 is required. Other voltages and electrical supplies upon request.

    Charged with polyvinyl ether BVC32.

    Weight without shut-off valves.

    B = Direct brazing connections, R = Rotalock connections.

    For the selection of contactors, cables and fuses the rated load amps (RLA) and the max. power consumption must be considered (Electrical data). RLA (MCC/1.56).

    Data for direct start. With VSD stepless rise of current up to actual load amps maximum up to rated load amps (RLA).

    GSD80182V .. GSD80485

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