BEST Software ONE SOFTWARE FOR ALL BITZER IQ DEVICES

Download Version 2.19

BEST APP iOS BEST APP Android

BITZER_BEST_Software_MASTER_EN_FIN_1080p (MP4, 437 MB)

Following products are supported

IQ MODULE CM-RC
(Operation, monitoring and protection device for reciprocating compressors)
IQ MODULE CM-SW-01
(Operation, monitoring and protection device for screw compressors)
VARIPACK
(External BITZER frequency inverters)
CSV
(Compact screw compressors with integrated frequency inverter)
ECOLITE
(Air cooled condensing units with VARISTEP capacity control)
ECOSTAR
(Air cooled condensing units with frequency inverter driven compressors)
SE-i1
(Monitoring and protection device for screw compressors)
VARISPEED
(Reciprocating compressors with integrated frequency inverter)

Languages

English
Chinese
Danish
Estonian
Finnish
French
German
Italiano
Japanese
Korean
Portuguese
Russian
Swedish
Spanish
Vietnamese

System requirements

PC with Windows 7 ≥SP1/8/8.1/10
Microsoft .NET-Framework 4.8 is required. In case an internet connection is available during installation, it is installed automatically. Otherwise it can be downloaded here
Depending from the device to connect to: USB port, Ethernet port or Bluetooth

Required additional hardware and connection possibilities

IQ MODULE CM-RC
- Bluetooth (Standard in the devices)
- or BEST converter

IQ MODULE CM-SW-01
- Bluetooth (Standard in the devices)
- or BEST converter

VARIPACK
- BEST converter
- or Ethernet cable (Only by FDU .. FKU models)

CSV
- Bluetooth (requires control board of the 2nd generation and firmware version 1.91 or newer)
- BEST converter
ECOLITE
- BEST converter and additional cable for the ECOLITE
  (part. no. of the cable 34411710)
ECOSTAR
- Bluetooth (Standard in LHV5E/LHV7E)
- or Mini USB cable
SE-i1
- BEST converter
VARISPEED
- BEST converter

The BEST converter can be ordered via BITZER part no. 34431402.

The license agreements can be found here

Relevant innovations in version 2.19 (July 2024)
- New for IQ MODULE CM-RC-02
  - Product support significantly further developed
  - Firmware version 2.0.12.0 integrated
  - CO2 compressor for transcritical operation 4DTE-30 added
  - New Marine version of the CO2 compressors added
    - For transcritical operation: 4MTEM-7 .. 6CTEM-50
    - For transcritical operation with innovative motor technology: 4MTEMU-7 .. 6CTEMU-50
    - For subcritical operation: 4FMEM-7 .. 4DMEM-10, 4TMEM-20 .. 4PMEM-25 and 6TMEM-50 .. 6PMEM-50
  - Refrigerant R471A added for the ECOLINE compressors 2KES-05 .. 6FEH-50 (comparable to R1234ze(E)/R515B)
- New for IQ MODULE CM-SW-01
  - Compressor HSK9593-240 with the refrigerants R134a, R450A, R513A and R1234yf added
- New for VARIPACK
  - CO2 compressors for transcritical operation
    - 8FTE 100, 8FTE 140, 8DTE 120, 8DTE 140 and 8CTE 140 with motor version 40D added
    - 4DTE-30 with motor versions 20D, 20P, 25P, 2NU, 35D, 40D, 40S, 40P, 45S, 4PU, 65S and 70S added
  - ME compressors (CO2 compressors for subcritical operation)
    - 8VME-100 .. 8PME-140 with motor version 40D added
    - 4TME-30, 6TME-50 and 6PME-50 with motor versions 20D, 20P, 40S and 40P added
    - Motor versions 40D, 45S and 4SU for the 2MME-07 .. 4DME-10 added
    - Motor versions 25P, 2NU, 35D, 40D, 45S, 4PU, 65S and 70S for the 4TME-20 .. 6PME-50 added
  - New Marine version of the CO2 compressors added
    - For transcritical operation: 4MTEM-7 .. 6CTEM-50
    - For transcritical operation with innovative motor technology: 4MTEMU-7 .. 6CTEMU-50
    - For subcritical operation: 4FMEM-7 .. 4DMEM-10, 4TMEM-20 .. 4PMEM-25 and 6TMEM-50 .. 6PMEM-50
  - CSHP compressors
    - Compact screw compressor CSHP95113-320 with motor versions 38D and 40D added
- New for SE-i1
  - CSHP compressors
    - New motor 2 compressor models CSHP8593-160, CSHP9553-160, CSHP9563-180, CSHP9573-210, CSHP9583-240 and CSHP9593-240 added
    - Refrigerant R600a added for the CSHP compressors with motor 2
    - Compressor CSHP95113-320 added with the refrigerant R600a only
    - CSHP7553-80 .. CSHP9593-320 with motor 1 and the refrigerant R290 added
  - CSH2T compressors
    - Refrigerant R1233zd(E) added for the compressors CSH2T9573-240 and CSH2T9583-280
- Bug fixes
  - By some PCs BEST suddenly closed when being connected to a device and viewing the operational graph
  - BEST files which were opened from a mail program, couldn´t be uploaded to the myBITZERcloud
Relevant innovations in version 2.18 (December 2023)
- New auto-updater
  - The new auto-updater feature informs about new versions of BEST by a tray icon and pop-up information. Thereby BEST must not be started anymore to check for new versions
  - In addition, BEST can be started via the tray icon and the release notes of BEST can be shown
- myBITZERcloud functionality extended
  - The new features require that the used myBITZER user has been registered for the BDN (BITZER DIGITAL NETWORK). When this is the case, the name of the company will be shown below the user when being logged into myBITZER with BEST
  - Automatic sorting of the uploaded files: BEST files from products which are registered in the BDN, will be sorted according the Site/Sub-Site/System/Equipment structure
  - Sharing within the company: BEST files from products which are registered in the BDN, can easily be shared with all users of the same company. There is also a checkbox available which allows to share newly uploaded files automatically within the company
- New diagram: Application Envelope Heatmap
  - Datalogs of compressors with application envelope protection do now also get visualized in the application envelope. The operating point as well as events like start, stop and alarms are shown
- Operational graph: Visualization of alarm durations and further improvements
- Modbus documentation extended and improved
- IQ MODULE CM-RC-02 integrated
- New for CSV
  - R515B released as standard refrigerant
  - Bug fix: BEST 2.17 didn´t show the version of the firmware in case of firmware version 1.75 or older. In that case, also an update of the firmware wasn´t possible
- New for VARIPACK
  - ORBIT PRO compressors GSP60120ZL .. GSP80485ZL with the standard motor version 4 added
  - Compact screw compressors CSW10563-210 .. CSW10593-400 with motor version 40D and 38D added
- Motor version 3PU added for the relevant compressors
- New for IQ MODULE CM-RC-01
  - 8-cylinder CO2 compressors 8DTE-120 and 8DTE-140 added
- New for IQ MODULE CM-SW-01
- New for ECOSTAR
  - Firmware version 5.1.1.0 integrated
- New for SE-i1
  - Firmware version 2.24.124.00 integrated
  - CSH2T compact screw compressors for high-temperature heat pump applications added. CSH2T9573-210 and CSH2T9583-240 for the refrigerant R1233zd(E) and CSH2T9573-240 and CSH2T9583-280 for the refrigerant R245fa
  - Refrigerant R245fa added for the CSH.3 compressors CSH7553-50 .. CSH951130-320 with motor version 2
  - Bug fix: The extended envelopes, introduced with BEST 2.12 SP1, were missing for the compressor model CSH8563-125Y
Relevant innovations in version 2.17 (December 2022)
- Like it is already by the CSV and VARIPACK of the 2nd generation, also for the CM-RC-01, CM-SW-01 as well as SE-i1 all released firmware versions are now included in BEST and easily selectable via a drop-down list
- New for VARIPACK of the 2nd generation
  - Semi-hermetic screw compressors of the HS.95 series, HSK9573-180 .. HSK95103-320, HSN9583-240 and HSN95103-280 added with the motor versions 35D, 38D, 40D and 65S
  - P-version of the 2-stage reciprocating compressors S4TP-5.2 .. S6FP-30.2 added
  - For ECOSTAR dedicated compressors 4DE-7.F .. 4NE-14.F added
  - Automatic pre-configuration of the for scroll and transcritical CO₂ compressors recommended hold frequency after start
- New for IQ MODULE CM-RC-01
  - Firmware version 2.23.287.00 integrated
  - 8-cylinder CO₂ compressors 8FTE-100, 8FTE-140 and 8CTE-140 added
  - ECOLINE 2 cylinder compressors 2KES-05 .. 2CES-4 and 2EESH-2 .. 2CESH-4 made available as standard
- New for IQ MODULE CM-SW-01
  - HS.95 compressors
    - Compressor HSK9593-300 as successor for the compressor HSK9593-280 added
  - OS compressors
    - The phase monitoring can be activated by the motor starter functions “Direct on Line (DOL)”, “Part Winding (PW)” and “Star Delta”
- New for ECOSTAR
  - Firmware version 5.1.0.0 integrated
Relevant innovations in version 2.16 SP1 (June 2022)
- Bug fixes
Relevant innovations in version 2.16 (May 2022)
- First version which officially supports Windows 11
- Datalog features
  - Livelogs: Alarms get shown on the Operational Graph when created with BEST version 2.16 or newer
  - Devicelogs: BEST activities like the time range BEST was connected, firmware updates as well as parameter changes are visualized on the Operational Graph when supported by the devicelog
- New for CSV
  - Firmware version 2.22 integrated
- New for VARIPACK of the 2nd generation
  - Firmware version 2.53 integrated
  - Refrigerants R469A and R473A added
- New for IQ MODULE CM-RC-01
  - Transcritical ECOLINE 4 cylinder compressors released for VARISTEP operation down to 10 % (before 25 %, only ECOLINE+ compressors were already released for 10 %)
  - OLM-IQ support for transcritical compressors added
- New for IQ MODULE CM-SW-01
  - CSW105 compressors
    - Compressors CSW10563-210, CSW10563-240, CSW10573-240 and CSW10573-290 with the refrigerants R134a, R450A, R513A. R1234yf, R1234ze and R515B added
  - HS.95 compressors
    - Compressor HSK9573-180 and HSK9583-210 with the refrigerants R134a, R450C, R513A and R1234yf added
    - Compressor HSK9573-240 and HSK9583-280 with the refrigerants R22, R134a, R404A, R407A, R407F, R448A, R449A, R450A, R454C, R507A, R513A and R1234yf added
    - Compressor HSN9583-240 with the refrigerants R22, R404A, R407A, R407F, R448A, R449A, R454C and R507A added
- Bug fix
  - VARIPACK 2nd generation: The bubble line data instead of dew line data were transferred for zeotropic refrigerants (R4…) with the previous BEST versions
Relevant innovations in version 2.15 SP1 (November 2021)
- Bug fixes
  - SE-i1: For some compressors, some refrigerants were not selectable for newer compressor serial numbers
  - VARIPACK 2nd generation: The scaling of the parameter “Hold time on hold frequency” was wrong about factor 10. A configured value of e.g. 10 s was shown as 100 s
Relevant innovations in version 2.15 (November 2021)
- New language: Vietnamese
- Documentation tab
  - Modbus documentation is now available in German language
  - Maintenance Instructions
    - The for the specific product relevant maintenance instructions have been implemented in BEST
    - They can be shown online as well as downloaded for offline availability. This is specifically from advantage, when no internet connection is available on side
- New for CSV
  - Firmware version 2.21 integrated
  - Compressor types CSV.24-125MY-40M and CSV.25-160MY-40M with permanent magnet motor added
- New for VARIPACK
  - Open type reciprocating as well as screw compressors added for the VARIPACK of the 2nd generation. The motor data can be configured individually
  - Added the motor versions 2DU, 4SU, 40D and 45S for the transcritical ECOLINE compressor 2MTE-4 .. 2KTE-7 and 2NU, 4PU, 20D, 20P, 25P, 35D, 40D, 40S, 45S for the compressors 4JTE-10 .. 4CTE-30. For the 6FTE-35 .. 6CTE-50 the motor version 35D has been added
- New for ECOSTAR
  - Firmware version 5.0.3.0 integrated
- New for IQ MODULE CM-RC-01
  - Refrigerants R407H and R452A added for the ECOLINE compressors
  - Refrigerants R134a, R245fa, R404A, R407C, R407F, R407H, R448A, R449A, R454C, R455A, R513A, R1234ze(E), R515B (for motor version 2) and R1234yf added for the ECOLINE H-Series compressor
- New for IQ MODULE CM-SW-01
  - Firmware version 2.20.103.00 integrated
  - CSW105 compressors
    - Application envelopes for all refrigerants extended. For details see the firmware release notes 2.20.103.00
    - CSW105 compressors released for the refrigerant R450A and R515B
  - HS.95 compressors
    - Refrigerant R454C released for the HSN95103-280 and HSK9593-280
  - OS compressors
    - Application envelope of the OSKA95 compressors essentially extended, allowing to apply it as a booster compressor. Additionally, a further extended envelope has been added for applications with oil pump. For details see the firmware release notes 2.20.103.00
    - OSKAB85 Booster compressors added with application envelopes for the operation with and without oil pump. For details see the firmware release notes 2.20.103.00
- New for SE-i1
  - CSHP compressor series CSHP6553-50 .. CSHP9593-300 with the refrigerant R290 added
  - HSNP compressors HSNP7451-60 .. HSNP8591-160 with the refrigerant R1270 added
Relevant innovations in version 2.14 SP2 (July 2021)
- Bug fix of version 2.14 SP1
  - The configuration of the refrigerant didn´t properly work for the devices CM-RC-01, CM-SW-01 and SE-i1
Relevant innovations in version 2.14 SP1 (July 2021)
- Bug fixes of version 2.14
  - When trying to overwrite an existing BEST file, the BEST file wasn´t saved
  - VARIPACK IP55/66: Default settings were partly missing
  - VARIPACK IP20; FDU .. FKU: Operating hours were shown in seconds instead of hours, unit of the ramp-up and ramp-down time were missing
Relevant innovations in version 2.13 SP1 (January 2021)
- Bug fix: Correction of the compressor serial number dependant parameter handling of the CM-SW-01 and SE-i1 in conjunction with compressors produced from January 2021 on
Relevant innovations in version 2.13 (December 2020)
- Transfer while running: Several parameters can now be changed while the compressor is running
- Documentation tab
  - Modbus toggle descriptions added
  - Alarms and Modbus Data can now be exported as PDF and CSV
- New for CSV
  - The last 10 faults including their time stamp as well as number of occurrences are now directly visible without requiring to download and decode the datalog
  - Service pack firmware version 1.56 integrated for the CSVW26-200MY field test compressors
- New for VARIPACK
  - Refrigerant R515B added
  - ECOLINE CO₂ compressors 4FME-7, 4EME-9, 4DME-10, 4TME-20 and 4PME-25 added with the motors 40S, 20D. For the 4TME-20 and 4PME-25 additionally their standard motor 40P as well as 20P is selectable
  - Motor versions 40S and 20P added for the ECOLINE CO₂ compressors 6TME-35 and 6PME-40
  - ECOLINE H-Series compressors 2CESH-3 .. 6FEH-50 added
  - Compact screw compressors CSH7673-70 .. CSH96113-320 (CSH.6) added with the different motor versions available
  - Motor versions 20P, 38P and 45P added for the relevant compressors of the CSH.5 and CSW compressor series
- New for ECOLITE
  - Support for the 2nd generation of ECOLITE added
- New for IQ MODULE CM-RC-01
  - New firmware version 2.10.272.00 integrated
  - Soft starter is now selectable as “Motor starter function” (supported from firmware version 2.5.249.00 on)
  - Subcritical ECOLINE compressors 4FME-7, 4EME-9, 4DME-10, 4TME-20 and 4PME-25 added in Standard and Marine version
  - Marine version of the Transcritical ECOLINE compressors 4PTE-6 .. 4CTE-30 as well as ECOLINE+ compressors 4PTEU-6L .. 4CTE-30L added
  - ECOLINE H-Series compressors introduced for the refrigerant R1234ze(E) in motor version 1 area replacing the standard ECOLINE series
  - Refrigerant R515B released for the standard ECOLINE compressors with motor version 2 and the ECOLINE H-Series for motor version 1
- New for IQ MODULE CM-SW-01
  - CSW105 compressors
    - Compressors CSW10583-290 and CSW10583-360 added
    - Application envelopes for the compressor CSW10593-400 and the refrigerants R134a, R513A and R1234yf extended in the direction of lower evaporating temperatures
    - CSW105 compressors released for the refrigerant R1234ze(E)
  - HS.95 compressors
    - Application envelopes for the HS.95 compressors with serial number > 1099000000 and the refrigerants R22, R404A, R448A, R449A, R507A extended in the direction of higher condensing temperatures
- New for SE-i1
  - CSH.5 compressors released for the refrigerant R515B
Relevant innovations in version 2.12 SP1 (July 2020)
- New for VARISPEED
  - Compressors 4PTE-7.F3K, 4MTE-7.F4K and 4KTE-10.F4K added
- New for CSV
  - Firmware version 2.13 integrated
  - The CSVH38-290Y and CSVW38-290Y field test compressors are now also supported by the firmware updater
- New for VARIPACK
  - Firmware version 1.26 integrated
- New for ECOSTAR
  - LHV5E/7E: Firmware version 5.0.2.0 integrated
- New for CM-RC-01
  - ECOLINE CO₂ compressors 6TME-35 and 6PME-40 added
  - Refrigerants R454C and R455A released for the ECOLINE compressors
  - 4FES 3 .. 8FE 70 and 4VE 6 .. 4NE 20
- New for IQ MODULE CM-SW-01
  - Firmware version 2.9.92.00 integrated
  - OS.A95 compressors
    - Compressors OSKA9573-K and OSKA9583-K added
    - Application envelopes for the compressors with serial number > XXX1098800000 extended in the right lower edge
  - HS.95 compressors
    - Compressor HSK9593-280 added
    - HSK.95 compressors released for the refrigerants R407A, R407F, R448A, R449A and R507A
- New for SE-i1
  - Application envelopes for CSH.5 compressors with serial number > 1098800000 XXX extended according the leaflet SP-170-7
Relevant innovations in version 2.12 (February 2020)
- Overworked Modbus Documentation
- Extended time duration for Livelogs
- New for CSV
  - Firmware version 2.00 integrated
  - Besides updating to the latest firmware version, it is now also possible to update or downgrade to older firmware versions
- New for VARIPACK
  - Firmware version 1.21 integrated
  - In conjunction with firmware version 1.21 or newer, a full reset to defaults can now be carried out via BEST
  - Compressors 6TME-35 and 6PME-40 added with the standard motor 40P
  - Compact screw compressors added:
    - CSH6553-35 .. CSH95113-320
    - CSW6583-40 .. CSW95113-320
    - CSHP6553-50 .. CSHP95103-320
- New for IQ MODULE CM-RC-01
  - Firmware version 2.9.258.00 integrated
- New for IQ MODULE CM-SW-01
  - Firmware version 2.9.89.00 integrated
  - Refrigerant R507A released for the HS.95 compressors
- New for SE-i1
  - Firmware version 2.4.117.00 integrated
Relevant innovations in version 2.11 SP2 (December 2019)
- New for VARISPEED
  - LFC-210 frequency inverter integrated as successor for the F1 frequency inverter types 176L80XX
- New for CSV
  - Firmware version 1.92 integrated
- New for IQ MODULE CM-SW-01
  - Compressors OSKA9573-K and OSKA9583-K added
Relevant innovations in version 2.11 (July 2019)
- Alarm documentation extended about the Alarm reset types
- Remember the myBITZER login
- New for VARIPACK
  - Compressor 4KTE-12 added
  - Motor versions 45S(Y), 40D(D), 20D(Y), 20D(D), 4SU(Y) and 2NU added for the compressors 4PTE-6 .. 4KTE-12
  - ORBIT scroll compressors for A2L refrigerants with motor version 4 added
    - ORBIT: GSD60120VL .. GSD80485VL (except GSD80235VL)
    - ORBIT+: GSU60120VL .. GSU80421VL
    - ORBIT Fit: GED60120VL .. GED80385VL
  - Max. frequency for the compressors HSK7451-50 .. HSK8591-110 and HSN7451-60 .. HSN8591-160 extended from 67 to 75 Hz
- New for ECOSTAR
  - All: Firmware updates can now also be carried out via Ethernet as faster and more reliable solution compared to the USB stick
- New for IQ MODULE CM-RC-01
  - Compressor 4KTE-12 added
  - “.2 Generation” compressors (4FC-3.2 .. 8FC-70.2) added with the refrigerants R22, R404A, R507A, R134a, R407A and R407C to support the requests for system upgrades with IQ MODULEs and VARISTEP
- New for IQ MODULE CM-SW-01
  - Firmware version 2.8.821.0 integrated
  - Compressor HSK95103-320 added with the refrigerants R22 and R404A
  - Compressor HSN95103-280 added with the refrigerant R404A
- New for SE-i1
  - CSH.6 compressors CSH7673-70 .. CSH96113-320 added for the refrigerants R134a, R450A, R513A, R1234yf and R1234ze
  - Max. frequency for the compressors HSK7451-50 .. HSK8591-110 and HSN7451-60 .. HSN8591-160 extended from 67 to 75 Hz
Relevant innovations in version 2.10 (October 2018)
- Integration of the myBITZERcloud for saving and sharing the BEST files
- ECOLITE condensing units integrated
- Dialogue for changing passwords integrated for a further increase of the security, especially for the Bluetooth communication
- New language: Japanese
- New for VARIPACK
  - ECOLINE CO2 compressors 4PTE-6 .. 4CTE-30 and ECOLINE+ CO2 compressors 4JTEU-10L .. 4CTEU-30L added with the standard motor
- New for IQ MODULE CM-RC-01
  - ECOLINE CO2 compressors 4JTE-10 .. 4CTE-30 and ECOLINE+ CO2 compressors 4JTEU-10L .. 4CTEU-30L added
- New for IQ MODUL CM-SW-01
  - Compressor HSK95103-320 added
Relevant innovations in version 2.9.312 (September 2018)
- New for IQ module CM-RC-01
  - Firmware version 2.5.249.00 integrated
  - Overworked Refrigerant data
Relevant innovations in version 2.9
- New tab: Documentation
  - List of available alarms moved into the Documentation tab
  - Full documentation for Modbus RTU added
  - History of firmware release notes
- New language: Korean
- New for CSV
  - Firmware version 1.75 integrated
  - CSV compressors as one product: No specific compressor selection required anymore for creating a new project
  - New firmware updater: Frequency inverter can easily be (re)configured for another refrigerant or other compressor types
  - Alarm help texts essentially extended
- New for VARIPACK
  - Firmware version 1.17 integrated
  - ORBIT+ compressors GSU60120VA .. GSU60235VA and GSU80295VA .. GSU80485VA added
  - ORBIT FIT compressors GED60120VA .. GED60235VA and GED80295VA .. GED80485VA added
  - Compressor HSN8561-110 added
  - Refrigerants R407H, R449B, R452A, R454A and R454C added
  - Alarm help texts added
- New for ECOSTAR
  - Support for the former types LHV6 added
- New for IQ MODULE CM-RC-01
  - Firmware version 2.5.246.00 integrated
  - ECOLINE+ compressors 4PTE-6 .. 4KTE-10 and 6FTE-35 .. 6CTE-50 added
  - Alarm help texts added
- New for IQ MODULE CM-SW-01
  - Compressors OSKA8551 .. OSKA8591, OSNA8571 and OSNA8591 added
  - Alarm help texts added
- New for SE-i1
  - Compressor HSN8561-110 added
  - Alarm help texts added
Relevant innovations in version 2.8 (SP2)
- New for VARIPACK
  - ECOLINE+ compressors 4PTEU-6L .. 4KTEU-10L and 4JTC-10L .. 4JTC-15L added
  - Compressors with LSPM motor released for operation in Delta (40S-D)
- New for ECOSTAR
  - Firmware version 4.4.1.0 integrated
- New for CM-RC-01
  - Firmware version 2.3.243.00 integrated
  - Compressors 4FES-3 .. 4BES-9 added
  - ECOLINE+ compressors 4PTEU-6L .. 4KTEU-10L added
- New for CM-SW-01
  - Slider coefficients optimized with respect to higher efficiency for the compressors OSKA9593, OSKA95103 and CSW10593
Relevant innovations in version 2.8 (SP1)
- New for CM-SW-01
  - Compressor CSW10593-400 and OSKA9593-K added
  - Control of the oil injection valve (terminal strip CN4) for OS.95 compressors activated
  - Firmware version 2.6.58.00 integrated
- New for SE-i1
  - Firmware version 2.0.101.00 integrated
Relevant innovations in version 2.8
- Extended datalog features for devicelogs
  - Visualization of the Counters and Statistics
  - Tabular listing of the alarms
- New languages
  - Danish
  - Estonian
  - Swedish
- New for CSV
  - New diagnostic parameters on the tab „Monitoring“
- New for VARIPACK
  - Search function for the compressor selection
  - ECOLINE+ compressors 4HTC-15L .. 4CTC-30L and 6FTEU-35L .. 6CTEU-50L added
  - Refrigerants R452B and R454B added
  - Frequency ranges of the CO₂ compressors extended
  - Frequency ranges of the GSD6 compressors extended
- New for IQ MODULE CM-RC-01
  - ECOLINE+ compressors 6FTEU-35L .. 6CTEU-50L added
  - Application envelopes for R407A, R407F, R448A and R449A extended
Relevant innovations in version 2.7
- Graphical visualization of the current operating conditions or the Livelog respectively for all devices
- Graphical visualization of the datalogs downloaded from the devices
- Selectable if SI or IP dimensional units are used (°C, bar or °F, psi)
- Selectable if the pressure values are shown in Gauge or Absolut
- New languages
  - Chinese
    Finnish
- New for CSV
  - Firmware version 1.73 integrated
  - Compressors can be reconfigured for the refrigerants R513A and R1234yf. This requires the firmware version to be ≥ 1.73
  - Compressors CSVH26-200MY-40M, CSVW37-240Y-40A and CSVW38-290Y-40A added
- New for VARIPACK
  - Refrigerant R455A added
- New for ECOSTAR
  - Alarm help texts completely revised
- New for CM-RC-01
  - Refrigerant R1234yf for ECOLINE 2-, 4-, 6- and 8-cylinder compressors added
  - Refrigerant R1234ze for ECOLINE 2-, 4-, and 6-cylinder compressors added
  - Firmware version 2.1.234.20 integrated (Firmware version of the serial release of the CM-RC-01)
- New for SE-i1
  - Refrigerants R450A, R513A, R1234yf and R1234ze for CS.3 compressors added
  - Firmware version 1.5.89.00 integrated (Firmware version of the serial release of the SE-i1)
Relevant innovations in version 2.6
- VARIPACK frequency inverters integrated
- CM-SW-01 Protection, monitoring and control device integrated
- Datalog features
  - Datalog management: Datalogs can be stored in the BEST file (.bpd) together with the parameter setting
  - Live logging: When connected to a device, all operating conditions are automatically logged and will be saved when saving the BEST file
  - Export to Excel: Datalog files can be exported to Excel (.csv)
- Alarm help texts now also accessible offline
- New languages
  - French
  - Italian
  - Portuguese
  - Russian
- New for CSV
  - Compressor CSVH37-240Y-40A added
- New for ECOSTAR
  - Week program: For each day of the week several different temperature setpoints as well as fan modes can be configured
- New for CM-RC-01 and CM-SW-01
  - Bluetooth support
- Info: This is the last version of BEST supporting Windows XP
Relevant innovations in version 2.5
- Compatible to Windows 10
- New for CSV
  - Firmware version 1.65 integrated
- New for ECOSTAR
  - Selftest function can now also be controlled via BEST
  - Support of the new ECOSTAR LHV5E
  - Firmware version 4.3 integrated
- New for SE-i1
  - Support of the upcoming firmware version
  - Compressors HS53 .. HS85 added (only applicable with firmware version ≥ 1.0)
  - Refrigerants R448A, R449A, R450A, R513A, R1234ze, R1234yf added (only applicable with firmware versions ≥ 1.0; released Compressor-Refrigerant-Combinations are configurable, other combinations on request)
- New for CM-RC-01
  - Support of the upcoming firmware version
Relevant innovations in version 2.4
- Auto update feature
- CM-RC-01 Protection, monitoring and control device integrated
- New for CSV
  - Compressor CSVH38-290Y added
- New for ECOSTAR
  - Connecting via Bluetooth
  - Downloading datalogs
  - Selftest feature
  - Firmware updater integrated
  - Firmware version 4.1.1.0 integrated
  - Base support for ECOSTAR network mode
Relevant innovations in version 2.3
- ECOSTAR condensing units integrated (LHV5E and LHV7E)
- New for CSV
  - Firmware version 1.51 integrated
  - Compressor CSVW26-200MY-40M added
- New for VARISPEED
  - F1: Warning in case the compressors has been disabled by the hand-held device
Relevant innovations in version 2.2
- Completely reworked and with a new design
- CSV compressor series integrated
- SE-i1 protection and monitoring device integrated
- BEST files (.bpd) can now be opened from the explorer too
- New for VARISPEED
  - -New compressors added: 4FE-5.F1Y, 4EE-6.F1Y, 4DE-5.F1Y, 4DE-7.F3Y, 4CE-6.F1Y, 4CE-9.F3Y, 4VE-7.F3Y, 4VE 10.F4Y, 4TE-9.F3Y, 4TE-12.F4Y, 4PE-12.F3Y, 4PE-15.F4Y, 4NE-14.F3Y, 4NE-20.F4Y
  - F3/F4: Possibility for configuring the net supply voltage added
Relevant innovations in version 2.14 (June 2021)
- New language: Spanish
- New for VARIPACK
  - Support for the VARIPACK IP55/66 added
  - Subcritical CO₂ compressor 2LSL-1 added
  - Subcritical ECOLINE compressors 4FME-9 and 4EME-10 added
  - ORBIT FIT compressors GED80421 and GED80485 added
  - Motor version 3 added for the ORBIT FIT compressors GED80295 .. GED80485
- New for CM-RC-01
  - Firmware version 2.20.282.00 integrated
  - Subcritical ECOLINE compressors 4FME-9, 4EME-10, 4TME-30 and 6TME-50 added. The 4FME-9, 4EME-10 and 4TME-30 are available in Standard and Marine version
- New for CM-SW-01
  - Started to add the compressor serial number dependent slider end points of all the compressors produced until the build date of BEST. This allows to configure new CM-SW-01 modules for a specific compressor without needing to request the slider end points from BITZER
  - Refrigerant R454C released for the HSK95103-320
- New for SE-i1
  - Firmware version 2.20.119.00 integrated
  - CSW motor version 4 compressors CSW8573-80 .. CSW95103-210
  - Refrigerant R454C released for the HS compressors

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