Release: New Optyma™ iCO2 37kW MT – 19kW LT condensing unit
Future-proof your business and stay ahead of F-gas regulations with the extra new Danfoss Optyma™ iCO₂ condensing unit 114x6005. This innovative solution utilizes natural, non-toxic, and ultra-low GWP refrigerant CO₂ (R744), offering a long-term, sustainable alternative to refrigerants affected by quota reductions and price increases. This as extension 114x6003 (20kW MT – 10kW LT) and 114x6001 (4.6kW MT).
The new Optyma™ iCO₂ OP-UPAC030COP04E delivers powerful and efficient cooling with a high capacity (up to 37kW for medium temperature and 19kW for low temperature applications), all while maintaining low noise levels.
We've designed it for easy installation, ensuring seamless integration with your current work practices. Choose a reliable, connectable, and sustainable refrigeration system without compromising on performance.
- Optyma™ iCO₂ ordering code: 114X6005
- OP-UPAC030COP04E
- Capacity: 37kW (medium temp) / 19kW (low temp)
- In stock from the end of April 2026.
Features & benefits
- Flexible operation for multiple applications: Features two independent compressors (a 2-stage rotary and a scroll) for reliable performance in both medium and low-temperature applications, adapting seamlessly to changing cooling demands (variable load from 18% - 100%).
- Scalable system connectivity: Connect up to 24 display cabinets or evaporators using Danfoss AKV electronic expansion valves. Fully compatible with Adap-KOOL® platforms, this unit supports highly scalable system designs.
- Advanced oil and system management: Intelligent control is enabled via the Danfoss Module Controller 118U5498 (Modbus) or 118U5534 (Ethernet) and AK-CC55 Single Evaporator Controller (084B4082 or 084B4083), ensuring optimized performance and providing peace of mind.
- Efficient and quiet operation: Coated fin-and-tube gas coolers with copper tubes and variable-speed fans provide efficient operation while maintaining low noise levels, even under external static pressure up to 50Pa.
- Stable and hassle-free system operation: A generously sized 11-liter suction accumulator and 18.7-liter receiver ensure smooth, reliable operation across a wide range of applications and load conditions.
- Installation-friendly low noise: Engineered for quiet performance with sound levels as low as 42 dB(A) at 10m, making it ideal for installation in noise-sensitive locations.
- Installation flexibility: Offers greater freedom in system layout with support for up to 100m of equivalent pipe length (Ø 12.7mm).
- High reliability and compressor protection: Integrated oil separators and an effective oil return management system enhance long-term compressor protection and overall system reliability.
- Wide operating envelope: Ensures reliable, year-round performance in ambient temperatures ranging from -20°C to +43°C.
- Certified safety and compliance: The unit is PED Category III and has been factory-approved by a notified body, ensuring full compliance with European pressure equipment regulations.
Available documents and tools: OP-UPAC030COP04E 37kW MT – 19kW LT:
- Product release on Coolselector
- Product release on Ref Tools app
- Danfoss Product Store
- Dedicated Danfoss landing page
- Quick start manual
- Application guidelines
- Module controller guidelines (revision will happen by week 17)
- Instruction manual
- Commercial brochure (UK only)
- Manufacturer’s declaration (UK only)
- Module controller Manufacturer declaration for EU (UK only)
- Declaration of conformity for UK (UK only)
See further details and technical documentation on Coolselector and Danfoss store.
Release: Launch of GBC M ball valves & MQT actuators
We are pleased to announce the launch of our motorized ball valve solution, featuring the GBC M valve series and MQT actuators. The GBC M is a ball valve series equipped with an ISO5211 mounting flange, while the MQT is a quarter-turn actuator series featuring the same standardized flange interface. This solution provides customers with precise electronic control for opening or shutting off refrigerant flow according to system requirements.
The range fills the need for applications such as heat pump when using A2L or A3 refrigerants, to enhance the safety measures to mitigate the risk of flammability. It consists of:
- 7 models of GBC M ball valves, sizes 6 to 16s with or without access port, connection ¼ into ⅝ in.
- 4 models of MQT 10 Nm actuators, with or without fail safe mode and with 24V AC/DC or 95/265V.
All together, they offer high efficiency and safety with a strong, reliable design and high versatility of use.
Read more and access materials:
Release: Release of VZN series use with R513A
Danfoss variable speed compressor VZN086/104/140/175 has released new models which can be used with multi refrigerant R290 and R513A.
R513A is an HFO/HFC Blend, with similar thermodynamic properties to the R134a. It is an Azeotrope refrigerant with a negligible glide. R513A has zero ozone depletion potential (ODP=0) and a Global Warming Potential (AR5) at 631.
Operating envelope
Minimum suction superheat (R513A)
If R513A sample is needed, customer could order by below temporary sales codes.
Single pack
Industrial pack
Above temporary sales codes have been released in February 2026, they will be replaced by new sales codes with R290/R513A/R454C in Q3 2026. VZN application guideline AB478735922007en has been updated with R513A technical information.
Updated application guidance: Optyma™ iCO₂ condensing unit
Optimizing performance
As part of our commitment to continuous product improvement, we are providing updated guidance on the ideal applications for our best-in-class Optyma™ iCO2 condensing unit. To ensure optimal performance and reliability, we have released a new application guidelines that clarify the unit's capabilities and intended scope of use. This information will help ensure a clear understanding of its behavior.
Engineered for Commercial Refrigeration
The Optyma™ iCO2 condensing unit is specifically designed and engineered for standard commercial refrigeration systems. It delivers exceptional efficiency and reliability for applications such as walk-in cold rooms, display cabinets, and other environments that operate consistently within a typical refrigeration temperature range.
Guidance on specialized applications
To ensure the longevity of the equipment and successful operation, it is important to note the applications for which the iCO2 condensing unit is not suitable:
- High-precision temperature control: The unit is not designed for applications requiring exceptionally tight temperature tolerances, such as the +/- 2K required for blood storage or sensitive laboratory environments. For these needs, we recommend evaluating more specialized systems like heat pumps or chillers.
- Environments with external heating cycles: The condensing unit should not be used in systems where the cold room or chamber is periodically warmed to high temperatures (e.g., 20°C or 35°C), such as in some fermentation or pharmaceutical testing processes. Exposing the unit to heat from the refrigerated space can cause repeated cycling and lead to premature failure.
Continuous improvement: enhanced software
Since the product launch, we have gathered valuable field data. In response to certain restarting issues observed under high ambient temperatures with low load, we released a software update (version 002) in 2023. This new thermostat strategy improves performance and reliability by optimizing compressor speed and high-pressure valve control during restarts.
Our commitment
Our goal is to ensure you get the best performance and lifespan from your Danfoss products. The Optyma™ iCO2 condensing unit is the right choice for standard commercial refrigeration. For applications outside this scope, our team is ready to help you find the perfect Danfoss solution for your needs.
Optimization hydrocarbon (HC) and low GWP (LG) compressors
Description
Continuous product development and new market requirements in response to ongoing product development and evolving market demands, such as applications for heat pumps, we are pleased to announce several enhancements to our hydrocarbon (HC) and low GWP (LG) compressors. These improvements have undergone internal validation, resulting in increased robustness.
1. Optimized bearing shell material for connecting rods
Affected products:
- (EX-)HG44e HC, (EX-)HG56e HC, (EX-)HG66e HC, (EX-)HG88e HC
- HAX44e LG, HGX44e LG, HGX56e LG, HGX66e LG, HGX88e LG
We are introducing new, advanced bearing shell material in the connecting rods. This material offers enhanced resistance to stress, thereby improving durability under demanding operating conditions. The bearing shell and conrods are completely interchangeable.
2. Introduction of a new refrigerant oil (Shrieve RFL-68 EP)
Affected products:
- All hydrocarbon compressors. [(EX-)HG12e HC – (EX-)HG88e HC]
The use of Shrieve RFL-68 EP refrigerant oil specifically enhances the tribological properties within the compressor. This leads to optimized lubrication, reduced wear, and overall increased operational safety, particularly under challenging operating and start-up conditions.
The Shrieve RFL-68 EP is fully compatible and mixable with the previous Bocklub G68 oil. However, it is recommended to avoid mixing the oils to ensure optimal performance. During service and compressor replacement, the amount of residual old oil in the system must be kept to a minimum. This includes removing all oil from other components, such as oil separators. If necessary, perform an additional oil change to ensure optimal system performance.
3. Stronger oil sump heater (220W)
Affected products:
- HG44e HC, HG56e HC, HG66e HC
To provide maximum flexibility, three different oil sump heaters are now available.
To further improve start-up conditions, especially at low ambient temperatures, a more powerful oil sump heater with 220W is now available. This heater is offered as an option for new compressors and as a retrofit kit for existing installations. The improved heating supports the enhanced evaporation of refrigerant dissolved in the oil, contributing to a more stable and gentler compressor start.
As in the past, the 160W version remains available. In addition, a self-regulated oil sump heater (50–120W) is offered. This option is intended exclusively for indoor installations.
A minimum oil temperature of +30°C is mandatory to be ensured before compressor start-up. For external monitoring of the oil temperature both prior to start up and during operation a Pt1000 oil temperature sensor is available as accessories.
Spare part numbers oil sump heater:
4. 7/16” Schrader at the oil pump for all HC compressors
Affected products:
- All hydrocarbon compressors. [(EX-)HG12e HC – (EX-)HG88e HC]
To enable easier and more accurate monitoring of the oil differential pressure, all hydrocarbon compressors are equipped with a 7/16" Schrader valve at the oil pump.
All these optimizations contribute to a further increase in compressor reliability.
Implementation
All optimizations will be implemented in the compressors ordered from calendar week 14/2026 onwards with new G Codes. Current orders scheduled for production from calendar week 14 will be updated accordingly. Please coordinate any new orders with the relevant Danfoss sales representative.
A new design key for compressors is being introduced to indicate the change. Compressors are assigned design key 087. The design key can be found on the compressor's nameplate (the least 3 characters of the machine number (No.)).
General guidelines for hydrocarbons and low GWP refrigerants are attached to this information
and soon available on DAM Hub and BOCK VAP.
Important software update 1.29 for EKF Stepper Motor Valve Driver
We are pleased to inform you about an upcoming software update for the EKF stepper motor valve drivers. This update will transition the software from version 1.28 to version 1.29, bringing several enhancements to improve your experience and operational capabilities.
Key updates
- Improved valve selection:
The update includes the addition of PTS valves with enhanced settings, selectable via a dip switch. - Enhanced performance:
Modifications to the PPS for ETS 8M bipolar from 16 PPS to 45 PPS and adjustments to ETS 8M Unipolar PPS from 31 PPS to 45 PPS.
Affected products
- EKF1A stepper valve driver (080G5030)
- EKF2A stepper valve driver (080G5035, 080G5036)
Customer actions required
To ensure compatibility with the updated software version 1.29, customers utilizing the KoolProg PC tool must download and use the latest version 5.6. Additionally, for those employing offline files, it is necessary to create a new file specifically for version 1.29 within KoolProg. The update enhances user experience by enabling customers to select newly added valves via the dip switch, thereby improving ease of use and expanding operational capabilities. You can utilize the auto-convert feature in KoolProg to seamlessly convert older files to this latest version, ensuring compatibility and optimal performance.
Availability
The new software version 1.29 is now available in our Central Distribution Center (CDC).
New Superheat Controller Kit EKE 100 1VK
We are excited to announce the launch of our new superheat controller kit EKE 100 1VK, designed to bring convenience and efficiency to your cold room applications. This innovative solution simplifies the ordering and stocking processes, improves installation ease, and ensures fast and reliable performance.
The superheat controller kit includes the following components:
- EKE 100 1V Superheat controller & valve driver with integrated display
- DST P110 Pressure transmitter and cable
- AKS 11 Temperature sensor
- Bipolar coil for ETS 5M
Customers can also purchase an ETS 5M valve to complement the kit, depending on capacity needs. This comprehensive package is ideal for applications in air conditioning, commercial refrigeration, and food retail, providing precise superheat control and effectively regulating superheat to the lowest possible level in a short timeframe.
Benefits
- Simplified ordering and stocking
- Ease of installation with no missing parts
- Fast and reliable performance
- Energy consumption reduction, even amidst load variations
Ordering & availability
The superheat controller kit is now available for sales. Code number for ordering: SH Controller Kit EKE 100 1VK: 080G9100
More information
For detailed product information:
Optyma™ Plus P00 – new NTZ A2L models for extended low‑temperature applications
As part of our product range offering improvement, we are pleased to inform you that below aforementioned condensing units are all validated as standard with A2L refrigerants (factory setting).New model OP-LPVM096NTP00E has been launched to re-enforce the cooling capacity range product availability.
Details
Cooling capacity have been updated inside catalogue and will be release by week 51 inside CoolSelector. Installers shall ensure that the application envelopes are within the limits mentioned in instruction guideline and Coolselector. All instructions must be followed as provided in the Instruction Manual and user guide. For enhanced safety, the condensing units are equipped with built-in protections including high pressure, low pressure, and high discharge temperature safeguards refer Instructions and User guide for more detailed information.
More information
For instructions and usage with approved refrigerants, customer shall refer to the literatures available in Danfoss approved channels like Coolselector, Product store and here bellow:
New service cable for EKE 100/110 products
We are pleased to inform you about an important update regarding the service cable of EKE 100 and EKE 110 controllers. To ensure compatibility with the latest KoolKey version PV04, we are introducing a new service cable.
Product details
Current cable 080G5058 New cable 080G5067
The existing service cable (080G5058) will be phased out and replaced by the new service cable (080G5067). This change is necessary to maintain seamless communication between EKE 100/110 and KoolProg using KoolKey PV04.
Compability
Note: All new orders for KoolKey will be delivered with PV04 versions.
Affected controllers
- 080G5050 - Superheat controller and valve driver EKE 100 1V IP00
- 080G5051 - Superheat controller and valve driver EKE 100 1V IP20
- 080G5052 - Superheat controller and valve driver EKE 100 1V IP20 with display
- 080G5055 - Superheat controller and valve driver EKE 100 2V IP00
- 080G5056 - Superheat controller and valve driver EKE 100 2V IP20
- 080G5057 - Superheat controller and valve driver EKE 100 2V IP20 with display
- 080G5066 - Superheat controller and valve driver EKE 100 2V IP20
- 080G5059 - Injection controller EKE 110 1V IP20
Availability & ordering
For all future orders, please ensure that you order the new service cable (080G5067) instead of the previous cable (080G5058). This will guarantee compatibility and functionality when used with EKE 100/110 controllers, KoolKey, and the KoolProg PC tool.
The new service cable will be available for sale starting from week 5 of 2026.
Extension of the minimum frequency range to 20 Hz for HGX24 CO₂ T
We are pleased to announce that the HGX24 CO₂ T compressor series will be equipped with an extended frequency range in the future. The minimum operating frequency will be reduced to 20 Hz, matching the existing capabilities of the HGX34 CO₂ T, HGX46 CO₂ T, and HGX56 CO₂ T + LT transcritical CO₂ series.
Benefits for your applications
- Optimized partial load capacity for refrigeration and heat pump applications with high partial load requirements.
- Increased system efficiency through better adaptation to real operatingconditions.
- Product line harmonization for simplified system integration and control.
Please note that reliable oil return must be ensured when operating at low frequencies. The minimum frequency must be selected depending on the application and require careful coordination with the system components. We recommend to make adjustments in close consultation with your system design and control system.
Affected BOCK compressor ranges
- HGX24 CO₂ T (transcritical) / UL-HGX24 CO₂ T (transcritical)
- HGX24 P CO₂ T (with LSPM motors) / UL-HGX24 P CO₂ T (with LSPM motors)
- HGX24e CO₂ LT (subcritical) / UL-HGX24e CO₂ LT (subcritical)
Introduction
A new design key for compressors is being introduced to indicate the change. Compressors are assigned design key 085. The design key can be found on the compressor's nameplate (the least 3 characters of the machine number (No.)).
The minimum frequency of 20 Hz will be available for new compressor from the date of order receipt in calendar week 08/2026 (from February 16, 2026).
More information
- Selection software: BOCK VAP selection software: vap.bock.de
- BOCK Compressor Code Finder: Compressor Selector | Danfoss
- Product Store: store.danfoss.com
Launch of OFB shut-off ball valves
We are pleased to announce the launch of our new OFB shut-off ball valves. OFB is a series of ball valves. OFB shut-off ball valves are a suction solution for superior reliability of oil-free systems featuring Danfoss Turbocor® compressors. OFB efficiently prevents refrigerant migration during extended standby periods and the risk of liquid slug upon compressor restart. These valves are particularly suited for Danfoss Turbocor® oil-free compressors.
The OFB valve can be actuated by actuator or manually. Customers can buy Danfoss actuator and mount it on the bonnet of OFB to make the valve open and close. The actuators are being developed and will be ready for ordering in Q1 2026. Samples are available. Customer can also mount the manual kit which is delivered with OFB on the bonnet to open/close the valve manually.
Selection of OFB (available for ordering)
Selection of actuator (planned release in Q1 2026)
You can access the data sheet and the installation guide from links below:
Release of GBC 90 bar ball valves, sizes 18s to 42s
We introduced new designed GBC 90bar ball valve for CO2 application in early 2024 with size covers only from 6s to 16s. And today, we’re pleased to inform you that the bigger size range from 18s to 42s are now available and released to the market.
The newly released GBC 90bar with size 18s to 42s continue featuring stainless steel as the primary base material, providing customers with enhanced performance and reliability. The new models are similar in dimensions and connections as the existing models; therefore, they are an exact drop-in of former models for an easy replacement in an existing system design.
New code numbers will be created, and the existing CO2 GBC 45bar and GBCH 90bar will be phased out.
Launch plan:
- New design GBC 90bar, size 18s – 42s: Accept order date: Jan.1st, 2026
- Old design CO2 GBC 45bar & 90bar, size 18s to 42s: Last buy date: Mar.31st 2026
See design highlights from the table below.
Extended operating limits for transcritical (UL-)HGX SH(P) CO₂ T compressors
Description
In response to increasing market demands and expanding application areas for heat pumps, the operating limits of transcritical CO₂ compressors in the SH version have been extended. These compressors now support evaporating temperatures down to -35°C, enabling reliable operation at lower ambient temperatures, particularly when using air as a heat source. The SH version of the compressors is speci cally designed for applications with high evaporation temperatures above +10°C up to +25°C and features a modi ed oil lling with higher viscosity (oil charge SH version: BOCK C170E). This ensures optimal lubrication and operational safety under the entire operating conditions.
Extended operating limit for SH version
Benefits of the operating limits extension:
- Suitable for heat pump applications using air as a heat source
- Improved operational flexibility at low ambient temperatures
- Optimized oil viscosity in SH version for high evaporation temperatures
Please refer to the updated technical data sheets and operating limits in the product documentation and in the BOCK selection software VAP:
VAP - CO2 T Compressors (transcritical)
VAP – UL-CO2 T Compressors (transcritical)
Important note
Due to the higher oil viscosity in the SH version of CO₂ compressors, it is essential to ensure effective oil return within the system. This is critical to maintain reliable compressor operation and to support a long compressor lifetime under extended operating conditions.
Affected products
- (UL-)HGX12 SH CO₂ T
- (UL-)HGX24 SH(P) CO₂ T
- (UL-)HGX34 SH(P) CO₂ T
- (UL-)HGX46 SH(P) CO₂ T
Time of Implementation November 2025.
Products and selection
- Selection software: BOCK VAP selection software vap.bock.de
- BOCK Compressor Code Finder: Compressor Selector | Danfoss
- Product Store: store.danfoss.com
- Brochure, pictures a. m.: DAM Hub
Online support
You can access and download detailed product information through the Partner Portal/Product Data Tool
Contact: If you have any questions, please contact Danfoss contact person responsible.
Additional Schrader port for Optyma™ A1 & A2L/A1 packaged Slim Pack W05 ranges
As part of our ongoing product upgrades to the Optyma™ Slim Pack A1 and A2L/A1 ranges W05, Danfoss has modified the liquid line piping and added a Schrader port. This allows the unit to be equipped with accessories such as the Danfoss XGE-EC fan speed controller (Danfoss code 061H3246) for A2/LA1 B3 chassis unit equipped with EC fans, or Danfoss XGE-2CIQ01 fan speed controller (Danfoss code 061H3148) for A1 B1 and B2 chassis equipped with AC fans.
Service valve with braze type connection
B1 chassis
B2 chassis
B3 chassis
For existing field replacement, customers need to adjust the tubes for suction and liquid lines with the extended service valves.
For modified products fan speed controller can be added directly before or after commissioning with Schrader valve support. Electrical wiring should follow stat of the art and the wiring diagram from our instruction manuals:
- A1 units: AN40143613378401-010302.pdf
- A2L/A1 units: AN37261865152502-010602.pdf
Following the wiring diagrams you can experience 2 cases (example for single phase unit):
1. For B1, B2 and B3 chassis, AC fans XGE-2CIQ01 controller, Danfoss code 061H3148
• Remove the bridge 7 to 8 and Connect 2 to 7 and 1 to 8
2. For B3 chassis, EC fans XGE-2CIQ01 controller, Danfoss code 061H3248
• Remove connection between 7 and 9 and R3 potentiometer connection R3
Implementation is already done, serial number on week 24 28 and 31 2023:
B1 panels, Serial number: 179790CG3123,
B2 panels, serial number: 179243CG2823,
B3 panels, serial number: 178973CG2423.
Update - MTZ 4-cyl compressors qualified with R454A/C and R455A
We are pleased to announce the addition of the MTZ160 motor code 3 model to our A2L qualification program and its implementation into production.
The MTZ models listed below are qualified for use with refrigerants R454A/C and R455A, classified in Refrigerant Group 1. R454A has a GWP of 238, while R454C and R455A have a GWP below 150. These refrigerants are classified as A2L, indicating low flammability properties. Please refer to European regulations (EN378, EN60335) and EPA rulings in the US for safe use. Outside of Europe and the USA, consult local regulations.
The following compressor models are qualified for use with R454A/C and R455A:
All compressor models, except the MTZ160 motor code 3, are qualified with R454A/C and R455A starting from July 2025. The MTZ160 motor code 3 is approved starting September 2025, with the first serial number following the change implementation being 1009521266.
R454A/C and R455A are zeotropic refrigerants with a temperature glide of about 6 to 12K and must be charged in the liquid phase. Despite the MTZ and NTZ compressors being loaded with 175PZ, R454A/C and R455A can significantly dilute the oil. To prevent lubrication issues, a crankcase heater must be used. This heater protects against off-cycle refrigerant migration and is effective if the oil temperature is maintained 8–10K above the saturated low-pressure temperature of the refrigerant. Tests should be conducted to ensure the appropriate oil temperature is maintained under all ambient conditions.
A PTC crankcase heater is recommended for all stand-alone compressors and split systems, as they are self-regulating. In extreme conditions, such as very low ambient temperatures, a belt-type crankcase heater may be used in addition to the PTC heater. The belt crankcase heater should be positioned on the compressor shell as close as possible to the oil sump for optimal heat transfer.
There is no change in the ordering process; compressor codes remain the same. Compressor nameplates for Refrigerant Group 1 will be adopted accordingly, as informed in FRCC.EN.431.A1.02 (Compressor nameplate: Group 1 and 2, PED MTZ/NTZ One Cylinder Models). Compressors are also marked with a flammable refrigerant logo. For more information, please refer to the CoolSelector2 selection program available at www.danfoss.com.
Nominal performance data:
Please follow the operating map presented below.
Climate Solutions – BOCK®: Digital provision of assembly instructions
Summary
As part of our commitment to environmental sustainability and enhanced customer service, Danfoss is transitioning to a digital format for assembly instructions for BOCK® compressors. Printed instructions will no longer be included in compressor packaging. Instead, comprehensive instructions will be readily available on the Danfoss website.
If needed, instructions in paper format can be requested with delivery within one month.
The digital instructions are accessible via a QR code found on the compressor tag or via the website URL cc.danfoss.com/instructions for easy access.
Compressor tag with QR code:
Description
In alignment with our eco-conscious initiatives, Danfoss will be dematerializing printed instructions within compressor packaging. This transition does not only reduce paper consumption but also provides customers with the most up-to-date information regarding product evolutions, including new refrigerant qualifications and expanded performance maps.
Detailed instructions can be accessed at the following URL: cc.danfoss.com/instructions.
Affected products
This change affects all BOCK® products, except for ATEX and UL compressors.
Customer impact
The transition to digital instructions will not affect the compressor's functionality, performance or safety in any way. This change solely pertains to the method of accessing product instructions.
Verifications
The transition complies with European Regulation on Machinery (EU) 2023/1230 (replaces Directive 2006/42/EC) for incomplete machinery, defining mandatory health and safety requirements that machinery products must fulfil. Article 10 paragraph 7 thereof permits the sole digital publication of operating instructions, if they are easily accessible in the long term via barcode or URL on product or packaging, and are available in paper form on request.
Implementation
The change will take place on 1st December and will be gradually implemented. The change does not affect compressor parts numbers. Implementation is only valid for compressor which are produced in Germany and Czech Republic.
Online Support
You can access and download detailed product information from Product Data Tool in the Partner Portal: Partner Portal/Product Data Tool 
New Bi-Flow solenoid valve EVRC 6
Danfoss is pleased to introduce the new bi directional solenoid valve EVRC 6, designed for reversible systems such as heat pumps and reverse hot gas defrost applications. This latest addition has received UL/CSA approval, making it suitable for the North American market.
The EVRC solenoid valves are compatible with the solenoid coils used in the EVR series. For applications requiring higher capacity, the EVRC 15 and EVRC 20 valves are also available.
Available range of bi flow solenoid valves EVRC
For more information, please visit the Danfoss Store or contact your local sales representative.
GBCT copper tube versions: apply of new valve housing with access port integrated
Starting from Week 34, 2025, the Danfoss 140 bar ball valve GBCT (copper tube version) will feature a new valve housing with an integrated access port.
The changeover at the production plant will take place between August 25 and October 25, 2025. During this transition period, both the old and new designs will be available on the market.
The fit, form, and function of the product, as well as the code numbers, will remain unchanged.
Example of current and new design of GBCT 22s shown below
Current GBCT 22s, copper connector, without access port and with access port
New GBCT 22s, copper connector, without access port and with access port
This change will affect GBCT, copper tube versions shown below
Refined design—PSG scroll compressor for industrial process heat-pumps R600a/R134ze
The PSG compressor is a high temperature scroll compressor specifically optimied for W/W High Temperature Heat Pump applications ranging from 100 kW to 1 MW. It is primarily qualified with lw-GWP refrigerants such as R-1234ze (A2L), R-515B (A1), and R-600a (A3), which opens new possibilities for heat pump and booster systems that need to supply hot water up to 100°C. The compressor’s design has been refined o accommodate the standard source temperatures available in processes (10-40°C), ensuring efficit operation in W/W units, whether as a single stage or potentially as a second stage in a multistage system.
The PSG family includes two models: the PSG605 and PSG800, delivering 105 m³/h and 140 m³/h respectively at 50 Hz. Both compressors are compatible with a variety of manifold solutions, from tandem (both even and uneven) to even trios, providing maximum flxibility in creating potential unit lineups.
Additionally, a new generation of Oil Level Switch is integrated directly into the compressor, mitigating reliabilityrisks associated with temporary oil shortages.
Cut Away PSG605-800
MTZ 4-cyl compressors qualified with R454A/C and R455A
We are excited to announce an important update regarding our MTZ compressor models. These models are now approved for use with the refrigerants R454A/C and R455A, which can replace R404A and R507 in their applications.
The refrigeration industry has made significat progress in reducing the use of ozone-depleting refrigerants. A new trend of using synthetic refrigerants is emerging, driven by the global agenda on climate change and global warming. Synthetic refrigerants, particularly those with low Global Warming Potential (GWP), will play a crucial role in the industry.
Danfoss is committed to supporting the development and application of these refrigerants, enabling our customers to achieve low GWP goals while enhancing energy efficiey.
The MTZ models listed below are qualified or use with refrigerants R454A/C and R455A, classified in efrigerant Group 1. R454A has a GWP of 238, while R454C and R455A have a GWP below 150. These refrigerants are classified as A2L, indicting low flammabiliy properties. Please refer to European regulations (EN378, EN60335) and EPA rulings in the US for safe use. Outside of Europe and the USA, consult local regulations.
The following compressor models are qualified or use with R454A/C and R455A
This change will be implemented in July 2025. All compressor models listed above are qualified with R454A/C and R455A
Nominal performance data
R454A/C and R455A are zeotropic refrigerants with a temperature glide of about 6 to 12K and must be charged in the liquid phase. To prevent oil dilution, a crankcase heater is recommended. It protects against refrigerant migration and maintains the oil temperature 8–10K above the saturated LP temperature. Tests should be conducted to ensure an appropriate oil temperature under all conditions. A PTC crankcase heater is recommended for all stand-alone compressors and split systems. Under extreme conditions, a belt-type crankcase heater may be used in addition to the PTC heater.
Please follow the operating map presented below
There is no change in the ordering process; compressor codes remain the same. Compressor nameplates will specify Refrigerant Group 1, which includes hazardous fluids such as flammableefrigerants according to PED Classifiction. Compressors will also be marked with a flammable efrigerant logo to ensure clear identifiction and compliance with safety standards.
For more information, please refer to the CoolSelector2 selection program available at www.danfoss.com.
PSH039A4 50Hz VI envelope extension
Starting from last October, the 50Hz VI envelope of the PSH039A4ELA/FLA had been released with a maximum condensing temperature of 60 °C, compared to other PSH models at 68 °C . We are pleased to announce that after developing a new overload protector, the envelope can now match the area of other models, efective from August 2025.
Summary of the key points
Envelope extension: The 50Hz VI envelope of PSH039A4ELA/FLA is extended, with no changes to the 60Hz envelope.
Model naming: To diferentiate old and new models, the index of technical model name will be upgraded, while the sales code remains unchanged.
Electrical specifictions:
Updates due to the new protector:
- MOC changes from 31.8A to 36.5A
- RLA changes from 29A to 30.7A
Nameplate Update:
The nameplate will reflet these changes.
PSH039A4GLA model update:
Shares the same motor and protector update as PSH039A4ELA/FLA, changing model name to PSH039A4GLB and RLA updated to 30.7A. The technical model’s name on nameplate will be updated accordingly. With no impact on the envelope and other parameters.
Afected products
New models released for MLZ/LLZ evolution C with refrigerant R454A, R455A, R455C
Danfoss encourages the further development and application of low-GWP refrigerants and will enable our customers to achieve these GWP goals while continuing to enhance the energy efficiey of our refrigeration equipment.
Since 2023, We have released MLZ/LLZ version B models filled with POE oil RL46HB(215Z) approved with new A2L refrigerants R454C and R455C, which is also allowed with A1 low-GWP refrigerants R448A,R449A,R134a, R513 and so on. Now, new models MLZ/LLZ (motor code 1& code 2) version C (UL only) with refrigerant R454A, R455A, R455C have been released in June 2025.
Product Concept
Envelop with A2L refrigerants
Label
For detailed capacities, operation map and so on, please refer to Coolselector2. Polynomial coefficits are also available directly in Coolselector2 or via the intranet portal.
For further information, please refer to the application guideline.
Afected products
Models, refer to the attached table of order information.
MLZ015 -19 -21 -26 -30 -38 code1
MLZ015 -19 -21 -26 -30 -38-45-48-58-66-76,
LLZ013-15-18-24-34 code2
Important information regarding NTZ096-4 compressor and R454C refrigerant
Danfoss is committed to providing innovative and sustainable solutions for the refrigeration industry. We are pleased to share important information regarding the qualifiction of NTZ096-4 compressors with R454C refrigerant. The refrigeration industry has made significat strides in reducing the use of ozone-depleting refrigerants. With the increasing focus on climate change and global warming, the adoption of synthetic refrigerants with low Global Warming Potential (GWP) is becoming more prevalent. Danfoss supports the development and application of these low-GWP refrigerants and is dedicated to enabling our customers to achieve their sustainability goals while enhancing the energy efficiey of their refrigeration equipment.
NTZ096-4 Compressor qualifiction
We are pleased to announce that the NTZ096 model, motor code 4 (refer to models listed below), is now approved for use with R454C refrigerant. R454C can be used as a replacement for R404A and R507 in various applications. Please refer to the operating map for specific usage guideline.
Key details
- Refrigerant Compatibility: NTZ096-4 models listed below are qualified or use with R454C refrigerant, classified as efrigerant Group
- Low GWP: R454C has a GWP below 150.
- Flammability: This refrigerant is classified as A2L, indicting low flammabiliy. Please adhere to all relevant European regulations and directives (EN378, EN60335) and EPA rulings in the US regarding the safe use of A2L refrigerants. Outside of Europe and the USA, please refer to local regulations.
The following compressor models are afected
Implementation date
This change is efective from July 2025. All NTZ096-4 compressors, starting with serial number 1009503203, efective July 9th 2025, are qualified with R454Crespecting operating map presented on the next page.
Operating map (R454C with SH=10K):
Note: Compressors (one-cylinder models) have been qualified peviously.
Recommendations for R454C usage:
- R454C is a zeotropic refrigerant with a temperature glide of approximately 8K and must be charged in the liquid phase.
- Even though NTZ compressors are loaded with 175PZ oil, R454C can dilute the oil. To prevent lubrication issues, a crankcase heater must be used. Maintain the oil temperature 8–10K above the saturated LP temperature of the refrigerant. Conduct thorough tests to ensure proper oil temperature under all ambient conditions.
- A PTC crankcase heater is recommended for all stand-alone compressors and split systems due to its self-regulat- ing properties. In extreme low-temperature conditions, a belt-type crank-case heater can be used in addition to the PTC heater, positioned close to the oil sump for efective heat transfer. However, this is not the preferred solution for one- and two-cylinder compressors.
For further details, please refer to the following application guidelines. The CoolSelector2 selection program is available at www.danfoss.com.
Customer impact:
The ordering process remains unchanged; compressor codes will stay the same. Compressor nameplates will indicate Refrigerant Group 1, which includes hazardous fluids like flammableefrigerants according to PED Classifiction. Compressors will also feature a flammable efrigerant logo for clear identifiction and safety compliance.
ETS 5M valve and coil redesign
Looking to further enhance the performance of the ETS 5M portfolio and to extend the use of this product to more applications, Danfoss releases new models of ETS 5M valves and coils. The new design comes with improved robustness, reliability and an extended standard ofering.
The new ETS 5M valves come with either unipolar or bipolar coils, to enable management with EKE 100 superheat controller and valve driver range or third-party controllers.
From July 28th, 2025, Danfoss starts to replace existing ETS 5M models with new valve and coil design. Migration should be completed by 31st December 2026.
Sales codes are available for the new models of the valves and of the coils.
Please work with your local account manager during this transition to ensure you have the new code numbers set up in your system to avoid any problems during the migration.
Description
The new ETS 5M coil features following specifictions:
Valves and coils:
- Broader ambient temperature range (-40 to +80 °C)
- UL 429 certified (vailable in Q4 2025)
Coils:
- Wire gauge AWG#24 compatible with all types of electric connectors/plugs
- Bi-polar coil enables presetting in Danfoss controllers/drivers EKE/EKF
- Reverse sequence wiring to fit with 3d party controller • Simple and more robust “Clip & Turn” fixtion
- Higher IP enclosure (IP67)
- Market standard wiring and colour code, same as ETS 6 and ETS 8M
- More compact and lightweight
- Better lead time and faster reaction on customizations
The valve is adjusted with an additional fixing ing outside of the rotor tube to clip the coil. Inner valve design and performance are unchanged.
Please note that the existing valve/coil are NOT compatible with the new design.