After a comprehensive testing and development programme, Toshiba is introducing a new generation of luxury residential air conditioning systems based on the refrigerant R32.
The refrigerant has a much lower Global Warming Potential (GWP) than R410A, commonly used in air conditioning systems. The GWP of R32 is 675 compared to 2088 for R410A, representing less than one third the impact.
Toshiba’s initiative is partly in response to the recently revised F-Gas Directive, which encourages the use of refrigerants with a GWP of less than 750 in single split systems with a charge less than 3kg.
In addition, R32 not only has a lower GWP, but can deliver an equal capacity to R410a with a refrigerant charge 30 per cent smaller. As a result, total CO2 emissions can be reduced by around 77per cent.
The new refrigerant will be used in Toshiba’s new Mirai premium range of residential wall-mounted air conditioning split units, being launched at the end of May. They will be available in capacities from 1.5 to 4.5kW.
David Dunn, Toshiba director and general manager, said: “Many end users are looking to adopt greener, lower GWP technology. When combined with the advanced features of Mirai, R32 is an attractive option that is more environmentally friendly while delivering superb comfort.”
He added: “As most people will be aware, R32 is classified as slightly flammable under certain, specific conditions. However, following thorough testing and evaluation, it is now widely accepted within the industry that as long as good practice is followed, any risks are exceptionally small and can be managed – and fully acceptable in the light of the significant environmental benefits.”
Toshiba has been producing R32 units for the Japanese market since 2014. To date, some 225,000 units have been installed, without incident. Across all manufacturers, there are more than 5 million R32 units installed in Japan alone.
Toshiba’s new Mirai range features a number of technical advances, including dustless operation due to a special coating on the cooling coil, a larger heating capacity, and exceptionally quiet operation due to a 13per cent increase in fan size.
Units are designed to eliminate potential sources of ignition, and are equipped with brushless motors and a power relay instead of contactor. To reduce flame propagation, both indoor and outdoor units have fireproof steel enclosures surrounding the electrical systems.
For installers and service engineers working with R32, the refrigerant is classified as flammable and needs to be handled accordingly. Correct procedures are explained in the Hydrocarbon Safe Handling Course, which is a top up on the standard F-Gas qualification. Toshiba also advises technicians to inform their insurance company and check that tools such as vacuum pumps and recovery systems are suitable for use with R32.
Looking ahead, Toshiba has no plans at this stage to introduce R32 on larger systems in the UK, as it believes the optimum application range for the refrigerant on technical and performance grounds is probably in smaller units.
Toshiba will continue to offer air conditioning systems across its range on R410A, due to its proven performance and efficiency benefits, plus the service advantages of a single refrigerant on sites with multiple types of systems.
Resource Data Management (RDM) has released two major product updates for DMTouch, the intelligent control system front-end, and Intuitive TDB programmable logic controller. The updates are designed to enhance the already impressive capabilities of each, and extend capabilities for use in applications including heating and ventilation, energy management, process control, lighting and refrigeration and Building Energy Management Systems (BEMS).
Software v3.0 for the Intuitive TDB, a programmable logic controller (PLC), with built in PLC software, and free desktop editing PLC software, features a completely new web graphical user interface, upgraded display features, new unit measurement controls, live maps integration and more.
The new release supports integration with Live Maps, released last year, Live Maps is a web based service, designed to give users a visual, high-level comparable view across multiple sites. Accessible via multiple platforms it presents users with a simplified, comparable view of how sites throughout their estate are performing.
Targeted toward the OEM market, and those conversant in Modbus® protocols, an enhancement to the Type Editor feature, made available in Intuitive software v2.11, gives users the ability to create templates with read and write capabilities.
The new web Graphical User Interface (GUI) is user friendly and, as a result, a joy to navigate; it now adopts a similar format to that used on the DMTouch web interface. By making the web user interfaces for both flagship TDB products consistent, they are easy to grasp, manage, and set-up.
Users can select from five customisable home screen dashboards, and include control temperature gauges, thermometers, tables, graphs, alarms and more. The dashboards enable users onsite, and remotely, to navigate, and view, important information; lending itself to quick, easy and informed, decision making.
Seven new built in units of measurement have been added: metres cubed per second, metres cubed per minute, metres cubed per hour, kilograms per metres cubed, litres per second, and litres per minute, litres per hour. Users also have the ability to add their own ‘superscripted’ units e.g. cm^3/sec which the software will translate into cm3/sec.
Designed to maximise existing HVACR assets through the use of open protocols, DMTouch boasts a host of other benefits including HD Touch Display, free desktop PLC software, free site layout software and an unmatched 5 year warranty.
Installation, maintenance, and end user personnel will all benefit from the advantages that the market-leading control system front-end provides to their respective day-to-day roles. Software v2.3 introduces a number of new functions and time saving features, and is compatible with Data Managers 6.0 and above.
Energy monitoring functionality supports energy due diligence at a local level, which is of great benefit to those who do not have the requirement, or budget, for an external energy monitoring software solution. Users can view, and digest, complex and large amounts of data at a glance; reading from energy consumables across their site, including gas, electricity and any other set parameters. Highlighting savings and/or overspend, while presenting a detailed analysis on usage across specified time periods.
An exciting and practical feature, 3D graphs can be set-up to present general trends from a thirty day period, significantly reducing the time taken to interrogate and analyse data, and for trends and anomalies to be easily identified.
Improved site layout functionality allows for multiple site layouts to be managed at any one time. The direct CANbus interface feature delivers a direct connection between a DMTouch (hardware issue 10 and above) and an Intuitive Expansion Board. The option of adding up to ten expansion boards gives users the ability to increase physical I/O up to 480 points.
The Split Edit / Split TDB, and TDB back-up features are designed to complement the Intuitive range of TDB controllers, both will help save users time when creating, and installing, TDB programmes for either the DMTouch of Intuitive TDB controller. The split features all users to ‘split’ devices without losing earlier changes and/or re-splitting.
Other features include improved Document Upload, Data Export and System Log Search, enhanced Temperature Performance Indicator and Individual Night Blind functionality and the ability to bulk type parameter settings update. SSL web browser connections to a DMTouch or Data Manager (certification required) are also available.
Available since the end of April, feedback relating to the Intuitive v3.0 has been extremely positive. Jules Freeman, MD at Ourgate Productions was ‘‘very impressed’’ and will be using the software to support the install of a Boeing 737 cabin, for training purposes, at the new City of Glasgow College complex.
Intuitive software v3.0, is available free of charge to existing Intuitive TDB customers, please contact email@example.com. To purchase the new Data Manager/DMTouch update please contact firstname.lastname@example.org. Alternatively call 0141 810 2828, selecting opt 1 for sales, and opt 2 for support.
PRODUCTS: Less than a year after its launch, a new transactional website enabling engineers to purchase chiller spares online has proved to be a multi-million-pound success for Johnson Controls.
The EasyParts website enables engineers to purchase major spare parts such as compressor rotors, valves and motors online. Top selling items like oil filters, sensors and chiller safety devices are all easily accessible.
John Pritchard, Parts Director HVAC & R said: “The aim in setting up the service was simple - to make it as easy as possible for engineers and maintenance companies to order genuine replacement parts for York brand chillers online. It has worked incredibly well, and we are pleased with the rapid take-up.”
For engineers, there are several benefits of ordering online. The site gives 24/7 access to spares with expedited delivery, important in situations where plant has suffered a breakdown. Orders placed before 2.30pm can be delivered next day.
Users can see real-time stock levels for replacement components, and the
current status of orders, enabling engineers to track deliveries. It also provides access to order history and associated paperwork, such as invoices.
Importantly, the site uses photographs of spares to provide visual confirmation of the relevant part. It includes pictures for most of the company’s 15,000 active lines of stock.
“We wanted to create an Amazon-type site for the air conditioning and refrigeration industry. This is now part of everyday life, and most people are familiar with it and comfortable using it,” says John Pritchard.
The site is underpinned by a huge knowledge bank, containing details of most of the components used in the manufacture of York brand chillers since production began. The database contains some 200,000,000 individual records, taken from the Bills of Materials (BOMs) for York chillers.
These contain detailed engineering data and component lists for every machine made. Chillers are identified with a unique serial number, printed on the data plate inside the chillers’ controls cabinet. There are believed to be around 10,000 York chillers installed in the UK and many more further afield across Europe.
The site is designed to be dynamic and grow over time. As new chillers are manufactured and installed, the knowledge base is constantly updated.
“We began with information on chillers made in the original York Basildon plant, and then expanded to include machines made at other factories across the globe. That process is continuing as we build the knowledge bank,” says John Pritchard. “It is an ongoing project, and as the database expands it becomes evermore useful for customers.”
Johnson Controls provides training in the use of the system at its Basildon site, or on-line, and will also be demonstrating how it works to visitors at the forthcoming ACR Show 2016, taking place at the NEC from 16 to 18 February 2016.
The website is located at https://easyparts.johnsoncontrols.com
UK: Mitsubishi Electric has introduced a new replacement grille for air conditioning units, which automatically lowers the grille on any ceiling mounted cassette up to 4 metres high. Meaning that filters can be cleaned by non-skilled workers to reduce maintenance costs and improves health and safety by removing the need for ladders or towers.
According to the Health & Safety Executive over half a million working days were lost in 2014 due to falls from heights so finding ways to reduce risk is important for everyone.
The PLP-6BAJ grille is easy to fit as a replacement for any of Mitsubishi Electric’s PLA, or standard size PLFY models of 4 way blow cassettes.
Watch this short video demonstrating how the system works.
The grille is available immediately and can be controlled from a PAR31 controller or the remote control that comes with the grille. It is straightforward to use and includes an automatic lowering function to simplify filter maintenance and help maintain energy efficiency.
Keeping the filters clean saves on energy use and reduces the stains and smudges on ceiling tiles caused when filters become dirty.
UK: Toshiba is all set to raise the bar with the launch of its new groundbreaking energy efficient SMMS-e VRF air conditioning heat pump system.
The latest generation of the company’s industry-leading VRF continues to push the boundaries, by setting a new benchmark for energy efficiency and comes fully loaded with a number of industry firsts such as continuous heating and an innovative hands-free wireless commissioning system.
At the heart of Toshiba’s new technology is a new rotary compressor, which uses a two-stage compression process for improved efficiency and performance.
Surfaces on the compression vanes are treated with a high-tech Diamond-Like Carbon (DLC), giving outstanding hardness, wear resistance and reliability. This enables a significant increase in compressor rotation speed, resulting in a higher displacement volume of up to 50% greater than the previous generation of VRF systems.
As a result of the new compressors design and improved system controls, the operating temperature range has been significantly extended, and is now -5 to +46C for cooling operation and -25C to +15.5C in heating mode.
The system’s heat exchanger has been completely redesigned, using smaller diameter tubes arranged in three rows in the coil, resulting in a 13% increase in surface area, further improving performance and efficiency.
The capacity of the new generation heat exchanger can be adjusted to match the current load and ambient conditions. The new three-way variable heat exchanger enables the VRF’s control system to automatically select the optimum setting.
The SMMS-e breaks new ground in being able to provide continuous heating, with no requirement to stop during defrosts, as with rival systems. This is made possible by the use of a new hot-gas bypass control, which simultaneously defrosts outdoor heat exchanger coils, while allowing the indoor unit to continue operating in heating mode.
Advanced intelligent control
For installers, Toshiba has developed Wave Tool Technology (WTT), a wireless commissioning and performance validation tool that enables engineers to read and write data to the condensing unit using their smart phone, enabling testing and commissioning without removing the unit covers.
This WTT allows service and commissioning engineers to instruct and obtain key system information, simply by touching their smart phone onto the Near Field Communication (NFC) tag located on the outdoor unit.
The technology simplifies commissioning and reduces the amount of time spent on-site, giving the service engineer the ability to quickly and easily send key system data via e-mail back to the office for analysis.
Importantly, the SMMS-e is available in a wider capacity range than ever before. On the smaller end of the scale, indoor units are now available in capacities of 0.6hp, increasing the number of units that can be connected into a system, making it more flexible. Up the scale, outdoor units can offer up to 22hp on a single module platform, due to a newly developed chassis, reducing footprint, pipework and speeding up installation time.
With the new SMMS-e, it is now possible to connect up to 60hp in a single system, with up to 64 connectable indoor units, beating the previous 48hp maximum by a wide margin.
Improvements in pipe work and connectivity give significant advantages in terms of system design and application. Maximum total pipe work length for SMMS-e is 1000m (double the previous allowable length), with 235m now the maximum allowable distance between an outdoor unit and the farthest indoor unit, another industry first.
A maximum of 40m between indoor units is enough to cover an entire 11-storey building, expanding the application envelope for Toshiba VRF to larger buildings.
Finally, in another industry first, the combined compressor, heat exchanger and advanced intelligent control technologies ensure all of the outdoor units in Toshiba’s new SMMS-e VRF range have an ESEER (European Seasonally Adjusted Energy Efficiency Rating) higher than 7, making it a cut above the rest of it’s rivals.
PRODUCT UPDATE: Following on from its success, Climalife has responded to requests by users of the F-Gas Solutions mobile app and integrated a new “Leak Detection Frequency” module.
Already over 7,000 refrigeration and air conditioning professionals have downloaded this mobile app to cope with the challenges of the new European F-Gas Regulation (517/2014) which came into effect from 1 January 2015.
The latest update includes replacement options for R-22 (now banned throughout Europe) in existing installations, the most recent refrigerants to appear on the market and a new module to find out the leak detection frequency for an installation.
In order to use the new “Leak Detection Frequency” feature, just enter the refrigerant used in the installation and its charge and one click tells you the frequency with which leak checks MUST be carried out.
The F-Gas Solutions mobile app is an essential everyday tool for every refrigeration and air conditioning field technican, which tells you:
The F-Gas Solutions app is available in 7 languages (French, English, German, Dutch, Italian, Spanish, Hungarian).
The new F-Gas Regulation includes a number of requirements that affect the use and maintenance of refrigeration and air conditioning equipment containing HFC refrigerants. The exact rules depend on the type and size of equipment being used.
The regulations affecting existing equipment relate to (a) leak prevention, (b) record keeping, (c) the Service Ban and (d) the use of trained technicians.
To find out more about the mandatory leak checks requirements of commericlal and industrial refrigeration and air conditioning equipment and the responsibilities of operators under the European F-Gas Regulation (517/2014), read our 30 Essential Guides to the New F-Gas Regulation here.
UK: Fujitsu has introduced a range of factory engineered electronic expansion valves (EEVs) and a control unit as a DX kit, to enable other manufacturers’ air handling units (AHUs) and fan coil units (FCUs) to be incorporated into a Fujitsu VRF air conditioning system, or be connected to a dedicated Fujitsu VRF outdoor unit as a one to one system, to heat or cool outside air for building ventilation.
The three EEVs in the range – UTP-VX30A, 60A and 90A – support a wide range of capacities and a variety of control options, with temperature being closely regulated by multiple sensors located in the AHU or FCU.
Connectable capacity ranges from 5kW up to 50kW, with two EEV units connected in parallel on larger 33kW, 40kW & 45kW systems.
Control of the DX kit/AHU system can be either from a Fujitsu VRF system, a central controller or an external BMS system.
To train engineers on the new units, Fujitsu has set up a working DX kit system in its training facility at Elstree, and added a DX kit course to its training programme. DX kits can also be selected via the Fujitsu Design Simulator software program which also has a dedicated training course available.
Says Fujitsu product and specification manager Colin Goode: “We believe these new kits will prove very popular with contractors and specifiers alike, as they expand the application of our VRF systems enormously and add flexibility to the system design process as a whole.”
For more information about the DX-Kit for air handling applications click here
Fujitsu has released details of its latest product training courses running from this autumn through to spring 2016.
In all their are 10 courses ranging from an introduction to Fujitsu products, to hands-on training courses in the installation, commissioning and troubleshooting of VRF central controllers, splits and multi-splits, VRF and mini-VRF.
USA: This summer a new device called COOLNOMIX® is entering the United States as a solution to energy waste in commercial cooling systems. With dual temperature sensors and smart software, COOLNOMIX® provides superior temperature control and reduces refrigeration and air conditioning energy consumption on average by 30 per cent.
COOLNOMIX® improves temperature accuracy while increasing efficiency and prevents evaporator coil ice build-up on refrigeration systems. While this 3rd generation product has over ten thousand installs worldwide, it has just recently been UL certified and will be piloted at multiple military bases by the Department of Defense.
COOLNOMIX® can be installed in under an hour in alignment with the thermostat; requiring no change to the existing infrastructure and delivers a rapid payback.
The savings derive from smart software and dual sensors that increase temperature precision and optimize compressor operation and performance. Averaging between a 1 to 3 year payback.
Below is a graphic of the 20.5% energy reduction that COOLNOMIX® provided to CTM Telecommunication's server room following two weeks of testing.
Over 25 case studies have already shown the impact that COOLNOMIX® has had for organizations around the world.
Here’s a selection of some of the savings that COOLNOMIX® has already delivered.
COOLNOMIX® is great example of low cost, retrofit energy efficiency technology.
Continuing to show its commitment to providing its users with useful refrigeration technology tools, Testo has updated its refrigeration app for Android and Apple iOS devices to include vacuum measurement (only available with the testo 557) as well as data logging. These enhancements to the Testo Refrigeration App make the testo 550/557 digital manifolds the ultimate tool for refrigeration and air conditioning technicians.
With the updated App a user can now view vacuum measurement data right on their Smartphone or tablet from a remote location. This new data logging feature (available in both the 550 and the 557) enables the user to view the logged data, in a continuously updated table, and send this measurement data, in an Excel formatted report, via email for easy documentation. As with all new App updates, the App will alert users of the changes if they have the settings enabled for “App updates available” and “Apps were auto-updated.”
To find your nearest stockist visit www.testolimited.com/wheretobuy
To buy online visit www.testolimited.com/refrigeration-manifolds
To download the App with all the latest features visit www.fridgehub.com/apps/testo-digital-manifold
Toshiba has introduced a new device that allows you to control your air conditioning system in a fast and intuitive way from anywhere using your tablet or smartphone or your PC via the IntesisHome website.
The new Wi-Fi-based IntesisHome network controller can be used with all Toshiba indoor models using infra-red remote controllers, and light commercial and VRF indoor models.
It enables facility managers and building occupants to change settings and operating modes for Toshiba RAV and VRF air conditioning using an office computer, personal tablet or smartphone.
The wall or desk-top mounted devices can control on-off, mode, set temperature, room temperature, fan speed and some louvre functions.
Equipped with a learning mode, they identify all Toshiba air conditioning systems within a building automatically.
For the full list of compatible air conditioning units visit http://www.intesishome.com/support/compatibility-list/?lang=en.
The IntesisHome app for iPhone, Android, Windows and Blackbery is now available to download from our App Store.