Giwee launches full DC inverter CHV Pro VRF
FOSHAN, Guangdong, China, 29 June 2022: Giwee has launched a full DC inverter CHV Pro VRF system, which the company described through a Press release as being suitable for, and as offering stable operation in, the Middle East region’s hot summer temperatures, reaching in excess of 50 degrees C.
With its high-quality components and superior structure design, the CHV Pro VRF series is quite suitable for T3 climatic conditions, the company claimed, adding that the T3 inverter technology, combined with high-efficiency condenser and refrigerant cooling technology, enables its maximum operating ambient temperature to reach 55 degrees C.
Giwee further said the CHV Pro Series DC Inverter VRF is suitable for heating and cooling of high-rise buildings, office buildings, hotels, apartments, hospitals and other places. The application enables long refrigerant pipe connections of up to 1,000 metres, and the height difference between the indoor unit of up to 110 metres makes the CHV Pro perfect for large projects, the company claimed.
According to Giwee, the single outdoor unit offers capacity ranges from 8 HP up to 32 HP. Four outdoor units can be combined in a VRF system to achieve maximum combination capacity up to 96 HP, the company said. Hundred indoor units, with capacity up to 130% of the total outdoor units’ capacity, can be connected in one VRF System, the company said, adding that the system is also equipped with functions such as centralised control, wireless communication, indoor and outdoor unit positioning and auto refrigerant status checking for easy maintenance.
Midea conference highlights its V8 VRF system
DUBAI, UAE, 1 June 2022: Midea launched the VRF V8 series as a major global initiative, citing Dubai as the best place to demonstrate the toughness and reliability of the system in facing up to sandy and dusty conditions and to high relative humidity and high temperatures. It said the V8 can work in temperatures ranging from 55 degrees C to minus 30 degrees C, making it ideal for operations in the UAE and Saudi Arabia, characterised by high temperatures, including higher ground temperatures.
Henry Cheng, General Manager, Midea Building Technologies, said the V8, which will go into production this month, is about reliability. “We want the product to be more reliable, so there is no need to repair it or spend that much time on maintenance,” he said. He spoke of the V8 having innovative features, including its shield box, which protects the incorporated printer circuit board (PCB) from getting affected by the outside environment, including sand, dust and moisture. “Water will damage the PCB, if it touches,” he said. “The PCB is in an isolated space, and no water will touch it. So, it can work safely for a longer time.”
Speaking on the other features, Cheng highlighted the V8’s hyperlink approach to connecting the wires. Elaborating on how in the past, installers had to connect the wires in series, he highlighted the inherent disadvantage of that approach, where if one unit stopped working, the entire system would stop working. The V8, he said, allows for the wires to be connected with greater flexibility, which improves reliability, eases the installation process and helps installers save time. A third feature of the V8, he said, is the high degree of comfort it allows through its constant airflow. “No matter where you are in the building, the airflow is constant,” he said.
Cheng also spoke of the V8 having 19 sensors and a visual sensor technology. If the real sensors stop working, the machine will duplicate to give virtual sensors – digital twin – which will continue the sensing process and simultaneously send a message to the maintenance personnel informing them of a problem with the real sensors for them to rectify. “This way, the system is able to work 24×7, so there is no shut down problem,” he said. He also spoke of the V8 featuring the ‘Midea Doctor 2.0, which would allow for using cloud for self-diagnosis. “So, with the V8, we have many leading technologies in the industry,” he said. “With the V8, we are the leader in the product.”
Addressing the issue of aftersales service, Cheng said Midea works closely with its partners, including Taqeef, which he added has a strong aftersales capability, including training and service centres.
“We also support our partners in increasing their aftersales service,” he said. “We have our technical engineers to support Taqeef, and we provide funds to partners to improve their service capability. As Midea we also have the TSP feature, and so partners can place orders for spare parts through the TSP and also through the cloud. So, we are enhancing our capabilities on aftersales. But, if we have a highly reliable product, you don’t need as much aftersales. We use high-end components, so we have fewer problems, and we would need less aftersales service.”
Cheng said Midea would continue to invest in the GCC region. But when asked if the company has plans to open a factory in the Middle East, he said it does not have any at the moment. “We have to look at the right partners and at the policies from the government,” he said. “We have had a discussion on this with the Abu Dhabi Investment Office.
Tariq Al Ghussein, CEO, Taqeef, speaking on Midea’s global growth, said that the very fact that the company has changed its name from Midea CAC to Midea Building Technologies reflects its ambition to provide comprehensive solutions to the building construction industry, including HVAC and elevators, to name two. “They want to supply all the components and software,” he said. “They continue to surprise us with how fast they are moving.”
The V8 features the refrigerant, R-410a, whereas it has R-32 for mini VRF systems. To a question about the possible use of refrigerants other than the two, considering that R-410a has a GWP of 2,088 and is facing calls from certain quarters for its phaseout and that R32 is classified as an A2L refrigerant, owing to its mildly flammable nature, requiring safety in handling, Cheng said Midea is one of the biggest manufacturers in the world and that the company is looking at all possibilities and will need to see the trend. “Different manufacturers are promoting different gases, and there are debates on regulation,” he said. “We will be ready once there is clarity.”
To a question about the global semiconductor crisis, and Midea’s response to dealing with the problem, Cheng said the shortage of chips is a global problem and one that affects all sectors and not just the HVACR sector. “From our perspective, we have learnt that we have to develop strategic partners on key components and to also strengthen our own capability,” he said. “And in China, we have set up our own chip factories in a small scale, and now we are accelerating to a big scale. We will enhance our capability in this area. There are many newcomers, who are planning to manufacture chips, and I think the problem will be solved very soon.”
THE GREAT DEBATE
DUBAI, UAE, 27 April 2022: CPI Industry, publishers of Climate Control Middle East magazine, will be hosting ‘The Great Debate: CHW vs VRF systems’. The second edition of the event, to be held on May 30 in Dubai, has captured the imagination of the industry and stoked excitement with its unique, courtroom-styled setting and format.
The first edition, held in 2011, at ADNEC in Abu Dhabi, was a novelty, replete with judge, jury, witness box and fiery advocates arguing with passion and interrogating at will to ascertain the best possible system, all things considered, to deliver affordable, efficient, resource-friendly, safe and reliable comfort cooling in the GCC region.
The Great Debate: CHW vs VRF systems is a revival of the 2011 setting, at a time when proponents of chilled water systems and variable refrigerant flow systems claim to have made substantial progress and achieved greater market penetration. Does the argument, ‘horses for courses’ hold true, or are we missing a point that holds the key to safe, sustainable, affordable and reliable air conditioning?
A key question that probably would settle the swirling dust surrounding chilled water systems and variable refrigerant flow systems is, ‘Where is the data?’ The Great Debate is an attempt at arriving at clarity, at a time when the world is desperately seeking solutions to lower greenhouse gas emissions, reduce total cost of ownership and to strengthen Indoor Air Quality interventions.
Whilst The Great Debate will feature technical presentations, the centrepiece of the event will be the unique courtroom setting, post-lunch, designed to host a no-holds-barred discussion on chilled water and variable refrigerant flow systems, with the aim of arriving at clarity on performance data on energy use, reliability, affordability and health & safety, amongst other topics, when the systems are deployed across multiple building profiles.
The conference will feature all the typical furniture and props of a courtroom, with stakeholders assuming the roles of judge, jury, advocates, witnesses (developers, building owners and building owner associations) and courtroom onlookers. The conference will summon proponents and consumers of both approaches to take to the witness box for cross-examination, with ample scope to present their side of the argument, with the aid of audio-visual presentations and any other means they may choose to build a strong case.
“The conference is not an attempt at gimmickry but a serious and earnest exercise to highlight facts with unprecedented clarity,” said Surendar Balakrishnan, Co-Founder & Editorial Director, CPI Industry. “It is expected that the coming together of master developers, developers, building owner associations, consultants, contractors, manufacturers, distributors and sectoral end-users in healthcare, hospitality, aviation, education and malls in a unique courtroom setting would prompt greater insight, leading to lowering of total cost of ownership and greenhouse gas emissions and to improving Indoor Air Quality.”
Key talking points in the courtroom session include:
- Energy efficiency in multiple building types/energy consumption on an annualised basis; M&V; onsite data harvesting and analysis
- Sources of energy: Natural Gas, hydrogen, Renewable Energy
- Water-use optimisation in multiple building types
- O&M issues (streamlined maintenance protocols)
- Refrigerants and occupant safety
- Cooling towers and human health
- Environmental impact (atmosphere, soil, water); net-zero-building aspirations
- Comfort cooling: reliability of cooling (last-mile guarantee), zoned cooling and heating, simultaneous cooling and heating
- Cost of installation, broad capex considerations
- Total cost of ownership
- Aftermarket service – including installation training, mentorship, support, supervision, spare parts – provided as a standard business practice by all manufacturers and suppliers
- Need for an international standard that provides standardised technical detail for minimum expected performance
- Regulation: MEPS and their impact on governing the performance of HVAC equipment and their interaction with other building assets in ensuring better building performance
- Smart cities and digital intervention
– ENDS –
For more details, contact:
Strategic Public Affairs Liaison & Events Manager, CPI Industry
M: +971 50 55 22 461
Daikin India acquires Citizen Industries
GURGAON, India, 16 December 2020: Daikin Airconditioning India acquired India-based AHU manufacturer, Citizen Industries through a share-purchase agreement, signed on December 15, the former said through a Press release.
According to Daikin, the acquisition will provide prominence to its current infrastructure influence and help increase its penetration across various applications.
Citizen Industries has two manufacturing units, a big base of R&D engineers and service technicians that Daikin said would complement its people strength. The integration of the two companies, Daikin added, would result in joint sales velocity; acquiring of ongoing air-side maintenance contracts; expansion into the applied and VRV solution business, including air side; a horizontal collaboration with American Air Filter (AAF); and catalysing economies of scale at Daikin’s Neemrana factory in the western Indian state of Rajasthan and its R&D centre.
Daikin said its acquisition of Citizen Industries mirrors its assertive philosophy of identifying opportunities ahead of time and building value around its offerings, while keeping customer requirements at the forefront to create a sustainable business, faster than the rest.