No part of this journal may be printed in other publications without prior written permission of the Managing Editor. Disclaimer: Statements expressed in this publication do not necessarily reflect the policies or views of the associations, and members of IRHACE or CCCANZ. The IRHACE Journal publishes both local and international articles. Standards and or practices may differ from current New Zealand standards and or practices used. No responsibility is accepted by the associations and editor for the accuracy of information or for errors or omissions. The IRHACE Journal is distributed to all the IRHACE and CCCANZ financial members.
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FEATURES
8 10 17 18 20
The newly-completed Māngere Pump Station
Māngere Pump Station is the largest wastewater system in Auckland and will massively reduce wastewater overflows
A workforce for everyone
Groundbreaking research has been revealed, highlighting the hidden potential of Aotearoa New Zealand’s disabled workforce
Why do I need an Approved Filler?
RLNZ helps ensure a better understanding of Hazardous Substances and New Organisms Act 1996 (HSNO) requirements and the risks of releasing harmful refrigerants into the atmosphere
A chiller replacement at a state-of-the-art research institute
Judd Refrigeration has installed new Daikin equipment at the Hopkirk Research Institute
A world-class office building focused on sustainability
Green Star ratings are becoming more sought after in New Zealand, with one Wellington building achieving the highest possible score
This is our last issue for 2024 and we shout out to all our volunteers who work across many different aspects of the HVAC&R industry. Whether they judge for a competition, serve on standards-setting committees, or review industry standards and codes of practice, all their help is very much appreciated. Your time and expertise help shape a stronger, more innovative, and professional HVAC&R industry.
In this issue, you’ll find information on staying comfortable with dry mode, hear from BRANZ with their study between perceived and actual health of Kiwi homes, discover the potential of the disabled workforce and a chiller replacement at a state-of-the-art research institute.
Originally an outdoor celebration, the CCCANZ October Street Party transformed into an engaging indoor event. It featured quick-fire product presentations where suppliers had the chance to introduce their latest offerings to attendees. View here
Work-based training organisation Competenz discusses the role of apprenticeships in addressing the growing demand for energy-efficient cooling solutions, emphasising the importance of skilled refrigeration and air-conditioning (RAC) professionals in residential, commercial, and industrial sectors.
Coming up in 2025 is our inaugural trade show in the South Island SouthMACH with a feature of the HVAC&R South in Christchurch on May 28–29, as well as the annual HVAC&R Hub trade show in Auckland on July 15–16. If you don’t attend any other event in 2025, make sure you attend one or both events.
The HVAC&R Centre and industry associations wish all members and partners a Merry Christmas and a prosperous New Year. Here’s to a thriving 2025!
CEO: IRHACE, CCCANZ, HVAC&R Centre
November was a dynamic month with highlights including the STEM Transport Expo aimed at engaging young minds in the possibilities in the HVAC&R industry. Additionally, Whangārei hosted a regional industry night offering local professionals the chance to connect, learn and collaborate. A significant milestone was the Women in HVAC+R NZ five-year celebration with IRHACE as the event’s major sponsor.
PHIL MOHAN PRESIDENT IRHACE
GARY REILLY CHAIR CCCANZ
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AROUND THE INDUSTRY
1. Five years of Mates in NZ
In November, MATES in Construction proudly celebrated five years of supporting the mental wellbeing of construction workers in Aotearoa. They thank you for noticing when your mates aren’t quite themselves and for taking 10 seconds of courage to step into their space and ask ‘how are you doing?’
Mates helping Mates. Stronger Together.
2. Grand opening of New World The Sands
McAlpine Hussmann’s team was thrilled to be part of this journey for the long-awaited addition to the Papamoa East community. The newest supermarket in the area it now features the ARBS Product Excellence Award Winner: P-Series® range of refrigerated cases, known for delivering outstanding energy savings.
3. Simx out and about
SIMX were at the recent Conztruct round four event in Auckland. There was significant interest in several of their recently launched products, like the ultra-quiet dMEV, ideal for continuous extraction ventilation in homes without roof cavities. The new HeatForce DC, also got some attention, which is another continuous extraction solution, with built-in IR heat lamps and an LED light. 6
4. Competenz Cool Careers
The Competenz team Greg Stuart (National Manager Apprenticeships), Fiona Horne (Regional Manager), and Jonathan Newsome (Training Advisor) recently had the opportunity to connect with the best in the RAC industry at a unique, car boot sale-style networking Auckland event hosted by Institute of Refrigeration, Heating and Air Conditioning Engineers New Zealand Inc. (IRHACE). The team had a fantastic time exchanging ideas, sharing stories, and talking shop with fellow industry experts! Who said events had to be expensive to deliver – great idea CCCANZ, Amanda Wheeler Director Competenz.
5. RCR partners with PlaceMakers
Kamal Amziane, Key Account Operations Coordinator at RCR takes part in a video to let audiences know about the partnership. RCR have partnered with PlaceMakers to provide savings on their next Fujitsu Heat Pump when purchased from them and it gets installed by RCR.
6. Ice-Tech major chiller strip down
After three weeks of working to a deadline Ice-Tech completed phase one of two last week by carrying out a major chiller strip down and condenser replacement of this 1MW Climaveneta 6 pipe Heat Recovery Chiller operating on 2 x CSH Bitzer screw compressors and running on R134a.
7. Beattie Air receives award
Beattie Air Conditioning was acknowledged as Trade Partner of the month by Cook Brothers Construction for their hard work and coordinated approach to a complex design for the Waipapa and Parkside projects in Christchurch.
8. HVAC Depot Christmas celebration
This year it was celebrated in their brand-new facility with guests enjoying a classic sausage sizzle and plenty of laughs as attendees mingled and explored the new space together.
9. Cuddon in Las Vegas
The Cuddon team attended the MJBiz Con in Las Vegas showcasing The Original Resinator HiLyph edition of cutting edge range of freeze dryers.
VRF Systems with airCloud Tap
The smartphone app developed for HVAC professionals in mind. Enjoy contactless communication with air conditioning equipment! You can read & write commissioning and maintenance settings with your phone.
hitachiaircon.co.nz
Open airCloud Tap app
Tap your phone on the NFC symbol on the air365 Max unit
Read and edit the settings as you need
Tap again your phone to the air365 Max unit to apply the modifications
The settings can be saved in the app, and then copied later in other units with similar requirements
Activate the NFC function on your AC equipment
Open the airCloud Tap app and tap the AC equipment with your phone to create a connection
Edit the desired settings on your phone. You don’t need to stay close to the AC while editing.
Tap again to apply the new settings. The settings can be saved in the app, and then copied later
Staying comfortable with dry mode
Feeling the humidity? Thankfully, dry mode can help manage the moisture levels in your office and home
It’s probably one of the least-used functions on any air conditioning unit, but it’s ideal for combatting the humidity in summer or when it’s humid but too cool for the air con.
What is dry mode?
Most air conditioning/heat pump units offer a ‘dry mode’ function where the compressor and fan operate at a low speed, drawing air through the unit to remove moisture from the room without introducing too much of a temperature drop.
The benefits
A comfortable environment
By lowering the humidity, dry mode creates more comfortable spaces as humidity is often associated with sweatiness and fatigue.
Energy efficiency
Because the fan and compressor operate at a lower speed, less energy is required for dry mode compared to cooling.
A healthy atmosphere
Humidity can affect the air quality inside a building as it contributes to the growth of mould and mildew. Reducing the level of humidity with dry mode can help combat this and ultimately, help maintain a healthy indoor environment.
When should you use dry mode?
Dry mode is a great way to ventilate the home when it’s raining or about to rain. This is generally when inside the home can feel humid and ‘sticky’.
It’s a handy tool that can also help with condensation on windows, wet stains on ceilings and walls, and musty smells.
The newly-completed Mangere Pump Station
Māngere Pump Station is the largest wastewater system in Auckland and will massively reduce wastewater overflows, improving the quality of Auckland’s waterways and beaches
Heatwave Mechanical has been working on this project for the past few years, with the project about to be completed and handed over to Watercare.
“We just love playing our part and bringing our expertise to major infrastructure projects like this,” says Heatwave’s Maksim Manko.
Case study Q&A
When did this project commence?
Maksim: I originally priced this job in 2018. From here I re-priced it several times while the specification and commercial terms developed. We secured the Contract in late 2021, and the client indicated that the job would take place in 2023/2024. However, due to the volatility of material and labour pricing during the Covid years, they wanted to implement an early design and procurement strategy to secure all materials well in advance of the installation and commissioning. So, in early 2022 we finished design and implemented early procurement.
What has this project entailed?
Maksim: The Central Interceptor project is a major utilities infrastructure project that will massively upgrade Auckland’s sewer capacity for the next 100+ years. The final part of the sewer is Māngere Pump Station – at the bottom of the drywell are the large hydraulic pumps. Heatwave’s scope of work has been to provide industrial-scale ventilation systems to the drywell, and ventilation/cooling systems to the switchboard rooms and generator room.
The switchboard rooms have critical electrical equipment for the 24/7 functioning of the Central Interceptor and require a positive room pressure, highly filtered air and close-control balance with the supply/ return-air from these rooms. The ventilation system is armed with control dampers that either recycle or exhaust the air, dependant on temperature control requirements, in order to keep the switchboard rooms as stable as possible, ensuring positive pressurisation. The ventilation systems are corrosion resistant – built to last.
What have been the major milestones?
Maksim: The Māngere Pump Station project is just about to be handed over to the client, Watercare, by the end of 2024. We are working on other minor plantroom projects along the Central Interceptor which are also to be handed over by the end of 2024.
I have to say that one of our milestones, which I also personally enjoyed, was the completion of the drywell ventilation shaft which is nearly 40 metres in length and a very impressive installation from our team. Having priced this job back in 2018, I really enjoyed seeing this being built, and now with the project being handed over I am very proud of our team’s hard work, dedication and extensive experience in tunnelling projects which has put our best foot forward throughout this entire project.
What challenges have been faced along the way, and what solutions was Heatwave Mechanical able to provide?
Maksim: The design of the switchrooms was a very technical process which I felt that Heatwave contributed significant engineering decisions to reach a fantastic solution. The solution involves a clear Functional Description, so the supply/return-air fans modulate with the various control dampers in order to achieve the correct room pressure and temperature by either recycling air, or exhausting warm air.
The construction of the 40-metre drywell shaft and various ventilation droppers was also a great feat that was challenging, but well within our reach as our skilled tradesmen and managers have faced similar construction challenges on other major tunnelling projects such as Waterview Tunnel and the City Rail Link.
What is the next stage for this project?
Maksim: As we look to handover the ventilation systems to the client in late 2024, we are focused on long-term asset maintenance and management to ensure the durable ventilation systems serve the Central Interceptor system well, without failure, for many years to come.
heatwave.co.nz
A workforce for everyone
Groundbreaking research has been revealed, highlighting the hidden potential of Aotearoa New Zealand’s disabled workforce
Commissioned from All is for All by Waihanga Ara Rau and Hanga-Aro-Rau, Let’s level up delivers crucial insights for employers looking to boost productivity and foster inclusivity in the construction, infrastructure, manufacturing, engineering, and logistics sectors. By addressing the challenges and identifying opportunities to support disabled workers, the report empowers businesses to attract and retain untapped talent.
According to the study, 55.9 per cent of working-age disabled people are currently not participating in the labour force.
“At the same time, construction, engineering, infrastructure, logistics and manufacturing industries, which are core to Aotearoa New Zealand, are facing workforce shortages and an inability to meet future demand,” the report says. “Disabled people, if properly understood, enabled and supported, can form a more meaningful part of the labour force, supporting industry
to be more resilient and equipped for the future. However, for the potential of disabled people to be realised in this context, it is necessary to spark positive change at all levels, from quick wins to systemic shifts. This journey begins with understanding the voice and perspective of both disabled people and industry – and grappling with the current state so we can collectively head toward a more resilient and inclusive industry that works for everyone.”
A standard definition of disability is those who experience long-term physical, mental, intellectual or sensory impairments which, in interaction with various barriers, may hinder their full and effective participation in society on an equal basis with others. With the right support, disabled people can become a valuable part of the construction, engineering, infrastructure, logistics and manufacturing workforce, strengthening these industries and helping them step into the future.
Key findings
• More conversations and knowledge-sharing is needed: Employers are eager to learn, but this learning needs to evolve into ongoing conversations and shared knowledge to increase employment opportunities.
• There needs to be safe spaces for disclosure: Many disabled workers are reluctant to disclose their disability, fearing it may cost them their job or limit their opportunities.
• Neurodivergence is considered ‘most suitable’: When asked whether their workplace was suitable for different disability types, the results showed that neurodivergence was considered the most suitable across industries. However, neurodivergent people indicated that more work was needed for their workplace to understand and support them.
• Concerns about health and safety: Over half of surveyed employers worry that hiring disabled people could increase health and safety risks. However, research suggests that these risks may be more about perception than reality because disabled people are successfully managing health and safety in their sector.
• Traditional hiring processes overlook disabled people: Many disabled candidates are overlooked in hiring. Racism, sexism, and other legacy behaviours add to the barriers experienced in the hiring process.
• Room to expand bright spots: While there are efforts to include disabled workers, these are often driven by the passion of individuals rather than at a system level. There’s a big opportunity to tap into the potential of disabled people and create sustainable inclusion across industries.
• Access to a diagnosis is key: Not every disabled employee has access to a diagnosis. The research found that a diagnosis is critical to support the enablement of disabled workers. It helps them better understand themselves, advocate for their needs, be understood by others and opens up stronger pathways to establish the right support in the workplace.
The opportunities to improve
The research identified opportunities that, if fully implemented, could boost our country’s economy and industry productivity. Three core opportunities were identified for employers to ‘Level Up’ and realise the potential of disabled people in their workplace.
• Accessing available tools for disability inclusion and accessibility: Employers already have access to a variety of tools that can enhance inclusion for disabled people by providing information like myth-busting, advice and guidance for HR and management. There is the MSD toolkit and employer guidance by Whaikaha - Ministry of Disabled People.
• Starting a conversation: An immediate step employers can take to enhance disability inclusion, and indeed inclusion for everyone, is to ask all employees and potential hires, “What support do you need to do your job?” This question fosters a culture of openness and shows your willingness to discuss accessibility. Ultimately, it helps you identify ways to better enable everyone in the workplace.
• Integrating disability awareness as a regular workplace function: This could involve initiatives such as learning basic New Zealand Sign Language, both to incorporate Sign Language in your workplace and to improve communication in noisy worksite environments. Each business unit can adopt practices that meaningfully enhance their understanding of disability, and these can be scaled to suit your business. A critical first step is developing a common vision that serves as a strong foundation for the actions required to become a disability- inclusive workplace.
LEARN MORE
Driving innovation and growth through apprenticeship training
Part of the McAlpine Hussmann team, this apprentice is learning skills along the way to become a competent HVAC&R technician
Refrigeration and air conditioning apprentice Cody Smith loves nothing more than fixing stuff.
“Taking stuff apart, seeing why it failed, and figuring out what you can do to prevent it breaking again, is one of the best parts of my job,” says the 19-year-old McAlpine Hussmann employee.
The HVAC&R, or RAC, sector in New Zealand is rapidly expanding, offering dynamic career opportunities, including apprenticeships like Cody’s through work-based training organisation, Competenz.
With increasing demand for energy-efficient cooling solutions in residential, commercial, and industrial sectors, the need for skilled RAC talent has never been higher. As New Zealand pushes towards sustainability goals, including carbon reduction and green building standards, modern RAC systems are at the forefront of innovation in climate control technology. RAC training equips workers with high-demand technical skills, opening doors to job security and an exciting career pathway.
Now in his third year of the apprenticeship, Cody said he fell into his role: “I didn’t really know anything about
the industry. When I was researching trades at school it wasn’t something I stumbled across, but we had a family friend in the sector and my parents suggested I check it out.”
He approached Mt Wellington-based McAlpine Hussmann for some work experience and after two weeks he was hooked.
“I really enjoy being on the tools and being out on the road fixing stuff. I especially love working on RAC systems in the supermarkets which involves lots of hands-on mechanical work.”
He’s pretty good at it too, which is one of the reasons McAlpine Hussmann Northern Regional Manager Matt Gray snapped him up so quickly.
“If someone shows promise we don’t want to lose the opportunity. People like Cody with a mechanical hands-on skill set are a natural fit. If they’re into cars, can use a drill, know about sockets, and love pulling things apart and putting them back together, they’re usually the people we’re looking for.”
Matt, who is also a qualified Competenz assessor, says while technology is rapidly evolving in the industry, it’s still those with a practical hand that are driving the innovation.
“The younger generation is a lot more technology-based – kids are sitting inside gaming instead of out in the garage tinkering with their cars, so it’s becoming more challenging to get people into the field. Yes, RAC involves a lot of technology, but there’s still welding and brazing and pulling things apart.
“Demand for RAC services is booming and we hope to build our capability to take on even more apprentices. We recruit two or three apprentices in each year group.”
Currently with 12 Competenz apprentices in the Mt Wellington business – and 45 across the company nationwide – McAlpine Hussmann sits at the vanguard of this dynamic and rapidly evolving field.
As a teen, Matt always dreamed of becoming a race car driver or mechanic, but after a reality check from his dad, he entered the RAC sector instead. Now, nearly two decades on, Matt is helping shape the next generation of industry professionals.
“One of the things I love about our trade is that it pretty much touches on every other trade. If you’re a builder you just do building, if you’re an electrician you just do electrical work, but with RAC you do a bit of everything, from plumbing, electrics, and hands-on mechanical work, through to refrigeration and air conditioning. It’s really rewarding always having something different to be involved in,” he says.
The opportunities and pathways are as varied as the work itself. Since completing his apprenticeship 15-plus years ago Matt has climbed the career ladder, being snapped
up for project manager, service supervisor and regional manager roles.
“Others have become service and branch managers, design engineers, estimators, commissioning engineers. There’s a huge range of opportunities in RAC. In fact, most of our senior management team started as apprentices, and now they’re leading the business. It’s exciting to see you can do that.”
Upskilling staff through apprenticeships helps keep McAlpine Hussmann at the forefront of industry developments, fostering a culture of innovation, and enhancing business performance.
“Apprenticeships have become a crucial part of our business. We try to self-deliver and make sure we give customers the best experience by not relying too much on subcontractors to support us. Although it takes involvement and investment from our side, having apprentices gives us more control on the end product and customer experience. Without them, I think we’d have a lot more grey hair!
“This industry is very small and tight-knit but the reliance on RAC is growing rapidly. Everyone wants their produce kept cool and fresh, no one wants to work in a non-airconditioned office! We need to train more people up to ensure we have the future technicians to continue to meet our customers’ demands and needs.”
The industry has advanced significantly since Matt first started out, with sustainable practices at the forefront. The sector’s role in addressing climate change and energy challenges makes it an exciting and impactful industry to be a part of.
“The biggest change has been refrigerants. We previously used HFC (hydrofluorocarbons), but that’s bad for the ozone so now we’re moving to more natural refrigerants.”
McAlpine Hussmann has shifted to carbon dioxide refrigerants and is just about to finish the installation of its 100th CO2 rack in a supermarket.
“That’s a big milestone and massive for New Zealand. We also now use a lot of hydrocarbon refrigerants, but that technology brings challenges because of the risk. Compressor technology has also come a long way, with inverter compressors providing the capability to ramp up and down as required in order to cope with demand.”
It’s all exciting stuff for young apprentices like Cody who is looking to the future with enthusiasm and anticipation.
“The future in this industry feels bright and secure,” he says. “It’s a trade that’s here to stay, and I’m stoked to be a part of it.”
A focus on community
Apex Air recently completed two community projects in Auckland, each with unique designs and challenges
The
successful completion of the LDS Auckland Temple
It’s a building that’s hard to miss in Manukau – a joint effort by Westland Construction and Beca, with Apex Air playing their part in the building’s HVAC design and installation. A number of suppliers also played a crucial role in the temple’s construction, including:
• Trane (innovative cooling solutions)
• BDT (Mitsubishi Electric products)
• Cooke Industries (air handling units and attenuators)
• BTL (advanced control systems)
• ABC Pipe Fitters (their expertise in plumbing and piping)
• Eva Moore Sheetmetal (quality sheet metal work)
The temple is set to be dedicated on April 13, 2025, with an open house from February 27 to March 22, 2025.
This will be a wonderful opportunity for the community to explore the temple and appreciate its beauty and significance.
Design and build success for BAPS Community Centre
In partnership with Watts and Hughes Construction, Apex successfully completed HVAC design and build works for the recently completed BAPS Community Centre – a testament to effective collaboration and innovation.
Designed by architect Fred Stevens, the building aims to serve as a hub for cultural and social activities, with a focus on inclusivity and functionality.
Featuring leading technology from Fantech, Clint, Daikin, Holyoake and HVAC Controls, the centre benefits from state-of-the-art facilities, ensuring comfort and efficiency for all users.
Quick-fire product presentations
Our first-ever street party turned into an engaging indoor event featuring quick-fire product presentations, where many suppliers had the chance to introduce their latest offerings to attendees. Here’s a quick recap of the presentations:
• National Hood discussed their services for kitchen extract system cleaning, showcasing essential maintenance for commercial kitchens, https://www.youtube.com/ watch?v=r7D9NMYHBS0
• Refspecs introduced the Aquatechnik Safety Plus range, a fully serviceable fitting designed for energy and power savings, https://youtu. be/jIFK5nJwpTw
• Smooth-Air covered compliance with H1 VM3 Section 5.2.1.1 on ductwork and fittings, addressing insulation requirements to meet building standards, https://youtu.be/0urWe1xz9LM
• SIMX presented an EC Fan continuous speed controller and demonstrated their fan and heat recovery selection programme, https:// youtu.be/ZHthYgNVdV8
• Daikin highlighted their sustainability efforts with a talk on green certifications, emphasising the impact of sustainable p ractices on rents, prices, and property values, https://youtu.be/JDn5RD6SnyA
You can watch each of these presentations on our YouTube channel!
Why do I need an Approved Filler?
One of the roles of Refrigerant License New Zealand (RLNZ) is to ensure a better understanding of Hazardous Substances and New Organisms Act 1996 (HSNO) requirements and the risks of releasing harmful refrigerants into the atmosphere.
RLNZ was part of the industry’s response to the Tamahere cool store disaster when it was revealed that there was widespread ignorance of the regulations and that many unqualified people were carrying out unsatisfactory work, often in direct contravention of the Compressed Gas and other regulations.
The Approved Filler course (required by the HSNO 2004 Compressed Gas Regulations) is the minimum legal obligation for anyone working with refrigerants.
Why do I have to do an Approved Filler certification when I am already qualified as a refrigeration technician?
Under the Health and Safety at Work (Hazardous Substances) Regulations 2017, anybody handling or recovering compressed gases must have had suitable training and hold an Approved Filler Test Certificate. Most refrigerants currently used in New Zealand are classified as compressed gases under the Health and Safety at Work (Hazardous Substances) Regulations 2017. Some refrigerants currently used in New Zealand such as propane and butane are flammable and hazardous substances under the HSNO Act. Therefore, nearly all users of refrigerants are required by legislation to hold an Approved Filler Test Certificate.
If you are using any of these refrigerants then you must pass an A1 online theory, A2/A2L online theory and A2/ A2L practical assessment.
How do I renew my Approved Filler with RLNZ?
Renew your RLNZ Approved Filler license by learning current information for A1 and A2/A2L refrigerants and passing a practical assessment using current materials and fit-for-purpose technology.
Please register here
A1 Approved Filler for non-flammable refrigerants, with A1 practical assessment or
A2/A2L Approved Filler for flammable refrigerants, with A2 practical assessment
Useful links
Health and Safety at Work (Hazardous Substances) Regulations 2017
Approved Filler Test Certificate
A chiller replacement at a state-of-the-art research institute
Judd Refrigeration has installed new Daikin equipment at the Hopkirk Research Institute at Massey University’s Turitea campus in Palmerston North
It’s a building that supports processes and procedures that are integral to world-class research, with the work completed in the close to 4,000sqm of laboratory and office space focused on achieving and promoting scientific and technological excellence in areas relevant to the health and welfare of pastoral livestock, with an emphasis on infectious diseases endemic to New Zealand that threaten the livelihood of the pastoral sector.
Opened in 2007, a replacement chiller system was needed for the building.
The equipment
Daikin’s EWAH-SRB2 600kW air-cooled chiller has an ultra-low GWP (7) rating and zero ozone depletion potential (ODP) from using R1234ze refrigerant – a green
solution for low environmental impact.
With meticulous attention to fine-tuning each facet of operation, the chiller offers high efficiency for unmatched performance and economical operation. The 600kW air-cooled chiller provides an economical means to produce chilled water without the requirement for a cooling tower, avoiding additional system complexity and maintenance.
BacNet BMS interface was integrated into the onboard chiller control to allow for high-level control monitoring and early fault detection by the site’s building management system – there was only low-level monitoring with generic fault outputs on the existing chiller. This new ability for remote control and management reduces long-term running costs.
Installation
The installation process to replace the chiller required several considerations including the tenant’s existing operational requirements, particularly areas such as laboratories. The installation was scheduled during the shoulder season as the required cooling demands would be minimal through this period.
Before the start of the installation, trials were conducted by Judd Refrigeration to identify areas of the building that require continuous cooling demand. Once these areas were identified, temporary solutions were provided to meet the tenant’s requirements including installing portable air conditioners and providing a temporary cooling water supply to two autoclaves.
Challenges
Installation of the system was originally scheduled during the winter season as the required cooling demands would be minimised through this period. However, due to COVID-19 delivery delays and increasing ambient temperatures, a decision was made to install the chiller on temporary mounts to ensure cooling demands were met.
The crane lift of the chiller onto the third storey of the building was also a challenge. The day the lift was scheduled for had extremely poor weather conditions. It needed to be done at 6am for traffic management controls at the busy university with high staffing numbers and traffic movement. The lift itself required a spreader bar with careful connection points for lifting eyes due to the millimetre-perfect positioning onto the temporary mounts that had been Chemset fixed into place on the plant room concrete plinths.
Commissioning
The variation in COVID-19 lockdown restrictions within the different regions of New Zealand was a hurdle to overcome when it came time to commission the chiller.
The Auckland region was in a Level 3 lockdown, where Daikin’s Commissioning Engineer is based and no inter-regional travel was permitted. An essential travel exemption application to the government was lodged and approved to get the commissioning completed.
The commissioning and fine-tuning process was carried out over two days as environmental factors such as low ambient cooling, and the new R1234ze refrigerant properties were taken into account.
The expertise of Judd Refrigeration was utilised through Daikin’s latest technology product offering, giving this award-winning building an upgraded and sustainable chiller system that will benefit the research institute for years to come.
An ultra-low GWP energy efficient and cost-saving performance solution was delivered as well as an improved monitoring system that fits the building’s prominence.
A world-class office building focused on sustainability
Green Star ratings are becoming more sought after in New Zealand, with one Wellington building achieving the highest possible score and being recognised for its green construction
Originally built in the 1980s, Argosy Property’s 8 Willis Street - Steward Dawson Corner has been honoured with a Highly Commended award at the World Green Building Council’s Asia Pacific Leadership in Green Buildings Awards.
“We are thrilled to receive this international recognition for 8 Willis Street,” says Peter Mence, CEO of Argosy property Limited. “This award is a testament to the hard work and dedication of our team and all involved in the project, and to our commitment to creating sustainable, high-performance buildings that benefit both the environment and the community.”
With many local accolades already under its belt, including the Property Council Property Industry Awards’ 2024 Supreme Award, this latest commendation places the central Wellington office among an elite selection of buildings worldwide that are leading the way when it comes to low carbon sustainable design and performance.
How did it achieve this?
Rather than facing demolition, the building underwent a deep retrofit to ensure it met the latest seismic requirements, while delivering a world-class space. By
The right Green Star tool for you
preserving the building’s structure, the project was able to massively reduce its emissions while embedding state-of-the-art electrification and efficiency, water conservation and rainwater storage, and an impressive indoor environmental quality for its occupants – all contributing to the building being awarded Wellington’s first 6 Green Star Built rating by the New Zealand Green Building Council (NZGBC).
“We tend to say a 5 Star Green Star rating – the highest rating possible – indicates world-leadership in green building. Argosy now has an impressive accolade to back that up. Being recognised next to some awe-inspiring projects throughout Asia Pacific is a triumph and will no doubt inspire future developments to reach for the stars,” says Andrew Eagles, NZGBC Chief Executive.
As well as maintaining the old building structure, 8 Willis Street’s innovative design incorporates a range of sustainable features including advanced energy-efficient systems, rainwater harvesting and extensive use of recycled and locally-sourced materials. The building also offers a healthy and productive environment for its occupants, with abundant natural light, excellent air quality and flexible workspaces designed to enhance wellbeing and productivity.
Green Star is transforming the way our built environment is designed, constructed and operated.
Certification works toward:
- Reducing the impact of climate change
- Enhancing our health and quality of life
- Restoring and protecting our planet’s biodiversity and ecosystems
- Driving resiliency in buildings, fitouts and communities
- Contributing to market transformation and a sustainable economy
Whether you’re embarking on a new project, planning an entire precinct, or just want to get the most from your existing space, Green Star has a framework to help guide you to a more sustainable result.
Learn more
CPD is a good thing
Accessible to all technicians in New Zealand, IRHACE’s CPD Programme is flexible and covers a broad range of topics
There is an increased need for CPD (Continuing Professional Learning) points as compliance grows across the HVAC&R industry, and maintaining a set number of points is required to keep certifications and qualifications current.
In Australia, Victoria’s Department of Transport and Planning is aiming to introduce mandatory CPD for fridgies in 2025. It is developing a framework that will require HVAC&R technicians – as well as other building practitioners and plumbers – to meet CPD requirements.
In Victoria, HVAC&R work is regulated under plumbing regulations, so the changes will cover refrigerated air conditioning and mechanical services licence-holders. The framework aims to improve confidence in the community that all practitioners are competent in their work by ensuring they maintain and develop their professional knowledge and skills. The plan is for this to roll out in Victoria in 2025 and involve six hours of CPD training per year.
Tammy Stagg of Mick’s Air-Conditioning Services in Gracemere near Rockhampton, Queensland, says that as a primary school teacher in an earlier life – and now studying accounting – she is well aware of CPD and its implications across sectors.
“For anyone truly serious about working in this industry, then most will take part in opportunities to be up to date with current technologies and legislation. For us, it’s a major part of our business to take part in manufacturer training opportunities, trade nights, and reading industry publications so that we are up to date and provide the best service possible to our clients,” she says.
CPD opportunities are unlikely to be consistent from year to year, Tammy points out. “This makes it difficult to put a timeframe on CPD. So maybe instead of restricting to a 12-month quota, expand it to a two- or three-year requirement and include a vast array of opportunities.”
From her perspective, mandatory CPD would need to offer flexible regulations and recognise the inherent differences between industries and individual positions.
“The industry is very broad and not all tradies would require the same types of training. For instance, those in the commercial refrigeration sector would be working with different information and technology to those in the domestic air conditioning sector.”
It would also need to be accessible to everyone, she says. “Not everyone in rural and remote areas can access
training in Brisbane or other metropolitan areas. Being in a regional centre this is something that we’ve found over the years. With short notice and long distances, quite often we just have to say, ‘no, sorry, we can’t make it’.”
IRHACE CPD Programme
Thankfully, in New Zealand, the IRHACE CPD Programme already does just that – it is flexible and accessible.
For IRHACE professional members (Level 4 NZQA or RPL Member by Experience), there is a knowledge area and technical discussions. Should a M.IRHACE sit or attend an activity that they believe fits with their position and part of industry, they can apply to have this recognised as a CPD activity.
Technical discussions are also included in the programme, and those that participate are allocated points.
We also recognise our suppliers and manufacturers training as it is quite relevant in technology and new areas of the HVAC&R industry.
Major BRANZ study reveals marked gap and actual health of Kiwi
In the only national study of its kind for 20 years, nine out of ten Kiwis ‘healthy’ place to live, even though many still experience cold, dampness, wish their home was warmer
The landmark study is collecting data from over 750 households across Aotearoa New Zealand. This includes a survey of 425 households, with 287 of these being monitored for energy usage and indoor conditions.
Data from the household survey and early data from a smaller group of 125 homes monitored over winter 2023 show that homes – especially bedrooms – are warmer than when BRANZ last conducted this study 20 years ago. However, nearly half (48 per cent) of the survey respondents said they had mould in their home (11 per cent said it was larger than a sheet of A4 paper) and 33 per cent said their home was damp at least some of the time.
Around one in five said they could see their breath inside and a similar amount said their home was cold enough that they shivered at least some of the time in winter.
Homes warmer than 20 years ago
While average daytime and evening living room temperatures in the homes studied exceeded the recommended healthy minimum of 18°C, average night-time bedroom temperatures remain too cold, with some significantly below the ideal.
According to BRANZ General Manager Research Dr Chris Litten: “The overall results suggest that home temperatures during winter are better than they were twenty years ago, but issues of damp, cold and mould persist.”
Evening living room temperatures have risen from an average of 17.8°C to just under 20°C, and average night-time bedroom temperatures have increased from 13.6°C to 16.1°C, which could reflect an increase in the number of bedrooms that are heated as well as increased levels of insulation.
Unhealthy night-time bedroom temperatures are more common among lower-income households in the study. Bedrooms for young children were more likely to be heated than for others, however, around one in three reported never heating these bedrooms.
Homes are getting healthier, but faster progress is needed
“It’s good to see an increase in bedroom heating and temperatures. This suggests that improvements in insulation and thermal performance are having the desired effect, but building better needs to remain a focus,”
gap between perceived Kiwi homes
Kiwis consider their home to be a dampness, condensation and mould, and
says Dr Litten.
BRANZ is extending the scope of its original research to explore how energy can be used more efficiently, making living costs more affordable and reducing carbon emissions, while also making it easier to keep homes warm and dry.
“Underheated homes, ill health, and the financial stress of energy bills are a reality for many Kiwis. BRANZ is investing in this research to gain insights that will support positive change towards quality housing, affordable living, and efficient and effective energy use,” Dr Litten adds.
“Accurate, up-to-date, and accessible data on home energy use and indoor conditions will help inform policies and initiatives to help New Zealanders live in healthier homes while using energy effectively and efficiently.”
These new findings are the first early insights from the new study, focusing on winter heating, comfort, and internal temperatures. Following further data analysis, additional insights from the study are expected to be released in early 2025.
The Perfect Commisioning System
testo 570s, the digital manifolds with 4-way valve block, Bluetooth and large data memory, are opening up the future of intelligent longterm measurement on refrigeration and HVAC Industries.
testo 770-3 Clamp Meter
testo 560i Digital Refrigerant Scale and intelligent valve for automatic and precise refrigerant charging according to target superheat, subcooling, and refrigerant weight.
testo 570s Smart Digital Manifold
testo 770-3, the most powerful clamp meter, ideal for current measurement in switching cabinets. It is perfect for measuring tasks in tight application environments.
testo 560i Digital Scale & Valve
A shout out to all our
volunteers in 2024
Our volunteers work across many different aspects of the HVAC&R industry. Whether it be judging for a competition, serving on standards-setting committees, reviewing industry standards and codes of practice all their help is very much appreciated. Your time and expertise help shape a stronger, more innovative and professional HVAC&R industry.
for 2024
Alan Kelly
Alex Arnold
Andy Goodall
Ben Dalton
Cameron Wilson-Meek
Daniel Jordan
David Bottom
David Everett
Dean Moffat
Elias McKenzie
Garrett Glynn
Glynn Cowley
Grant Price
Jason Roberts
John Jenkins
John Kelly
Jorge Villazon-Leon
Lee Todd
Martin Lightfoot
Mike Dubey
Mitch Williamson
Neil Adkins
Neil Farnworth
Paddy Durham
Pete Hutson
Contact: Andrew Dwyer Phone: 09 274 7310
Robert Mannes
Rudolf Zettler
Trent McDonald
STEM AND TRANSPORT EXPO FOR REFRIGERATION AND AIR CONDITIONING
RLNZ attended our first STEM and transport expo was at MOTAT on Thursday 7th November 2024 at the Te Puawānanga Science and Technology Centre. The hot November day made hats the smart choice for everyone outdoors.
Featuring the RLNZ trailer with gas recovery, control boards, and an industry video offered a hands on and interactive way for us to engage. Hearing what the students’ opinions were on careers and us being able to introduce the possibilities of HVAC&R was a great learning experience.
There were Year 9 and 10 students from across Auckland and the variety of activities – like bridge-building, marine tech, robotics, coding, refrigeration, air conditioning and water education – offered students a broad look at STEM fields and careers. Introducing them to the many opportunities within the HVAC&R industry was a rewarding experience and a great way to build connections for future recruitment.
Speaking with several teachers and we found that the HVAC&R industry is not a path they might have considered before. It was great to connect with them and provide insights of our industry especially for our career pathways in refrigeration, air conditioning and mechanical building services.
Thanks to our volunteers on the day for providing an industry and technical perspective from Mark Meyer (Danfoss) and Malcolm Miller (Absolute Air Conditioning).
HVAC&R INDUSTRY EVENING
On Thursday, 14th November, the Northland HVAC&R Industry Evening was held at the Northland Events Centre, Semenoff Stadium. The event was well-planned, with promotional posters distributed to all major wholesalers to ensure strong participation.
A full house of 20 suppliers showcased a wide range of HVAC&R products and services, creating a dynamic and informative atmosphere. The venue buzzed with energy as over 40 attendees engaged in discussions, exchanged knowledge, and explored the latest industry offerings.
IRHACE ensured attendees were well cared for by providing a delicious food buffet, which allowed everyone to stay energised while networking. The suppliers’ door prizes added an exciting element to the evening, proving to be a major hit with the attendees.
The standout moment of the night was the awarding of a trade certificate to an apprentice by Competenz. This ceremony highlighted the importance of recognizing hard work and the value of continued growth and training within the HVAC&R industry.
HEATWAVE LOVES MECHANICAL BUILDING SERVICES
Heatwave are thrilled to be working on a technical and exciting design and build project at Middlemore Hospital in Auckland. The purpose of this project is to salvage the ejected heat from the hospital buildings and re-use this energy efficiently.
To achieve this, Heatwave’s engineering team studied the existing cooling and heating infrastructure and developed a solution utilizing energy efficient heatpumps that “stage up” their capacities to efficiently capture as much ejected heat as possible and supply it to the heating-water system, which is responsible for both potable hot water and HVAC heating.
With this energy recycling solution the client drastically reduces their annual energy bill - as they strongly progress their decarbonisation journey. Over the weekend in November, they enjoyed a great milestone for the project – the arrival and cranage of the chiller heatpumps and the buffer tank – as the progress for our pipework and electrical installation on-site for a completion by the end of this year.
CELEBRATING FIVE YEARS OF WOMEN IN HVAC+R NZ
In 2024, the Women in HVAC+R NZ group proudly celebrated its fifth anniversary. The event brought together a diverse mix of attendees who enjoyed the evening as much as the organising committee did.
“As event organisers, we deeply value the strong support from the broader industry. The turnout and feedback we receive inspire us to continue improving and growing these events,” says the group.
A highlight of the celebration was Kathleen Webber’s insightful presentation on the gender pay gap, the importance of valuing time, and how supporting leaders of all genders can enhance the HVAC&R industry. Her talk resonated with attendees and underscored the value of diversity and inclusion in fostering innovation and growth.
The evening also featured our annual awards, which recognise exceptional individuals and companies in our industry. Categories included Diversity Champion, Emerging Individual, Inspiring Individual, Behind-the-Scenes Hero, Committee Choice, and Highly Commended.
Congratulations to all the 2024 award winners for their remarkable contributions to the HVAC+R community!
IRHACE Industry Journal is a premium magazine for the refrigeration, heating and air conditioning industry with unique quality content that reaches a desirable audience and is free to download.
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