ARBS wrap Our best on show
Skills WORKSHOP
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HVAC&R Optimisation – Variable head-pressure control
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WHEN THE WORST
HAPPENS PREVENTING AND DEALING WITH HVAC&R WORKPLACE TRAGEDIES.
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July 2016 / ISSUE 093 / FREE
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2 | HVAC&R Nation | www.hvacrnation.com.au | July 2016
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ISSUE 093
HVAC&R Nation is published by the Australian Institute of Refrigeration, Air conditioning and Heating (Inc).
July 2016
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When the worst happens
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Magazine team Editor Boon Mark Souphanh boon@airah.org.au Tel: 03 8623 3011 Contributing writer Sean McGowan
Advertising sales Glenn Douglas glenn@airah.org.au Ph: 03 8623 3018 John McGrath john@airah.org.au Ph: 03 8623 3007 Sean McGowan reports on the processes you should have in place to keep you and your employees safe, and what to expect should the worst happen. ISSN 1834-9522 HVAC&R Nation is printed on paper sourced from well managed forests and other controlled sources.
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HVAC&R Nation regulars 6
The Toolshed see what’s new in the ‘Shed
Disclaimer
No responsibility is accepted by AIRAH, the Editor or HVAC&R Nation’s supply partners for the accuracy of information or for errors or omissions. HVAC&R Nation is distributed without charge to all financial members of AIRAH. The publisher reserves the right to alter or omit any article or advertisement submitted and requires indemnity from advertisers and contributors against damages or liabilities that may arise from material published. No part of this publication may be reproduced, stored in a retrieval system or transmitted in any form or by any means electronic, mechanical, photocopying, recording or otherwise, without permission of the Publisher.
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TRAINING LIFT-OUT HVAC&R Optimisation – Variable head-pressure control
8 Global Update industry news from around the world
HVAC&R Nation is an official publication of the Australian Institute of Refrigeration, Air Conditioning and Heating Inc. Statements expressed in HVAC&R Nation do not necessarily reflect the policy or views of AIRAH or its members.
Skills Workshop
13
Green Wedge
July exclusive 19
fuel your enviro cred
24 Around the Nation who’s in the news?
28
Fly Guy accessories to keep you fly
29
AIRAH and industry classifieds
free listings from around the nation
30
Lighter Side the shonkier side of the nation
Our best on show The ARBS 2016 exhibition in Melbourne proved that regardless of the influence of social media and the internet, nothing beats the opportunity to network with peers and colleagues from around the country and across the world.
July exclusive 26
Nathan McHugh
exclusive interview The 2016 Worldskills Australia National Refrigeration Competition saw Queensland’s Nathan McHugh take on nine of the finest refrigeration apprentices in the country and prove himself as the nation’s best.
Please consider the environment and recycle this magazine if you are not going to keep it.
July 2016 | www.hvacrnation.com.au | HVAC&R Nation | 3
➲ Editorial
EXHIBITION MISSION COMPLETE To most non-industry folk, “conventions” are reserved for geeks and nerds – a chance for likeminded individuals to gather and bask in their shared love for something a bit quirky. It’s not Comic-Con by any means, but in many ways ARBS is a chance for all of us HVAC&R geeks to do exactly the same.
Many of you confessed to having a laugh with your mates over the famed “back page” stuff-ups we feature in “The Lighter Side”. Others spoke enthusiastically about some of our recent stories and news-bites. A few even spruiked the impressive HVAC&R Nation collections they had at home or back at work.
I’ll be honest with you – going into ARBS 2016, I didn’t know what to expect. Sure, I was aware it was one of the biggest HVAC&R trade exhibitions in the world, but this year’s instalment definitely took things into hyperdrive.
So, I’d like to say thanks for your continual support. We enjoy providing you guys with a publication you can look forward to checking out each month. After all, we’re HVAC&R geeks ourselves.
With its decked-out exhibitor stands, a packed seminar program, a glitzy awards gala, and the latest tech on display for all to see – ARBS 2016 went down as the biggest ever, with record-breaking numbers coming through the doors across the three days. You can read more about it in our comprehensive ARBS wrap on page 19.
Boon Mark Souphanh Editor
Of all the grandiose experiences on offer across the three days, my favourite part of ARBS was without a doubt meeting you guys – the readers. It was enlightening hearing your feedback, and of course as HVAC&R Nation editor, it was nice to know that so many people read the mag (even if it is just a quick squiz during their smoko break).
Nominate now
Exhibitors take a break and “roll their arm over” after a big three days.
for the HVAC&R industry’s most prestigious awards Denis Joseph Award for Innovative use of Solar Energy in HVAC&R
Product of the Year
Excellence in Sustainability
Future Leader
Student of the Year
Excellence in Innovation
Best HVAC&R Retrofit or Upgrade
James Harrison Medal
Excellence in HVAC&R Research
2016
W.R. Ahern Award
AWARDS
The 2016 AIRAH Awards will be in Sydney on November 10. Nominations are now open. For terms and conditions, go to www.airahawards.org.au
4 | HVAC&R Nation | www.hvacrnation.com.au | July 2016
July 2016 | www.hvacrnation.com.au | HVAC&R Nation | 5
➲ Toolshed 01
Panasonic pushes forward
Part of Panasonic’s 2016 air conditioning line-up is the new range of large-capacity ducted split units, suitable for both residential and commercial applications.
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Zoom towards savings
ZoomLock brazeless press-to-connect fittings from Parker Hannifin earned the US gold award in the “Components & Accessories” category of the 2015 Dealer Design Awards.
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With four new models available – 16kW, 18kW, 20kW, 22.4kW – the range is designed with an ultra-compact side discharge outdoor unit that will fit down the side of a house without blocking the pathway.
The fittings are engineered for high-pressure copper refrigeration connections and are designed to replace the highly skilled and time-consuming practice of manually brazing copper joints.
Panasonic says it is the only company to offer a 22.4kW single split-ducted side discharge unit in Australia.
“Five years of research and development went into ZoomLock,” says the company. “The patented Parker ZoomLock technology was developed with contractor productivity in mind.”
“With outstanding energy efficiency, compact solutions and dynamic Cloud Control systems, the 2016 offering demonstrates Panasonic’s commitment to innovation in the air conditioning market,” says Panasonic national commercial sales manager Shane Quinn.
ZoomLock refrigeration press fittings are UL-listed to 700-psi operating pressure. They can be used in refrigeration applications down to minus 40°C and air conditioning applications up to 149°C.
02
Also recently unveiled, the Cloud Control System is designed to enable control and monitoring of up to 128 indoor units from anywhere in the world. Controlled via an interface on a PC, phone or tablet, the Cloud Control System is aimed at businesses that have multiple sites, or ones that require offsite monitoring or control of their systems via one interface.
For more information, go to www.sporlanonline.com n
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L&L products’ highly popular DECI-TEX range has achieved a “0” for fungal growth when tested to ASTMG21-15.
For more information, go to www.panasonic.com/au n
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According to the company, the rating makes the range perfect for the healthcare market.
Handling winter just got easier
Pro Choice’s ProSense Stinga Frost cold-weather dipped work gloves are designed to make handling cold, wet or oily materials much easier.
The DECI-TEX P30 features acoustic absorption, high thermal values, no fibre mitigation, “0” fungal growth, and pressuresensitive adhesive included.
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For more information, go to www.llproducts.com n
They feature a dual-layered liner with nylon and brushed acrylic to keep the hand warm, as well as a PVC foam coating to protect against cold, moisture, oil and grease. According to the company, the PVC coating also offers increased gripping characteristics and abrasion resistance, similar to riggers’ gloves, but in both wet and dry conditions.
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The winter gloves are independently tested by a third-party laboratory to EN388 Protection Against Mechanic Risk and EN511 Protection Against Cold.
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“The Stinga Frost cold-weather dipped work gloves are perfect for anyone who is working in cold storage or outdoors during winter – road workers, riggers, brickies, labourers, landscapers and fisheries – or those who are handling chains or ropes that have moisture on them,” says product development manager Brad Rodgers. “They’ll also reduce the occurrence of skin conditions, such as dermatitis, commonly associated with frequently wet hands.” For more information, go to www.prochoice.com.au n
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According to the company, BAXI boilers are “arguably the most efficient heating boilers available on the Australian market”.
The boilers are available in outputs from 35kW to 150kW. For more information, go to www.hydroheat.com.au n 6 | HVAC&R Nation | www.hvacrnation.com.au | July 2016
DBI-SALA’s Anchor on the Go is a cost-effective temporary roof anchor point that is designed for residential, commercial and industrial applications. Approved to AS/NZS 5532, the anchor provides a solution for fall protection during all aspects of roof access, maintenance, repairs or improvements on a variety of metal roofs.
A rubber end cap provides protection for roof sheeting. For more information, go to www.capitalsafety.com n
05
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Measuring up to the best
The Testo 760 digital multimeter family comprises three different models, which aim to cover all important electrical measuring tasks. Dedicated function keys replace the traditional dial on all three instruments, while measurement parameters are now detected automatically via the assignment of the measuring sockets and shown by the illumination of the appropriate function keys.
06
The BAXI Power HT and Duo-Tec MP commercial range of wall and floor-mounted boilers is designed with cuttingedge gas condensing technology, which aims to maximise efficiency and extend lifespan. BAXI specialise in the field of high-output condensing boilers. The products are designed for compact and scalable systems, making them suitable for range of commercial applications.
Anchor down anywhere
“Easy-Grip locking cam levers provide fast and easy tool-less installation and removal,” says the company. “The anchor is simply fitted directly to the roof sheeting. Re-positionable cams ensure a perfect fit on a variety of roof sheeting.”
Hydroheat on the boil
HydroHeat Supplies are the exclusive importer of BAXI Boilers in Australia.
Fungus fighters move forward
07
“There’s no shortage of solutions available in the electrical measurement market. The reason why Testo wanted to get involved was to offer a technology with real added value,” says the company. “Testo wants to provide contractors in the fields of heating, ventilation, air conditioning and refrigeration the ability to work more efficiently and safely. The new instruments are user-friendly, easy and intuitive, safe and suitable for a number of applications.” For more information, go to www.testoaus.com.au n
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ZoomLock braze-free fittings enable HVAC/R technicians to seal copper pipes without brazing, while creating a clean, secure, leak-proof connection. This reflects Parker’s commitment to solving the world’s greatest engineering challenges. parker.com/zoomlock | phone: + 61 9842 5150 | email: customer.service.au@parker.com
July 2016 | www.hvacrnation.com.au | HVAC&R Nation | 7
➲ Global Update RUSSIA
SIBERIA TOO HOT? Returning from an urban development research trip to Siberia, APEC researcher Alan Pears observed that too much air conditioning was being used in the notoriously cold region. “[My] experience in Siberia and elsewhere in Europe suggests that this is a global issue for housing,” says Pears. “When we insulate, seal and install advanced glazing to improve winter performance, we make our buildings more sensitive to summer overheating.” Siberia’s average daily temperature in its hottest month is approximately 25˚C, with overnight temperatures dropping to 13˚C. “We need to educate building designers and occupants about the importance of keeping summer sun out of buildings,” says Pears. n
8 | HVAC&R Nation | www.hvacrnation.com.au | July 2016
USA
CALL FOR CRIMINAL COOLING A federal judge in Louisiana will decide whether a local prison will install air conditioning for inmates on death row. The demand for air conditioning has come from three death-row inmates with medical problems. US district judge Brian Jackson questioned why prison officials won’t spent the AU$1 million to install air conditioning for death-row inmates, especially when the state has already spent more than that to fight it in court. In 2013, Jackson ruled that it was unconstitutional to keep inmates where the heat index exceeds 31˚C. Temperatures in the prison have already exceeded the 37˚C this year n
CZECH REPUBLIC
FREE-FOR-ALL FRIDGE The first public refrigerator in Prague, Czech Republic, was installed to solve the problem of wasted food products. The public refrigerator hosts food that would normally be thrown out. The food may be taken by anyone – the homeless, hungry students, even or those who have forgotten to buy food. “[The idea] came to me when I found out how much food is thrown away by our residents each year. It is dozens of kilograms,” says project organiser Pavel Vodička. “People can leave products that they do not use. For example, before going for a vacation or after the holidays, or just when there is extra food left. If someone wants to help, they can also participate in filling the refrigerator with food.” n
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July 2016 | www.hvacrnation.com.au | HVAC&R Nation | 9
➲ Cover feature
WHEN THE WORST HAPPENS “Most of the companies that work in HVAC&R do not have a lot of influence over the design and set up of these workplaces. So it can be very difficult to ensure that a workplace is appropriate for installation, maintenance or remediation work.” Kirby says there are a few things that contractor companies can do to themselves, their employees and subcontractors, and their business. The first step is the contract. “A well-negotiated contract with risks appropriately apportioned to the right party can not only allow business owners to keep their workers safe, but also keep their businesses solvent and profitable,” she says. “Not taking on unnecessary risks can save quite a bit of money in our experience.” According to Kirby, if you have a big job such as government contract, you may want to negotiate a seat at the design table into your contract.
Don’t play with fire. If you’re an employee, you will rely on your employer to provide you with a safe place to work.
“However, this does mean you will need to devote significant resources, as meetings are generally once a month at least so it isn’t feasible for all contracts.”
No one eve r wants to th ink about it but burying happening your head in to us, th e s a n deaths do n d pretendin ot occur is n g that workpla ot the answ ce on the proc e r. S ean McGow esses you sh an reports ould have in employees place to kee safe, and wh p you and y at to expect our should the w orst happen . It’s a morbid topic and one we’d rather not read about. But, the fact of the matter is that workplace accidents and deaths do happen – probably far more often than you realise. As of the end of May, 63 Australians had sadly died at work this year, according to Safe Work Australia. Without wanting to get into a breakdown of the industries involved (check it out for yourself at www.safeworkaustralia.gov.au), seven of those deaths have been recorded in the construction industry. So yes, it does happen. If you’re an employee, you will rely on your employer to provide a safe place to work. And while that’s an obvious prerequisite for any employer, the challenge of achieving this might surprise.
STARTS WITH THE CONTRACT “When you own a business, everyone is eager to tell you what is important, and it’s easy to be overwhelmed,” says Melissa Kirby, lawyer and strategist to smart industrial business with Melbourne law firm Sharpe & Abel.
“And to be frank, it’s easy to think that somehow you’ve gone into business to simply meet all your legal and regulatory obligations!” Kirby’s words will no doubt resonate with small business owners, and those intimately involved with keeping small business in business. But beyond the overwhelming feeling of drowning in paperwork, the reality is that ensuring safety in the workplace is one of the few directors’ duties that you are personally liable for and are unlikely to get insurance for as a business owner. So the bottom line is that workplace safety means your personal assets are on the line – including your home. Beyond the material, no one wants to be the boss responsible for a workplace death or injury under their watch. For contractor companies like most in the HVAC&R industry, the real challenge in achieving a safe workplace is in defining what the workplace is. “The workplace can be an office, a greenfield site, a brownfield site, and everything in between,” says Kirby.
10 | HVAC&R Nation | www.hvacrnation.com.au | July 2016
Another thing that contractors should ensure is that the contract allows for them to delay or terminate without damages being imposed, should the site not comply with the Work Health & Safety (WHS) Act and codes such as the Safe Design of Structures Code. “In many contracts, there will be a clause that states that you’ve made your own inquiries and that you take the site ‘as is’,” says Kirby. “For contracting businesses in building services, we always recommend negotiating a modification to this obligation.” For building services companies like those in HVAC&R, the site may have changed significantly between the time the contract was signed, and when the work actually commences. “You want to be able to have some recourse – like an extension of time, a variation or the right to suspend or even terminate – if the site is not safe for your workers.”
WORK HEALTH AND SAFETY A full list of state and territory WHS regulators can be found on the Safe Work Australia website www.safeworkaustralia.gov.au These include state regulators you will no doubt be familiar with, such as Safe Work NSW, WorkSafe Victoria, Workplace Health and Safety Queensland, and SafeWork SA. There are also other less well-known regulators that have jurisdiction over other areas, such as Mine Safety in New South Wales and the Department of Mines and Petroleum in Western Australia.
Cover feature AFTER DEATH
BUSINESS RISK ASSESSMENT For some HVAC&R businesses, particularly smaller ones with fewer resources available to them, a business risk assessment is a valuable tool. It can help you avoid the unthinkable – a death in the workplace. “A business risk assessment is a tool that we structured using AS/NZ ISO 31000:2009 Risk Management as guidance and taking into account the fact that the communities that we serve are all highly technical and complex,” says Sharpe & Abel lawyer Melissa Kirby. She says it was put together because companies need to prioritise their resources. The business risk assessment allows a business to look at its compliance obligations strategically and spend money on the areas that present the most risk. “It essentially takes an order-of-magnitude approach. This does not mean that you don’t have to comply with law – it simply means that a business can spend money on the areas that matter most.” For more information, go to – www.sharpeandabel.com
Of course, this requires good site due diligence to be done before a contract is signed and before starting on a job. After all, just negotiating it into a contract doesn’t necessarily make a site safe.
SAFETY IN DESIGN The HVAC&R industry is full of codes – some mandatory, many voluntary. The Safe Design of Structures Code of Practice and all other codes that have been approved under the Work Health & Safety Act 2011 (WHS Act) are not law, and therefore voluntary. However, in workplace health and safety, they are relied upon by the court for two things.
ORGANISATIONAL RESILIENCE
Should you be in the unfortunate situation of having an employee or subcontractor die in your workplace, there are a few things that a business owner needs to do.
What most businesses will not realise is just how many resources a death or even an injury in the workplace will cost.
Your first point of contact should be the state or territory’s work health and safety regulator (see sidebar). Usually, the regulator will provide you with support and guidance when such an incident occurs.
The impacts are not just monetary – there is also the time involved, the impact on staff morale, and the businesses reputation. And of course, for the business owner, their own emotional energy is impacted.
As the scene of the death may need to be examined, you should also make sure that the site is not disturbed. This may mean a disruption to business.
“Smaller HVAC&R businesses are likely to find it more difficult as the owner wears a number of hats. Diverting attention to dealing with a death in the workplace will inevitably detract from business as usual and bringing in more work,” she says.
Business owners in most jurisdictions will also have a duty to report the death to their insurer. “All Australian jurisdictions have mandatory workers compensation insurance, and the insurers must be informed, usually within 48 hours,” says Kirby.
For this reason, Kirby says it’s important to build organisational resilience into a business.
Business owners will also find it useful to contact a lawyer to guide them through the process, and protect their rights.
“It is possible to train an organisation how to work through these kinds of disasters and survive,” she says.
In most circumstances, what will follow after a workplace death is a coronial enquiry carried out by the jurisdictional courts, which will investigate the death. These usually take many months to complete. A business owner may need to give evidence in the coronial inquiry.
Emergency management experts, who conduct simulations of emergency situations in businesses such as workplace death or injury, can be helpful in building organisational resilience. Think of it in the same way you do a fire drill.
“It’s important for HVAC&R business owners to understand that each jurisdiction is different and that the circumstances of each death will be different too,” says Kirby.
“While you cannot always control the workplaces that your workers work in, you can put processes, procedures and training in place to prevent accidents and deaths from happening,” says Kirby.
“In an ideal situation, if your business is well-managed you should never have to learn firsthand what the legal process is in the event of a workplace death – and that’s the best outcome.”
“You cannot rely on the worksite keeping your workers safe – it is your responsibility. And, the cost of doing this will be far less than dealing with a death on your watch.” n
A TRAGEDY IN THE WORKPLACE Safe Work New South Wales v Austral Hydroponics Pty Ltd[2015] NSWDC 295
Code of Practice (Falling Risk Code) in 2011 – two years before this accident.
Mr Lam was a refugee from Cambodia, who as a child had been imprisoned by the Khmer Rouge and sent to a forced labour camp.
The Falling Risk Code specified that:
After coming to Australia in 1983, he started an industrial sewing business before later starting a hydroponics business called Austral Hydroponics with the help of his friend Mr Nuon.
The second allows the court to see what is “reasonably practicable in the circumstances.”
One day in 2013, Mr Lam asked Mr Nuon to remove some plastic sheeting from a hothouse. Unfortunately, Mr Nuon slipped and fell, resulting in injuries that caused him to lose the use of all four limbs and his torso. Mr Nuon later died from repeated pneumonia and complications as a result of his tetraplegia.
“Under the WHS Act, a person conducting a business or undertaking (PCBU) has a duty to do what is reasonably practicable to ensure the health and safety of workers,” says Kirby.
Mr Lam was left a broken man with post-traumatic stress disorder (PTSD), psychological problems, and the guilt of being responsible for the death of his friend.
“If there is a code about those circumstances – like the Safe Design of Structures Code of Practice – then the court can look at that to figure out what is ‘reasonably practicable’.”
Safe Work NSW brought both a civil and a criminal prosecution against Mr Lam and Austral Hydroponics. As part of its case, Safe Work pointed out that Safe Work Australia had published the Managing the Risk of Falls at Workplaces
The first is to inform the court about what is known about a particular risk or hazard.
According to Kirby, it’s always difficult to make good decisions when stressed and in an unfamiliar situation – no matter the size of the business or organisation.
• risk assessments had to be conducted, • a PCBU should provide training in respect to tasks where there is a risk of falling, • fall prevention or arrest devices were to be used where reasonably practicable, • where possible, such tasks are carried out on a solid construction. Since none of these steps had been taken, the court held that this was good evidence that Mr Lam had failed to do “what is reasonably practicable under the Act.” Sadly, Mr Lam lost his business, had a criminal record and lost his friend too. So although a code of practice is not law, complying with the codes will help you meet your obligations under the WHS Act. “Like health, prevention is always better than the cure,” says Melissa Kirby, lawyer and strategist to smart industrial business with Melbourne law firm Sharpe & Abel.
If there’s one code you should follow, it’s this one. July 2016 | www.hvacrnation.com.au | HVAC&R Nation | 11
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Green wedge
SUN-POWERED SETTLEMENT An amitibious new project aims to construct the “world’s most sustainable city”.
“Less than a year from today, the first residents will be settling into a whole new way of life – one that is conscientious, engaging and connected,” says Syd Kitson, the CEO of the development company Kitson & Partners, who has been working on the ambitious project since 2006. The development company has stated that its goal is to turn Babcock Ranch into the “world’s most sustainable city” and for it to become the first solarpowered city in the US. “We’ll always be producing more solar energy than energy we are actually using, and we’re very proud of that,” says Kitson. “And when it’s not solar power, it’s going to be natural gas, which might be the cleanest mix you can find in the country.” The ultimate goal will be for the solar facility to produce enough energy so it won’t need to switch to natural gas. The homes and buildings in the community are also designed to accommodate rooftop solar systems should homeowners want to increase capacity.
An entire city powered by the sun – once a green pipedream, now looks to be reality. Ten years in the making, a 74.5-megawatt solar plant will power a newly developed eco-town in Florida, US, with the goal of producing more energy than it consumes at the core of its design.
On top of its energy aspirations, the town also wants to minimise the use of cars by implementing an advanced, driverless transportation system that’s run by an Uber-like app.
Working with Kitson & Partners, Jennifer Languell of Trifecta Construction is designing the town to accommodate electric and autonomous vehicles. “There are 15 new electric vehicles coming out this year. We are making sure when we are putting in the roadways that we have the infrastructure to put in those car chargers,” she says. “Maybe in 20 years autonomous vehicles might be the reality. We are trying to be forwardthinking and be adaptable in what we are doing and be durable in what we are doing.” When completed, the town will comprise of 19,500 residences (housing approximately 50,000 people), a downtown, and a total of 560,000 m2 of commercial and community space. n
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July 2016 | www.hvacrnation.com.au | HVAC&R Nation | 13 HVAC HP Be Impressed 220X150 NoBleed v1.indd 1
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14 | HVAC&R Nation | www.hvacrnation.com.au | July 2016
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HVAC&R OPTIMISATION – VARIABLE HEADPRESSURE CONTROL FOR WATER-COOLED CONDENSERS
This month, we’ll look into the optimisation strategy of applying variable speed drive (VSD) controllers to pumps for head pressure control of single water-cooled direct expansion (DX) units. By controlling the head pressure of water-cooled condensers, you are able to improve the energy efficiency of air conditioning systems in part-load conditions. When implemented correctly, this strategy could result in reduced energy consumption of CW pumps by 10–30 per cent, as well as improved control and reliability for AC systems during part-load conditions.
STRATEGY SUMMARY Controlling the head pressure of water-cooled condensers improves the energy efficiency of air conditioning systems in part-load conditions. This optimisation strategy involves applying variable-speed drive (VSD) controllers to pumps for head pressure control of single water-cooled direct expansion (DX) units. It also involves applying condenser water (CW) modulating head pressure valves for head pressure control of multiple water-cooled, AC DX units supplied by CW from one CW pump.
pressure of the refrigeration cycle. This reduced pressure can then be maintained by VSDcontrolled pumps, which would save additional energy compared to a control scenario where the pump is running at fixed speed. Appropriate head pressure or condensing pressure is important for the proper operation of AC and refrigeration systems with head pressure maintained in several ways. The most energy
efficient way of maintaining condensing pressure (constant or, even better, floating set point) of water- cooled condensers is to adjust the amount of heat rejection in condensers: • by VSD controllers for single AC units • via CW-modulating head pressure valves (for multiple AC units, that are supplied CW from one CW pump).
Implementation of this optimisation strategy could result in reduced energy consumption of CW pumps by 10–30 per cent and improved control and reliability of the operation of AC systems during part-load conditions.
PRINCIPLE AND EQUIPMENT During lower ambient air temperatures, the AC load typically decreases while the capacity of condensers increases. Energy savings are therefore possible by reducing the condensing
Water-cooled condenser/chiller. July 2016 | www.hvacrnation.com.au | HVAC&R Nation | 15
➲ HVAC&R Skills Worskhop For multiple AC units that are supplied CW from a pump controlled by a VSD (such as supplementary tenant AC systems), it is also important to automatically shut off the water supply to the condenser when the AC unit is not operating. This will significantly reduce the energy consumption of the CW pump.
CAUTION
risk from over-condensing. The additional CW flow also results in wasted energy at the CW pump. In many buildings, CW continues to circulate through the AC units even when they are not in operation, thereby wasting energy at the CW pump.
OPPORTUNITY FOR OPTIMISATION
AC systems should maintain adequate condensing (or head) pressure in order to enable the proper operation of the vapour compression refrigeration cycle. Supplying more CW than required will extract more heat from the condenser, thereby causing over-cooling or over-condensing of an AC system.
The following control strategy and parameters are recommended in order to maximise the energy efficiency of refrigeration systems while not compromising their performance:
Over-condensing reduces the condensing temperature and condensing pressure, compromising the performance of the vapour-compression refrigeration cycle of the system.
2. for multiple AC units fed by a single CW pump: using CW modulating head pressure valves to control the amount of heat rejection by controlling the amount of CW entering the condenser.
MINIMUM REQUIRED INFORMATION The minimum required information for maintaining head pressure includes: • head pressure set point • control strategy for modulation of the amount of heat rejection • type of refrigerant.
MINIMUM REQUIRED EQUIPMENT The minimum required equipment includes: • field sensors (temperature, pressure) • controllers and data processors • CW pump • if the CW pump supplies CW to multiple DX AC units, a head pressure control is required • VSD controllers.
CURRENT PRACTICE Most water-cooled condensers employ one of the following common control strategies to maintain head pressure: • constant CW flow as per manufacturer’s requirement • constant CW flow as per HVAC system designer’s requirements. Both control strategies ensure sufficient heat rejection during the hottest O/A conditions; however, they potentially compromise part-load performance of associated AC DX units due to the
• Determine optimal head pressure or calculations for a floating head pressure. • Maintain optimal head pressure: 1. for single AC units: using VSD controllers to control the amount of heat rejection by controlling the speed of condenser pump
• When AC units are not in operation, ensure that CW to these units is isolated through a two-port valve.
ENERGY-SAVING POTENTIAL, COSTS, BENEFITS AND RISKS Variable head-pressure control is typically a costeffective HVAC energy-efficiency improvement. It does require some investment in new drives, valves and controls; however, it can immediately reduce the energy consumption of the HVAC system by reducing system pump power. This strategy can save up to 30 per cent of energy consumed by CW pumps. Benefits arising from controlling the amount of heat rejection for water-cooled condensers include: • more reliable operation of refrigeration systems • reduced energy costs • reduced GHG emissions • reduced pump maintenance costs.
POTENTIAL RISKS INCLUDE: • inadequate set-up of the head pressure control valves with units either over-condensing (unsatisfactory performance and energy wastage at CW pump) or under-condensing (unsatisfactory performance, energy wastage at AC unit and risk of units tripping on protection devices) • in open circuit systems, if the CW flow is shut down when the AC unit is not in operation, this creates a dead le.g. with the associated risks of corrosion and microbial growth • supplementary AC units are typically owned and installed by tenants. Failure to seek their cooperation before carrying out modifications
16 | HVAC&R Nation | www.hvacrnation.com.au | July 2016
(such as shutting down CW flow when AC units are not in operation) and failure to execute this measure satisfactorily can damage relationships.
APPLICATION NOTES Maintenance of head pressure using VSD controllers to control the speed of the CW pump is applicable for any single water-cooled AC system that operates on a vapour compression refrigeration cycle principle. Maintenance of head pressure using CW head pressure valves to control CW flow of multiple AC units fed from one CW pump is applicable for water-cooled AC systems, which operate on a vapour compression refrigeration cycle principle. The installation of two-port valves to shut off CW supply to AC units when not in operation is best carried out during manufacturing when the unit is specified. When retrofitting, it is essential that the manufacturer’s advice is sought to prevent nuisance tripping of the units or affecting the warranty of the units.
OTHER VARIABLE SPEED APPLICATIONS FOR HVAC STRATEGY SUMMARY Apart from the uses of VSDs for motors discussed so far, there are many other HVAC applications in which VSDs are employed. Some of these are applied to achieve energy savings, while the main role of other applications could be to serve as soft-starters i.e. as electrical devices to optimise the starting current of motors. As these applications are not essential for major energy savings in HVAC systems, but are still important, their basic characteristics are briefly explained below. Appendix D outlines the relationship between flow rate, pressure and the energy consumed by a fan or pump. These affinity laws can be used to estimate energy savings.
PRINCIPLE AND EQUIPMENT When retrofitting VSDs, motors should always be checked for their ability to run at reduced speeds. Older motors, typically more than 20 years old, may also have insulation that is brittle and the installation of VSDs could lead to premature failure. However, in most cases, the cost of a new motor will be small in comparison to the potential energy savings and other benefits. The photo (previous page) shows two partially throttled valves that are being used to regulate the water flow through a CW system. The same water flow can be maintained by opening the valves and reducing the speed of the pump by using a VSD. This optimisation strategy will save system energy as reducing pump speeds reduces pump power consumption.
HVAC&R Skills Worskhop chillers. Primary CHW flow controlled with a VSD varies between a minimum and maximum flow rate and is based on the type of chiller. Minimal value is typically set as 10–15 kilopascals (kPa) above CHW pressure differential settings for a chiller’s flow switch, to ensure proper operation of the chiller during low CHW flow conditions. With the introduction of a secondary CHW loop, this potential greatly increases,.
Outdoor air fans (risers) In many buildings, O/A is provided to AHUs and spaces via masonry or ducted shafts and risers. Typically, the O/A fan is controlled by the VSD controller, which maintains a certain static pressure in the shaft or a duct (100–200 Pa typically). As AHUs have their own fans, very often, there is an opportunity to reduce the static pressure set point of the O/A fans and their energy consumption. This should be carefully considered on a case- by-case basis and investigation should include air flow testing. At very low part-occupancy, i.e. after-hours operation, O/A and spill fans can be shut down completely in some circumstances.
Kitchen hood exhaust and make-up fans
PULLOUT
VSD controllers can be used to adjust the air flow of exhaust and make-up air fans in kitchen exhaust systems and the like to reflect actual usage rates.
Return air fans In VAV applications where S/A fans are typically fitted with VSD controllers, R/A fans, if they exist, should also be fitted with VSD controllers.
Throttled (choked) distribution system.
OPPORTUNITY FOR OPTIMISATION Supply air fans (constant air volume applications) in air-handling units During mild weather conditions, the amount of S/A can often be reduced without compromising comfort while saving up to 50 per cent of fan energy. Typical settings would be: • speed changes between 70–100 per cent corresponding to O/A temperatures from 23–27°C (adjustable) • the VSD controllers would run the S/A fan at 100 per cent speed if the O/A is higher than 27°C • the VSD controllers would run the S/A fan at 70 per cent if the O/A is below 23°C • if the O/A temperature is between 23–27°C, the speed would be adjusted based on a linear function between the O/A temperature and the speed of the S/A fan
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• an override function would be available to increase the speed of the fan if space temperature increases at lower O/A temperatures.
Numerous strategies exist for satisfactory operation and optimisation of R/A fans including plenum pressure control and tracking S/A fans. Significant performance and efficiency gains can be made with strategies to match the duty of the R/A fan to the S/A fan.
Bathroom exhaust fans
Alternatively, the indoor temperature can be used to control the fan speed. Minimum O/A flows for ventilation should be sufficient at all times, in line with AS 1668.2 requirements. A minimum fan speed/air flow is required to maintain the air diffusion from the S/A registers; motors should be checked for allowable speed turndown.
Primary chilled water pumps The amount of CHW pumped to the field and the energy consumed by CHW pumps can be reduced in response to the reduced cooling load during part-load conditions of HVAC systems. This potential energy saving is limited by the minimum CHW flow required for associated
Bathroom exhaust fans can be fitted with VSD controllers if they serve multiple compartments, e.g. in multi-story residential apartment buildings, so that they can reduce air flow during periods of low system usage (e.g. from 11pm to 5am). n
MORE INFORMATION This month’s Skills Workshop was adapted from the NSW Office of Environment and Heritage’s HVAC Optimisation Guide. For more information, visit www.environment.nsw.gov.au
Next month: Gas measurement guide July 2016 | www.hvacrnation.com.au | HVAC&R Nation | 17
THE NEXT
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Find out more today. Visit commercial.daikin.com.au or call us on 1300 368 300
18 | HVAC&R Nation | www.hvacrnation.com.au | July 2016
*Applies to 9, 11.2 & 14kW models
ARBS wrap
OUR BEST ON SHOW Opening the seminar program on day one of ARBS 2016 was a breakfast panel discussion o n the emerging WELL Building Standard.
Moderated by Norman Disney & Young’s Tony Arnel, this session set the tone for those presentations that followed – ranging from updates on Australian Standards to natural refrigerants, fan technology, and the phase-down of HFCs in Australia. There really was something for everyone.
GAME ON ARBS exhibitors took things to another level in 2016.
Who said fac e-to-face co mmunicatio 2016 exhibit n was dead? ion in Melbo The ARBS u rn e proved tha influence of t regardless social media of the and the inte opportunity rn e t, to network w nothing bea ts the ith peers and the country colleagues fr and across th om around e world. Sea n McGowan reports.
With fellow industry professionals looking on, it was game on for the nation’s top 10 refrigeration apprentices, who were given just 18 hours to demonstrate their skill and knowledge by completing four key tasks. The culmination of close to a year of hard work and dedication, the journey of each competing apprentice began at the WorldSkills Australia Regional Competitions held across the country, before a year of training led them to ARBS for a shot at the national title.
It promised to be a big one, and ARBS 2016 didn’t disappoint. As Australia’s only international air conditioning, refrigeration and building services trade exhibition, ARBS 2016 broke all records for both attendance numbers and exhibitors. Across three jam-packed days at the Melbourne Convention and Exhibition Centre, more than 8,700 industry members took in the sights and sounds of our industry on show – representing an overall increase of nearly 12 per cent on ARBS 2014. On the first day alone, almost 3,000 people filed into ARBS 2016 to find that a record 323 exhibitors had filled the cavernous exhibition space with the latest products, cutting-edge technologies and ground-breaking services.
Completed across the three days of ARBS 2016, each apprentice was vying for a chance to represent Australia as a Skilleroo at the 44th WorldSkills Competition to be held in Abu Dhabi next year.
Across three jam-packed days at the Melbourne Convention and Exhibition Centre, over 8,700 industry members took in the sights and sounds of our industry on show – representing an overall increase of nearly 12 per cent on ARBS 2014.
"We feel it's important to support the industry we're a part of," says director of sales at Heatcraft Michael Ryan. "It's important to encourage young people to achieve greatness, but also to realise that they're part of something much greater than what they do. The stronger our industry is at the grass-roots level, the stronger it will be longer term and more relevant to the country." Competitors were judged on the installation of a refrigeration system, the commissioning of an air conditioning system, refrigeration fault-finding and electrical fault-finding, with tools down called at 11.30am on the final day of the exhibition.
Immediately noticeable on entry was the effort some of the big brands had made to showcase their products in large, bright and welcoming exhibition spaces. “I thought that, particularly this year, the quality of the ARBS exhibition was excellent,” says ebm-papst’s general manager Simon Bradwell, M.AIRAH. “A lot of exhibitors really thought about what they were exhibiting – their new products and innovations – more than in any year that I’ve seen before.” And as has become customary at ARBS, there was plenty of food and drink on offer for current and prospective customers. Indeed, the number of baristas on the ARBS exhibition floor making coffee had some wondering if Melbourne’s famous laneway cafes had closed for the week!
Day one of ARBS 2016 also saw the commencement of the 2016 WorldSkills Australia National Refrigeration Competition, supported by the Australian Government and Heatcraft Australia.
Beyond the big players, hundreds of no-less-important smaller companies had taken significant effort with their exhibition spaces to present their products and services to the thousands of attendees.
After three intense days, the gold medal was awarded to Nathan McHugh, representing the Brisbane Region and TAFE Queensland SkillsTech (you can read HVAC&R Nation’s exclusive interview with McHugh on page 26).
Hours could be filled among the rows of exhibitors, who were only too willing to share information and explain how they were making a positive impact on our industry.
The Silver Medal was awarded to Hayden McColl, representing the South-West Queensland Region and TAFE Queensland SkillsTech; while the Bronze Medal was awarded to Matthew Cleave, representing the Sydney West Region and TAFE NSW South Western Sydney Institute.
Away from the crowds, the increasingly popular ARBS Seminar program was well attended, with a number of highly anticipated panels and guest speakers presenting across a wide range of topics.
As well as going on to represent Australia in Abu Dhabi, McHugh also won a trip to attend the Chillventa Exhibition held in Nuremburg, Germany later this year. July 2016 | www.hvacrnation.com.au | HVAC&R Nation | 19
➲ ARBS wrap PODIUM FINISH After a record opening day, day two of ARBS 2016 culminated in the bi-annual ARBS Industry Awards, which recognises the achievements of those in Australia’s air conditioning, refrigeration and building services industries. Hosted by popular actor and funny-man Shane Jacobson of Kenny fame, the awards were held for the first time at Crown Palladium to accommodate the hundreds in attendance. Now well entrenched in our industry, the awards attracted nominees from across all sectors of the industry. A panel of industry experts was given the heady task of evaluating the nominations based on various criteria including leadership, sustainability, performance and innovation. This year’s award winners included: The ARBS Young Achiever Award 2016: Leon Wurfel, M.AIRAH, managing director of BUENO The ARBS Product/Service Excellence Award 2016: Braemar 7 Star equivalent ducted gas heater – Seeley International The ARBS Project Excellence Award 2016: Westpac St. George HQ Refurbishment – Norman Disney & Young and Westpac Corporation
WorldSkills warriors. Australia’s best refrigeration apprentices battled it out across three days.
The Outstanding Industry Education/Training Award 2016: Diploma of Engineering Technology in Refrigeration & Air Conditioning – TAFE NSW Sydney Institute (Sydney TAFE) The bi-annual ARBS Industry Awards also represents an opportunity to recognise the achievements of leaders in the industry via the ARBS Hall of Fame, with nominations coming from key industry bodies. This year’s Hall of Fame inductees were Dr Stephen White, F.AIRAH, (nominated by AIRAH), Neil Marshall (nominated by AMCA) and Garry Mundy of AIRAH company member ActronAir (nominated by AREMA).
LOOK OUT SYDNEY After an absence from Sydney due to the redevelopment of Sydney’s Exhibition Centre in Darling Harbour, ARBS finally returns to the Harbour City in 2018 for its first exhibition in the newly developed space. If it’s true that absence makes the heart grow fonder, then ARBS 2018 will surely be the biggest and best yet. “We are confident 2018 will build on the very solid foundations from this 2016 and previous exhibitions,” says ARBS chairman Ian Hopkins, M.AIRAH. n
The AIRAH stand was abuzz throughout ARBS.
For fans of big fans.
ebm-papst was awarded the “Best Large Custom Stand”.
20 | HVAC&R Nation | www.hvacrnation.com.au | July 2016
ARBS wrap
Glitz and glam at the ARBS Awards Gala.
Mark “Tubby” Taylor spruiks his favourite AC company.
2016 broke records for exhibitor numbers.
The ARBS seminar program had something for everyone.
Building new networks.
Exhibitors parade their latest kit.
Tellies, tablets, and touchscreens lined the floor.
More than your average “trade show”.
July 2016 | www.hvacrnation.com.au | HVAC&R Nation | 21
When it comes to energy efficie
2012 AIRAH Awards Excellence in Innovation Finalist ActronAir Tri-Capacity
2013 AIRAH Awards Excellence in Sustainability Finalist ActronAir Tri-Capacity
2014 AIRAH Awards Excellence in Sustainability Winner ActronAir ESP Platinum
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22 | HVAC&R Nation | www.hvacrnation.com.au | July 2016
ency we know how to perform.
2013 AIRAH Awards Excellence in Refrigeration Research Finalist ActronAir Hercules
2014 Endeavour Awards Finalist ActronAir Hercules
2014 ARBS Industry Awards Winner ActronAir Hercules
Nothing beats performing under extremes. Engineered for Australia, you can trust ActronAir to be there when you need it most.
Mark ‘Frosty’ Winterbottom 2015 V8 Supercars Champion
That ’s better. That ’s Actron.
July 2016 | www.hvacrnation.com.au | HVAC&R Nation | 23
➲ Around the nation 2
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PLUMBERS PARADE THEIR SKILLS
This year’s World Plumbing Day (WPD) event held in Melbourne was the biggest ever, with over 450 people attending the industry forum, trade expo, and apprentice skills competition. The apprentice skills competition started at 7am and finished in the afternoon, demanding six hours of work by the competitors. The competition is an opportunity for leading apprentices to show-off their skills in plumbing and mechanical services in a practical demonstration. First place for the sprinkler fitting competition was awarded to Odin Daniels from the Services Trade College in Queensland, while the plumbing top prize was awarded to Dale Bux, who was nominated by his employer Trio Plumbing. Also part of the event was a keynote address from the Lord Mayor of Melbourne Robert Doyle. As a director on the Plumbing Industry Climate Action Centre (PICAC) Board, Doyle discussed just how important the issue of sustainability has been in his term as mayor. He connected the vital role training plays in keeping the plumbers of Victoria up to date with the latest technologies and systems. Planning for the 2017 event has already begun. For more information, please contact events@picac.vic.edu.au n
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HEATCRAFT’S HOT TICKET
Heatcraft customers Australia-wide were treated to a night of entertainment during ARBS 2016. The Heatcraft “Fire and Ice” cocktail event held at Crown Casino’s Studio 3 was aptly decorated in a Fire and Ice theme, with ice sculpture as the centrepiece. Customers were able to take in views over Southbank
and Melbourne's city skyline, while enjoying live music, entertainment, and anecdotes from special guest speaker Jeff "Thommo" Thomson –former Australian test cricketer, recently inducted into the Cricket Australia Hall of Fame. Also coinciding with during ARBS, Heatcraft hosted international guests Robert DelVentura (director, R&D, Heatcraft Worldwide Refrigeration) and Masood Ali (senior manager, mechanical engineering, Heatcraft Worldwide Refrigeration, US). DelVentura and Ali both presented at the ATMOsphere Natural Refrigerants Conference while in Melbourne. n
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WORKPLACE FATALITIES AT 20-YEAR LOW
The latest workers compensation data released by the NSW workers compensation authority shows a significant fall in death and injury rates in NSW workplaces. Released this year, the Statistical Bulletin 2013/14 for NSW workers compensation statistics published by SIRA shows that work-related employment injuries decreased by 8 per cent in 2013/14 and employmentrelated fatalities fell to their lowest level since 1987–1988. “The NSW government is committed to driving down injury rates and improving workplace safety and productivity,” says SIRA chief executive Anthony Lean. “An increased focus by SafeWork NSW on advisory services, education and assistance through workplace visits, campaigns and industry programs has led to an improvement in workplace safety.” The findings also suggest that the fall in injuries benefits business through a healthier workforce and reduced workers compensation premiums. This is demonstrated by the 17 per cent fall in premiums on average since 2012 and the continuing fall in standardised premiums. n
24 | HVAC&R Nation | www.hvacrnation.com.au | March 2016
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HIGHWAY JOB HUNT
An unemployed air conditioning technician in Victoria has “hit the road” in order to find himself work. As part of his job hunt efforts, Elliot Bradbury spent two morning on the side of the Princes Highway holding a cardboard sign, which read "3rd year electrician looking for work". According to Bradbury, he’d been let go from his previous job as an air conditioning tech due to the lack of demand going into winter. A third-year apprentice, he has one more year of training until he can complete his final exam to obtain an A-grade licence that allows him to work for himself. "I had gone around to job sites looking for work and tradies were often abrupt and rude telling me there was nothing," says Bradbury. "I tried applying for work through job websites, had sent out countless resumes, and had tried cold-calling workshops. It was pretty depressing." Unknown to him at the time, a passing driver had called a local radio station to let them know of Bradbury’s efforts. Shortly after speaking on an on-air interview with the radio station, he was offered a job by a listener. n
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AHI-CARRIER UNITES
United Technologies has acquired the commercial HVAC product sales and commercial service divisions of AHI-Carrier Australia. The newly acquired organisation will conduct business as Carrier Australia Pty Ltd (Carrier Australia), a part of UTC Climate, Controls & Security, and a unit of United Technologies Corp. “We’re excited about the opportunities this will bring,” says managing director John Sherry. “For Carrier Australia, the acquisition will facilitate closer
Around the nation 6
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collaboration as well as more direct access to UTC Climate, Controls & Security’s global resources in terms of products, engineering, sales and marketing initiatives. The remaining residential, light commercial and Totaline parts business segments have transferred to a new entity, AHIC (Australia) Pty Ltd, which will continue to be owned by AHI-Carrier FZC. n
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FAB FIVE SCORE TRADE SCHOLARSHIPS
Five TAFE students and their teachers have been selected as the winners of the inaugural Industry Educational Trade Scholarship – partnered by ARBS, AMCA and AREMA. The scholarship aims to increase opportunities for students studying commercial refrigeration and air conditioning, and provide professional development for teachers. All hailing from NSW and Queensland, the winners commenced the first week of a two-week residential course at the Refrigeration and Climate Control Centre of Excellence (RCCC) in Melbourne in late June. They will return for a second week of study from September 9. The RCCC is a partnership between AMCA and Box Hill Institute. It aims to ensure that recipients of the scholarship are exposed to the latest technological advances for HVAC&R. The student winners (all third year apprentices) are: Hayden Burgess from Ultimo TAFE Sydney NSW; Daniel Johnson from TAFE QLD SkillsTech; Christopher Savovski from Ultimo TAFE Sydney NSW; Jesse Judge from Ultimo TAFE Sydney NSW; and Lachlan Faint from Ultimo TAFE Sydney NSW. The scholarship embodies eight key units of competency from the Master Refrigeration program developed by AMCA. Box Hill will enrol all students and award a Statement of Attainment for each unit completed. AMCA will provide a Master of Refrigeration certificate for those students who complete all eight units.
“The judges were very impressed with the quality of entries we received,” says president of AREMA Mark Padwick. “Through their applications, the students all showed a positive attitude, keenness to learn and demonstrated real aptitude to successfully complete their trade training.” n
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VICTORIANS WARM TO WOOD
A recent survey has found that one in six Victorian homes still burn firewood for heating and woodstoves. In the last 10 years, the use of firewood has experience a slight decline, but it still remains a popular heating choice among Victorians. In fact, in Gippsland and outer eastern Melbourne, the use of firewood is increasing in popularity. The Victorian government this year warned that firewood supplies were at dangerously low levels, particularly in red gum areas in the north of the state. To combat this, the government says it will drop the wood-collecting permit system adopted in 2011. “The decline of firewood supplies is a serious issue for many communities, especially along the Murray River,” says environment minister Lisa Neville. “That’s why the government is working with the local community and commenced the Northern Victoria Firewood and Home Heating Project, which aims to work with communities to identify energy sources other than red gum firewood.” Neville says the main priority is to ensure communities reliant on firewood can continue to access it. n
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AC UNIT IGNITES HUGE BLAZE
More than 100 firefighters worked across two days to extinguish a fire at the Haverick Meats factory in Sydney. The fire is believed have started in an air conditioning unit.
A forensic investigation is yet to confirm the cause of the fire, but authorities aren’t treating it as suspicious. According to firefighters, the fire looks to have spread from the AC unit through to the factory's refrigerated wall panelling. "Our advice is that the fire started in a compressor that is adjacent to one of the cool rooms," says superintendent Paul Bailey from Fire Rescue New South Wales. Bailey says that the blaze proved very difficult to control because it was burning inside the insulated panelling, which caused the building to cave in. “As you can understand, it's a very dangerous and difficult scenario, with the roof collapsing and the potential collapse of the walls,” he says. "The firefighters did a great job getting that fire out." About 50 people were evacuated from the building after the fire broke out. There were no casualties. n
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BONDOR’S BIG INVESTMENT
Bondor/Metecno has announced a $20 million dollar investment in a state-of-the-art production facility in Campbellfield, Melbourne. Due to open later this year, the establishment of the 20,000m² factory comes at a time when other manufacturers are either closing down or relocating offshore. The company says the factory is a win for locally manufactured products, as it will facilitate a significant increase in manufacturing capacity and allow the product range to be manufactured closer to the important markets in southern Australia. “We are pleased to invest in this project. Not only will it allow us to enhance our service and product offering to our customers, but it also demonstrates our commitment to the future of Australia’s manufacturing industry and the Australian economy,” says Bondor/Metecno’s general manager Geoff Marsdon. “The factory will primarily produce polyisocyanurate (PIR) lightweight, thermally efficient, fire-retardant products.” n
July 2016 | www.hvacrnation.com.au | HVAC&R Nation | 25
➲ July exclusive
FRESH-FACED FRIDGIE’S FIRST-PLACE FINISH The 2016 World skills Australia N ational Refrigera Competition sa tion w Queensland’s Nathan McHug take on nine of h the finest refrig eration appren in the country a tices nd prove himse lf as the nation’s Following his w best. inning perform ance, McHugh with HVAC&R N caught up ation to chat ab o u t his life-changin experience and g how the comp etition rewarde him with more d than just a shin y gold medal. HVAC&R Nation: Nathan, how did you first get involved in the industry? Nathan: I was always mechanically minded, being involved with motorsports and tinkering in the shed after school. So when choosing my career path, I decided it had to be mechanical and electrical – so refrigeration had everything to offer.
they look for when employing a tradesman and thrive on making sure I succeed all those criteria. My parents have been fantastic in allowing my exposure to all elements of the business and by never treating me like the boss’s son. An extended vacation or sick day for me was never an option.
Do you believe the pathway you’ve taken is the best way to get started in the industry? “There is no better way to enter any industry. If I was to give advice to any young person who wanted to get a start, I would say “choose something you enjoy doing and are passionate about, grabit with both hands”. You should surround yourself in trade knowledge and you will always be successful in your career.
What do you enjoy most about your job? The thing I enjoy most about my job is no two days are the same. Being a young trade compared to some, it is continuously evolving, giving me immense opportunity to learn new things. I have been fortunate enough not only for my father to be able to provide me with an opportunity to complete my trade within his business at DTM Air but have been mentored by an expert within the HVAC&R Industry. My father Darren started DTM Air in 2004 when the feedback from clients, other tradesman
We hear your family has quite the background in the HVAC&R industry. Tell us a bit about that. I’m not only fortunate enough to have my father provide me with an opportunity to complete my trade within his business at DTM Air, but also have the opportunity to be mentored by an expert within the HVAC&R Industry. My father Darren completed his apprenticeship in 1987 and attended SkillsTech, the same TAFE Institute I have just completed my training through. He worked within the industry specialising in commercial installations. He took a big risk and started DTM Air in 2004 in Jimboomba. He worked primarily on commercial installations, which led to many successful contracts working with construction companies and government projects. My grandfather was a panel beater by trade so we can attribute our mechanical aptitude and interest to my grandfather Trevor.
In what ways has this benefitted you most in your career to date? Working within the family business has not only exposed me to the technical components of my trade, but also provided many opportunities to understand managerial components of running a successful business. I have an understanding of what qualities 26 | HVAC&R Nation | www.hvacrnation.com.au | July 2016
McHugh poses with mum and dad following his big win.
July exclusive Training Institute: TAFE Queensland SkillsTech Qualification: Air conditioning and refrigeration mechanic. Experience: Just out of trade. National Worldskills Result: National Gold Medallist.
being part of Worldskills will allow your career to prosper, showing future employers your dedication to the trade and that you can achieve greatness.
What are the biggest challenges for young HVAC&R apprentices? Every apprentice is going to have ups and downs – we all live and learn as they say. I think if you have passion for the industry, you will see that everything you put in comes back to you ten-fold. No one said being an apprentice was easy, but put in the hard yards and you won’t regret a thing.
What advice would you give to someone who’s just starting out in their apprenticeship? WorldSkills competitors are required to draw upon a wide variety of skills.
and his employer suggested his skill and knowledge within his field would ensure his success. With a young family to support, Dad took a chance and started to develop DTM Air. He was primarily working on commercial installations, which led to many successful contracts working with construction companies and government projects. My grandfather, Dad’s father, was a panel beater by trade so we can attribute our mechanical aptitude and interest to my grandfather Trevor McHugh.
easy, as I believe SkillTech Acacia ridge produces some of the best refrigeration technicians in Australia, but I put in everything I had and pulled it off – like Carl said I could. From there I was invited to compete at Nationals in Melbourne at ARBS.
I understand the risks associated with fee for supply and service industries and the importance of how only high-quality and professional service will allow for success within the HVAC&R Industry.
It was four parts broken down over three days of competition – major install (small chilled water system), decommission recommission of an air conditioner, electrical fault finds, and a refrigeration fault finds. The competition tested my mental and physical skills, and was one of the toughest obstacles I’ve overcome. I believe the hard work and dedication I put in allowed me to not crack under the pressure.
What is Worldskills? Worldskills was a chance to showcase my skills. Being up against the finest up-coming apprentices in Australia and being tested across a wide range of different skills in a pressure-cooker environment – it’s been absolutely life changing. I owe a lot to the support I received from my fellow competitors, family, and mentor Carl Balke from TAFE Queensland SkillsTech.
Tell us a bit about the how you first heard about Worldskills? How did you get selected to be part of competition? I first heard about Worldskills in my first refrigeration block at SkillsTech Acacia Ridge, from my teacher Carl. He said to me, “go home look up Worldskills and start putting as much effort into your learning and training as you do to being a class-clown and you can pull it off.” From this point I decided I could be good enough. So I started to engage in class to absorb as much information as I could. I knew it wasn’t going to be
What was the structure of the competition? What were you tested on?
I believe I learnt the most by being out of my comfort zone and being surround with a wealth of knowledge. So any chance you get to do something different, grab it with both hands and take every opportunity to learn from it. Train at a respectable TAFE Institute to learn about the things you won’t see in your day-to-day environment. SkillsTech is an amazing TAFE, with amazing teachers who go the extra mile to ensure your knowledge and skills are impeccable. I believe you shape a good tradesperson by teaching the correct skills from the very start.
Would you recommend other apprentices get involved in the Worldskills Australia competition? Of course. It was such and eye-opener. Win, lose or draw, there is nothing negative about the experience. It’s changed my life and opened up many doors for me that I never knew existed before.
What advice would you give them to excel?
What do you feel is your strongest skill when it comes to refrigeration? I am lucky to work for a very diverse company, so we do a wide scope of work. I am continuously doing different tasks. I believe my strongest skill is being able to think quickly and adapt to new situations – this is what helped me achieve my results in Worldskills
Now that the competition is over, how has the whole experience assisted you – both personally and professionally? With Worldskills, there is nothing negative with being involved – you meet other great people, learn new skills, and get to show why you are so passionate about your career. When the competition is all said and done, it’s an experience you will never forget and you’ll have new mates for a lifetime. I believe
Preparation is the key. Testing yourself and pushing yourself to the max will help you learn and understand your trade better. It is also important to ensure you have support from your TAFE, employer, family and friends. Put in 110 per cent and no matter what the result, you will be proud of your achievement and have a newfound confidence to take on the world.
What are you plans for the future in HVAC&R? I have just started my electrical apprenticeship, which will enhance my career opportunities. I have a diploma of air conditioning and refrigeration in my sights. Once I have completed this, I might look into a sea change and move into a large plant or supermarkets –I find that equipment interesting. I love this industry and can’t see myself moving away. I am always looking to learn more and love taking in new information and skills everyday. n
July 2016 | www.hvacrnation.com.au | HVAC&R Nation | 27
➲ Fly Guy
A RESPONSIBLE “MATE” Choosing the night’s designated driver just got easier.
via the companion app, which also lets you connect with your friends to see who is the most sober – sorting out the night’s designated drivers in the process. The device uses a semiconductor-based sensor, which is accurate to +/- 0.01 per cent.
How many have I had? Was it two beers and two bourbon and cokes? Was it three? Admittedly, we’ve all been there. We don’t need to tell you that driving over the limit is never a good idea. However, the team at DrinkMate understand that figuring out whether you are or not isn’t the easiest of tasks – and they’re here to help.
The unit is powered by your phone, so no separate battery is needed for the device. The design has no mouthpiece – making it both compact and hygienic when shared. Simply blow into the device to get an instant reading.
The DrinkMate is a pocket-sized breathalyser that offers an accurate reading via your smartphone. The breathalyser attachment is discreet, measuring less than 5cm long, and works to test your blood alcohol level whenever you’re in doubt.
You never know, the DrinkMate could save you a few months without your licence (or potentially, your life and others’ . . . ).
It works by simply plugging into your phone and displaying your blood alcohol rating on the screen
DrinkMate is available now and can be ordered at www.getdrinkmate.com n
new 500lt/min Vac Pump Features - Huge 500lt/min flow rate - Suitable for large refrigeration plants, supermarkets and chillers - Single phase 240v 50hz - Convenient trolley mount - High flow 3/8 refrigeration fittings - Other connection configurations available on request
contact to order www.javac.com.au 1300 786 771
28 | HVAC&R Nation | www.hvacrnation.com.au | July 2016
sales@javac.com.au
AIRAH and industry classifieds EVENTS Brisbane Trade Night AIRAH Trade Nights are a great opportunity to broaden your networks and see the HVAC&R industry's latest innovations. Date: Thursday, July 7 Time: 4.00pm to 7.00pm Venue: Royal Int. Convention Centre, 600 Gregory Terrace, Bowen Hills
Western Sydney Trade Night AIRAH Trade Nights are a great opportunity to broaden your networks and see the HVAC&R industry's latest innovations. Date: Tuesday, July 26 Time: 4.00pm to 7.00pm Venue: Parramatta Leagues Club, 13–15 O'Connell St, Parramatta
Central Sydney Trade Night AIRAH Trade Nights are a great opportunity to broaden your networks and see the HVAC&R industry's latest innovations. Date: Tuesday, July 26 Time: 4.00pm to 7.00pm Venue: Luna Park, 1 Olympic Dr, Milsons Point
FREE Classified Ads
Humidity Issues in Australian Climates Workshop 2016
Join AIRAH for the Humidity Issues in Australian Climates Workshop 2016 on August 3 in Sydney. Date: Wednesday, August 3 Time: 8.30am to 4.00pm Venue: The Mint, 10 Macquarie St, Sydney NSW 2000 Cost: Members $295, non-members $395, student members $195, student non-members $295
Cairns Trade Night AIRAH Trade Nights are a great opportunity to broaden your networks and see the HVAC&R industry's latest innovations. Date: Tuesday, August 23 Time: 4.00pm to 7.00pm Venue: Pullman Resort Casino, 35–41 Wharf Street, Cairns
Townsville Trade Night AIRAH Trade Nights are a great opportunity to broaden your networks and see the HVAC&R industry's latest innovations. Date: Thursday, August 25 Time: 4.00pm to 7.00pm Venue: Pullman Resort Casino, 35–41 Wharf Street, Cairns
Crown Towers Site Visit – WA
TRAINING Ammonia Industrial Plant Operations – Vic AIRAH provides dedicated industrial ammonia refrigeration training that has been researched and developed by industry users to meet the specific needs of staff working in and around ammonia plants. Date: July 18 to July 20. Venue: Oxford Cold Storage, Laverton Cost: Members $2200, non-members $2800.
Join AIRAH on a site visit to the new Crown Towers resort. It will be Perth's largest hotel development and Perth's first 6 star luxury hotel. Date: Thursday, July 21 Time: 3.15pm registration, for a prompt 3.30pm start to 5pm followed by light refreshments Venue: Great Eastern Hwy, Burswood (meeting location TBC) Cost: Free for members, $55 for non-members.
Ammonia Emergency Response – Vic AIRAH provides dedicated industrial ammonia refrigeration training that has been researched and developed by industry users to meet the specific needs of staff working in and around ammonia plants. Date: July 21 Venue: Oxford Cold Storage, Laverton Cost: Members $800, non-members $900.
Whether you are looking, selling, trading or tendering – HVAC&R Nation classifieds is the best way to spread the word! HVAC&R Nation is offering a free industry classified service! Send in your submissions, text only – no images or logos. Send your submissions to: boon@airah.org.au or c/o AIRAH, Level 3, 1 Elizabeth St, Melbourne 3000.
July 2016 | www.hvacrnation.com.au | HVAC&R Nation | 29
➲ The Lighter Side 1 WINNER
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CHEF’S SPECIAL
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This unit at an old restaurant had no insulation on the pipes. To stop condensation from hitting the floor, the head chef whipped up this. Spotted by Callum from Victoria. n
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CRATE-ING MORE PROBLEMS Harrison from Queensland found this improvised bracket at a hardware store of all places. n
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PECULIAR PIPE Called to a job in WA, Ben discovered this tin roof had no screw holes near pipework/ interconnects. Apparently, this has been the set-up since the house was built! n
NOT-SO-QUIET AS A MOUSE Walter from NT was called to a job to investigate an uncharacteristic vibrating sound in the cassette unit. Unfortunately for this little guy, he was the cause of the problem. n
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FLUFFING ABOUT A fresh-air fan was blowing down through the slab. The filter is on the discharge side of the fan, and the client was wondering why it wasn’t working. “The fan was full of lint!” says Paul from Queensland. n
HAVE YOU COME ACROSS SOMETHING SCARY, UGLY OR JUST PLAIN FUNNY? If your entry is deemed the monthly winner, a bottle of Jim Beam bourbon 750ml will be on its way to your door. Please include a postal address with your entry. Entrants must be aged 18 years or over. Send your submissions to editor, Boon Mark Souphanh boon@airah.org.au
30 | HVAC&R Nation | www.hvacrnation.com.au | July 2016
ACTROL THE HOME OF TECUMSEH
actrol.com.au July 2016 | www.hvacrnation.com.au | HVAC&R Nation | 31