IRHACE Journal - Apr 2022

PREVENTING LEGIONNAIRES’ DISEASE FROM COOLING TOWERS AND EVAPORATIVE CONDENSERS

Econex R32 Inverter Rooftop Packaged

Nominal cooling capacity range between 25.5kW and 55.6kW

Up to 79% reduction in refrigerant related Global Warming Potential compared with current R410A models

Unit footprint reduced by up to 20% when compared with current models

Wide ambient operation range with cooling up to +52°C and heating down to -15°C

Up to 77% increase in season energy efficiency (TCSPF) when compared with comparative non-inverter models

EC Plug Fan and EC condenser fans for efficiency and precise fan speed control

Dual Electronic Expansion Valves

This fact sheet provides advice to persons conducting a business or undertaking (PCBUs) who have cooling towers or evaporative condensers (cooling plant).

PUBLISHER

IRHACE/CCCANZ/RLNZ

IRHACE: www.irhace.org.nz CCCANZ: www.cccanz.org.nz RLNZ: www.rlnz.org.nz

EDITOR

HVAC&R Centre admin@irhace.org.nz

MEMBERSHIP admin@irhace.org.nz admin@cccanz.org.nz

REFRIGERANT LICENSING & COURSES admin@rlnz.org.nz

ADVERTISING admin@irhace.org.nz

DESIGN

Bellacreative Ltd

HVAC&R CENTRE

PO Box 217184 Botany Junction 2164 Auckland, New Zealand

e: admin@irhace.org.nz e: admin@cccanz.org.nz e: admin@rlnz.org.nz

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.

ISSN 01148257

MARK MEYER

IRHACE President

Our first webinar was run live on Thursday 24th March and was a huge success. The subject “Designing with Ventilation Louvres” was presented by Simon Hoyle from Ventuer. Attendees described this as very informative and if you missed this live, then you can view the recording via our online library.

The attendees of this webinar were the first to earn CPD points via the IRHACE CPD programme. Remember to register for all the upcoming webinars so you can gain benefit from our technical education program.

With the change in setting to the orange light, we should see the return of regional events across New Zealand. Christchurch branch ran their annual Golf Day at the Kaiapoi Golf Club under covid rules in mid-February. Read the full report in Our People section.

Special mention to our hard-working IRHACE Council and CCCANZ Board who give us hours of volunteer time for the betterment of our industry:

IRHACE Council – Ashwin Patel, Pat Kilduff, Paul Shaw, Vikrant Bhatt, Matt Birch, Mark Meyer.

CCCANZ Board – Malcolm Miller, Garry Ko, Greg McCarthy, Brendan Clarkson, Phil Mohan, Mark Hoskin, Gary Reily.

AHL Series Acoustic Louver

The AHL Series offers an attractive louver system that provides both ventilation and sound attenuation. Based on Holyoake’s proven louver technology, the AHL Series has been designed to ef rough the facade of a building while reducing radiated noise.

AHL Series

Holyoake presents the AHL-150, featuring an attractive louver system that provides both ventilation and sound attenuation.

Built with Holyoake’s proven louver technology, the AHL-150 is

to pass through the facade of a building while reducing radiated noise. Optional acoustic traps that

available for applications requiring additional attenuation.

The acoustic insulation used in AHL Series louvers has been engineered to maximise sound absorption and minimise moisture absorption. Even when exposed to an atmosphere of 50˚C at 90% relative humidity for four days, it s howed a moisture absorption by weight of less than 0.03%.

Features of the AHL Series include:

+ High attenuation performance.

+ Add-on acoustic traps for increased performance.

The AHL Series is suitable for applications where noise can be disruptive to families and businesses and is an effective sound barrier in high-density areas.

AHL-150 shown with optional rear acoustic traps

IRHACE APPOINTS PRESIDENT ELECT

The IRHACE Council are pleased to announce the appointment of Pat Kilduff to President Elect as per 15.2 of the constitution.

Pat brings a wealth of experience to this role with his own consulting company Celsius Consulting; has been a M.IRHACE for 20 years; M.ASHRAE, M.AIRAH; and is a previous trustee on the RLNZ Board.

He will take up the role of President Elect through to the AGM in 2023, when he moves into the President Role and Mark Meyer moves to Immediate Past President. His portfolio changes to membership with the technical education portfolio moving to Matt Birch.

Congratulations to Pat Kilduff on his appointment.

RLNZ TRUSTEE APPOINTMENT

IRHACE has appointed a second IRHACE representative of Matt Birch to the RLNZ Board.

Matt was one of the original trustees for the IRHACE Training Trust which became RLNZ; has been an M.IRHACE for 31 years; previous Auckland Branch Chair; and is the Training Manager for BDT in Christchurch.

Matt continues in his role on the IRHACE Council with the technical education portfolio. Congratulations Matt Birch on your appointment.

The RLNZ Trustee Board consists of Matt Birch as Chairperson; Brendan Clarkson as Deputy Chairperson, Dave Nicholls Trustee IRHACE Representative and Paddy Durham Trustee CCCANZ Representative.

VEHICLE & TECHNOLOGY PROJECTS

• Fonterra will operate NZ’s first electric 46T milk tanker with battery-swap technology at the Waitoa Depot, near Tauranga.

• Bayes Coachlines will build a passenger bus with solar panels providing 5-10% of its own power and designed to have greater range and less maintenance than other electric buses.

• MyFleet Rural will launch four Pickman 4WD, fully electric off-road UTVs throughout NZ at Field Days and A&P Shows.

• Firth Industries will deploy NZ’s first electric battery-swap concrete mixer truck, to operate in Penrose.

• IntDevice will work with Auckland Transport to deploy a wireless charging ground pad solution at the Ti Rakau Drive depot for an Auckland Transport bus.

• Kiwi H2 Ltd has exclusively licensed a commercialised dual fuel product from the UK, which converts diesel vehicles to run on 40% hydrogen, aiming to save 40% emissions. This will help fleets decarbonise until commercially available and viable 100% zero emission options are available in NZ. They will convert 2 trucks to use this technology in this project.

• Zenobe Australia will supplement DC charging capability in grid-constrained areas by installing second-life electric bus batteries.

Pictured: Carr & Haslam’s new e-canter, which was co-funded under the Low Emission Vehicles Contestable Fund

RATE YOUR BUSINESS

Want to know how your business is tracking against industry benchmarks? A new BizRate Tool is being developed by the industry for the industry—helping you find out what ‘good’ looks like for your business. Learn more about this valuable new resource in our Q&A with Grant Price, President, NZ Specialist Trades Contractors Federation.

Specialist trade businesses will be able to log in to the BizRate Tool to anonymously enter their business performance data and receive an industry benchmark report on an annual basis.

Grant Price is President of the Specialist Trade Contractors Federation, and was the Establishment Chair of CCCANZ

Q: What exactly is the BizRate Tool?

A: It’s an online tool for specialist trade businesses, who can anonymously enter their financial, commercial, and operational performance data to receive a report, benchmarking their business against industry-wide targets.

The report will give a clear understanding of what a ‘good’ construction business looks like – helping you measure how well your business is performing against a wide range of criteria.

The report will help your business:

• Spot problems, so you can identify improvements

• Compare your business with other businesses in the same sector

• Measure and evaluate the effectiveness of changes in business functions and processes on your overall performance.

Once you receive the report, the BizRate Tool will provide links to a knowledge library where you can find resources to help you build capability and further develop your business.

Q: Is it confidential?

A: The data you enter and the report you receive are completely confidential. Your data belongs to you, and you have the right to ask to see what the system has, as well as to be removed from the database.

Only the system administrators at PwC will be able to access the data so they can provide help for your business, if required.

Industry associations, such as CCCA, Master Plumbers, Master Electricians, Steel Construction, will be provided with an anonymous industry-level report, so they can identify overarching sector trends and focus areas, but no individual businesses will be mentioned. Your privacy is assured.

Q: Who’s behind it?

A: The BizRate Tool is a collaboration between numerous specialist trade associations. It is funded by the Construction Sector Accord and delivered by PwC.

The Construction Sector Accord has supported the development of the tool because it aligns with its goals to foster sustainable, resilient, and successful construction businesses.

Many people working in the specialist trade sector does a great job, but most acknowledge they could improve how they look after their finances and manage risks. A similar, successful programme is already available to the vertical construction sector.

Q: Is it free?

A: There is a small annual fee to input your data and receive your yearly report.

Q: How do I take part?

A: The programme is moving into its pilot phase and we are keen to get CCCA member businesses involved in this pilot.

NZ STCF are offering the first 25 users free access to the Datakit tool, where you can input your data anonymously to receive a report for your business. Please email admin@ccca.org.nz to register your interest. The BizRate tool is expected to officially launch within the next three months.

WHAT DOES ‘GOOD’ LOOK LIKE? ARE YOU A TEN?

Construction businesses are facing a barrage of challenges, making it more crucial than ever to have a sustainable, resilient business. Without an industry benchmark, it can be hard to know what ‘good’ looks like –which is why the BizRate Tool has been developed. BIZrate could eventually develop into an industry accreditation tool.

AIRAH’S 2022 CONFERENCES CALL FOR SUBMISSIONS

AIRAH has announced a full slate of events programmed for the coming 12 months. Fulfilling its remit to share best-practice HVAC&R and related knowledge and information with as wide an audience as possible, the events calendar includes conferences, forums, technical seminars, and Industry Nights across Australia in 2022.

“AIRAH events provide tremendous opportunities to learn about the latest developments in the industry, and build professional networks,” says AIRAH CEO Tony Gleeson, M.AIRAH. “Whether they are virtual, physical or hybrid, our conferences aim to gather the industry’s best minds and practitioners to share information and raise standards.”

AIRAH’s 2022 suite of events covers a broad sweep of knowledge areas that exist within HVAC&R and building services. Highlights are the Australasian Building Simulation conference in Brisbane in July and AIRAH’s flagship event, The Future of HVAC 2022, slated for Melbourne in September.

Organised by AIRAH’s Commissioning Special Technical Group, the Commissioning Virtual Forum 2022 brings together leading industry experts, and allows attendees to connect with peers while learning about properly functioning and performing buildings. The Forum will take place virtually on March 24.

Meanwhile, AIRAH’s annual Refrigeration Conference has a new format for 2022, with an education session for refrigeration services contractors on day one, followed by technical presentations on day two. The event will be held in person in Sydney over May 16–17, with live-streaming options for those who wish to attend remotely.

The Big Data and Analytics Forum 2022 will be held on June 23 in Sydney. This in-person and virtual event looks at how to drive value out of data. Industry experts will share lessons learnt, and discuss the future of big data and analytics for applications in the built environment.

Presented by AIRAH and IBPSA Australasia, the Australasian Building Simulation scientific conference explores simulation’s contribution to carbon- and climate-responsive outcomes, both at building and precinct scale. It will be held as a hybrid event, with in-person and live-streaming options available for attendees either in Brisbane over July 20–21 or online.

AIRAH’s flagship conference, The Future of HVAC 2022, brings together leaders from the built environment to discuss the impact global forces are having on the future of the HVAC industry. The event will be held in person in Melbourne on September 7–8 and online.

At the always-popular Building Physics Forum, building physics experts will explore ways to control heat, air and moisture flows across the building envelope to deliver better indoor environmental quality. AIRAH’s Building Physics Forum 2022 will be held as a hybrid event – live-streamed but also live in Sydney on October 12.

AIRAH’s Western Australia division curates the WA HVAC&R Emerging Trends Symposium. As ever, in 2022 this day of discussion will investigate emerging trends, and where the HVAC&R industry is heading. The Symposium will be held as an in-person event on November 8 in Perth.

For information about speaking at any of these events, go to:

INTERNATIONAL DICTIONARY OF REFRIGERATION

The International Dictionary of Refrigeration is the result of the work of nearly 200 experts, all members of the IIR network from approximately 30 countries on all the continents.

Since 2020 and the updating of the definition of 5 crucial terms in the International Dictionary of Refrigeration, all professionals in the field of low-temperature technologies are called and strongly recommended to comply stricly with the 5 internationally established definitions, endorsed by the International Institute of Refrigeration and the ASHRAE for the following words: cooling, refrigeration, chilling, freezing, and cold chain.

The Dictionary includes more than 4,300 terms in English and in French, including 800 synonyms about 3,500 definitions in English and in French translations in 11 languages: Arabic, Chinese, Dutch, English, French, German, Italian, Japanese, Norwegian, Russian and Spanish a total of approximately 43,800 terms and their synonyms.

These terms and definitions are relevant to all domains in the refrigeration field

Fundamentals (thermodynamics, heat and mass transfer...)

Refrigeration production (refrigeration systems, refrigerants...)

Refrigerating equipment

Cooling, chilling and freezing methods

Storage, transport and distribution

Refrigeration of perishables products and food industry

Air Conditioning

Heat pumps

Cryogenics

The environment etc.

HAVE YOU CONSIDERED BECOMING A REGISTERED ENGINEERING ASSOCIATE (REA)

A Registered Engineering Associate is an experienced senior engineering technician / technologist that has been acknowledged with REA which is an internationally recognised credential.

The New Zealand Institute of Refrigeration, Heating and Air Conditioning Engineers (IRHACE) is one of the associations recognised under the Engineering Associations ACT 1961.

It is important to understand REA is not a membership of an organisation, but a credential recognising an individual technician or technologists training, experience, knowledge, positions of responsibility held and any appropriate qualifications, that if determined by the EARB Board to be acceptable can then allow that individual to be registered as a Registered Engineering Associate under the Engineering Associates ACT. Therefore, the REA credential carries weight and responsibility.

For an Individual, REA provides registration and standards for engineering technicians and technologists, it is a statutory mark of quality that is Internationally recognised and encourages continuous education and competency development.

For the Employer REA provides a time tested internationally recognised benchmark, establishes a hierarchy for management delegation levels for quality and cost control, reduces risk with greater control and accountability in your processes and matches tasks against personnel competency and experience. Additionally, REA fosters ethical standards within a business and industry and be valuable with developing career pathways, training goals and succession planning.

REA can also recognise prior learning for Immigrants moving to and working in New Zealand.

Glynn Cowley F.IRHACE

I have been the IRHACE representative on the EARB Board since 2012. REA has been around a long time and IRHACE has from the early days been a Recognised Association but over the years there have only been a small number compared to the total number of IRHACE members that have attained REA.

It is not that experienced technicians working in our industry would not qualify but perhaps because REA has not had the profile perhaps it should in our industry, or as it is a credential that is not a requirement for an individual or a company to perform their day-to-day activities it has been overlooked or undervalued.

“The REA credential under pins an applicants confidence, competence and willingness to take on technical challenges. This has been recognised by multi national customers and helped me secure free lance refrigeration system commissioning contracts for some of the largest projects in the world”.

Joseph Poff, Technical Manager, Temperature Control Solutions Ltd.

Companies may want some senior staff to hold a credential that is part of an internal framework for a more robust delegated authority for sign off on certain types of equipment servicing or installation.

Many in our industry will have trade certificate or higher qualification, but there are some that for various reasons lack a formal qualification, but have worked in the industry, have knowledge, experience and have held positions of responsibility but do not have a qualification or credential to formally endorse this.

They could be an immigrant to New Zealand and are unsure if any qualification or training they have had overseas is recognised in New Zealand. In such cases if those individuals can prove they have appropriate training, experience and held a position of responsibility for the required time then REA might be attainable.

The REA credential could be of tangible value to our industry.

Applying to become REA is open to a technician who can meet the criteria. Being a member of IRHACE is encouraged but not a prerequisite.

I would encourage you to go to the EARB website for more information. Below is an extract from the website showing the criteria for Registration under the A, B and C designation. It is unlikely these days anyone would be considered under (A) but if you have an NZCE then (B) is an option.

I think however there would be a number of Technicians working in our industry that could look closely and potentially qualify under the (C) category.

Required Qualifications for Registration as REA

Section 11 (1) of the Act specifies the criteria for registration. Applicants must be EITHER:

a) Born before the 1st January 1936, with a basic engineering training plus at least 12 years of engineering experience, including a minimum of 6 years in positions of responsibility in relation to engineering work, OR

b) Hold a NZ Certificate of Engineering or a First Class Marine Engineer’s Certificate or an equivalent qualification approved by the Board. The minimum engineering experience comprises a basic engineering training plus at least 6 years of engineering experience, including 1 year in positions of responsibility in relation to engineering work, (i.e., around 10 years engineering experience), OR

c) Have a basic engineering training, plus at least 12 years of engineering experience including a minimum of 6 years in positions of responsibility in relation to engineering work. An applicant in this (c) group will be requested to submit a written statement of at least 4,000 words demonstrating an expert knowledge on an engineering topic approved by the Board.

Registration under (a) was for persons who in their younger days did not have the opportunity to carry their education to the standard expected and required today, but have, by experience and ability in industry, attained positions of high responsibility in the engineering field.

For registration under (c), applicants must satisfy the Board that they have achieved a standard of knowledge and experience warranting registration. Further information on these requirements is provided in the registration pack.

‘Responsibility’ is the extent to which an applicant carries the responsibility for personal decisions and the actions of others. This could apply to solving technical problems, technical management, engineering design, or be related to education and research. The Board is the sole judge of “adequate responsibility” for registration.

To maintain and improve the quality of technical engineers within the engineering industry, the Board considers the formal recognition of technical academic qualifications, the related technical training, and the competency advances of technical engineers through experiential development. The Board utilises a peer review method for ascertaining competency and proficiency of candidates.

IRHACE Members who hold

REA

as at 20 Jan 2022

Name IRHACE Discipline

Owen Burgess M.IRHACE Mechanical

Gavin Calder M.IRHACE Mechanical

David Duffy M.IRHACE Heating Ventilating Air Conditioning & Refrigeration

Brian Glucina M.IRHACE Mechanical & Production

Stuart MacKenzie M.IRHACE Refrigeration

Joseph Poff M.IRHACE Heating Ventilating & Air Conditioning

Alan Strawbridge M.IRHACE Mechanical

Michael Tunney M.IRHACE Heating Ventilating & Air Conditioning

Alan Skinner M.IRHACE Refrigeration

FACT SHEET

PREVENTING LEGIONNAIRES’ DISEASE FROM COOLING TOWERS AND EVAPORATIVE CONDENSERS

This fact sheet provides advice to persons conducting a business or undertaking (PCBUs) who have cooling towers or evaporative condensers (cooling plant). This includes (but is not limited to) cooling plant that is part of: any building air conditioning system, commercial premises with refrigeration plant (eg bulk storage of chilled or frozen food), or industrial process.

Legionella bacteria grow on the wet surfaces of cooling towers, evaporative condensers (cooling plant) and scrubbers, and can cause a pneumonia called Legionnaires’ disease. Legionnaires’ disease is often severe and can be fatal. Those at higher risk of becoming infected are adults over 50, males, smokers, people with lung disease or low immunity.

Legionella become airborne when fine water droplets (aerosols) carrying the Legionella bacteria are expelled from the exhaust fans of this equipment and may be inhaled by those nearby. Poorly positioned air intakes for air conditioning units can also capture the bacterial plume and draw it into buildings.

PCBUs whose work involves buildings, industrial or commercial premises that operate one or more cooling towers or evaporative condensers (cooling plant) must eliminate the risks from Legionella colonisation and dissemination so far as is reasonably practicable. If a risk can’t be eliminated, it must be minimised, so far as is reasonably practicable.

In relation to cooling plant, there will be different PCBUs with overlapping health and safety duties. When this happens, PCBUs must, so far as is reasonably practicable, consult, co-operate and co-ordinate activities.

The extent of the duty to manage risks depends on the ability of each PCBU to influence and control the matter. Table 1 describes the different types of PCBUs that may be involved, their duties and likely extent of their influence or control.

ROLE DUTY

PCBUs who are designers, manufacturers, importers and suppliers of the plant and structures

PCBUs who are installers, constructors and commissioners of plant and structures

> ensure plant, substances, or structures are without health and safety risks so far as is reasonably practicable

> test to make sure the plant designed/ manufactured/supplied is without health and safety risks so far as is reasonably practicable (or arrange the carrying out of such tests)

> give adequate information to people who are given the design/plant, substance or structure.

> ensure the way plant or structures are installed, constructed or commissioned are without health and safety risks so far as is reasonably practicable.

EXENT OF INFLUENCE/CONTROL

Upstream PCBUs can influence and often eliminate health and safety risks through designing, manufacturing or installing plant that is safe for the operator.

Designers of cooling plant are in a unique position in that they have the opportunity to eliminate or minimise risks by adopting the principles of health and safety in design. The elimination or minimisation of risks after installation of plant is usually less effective, and more costly.

ROLE DUTY

PCBUs who manage or control the workplace

PCBUs who manage or control the workplace

> ensure that, so far as is reasonably practicable, the workplace and anything else arising from the workplace are without health and safety risks to any person

> ensure, so far as is reasonably practicable, the provision and maintenance of safe plant and structures.

> ensure, so far as is reasonably p racticable, the health and safety of workers, and that others (eg visitors to the workplace or members of the public not associated with the premises) are not put at risk by its work (the managing, maintaining or servicing the cooling plant)

> ensure, so far as is reasonably practicable, that any fixtures, fittings or plant they manage or control are without risks to the health and safety of any person.

EXENT OF INFLUENCE/CONTROL

This PCBU has influence and control over who manages, maintains or services the cooling plant. This PCBU could carry out these actions themselves or contract someone else to do it.

For new buildings or renovations, this PCBU will have significant influence or control over the type of cooling plant installed.

This PCBU has influence and control over who manages, maintains or services the cooling plant. This PCBU could carry out these actions themselves or contract someone else to do it.

For new buildings or renovations, this PCBU will have significant influence or control over the type of cooling plant installed.

PCBUs [DLM1] who manage, maintain or service the cooling plant

PCBUs who are solely tenants in buildings with cooling plant as part of air conditioning system

> ensure, so far as is reasonably practicable, the health and safety of workers, and that others (eg visitors to the workplace or members of the public not associated with the premises) are not put at risk by its work (the managing, maintaining or servicing the cooling plant)

> ensure, so far as is reasonably practicable, that any fixtures, fittings or plant they manage or control are without risks to the health and safety of any person.

> ensure, so far as is reasonably practicable, the health and safety of workers, and that others (eg visitors to the workplace or members of the public not associated with the premises) are not put at risk by its work.

This PCBU has influence and control over eliminating or minimising the day-to-day health and safety risks from Legionella in cooling plant.

They should have effective systems in place to maintain, monitor, treat and report on their sampling/testing/ reporting procedures.

This PCBU is likely to have a a limited extent to influence or control the health and safety risks. The extent of this duty will likely involve: confirming that the PCBU who manages or controls the workplace has a maintenance schedule and monthly water quality testing programme in place either receiving these reports or being notified if Legionella is detected and what actions are being taken to address this keeping workers informed when Legionella is detected.

Table 1: Different PCBUs with overlapping duties

Recommended actions

Tables 2 and 3 describe recommended actions when intending to install new cooling plant, and when dealing with cooling plant on an ongoing basis.

Seek the views of your workers about the ways to eliminate or minimise the risks from Legionella in cooling plant.

WHEN INSTALLING NEW COOLING PLANT

ROLE

PCBUs who are designers, manufacturers, importers and suppliers of the plant

RECOMMENDED ACTION

Design, manufacture, import and supply cooling plant:

> that use processes that restrict bacterial growth (for example: a hot water unit with mixing valves instead of a warm water storage system)

> have parts that avoid sludge build-up. Legionella grow better in sludge

> avoid dead legs in pipe work so bacteria cannot grow in them

> use well designed drift eliminators for effective capture of aerosols

> have easy access for maintenance and cleaning

> use a continuously-operating disinfection process to kill bacteria

> use a closed-circuit system instead of an open circuit – this removes bacteria growth surfaces.

PCBUs who are installers, constructors and commissioners of plant and structures

> Install and construct cooling plant following relevant specifications.

> Install cooling plant so that potentially-contaminated aerosols from other discharges are not drawn into the building air intakes.

> Do not start up cooling plant until all water treatment systems are operational. PCBUs who manage or control the workplace

> Use a plant design based on air-cooling rather than water cooling. This eliminates the risk of Legionella growth.

> If the above is not reasonably practicable, use water cooling plant that is designed to minimise the risk of Legionella growth. Such plant should be easy to access and keep clean.

Note - Buildings (including their air-conditioning systems) must comply with the requirements under the Building Act

FOR EXISTING COOLING PLANT

ROLE RECOMMENDED ACTION

PCBUs who manage or control the workplace

> Ensure the water cooling plant is kept clean and well maintained. Make enquires to ensure the PCBU used to manage, maintain or service the cooling plant is competent and qualified to complete the task.

> Insist on timely receipt of water quality reports with clear explanations of findings. The PCBU should keep written records to demonstrate ongoing compliance to relevant authorities. The records should also show actions taken when results indicate an increased microbial growth in the water.

> After consulting with the PCBU who manages, maintains or services the cooling plant, decide the actions to be taken to protect workers and others when microbial growth is found.

> Provide copies of all water quality reports to building tenants or provide reports to tenants/visitors when levels of Legionella requiring action are found.

Table 2: Recommended actions when intending to install new cooling plan

ROLE RECOMMENDED ACTION

PCBUs who manage, maintain or service the cooling plant

> Keep the water cooling plant clean and well maintained. Consider steam cleaning as part of maintenance schedule of wetted surfaces.

> Treat the water with chemicals – if needed, use specialist advice for help with:

- selecting and running the chemical dosing equipment

- the design of bleed-off techniques to avoid chemical residue build-up

- choosing biocides – effectiveness versus ecotoxicity

- regular water sampling, testing, and reporting of findings (in accordance with AS/NZS3666.3 Air handling and water systems of buildings – Microbial control –Part 3: Performance based maintenance of cooling water systems).

> Ensure the person who monitors, tests or treats water or records microbial growth is competent and qualified to complete the task.

> If the cooling plant is in a start-up phase after being shut down, more frequent sampling may be initially needed.

> If earth works are occurring in the vicinity to the cooling plant, more frequent sampling may be needed.

> Provide the PCBU who manages or controls the workplace with water quality reports as soon as possible.

- the reports should contain clear explanations of the findings (see aS/NZS3666.3 and the New Zealand Building Code).

> Alert the PCBU who manages or controls the workplace immediately if results indicate an increased microbial growth in the water and inform them what actions should be taken to address this.

Note - The Institute of Environmental Science and Research’s guidelines Environmental Sampling for Legionella Bacteria provide procedures for collecting samples from cooling plant for testing. These guidelines are available from: www.esr.cri.nz

FURTHER INFORMATION

> Download Preventing Legionnaires’ disease from cooling towers and evaporative condensers

Environmental Sampling for Legionella Bacteria - available from the Institute of Environmental Science and Research.

The Prevention of Legionellosis in New Zealand: Guidelines for the Control of Legionella Bacteria available from the Ministry of Health.

NSW Code of Practice for the Control of Legionnaires’ disease available from the New South Wales Department of Health or download the PDF here.

The following standards are available from Standards New Zealand

1. AS/NZS3666.3 Air handling and water systems of buildings – Microbial control – Part 3: Performance-based maintenance of cooling water systems

2. NZS4302 Code of practice for the control of hygiene in air and water systems in buildings

3. AS/NZS4020 Testing of products for use in contact with drinking water.

Table 3: Recommended actions for day-to-day operations

MEMBER BENEFITS

CCCANZ Members have greater access to resources and information, readily available through their individual access to the CCCANZ Standards NZ Online Library.

The standards referred to in the article on Legionnaires Disease from WorkSafe New Zealand are available to CCCA members as well as several other standards. The CCCANZ Board regularly reviews the standards in the library, which takes away your administration so this is the most up-to-date information for our industry.

CCCA membership starts from as little as $500.00 annually for a company with a turnover of under $600k. Why pay $500 to purchase three standards when you could have access to many? and start enjoying the member benefits today!

SIGN UP

WDC UPDATE

We would like to warmly thank all industry members who have given their time and input into the Refrigeration, Heating and Ventilation and Airconditioning Sector Advisory Group (SAG). This group, and your involvement, has been invaluable in supporting and improving vocational education in your industry.

As you know, this group was previously managed by Competenz. With the Reform of Vocational Education (RoVE), the management of these groups has moved to Hanga-Aro-Rau. As a new organisation, Hanga-Aro-Rau operates under different legislation: we now need to re-set the SAG to ensure it aligns with our Order in Council. Over the coming months, we will be calling for Expressions of Interest to re-form this SAG. The SAG role will be strategic: it will specifically focus on the ‘big picture’ of workforce development and will discuss the challenges, opportunities, and solutions the NZ HVAC workforce need, both now and in the future.

Recently Competenz and now, Hanga-Aro-Rau has been working with the sector to review the qualifications for your sector. A Qualifications Advisory Group (QAG) has been established to continue this important mahi. As the review progresses, we will also be seeking to create a Technical Advisory Group (TAG) to support the review and development of unit standards. We welcome expressions of interest to join these groups. If you, or anyone you know, would like to join, please email me.

Thank you again for your support in strengthening vocational education for industry. We look forward to working with you and your sector.

Matt Gough Industry Manager

Matt.Gough@hangaarorau.nz

Mobile ready local supervisor for small to large installations

The Carel boss interface allows the supervisor to be accessed directly from your smartphone or tablet over the WiFi network created by the supervisor itself. boss simplifies access to system information for all users and guarantees the highest data security and integrity of the local infrastructure.

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Modbus, Bacnet TCP/IP, Bacnet MS/TP built in Ideal for cold stores, supermarkets and convenience store applications

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HVAC IN SPACE: CREATING EXTRATERRESTRIAL INDOOR ENVIRONMENTS

In outer space applications, HVAC is a matter of survival—not comfort or health, according to Hamidreza Najafi, Ph.D., Member ASHRAE. To kick off ASHRAE Journal Podcast’s second season, Najafi and John Constantinide, P.E., Member ASHRAE, discuss how HVAC&R technologies used on Earth can be applied to extraterrestrial indoor environments and the opportunities ASHRAE has to help shape the built environment in space.

What would ventilation look like in space?

As private companies race to space (22:00 and 25:15), researchers and engineers are working to create built environments in the final frontier (3:12).

To kick off ASHRAE Journal Podcast’s second season, John Constantinide, P.E., Member ASHRAE, and Hamidreza Najafi, Ph.D., Member ASHRAE, discuss how HVAC&R technologies used on Earth can be applied to extraterrestrial indoor environments (3:35) as well as opportunities ASHRAE has to help shape the built environment in space (3:50, 21:30, 27:25 and x).

The pair also talk about how the International Space Station is an example of a living environment in outer space (4:30) and how the station showcases the importance of HVAC&R technologies and indoor air quality (5:45). Then, they discuss the importance of designing HVAC&R systems that help people exist and survive in the harsh environments of space (5:20), among other topics such as design considerations, nonHVAC elements that affect the built environment and sustainability in space.

Almost two years ago, Constantinide and Najafi co-authored an ASHRAE Journal ar ticle about (2:56) environmental controls in space.

Download that article at ashrae.org/podcast/space.

IRHACE CANTERBURY-WESTLAND ANNUAL GOLF TOURNAMENT 2022

The annual golf tournament for Canterbury-Westland 2022 was held on the 20th February at the Kaiapoi Golf course. The weather conditions were perfect for the day after so many weekends of winter weather we found Summer for the day just in time. The teams were limited due to covid rules and the venues rules for the day. However, the day was successful due to the sponsors, organisers, helpers and players.

The tournament was sponsored by many very generous companies and couldn’t have happened without them.

• Green Fees Black Diamond Technologies Ltd / Mitsubishi Electric

• Breakfast Filters Direct

• Dinner Filters Direct

• Lunch Tegel, Blacks Fasteners, Tip Top Bread & Realcold

• Coffee Cart FilterCorp

• 1st Prizes Gross Central Heating NZ

• 1st Prizes Nett Eurotec

• 2nd Prizes Gross Panasonic

• 2nd Prizes Nett Panasonic

• 3rd Prizes Gross Patton Refrigeration

• 3rd Prizes Nett RefSpecs

• Trophies Reece HVAC Actrol

• Fun awards Temperzone

• Golf Carts Smooth-Air

• Closest to the Pin Black Diamond Technologies Ltd / Mitsubishi Electric Fridge Freezer

• Longest Drive Panasonic / Panasonic 55” LED Television

• Raffles x4 FilterCorp

• Golf Balls & Tees Black Diamond Technologies Ltd / Mitsubishi Electric

• Bar Tab WaterPro, Pacific ventilation, Daikin & Holyoake Industries

• Golf Cards HVAC Shop

• Players Prizes Canterbury Heating Services, BIM & CAD Engineering, Zip Clip by Steel & Tube and Simpro

• Chiller Trailer North Canterbury Energy Centre

• Course Signage Sign Foundry

• Each hole had a sponsor also -Pacific Ventilation, Beattie Air Conditioning, Aotea Electric, IES Group, Filtercorp, Airlab, Pierson Refrigeration, Beattie Air Conditioning, McAlpine Hussmann, Realcold, Temperzone, Filtercorp, Fantech, Benmax, Airlab, Project HVAC, Hose Supplies & Pacific ventilation. Some sponsoring two holes.

HUGE THANKS TO THE ORGANISERS AND EMPLOYERS OF THE ORGANISERS

• Tracey Manaena FilterCorp

• Evan Rayner Black Diamond Technologies Ltd / Mitsubishi Electric

AND THE HELPERS WHO GAVE UP THEIR WEEKEND TO HELP OUT

• John Kelly SIT Training

• Alan Kelly SIT Training

• Deidre Johns TAP Training

• Gregg Tonkin Black Diamond Technologies Ltd / Mitsubishi Electric

• Aron Nand Black Diamond Technologies Ltd / Mitsubishi Electric

• Matt Lawry Black Diamond Technologies Ltd / Mitsubishi Electric

• Chris Topp Black Diamond Technologies Ltd & FilterCorp

THE WINNERS ON THE DAY WENT TO MANY OF OUR SPONSORS INCLUDING FILTERCORP, PATTON REFRIGERATION, BRIGHTR & AOTEA ELECTRIC.

• 1st Prizes Gross FilterCorp

• 1st Prizes Nett ModServe

• 2nd Prizes Gross Brightr

• 2nd Prizes Nett Puttons -Patton Refrigeration

• 3rd Prizes Gross Carlett Electrical

• 3rd Prizes Nett Aotea Electric

The tournament was a lot of fun with award for Dick of the Day Award. This year it went to Bryan Lamb for leaving his car key in a team bag that was handed out to another team who thought they won a Car.

And the winner of the Most Golf Award went to James Steele from Central Heating NZ who has won this award three times and now has a collection of trophies at least he got the most out of the day

MOST GOLF

Hacker Award went to Tony Hansen from Temperzone who hopefully didn’t damage the course too much. These two awards were sponsored by Temperzone which was rather fitting that Tony get to take an award with his own Company on it to display in his office.

HACKER AWARD

Quentin from Patton refrigeration went home with a Mitsubishi Electric fridge Freezer to keep his beer cold, this prize sponsored by Black Diamond Technologies Ltd / Mitsubishi Electric. Morgan Gallagher from ModServe took home a 55” Panasonic TV for the longest drive with the TV sponsored by Panasonic.

Thank you to all who attended, helped organise, and especially those who sponsored the event

Evan Rayner & Tracey Manaena

Irhace Golf Organisers -Canterbury Westland

Black Diamond Technologies Ltd & FilterCorp

BEIJER REF NZ AND CVNZ PARTNER TO PROTECT THE PAPAKURA STREAM

Beijer Ref New Zealand is proud and excited to announce as the newest partner of Conservation Volunteers New Zealand (CVNZ) Papakura Stream Restoration Project

Our Beijer Ref NZ staff will play an extremely important role by coming out to volunteer on these projects and lending CVNZ a large source of people power, without which this project wouldn’t be possible.

Beijer Ref NZ Managing Director, Karl Burke said:

”We are really excited to be partnering with such a great cause, it provides a good platform for our people and the business to make a real impact on our community and environment, it also gives our teams a visual representation of the longer term benefits we are helping to support.”

The partnership on the protection of the Papakura Stream allows us to support a priority conservation project that makes a real difference to our community and environment. It also offers our staff opportunities to get involved in practical handson conservation activities.

With our support, CVNZ can plant at least an additional 3,000 native trees in 2022 which will be cared for in coming years. Funding also covers community events to encourage community involvement in planting, plant care, weed control and litter clean ups.

ABOUT PAPAKURA STREAM RESTORATION PROJECT

The Papakura Stream Restoration Project is a large, multi-stakeholder, catchment wide programme that will restore and protect this important waterway and the habitat for the diverse species that call this area home. The project’s aim is to restore and protect stream banks and water quality, as well as habitat for native species. This restoration will include fencing planting native trees and shrubs, water quality monitoring, plant maintenance, and community engagement. Restoration will take place on both public land, in partnership with Manurewa, Franklin and Papakura Local Boards, and private land, in partnership with farmers and other landowners. This project will also require the support of the local community and the corporate community in the form of volunteering, sponsorship, and partnerships. In 2021, the programme kicked off with the planting of 12,000 native trees and installation of 400m of fencing. Thanks to partners such as Beijer Ref NZ, this project is due to grow much larger in 2022 and beyond.

WHY BECOME A MEMBER OF CLIMATE CONTROL COMPANIES ASSOCIATION (CCCANZ)?

Our Mission is to establish and promote high standards of business competence and industry conduct for companies engaged in the climate controlled environment industry. We represent and promote the interests of Members/Affiliates of the Society engaged in the refrigeration, heating, ventilation and air conditioning industries.

CCCANZ is a trade association member of Site Safe. This means that a member company (as well as being a member of Site Safe) can access relevant workplace health and safety information and discounted services from Site Safe

CCCA members get 10% discount off their annual Site Safe membership

www.sitesafe.org.nz

The Specialist Trade Contractors Federation is an organization that represents the specialist trades in the construction industry. With a voice far louder than their membership, NZSTCF is an important body in the construction sector.

Grant Price (from Heatwave Mechanical Services) is a member of the Executive on behalf of CCCANZ. One key achievement of this group and influenced by Grant was the changes to the Retentions Scheme.

www.nzstcf.org.nz

The MATES programme builds and strengthens communities in the workplace and across the industry – helping our people to be supportive and provide an environment that encourages positive wellbeing. The impact of this community-based approach then goes beyond the workplace and into our everyday lives.

CCCA is an Associate Partner with MIC. CCCA members can participate in Fly the Flag Day and get access to their resources and information.

www.mates.net.nz

New Zealand Construction Industry Council (NZCIC): NZCIC is a peak body of associations in the building and construction, design and property sectors. It is the voice of the built environment industry and works with government (central and local) and industry. Key projects have been identified to support the government in achieving its spoken goals.

www.nzcic.co.nz

HVAC BUSINESS SOFTWARE

IRHACE has partnered with simPRO to bring an exclusive discount for IRHACE members!

All financial IRHACE members qualify.

10 YEARS 1992

30 YEARS

Congratulations to Pete Hutson on his 30-year anniversary with IRHACE.

Pete is the National Technical Training Manager at Black Diamond Technologies Ltd and has 18 years experience in technical and training roles. He is on the Standards NZ Committee for EL-056 for Air conditioners and heat pumps.

M.IRHACE 30 years, F.IRHACE since 2014

Branch Chair of Wellington, 16 years

M.ASHRAE since 2009 and was involved in ASHRAE international team to develop training for third world countries.

Warwick Holtham

Peter Hutson F.IRHACE

LIVE EVENTS

IRHACE TECHNICAL EDUCATION 2022

Brought to by IRHACE our Webinar series for the HVAC&R industry. IRHACE members* receive access to webinar library as part of their membership.

*exclusions apply.

7TH APRIL, 12.30PM

Expansion Work Recovery (EWR)

Introduction to expansion work recovery technology for refrigeration systems

Presented by: Dr Alison Subiantoro, Senior Lecturer, Auckland University, M.IRHACE

REGISTER

14TH APRIL, 12.30PM

Air Quality ventilation and Covid 19

This webinar covers the following topics:

1) Ventilation and COVID19

2) What is Ventilation?

3) CO2 Levels

4) Natural Ventilation

5) Mechanical Ventilation

6) Clean Air Delivery Rate (CADR)

Presented by: Fantech

REGISTER

28TH APRIL, 12.30PM

Compliance with NZS 5149

The NZS 5149 standard “dealing with refrigerant concentration in confined spaces” has been around since 2016. It’s important as it affects every new or altered DX system installed in New Zealand, but it is largely overlooked.

If you are designing or installing DX HVAC systems YOU NEED TO KNOW ABOUT NZS 5149.

Presented by: Dave Nicholls

REGISTER

33rd

Wednesday June 22, 12.00 noon

Check the website for full details

Any queries may be sent to admin@irhace.org.nz

11th Annual General Meeting 1 January - 31 December 2021

Wednesday 29th June 2022

Due to last year's conference cancellation the 11th CCCANZ AGM will be held online

Any queries may be sent to admin@cccanz.org.n z Climate