SA Heat Pumps qualify for SANS 10400-XA
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SANS 10400-XA, published in August 2011, is the new part of the South African standard for environmental sustainability and energy usage in buildings, and forms part of the National Building Regulations. Under the recently released SANS 10400-XA regulations, all new buildings will have to meet specific energy efficiency criteria before being approved for construction. This standard requires that 50% of water heating needs to provided by means other than element heating. By installing a SA Heat Pump to generate more than 50% of your hot water the requirements for SANS 10400-XA will be met.
Heat pumps & hot water storage vessels lifted higher than ever before
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The installation date was agreed upon for 11 August 2013. The building is a 26 story high riser in the heart of Braamfontein, Johannesburg. The equipment to be installed at roof level are 2 BWH-25 heat pumps weighing in at 980kg each and 2 x 8 000 liter hot water storage vessels weighing close to 1 600kg each. The task at hand: manage and arrange a road closure, crane company for lifting of equipment and ensure equipment will be ready for the big day.
Sounds easy enough, until you start…
The 440 Ton mobile crane, able to lift the required 93 meters high, has a footprint of 10,5m x 9,5m once the outriggers are extended in place. It’s impossible for motorists to use the one way, 2 lane road, not even partly. Firstly there will be no space for motorists to pass by and secondly it will be dangerous for the public being in close proximity of such works. The only solution is to close the road off completely. In order to close the road, approval needs to be obtained, usually after a site inspection with all parties involved i.e. SA Heat Pump Engineers, Marlboro Crane Hire and the representative from the applicable department.
Approval needed to be obtained from the following parties:
1. Permission from Johannesburg Metro Police Department.
2. Way leave from Johannesburg Roads Agency.
3. Permission from the local Ward Councilor.
4. Way leave from Johannesburg Water.
5. Way leave from Egoli Gas.
6. Way leave from City Power.
7. Way leave / Permission from all other service suppliers that may be affected in any way.
Just in case you thought the above will be enough to keep you busy, you quickly start to realize, once setting up meetings and site inspections, you also need to obtain permission and a signed petition from all tenants and businesses that may be affected by the planned road closure. Note that an ambulance and fire truck still needs to have access in case of emergency and residents need access to the buildings they live in.
Nothing is impossible though and with proper planning and arrangements anything can be achieved. So we started with all the necessary arrangements, although there’s only one problem - there is only 2 weeks left to deadline and time is running out with no way of extending the lift date…
Given the limited time available it seems we achieved something close to impossible after we obtained all the required documentation and approvals needed on the 8th of August 2013, 2 days prior lift day!!!
Sunday morning, 11 August 2013, 05:30am Marlboro Crane Hire arrive on site with their 440 ton mobile crane, 2 smaller mobile cranes – used in off-loading and assembling the extension sections of the big crane as well as fitting the counterweights of 60 Tons. Five tri-axle trucks were used for transporting auxiliary equipment to site. SA Heat Pump Engineers, responsible for site / project management delivered the equipment to be lifted and made 8 people available to assist the JMPD in controlling pedestrians etc. JMPD controlled traffic and assisted whenever trucks needed to enter or exit the closed road.
It took 9 hours to build and assemble the extension sections of the crane and by the time everything were ready to start the lifting of the equipment another unforeseen situation occur – Wind…
The maximum allowed wind speed; given the height and safety conditions are 7 meters per second. The wind speed sits at 21 meters per second and the lifts cannot be done safely. As a result the lifts are called off temporarily and the wind speed is checked every hour, hoping it will calm down some time at night as to allow the lifts to take place. Finally at around 23:50pm Sunday night the wind speed dropped to just below 7 meters per second and the equipment is lifted onto the roof, 26 stories high above street level. Around 02:30am Monday morning the equipment were lifted and disassembly of the huge mobile crane started. Monday morning, 12 August 2013, 09:00am the road were completely evacuated and re-opened after a non-stop 27.5 hour operation.
Just another example on how SA Heat Pump Engineers are committed to go the extra mile in order to meet the required deadline.