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High-pressure geyser technical specifications

The high-pressure systems are available in a Black and White series and a Green and White series. The differences are explained below.

Available models:

 Black & White Series  Green & White Series
12 Tubes / 100L 10 Tubes / 100L
100 Litres - 12 x 1.8m Tubes 100 Litres - 10 x 1.8m Tubes
150 Litres -18 x 1.8m Tubes 150 Litres -15 x 1.8m Tubes
200 Litres - 24 x 1.8m Tubes 200 Litres - 20 x 1.8m Tubes
250 Liters - 30 x 1.8m Tubes 250 Liters - 25 x 1.8m Tubes

Guarantee:

Black & White series Green & White series
 5 Years 2 Years

 

Outer tank material:

Both series' outer tank consists of 0.3 mm galvanised steel.

Inner tank material:

Both series' inner tank consists of 1.2mm SUS 304 stainless steel.

Insulation material:

Both series have 55mm thick polyurethane foam between the inner and outer tank.

Weight:

The high-pressure tanks can weigh up to 50kg.

Sacrificial anode:

A magnesium anode is included with both series. As with any other geyser, regular replacement of the anode makes the geyser last much longer because it reduces rust substantially.

Pressure:

 Black & White series Green & White series
600kPa 500kPa



Evacuated Tubes:

  • This is a standard 1800 mm length x 58 mm diameter x 2 mm thick glass tube. These tubes are designed to withstand 38 mm diameter hailstones.
  • Heat transfer into the high-pressure tanks is done with copper heat pipes. Heat pipes utilize a liquid which boils and condenses, thus causing an effective heat transfer cycle.
  • There is no water inside a high pressure vacuum tube. Thin aluminium plates and a copper heat pipe transfer the heat from the hot black inner vacuum tube to the tank.

Stands:

  • 50L to 150L systems
 Black & White series Green & White series
Painted black Painted green
Four cross braces at the back of the stand (under the geyser) and two cross braces at the front of the geyser and one cross brace on each side. Six of these cross braces are the same length whereas the two longer braces will be used for each side. The beam for the shiny end of the vacuum tubes is at the bottom of the stand. There are no plastic cups. Four cross braces at the back of the stand (under the geyser) and two cross braces at the front of the geyser and one cross brace on each side. Six of these cross braces are the same length whereas the two longer braces will be used for each side. The beam for the shiny end of the vacuum tubes is at the bottom of the stand. There are no plastic cups.

 

  • 200L to 300L systems
 Black & White series Green & White series
Painted black. Painted green.
Three upright legs instead of two like on the smaller systems. Three upright legs instead of two like on the smaller systems.

 

Optional electric backup system:

All models can accommodate a standard 32 mm screw-in South African electric element with pocket. It can be controlled with either a thermostat or an SR609 programmable controller.

SR609 smart controller:

The SR609 is a programmable electronic control panel. The features include:

  • The display of the water temperature inside the tank that is measured by a probe that fits inside the pocket of the element.
  • It can be set to heat the water in the tank electrically in three cycles of time and temperatures.
  • Default: if the water is cooler than 54oC between 4 and 5 am, the water will be heated to 60oC. The same happens between 5 and 10 pm again.
  • A manual button raises the temperature up to the programmed temperature (usually 60oC), whenever needed.
  • There is a battery backup, so it will not forget its settings.

The choice between low and high pressure:

If you want to keep your municipal or pressure pump pressure, a high-pressure system is the better choice. You will have less available hot water compared to the low-pressure systems, because high-pressure geysers do not store hot water in the tubes like low pressure systems.