PROJECT
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Heat pumps are designed to move thermal energy in
the opposite direction of spontaneous heat transfer by
absorbing heat from a cold space and releasing it to
a warmer one. A heat pump uses a small amount of
external power to accomplish the work of transferring
energy from the heat source to the heat sink.
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The project also has a sustainability aspect in the form
of the Calcamite Bio-Mite septic tanks. The load on the
municipal sewer system is removed, generating less
waste from the building overall.
PROJECT CHALLENGES
As with any other project, challenges are to be expected.
Being an existing building, the castle presented huge
challenges in terms of plumbing. GDM spent an entire
month investigating the existing infrastructure to
determine the operation thereof and what needed to
www.plumbingafrica.co.za
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Kwikot heat pumps installed during
construction.
Geberit built-in toilet cisterns installed
during construction.
Calcamite Bio-Mite tank before being
installed below ground.
The 80mm galvanised water pipeline
installation.
Typical valve arrangement consisting
of shut-off valves, Y-strainer, and
pressure-reducing valves.
Grundfos pump unit with 80 000ℓ
reservoir.
Sewer septic sump pump control
panel.
Typical toilet duct with vent to
atmosphere.
Calcamite Bio-Mite tank after being
installed below ground.
Continued on page 40 >>
April 2018 Volume 24 I Number 2