PROJECT
INCORPORATING COLD CHAIN
2
3
1
Centre Point PnP
minimises environmental impact
By Ilana Koegelenberg
Pick n Pay has officially joined the natural refrigerants movement with its impressive new Centre Point store
that boasts a trans-critical CO 2 refrigeration system that requires no municipal water.
C
entre Point in Milnerton, Cape
Town, recently got a R260-
million total overhaul, including
the Pick n Pay (PnP) that was rebuilt in
the place of the old building. It opened
on schedule on 27 September 2018. This
was the first CO 2 trans-critical installation
for PnP, but not their last …
This revived mixed-use development
now comprises three levels of basement,
15 000m² of retail, and two levels of
residential apartments.
PnP is very happy
with the installation.
They have since opened
a second store and
are currently busy
with other trans-critical
sites, too.
The project came together pretty quickly.
As the installation contractor, the Pro Active
Refrigeration installation team, under the
supervision of Gary Dawson, started on site
on 23 July 2018 and was able to stay on
track in terms of the timeline. The plant was
started-up two weeks before store opening,
which was on 27 September 2018.
4
6
5
1. Energy usage is reduced by heavy-duty curtains at openings of cold
rooms.
2. Two 5 000ℓ tanks store harvested water for the CO 2 gas cooler when
needed.
3. CO 2 to water plate heat exchanger for hot water generation.
4. Green indicator for CO 2 level inside cold room.
5. Blower coils in cold rooms have EC fan motors.
6. Heat is reclaimed from the hot gas discharged and used for heating
water for washing and cleaning. The blue coloured hot water storage
tank is of glass fibre.
COLD LINK AFRICA • March/April 2019
www.coldlinkafrica.co.za
19