5.1 Applications and advantages
The Viessmann cylinder loading system is a combination of a
Vitocell 100-L DHW cylinder and a modular Vitotrans 222 heat
exchanger set.
The cylinder loading system for DHW heating is a preferred choice
for the following applications and conditions:
■ Heating circuits requiring low return temperatures or where the
return temperatures are limited, e.g. for district heating or con-
densing boilers:
Heating from the heating temperature (10 °C) to the end tempera-
ture (60 °C) is achieved in one circulation via the heat exchanger
of the Vitotrans 222. This wide temperature spread on the DHW
side results in a low return temperature on the heating water side.
A low return temperature enables a high condensation rate when
utilising condensing technology.
■ Large cylinder capacities with offset heating and draw-off times,
e.g. where water is drawn off at peak times in schools, sports cen-
tres, hospitals, army barracks, council facilities, apartment build-
ings
■ Short-term peak loads, i.e. high draw-off rates and varying reheat
times, e.g. DHW heating in swimming pools, sports facilities,
industrial enterprises and abattoirs.
■ Limited space as the cylinder loading system can transfer a high
output.
Cylinder loading systems — Vitocell 100-L with Vitotrans 222
DHW heating
VIESMANN
27
5414646
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