Datasheet

5822 239 GB
40
3.2 Domestic hot water heating with cylinder loading system
3.2 Domestic hot water heating with cylinder loading system
The Viessmann cylinder loading system is
a combination of a Vitocell-L cylinder and
a Vitotrans heat exchanger set. The
cylinder loading system for DHW heating
is a preferred choice for:
H large storage capacities with offset
loading and drawing times, e.g. water is
drawn off in bursts at schools, sports
centres, hospitals, army camps, social
buildings, etc.
H short-term peak loads, i.e. high draw-off
rates and various re-heat times, e.g.
domestic hot water heating in
swimming pools, sports facilities,
industrial companies, etc.
H limited space as the cylinder loading
system can transfer a high output.
The DHW cylinder loading s ystem
can be 1 controlled by a Vitotronic 100
(type GC1), 300 (type GW2) or 333.
Control can be achieved via a mixer
through Vitotronic 050 (type HK1W, HK1S,
HK3W or HK3S), if these control units are
not available or if there are several
cylinder loading systems.
Plug-in connector
% Cylinder temperature sensor (top)
% Cylinder temperature sensor
(bottom)
aJ B Temperature sensor Vitotrans 222
sÖ A1 Primary pump connection in the
cylinder loading system
sA Secondary pump connection in
the cylinder loading system
sK DHW circulation pump (not for
Vitotronic 100)
gS A1 3-way valve Vitotrans 222
System-specific coding on Vitotronic 1
Change ”4C” to ”1” – use the plug-in
connector sÖ as primary pump for the
heat exchanger set.
Change ”4E” to ”1” – use the
output gS as primary control unit for the
heat exchanger set.
Change ”55” to ”3” – use the DHW
cylinder thermostat for the heat
exchanger set.
(heat exchanger set)
Boiler
Vitocell-L 100/300
Vitotrans 222
20 A1
5
28
5
1
17 B21
52 A1