Viessmann Vitodens 200 Technical Manual page 44

1.3 Selection guide for DHW heating
DHW cylinder
200
Separate DHW cylinders
For increased DHW convenience separate
300
DHW cylinders are available in white finish
for the following versions
H wall mounted (80 litres)
H below the boiler (120 or 150 litres)
H adjacent to the boiler (160, 200 or 300 litres)
and available in a white finish.
DHW cylinder with 350 to 1 000 litres
1
capacity are also offered in Vitosilver and
may be used in accordance with the
aforementioned rated output.
Sizing DHW cylinders (up to 35 kW)
This summary enables the approximate
sizing of the DHW cylinder for
H small households
H average households (3 to 4 persons).
No.
Drawing rate in Wh
Volume of drawn hot
water per use or
useful capacity in litres
1 1 Bath 1600 Bath 1600
to DIN 4471 to DIN 4471
2 2 Bath 1700 Bath 1700
to DIN 4471 to DIN 4471
3 3 Small and stepped Small and stepped
bath tub bath tub
4 Large bath tub
4 Large bath tub
(1 800 × 750 mm) (1 800 × 750 mm)
5 5 Shower cubicle with Shower cubicle with
mixer tap and mixer tap and
standard shower head standard shower head
6 6 Shower cubicle with Shower cubicle with
1 top and 2 side spray 1 top and 2 side spray
nozzles nozzles
7 7 Washbasin Washbasin
8 8 Bidet Bidet
*1
Unsuitable combination.
Small households
Average households (3 to 4 persons)
Example:
For new buildings, select the appropriate
DHW cylinder in accordance with
DIN 4708. An apartment/flat is an average
household with 3 occupants.
44
Vitodens 200 and 300 (up to 35 kW) as
boilers are factory-set for DHW heating
with a separate DHW cylinder. For this
purpose, the Vitodens 200 and 300 (up to
35 kW) provide an integral diverter valve.
To connect a separate DHW cylinder,
always order the connection set for the
DHW cylinder.
For the Vitodens 300 from 49 kW output,
DHW cylinder connections with separate
cylinder primary pump (accessories) are
provided.
Various consumer combinations may
apply.
(1 to 2 persons)
1 2
Bath Bath
1600 1700
to to
DIN 4471 DIN 4471
5 820 6 510
140 160
*1
80 litres
*1
80 litres
*1
80 litres
*1
120 litres
*1 *1
*1 *1
*1 *1
*1 *1
80 litres 80 litres
120 litres 120 litres
80 litres 80 litres
*1
150/160 litres
80 litres 80 litres
80 litres 120 litres
80 litres 80 litres
80 litres 120 litres
(1 to 2 persons)
A DHW cylinder of 120 litres capacity
should be selected, if a bath 1600 with a
drawing rate of 140 litres and a shower
cubicle (with mixer tap and standard
shower head) with 40 litres drawing rate
are used simultaneously.
3 4 5
Small and Large bath Shower
stepped tub cubicle
bath tub (1 800 × with mixer
750 mm) tap and
standard
shower
head
4 890 8 720
120 200
*1 *1
80 litres
*1 *1
120 litres 150/160 litres
*1 *1
80 litres
*1 *1
120 litres
*1
80 litres 80 litres
*1
120 litres 120 litres
*1
120 litres 120 litres
*1
200 litres 150/160 litres
80 litres 120 litres 80 litres
120 litres 150/160 litres 80 litres
*1
80 litres 80 litres
150/160 litres 200 litres 80 litres
80 litres 80 litres 80 litres
80 litres 150/160 litres 80 litres
80 litres 80 litres 80 litres
80 litres 150/160 litres 80 litres
Determine the DHW cylinder size in
accordance with the specific DHW
demand.
For further details relating to the DHW
cylinders, see the separate datasheet
"DHW cylinders" for wall mounted
boilers and the technical guide "Vitocell
DHW cylinders".
Note
If identical consumers are combined with
each other, only the individual consumer
will be considered and not the
combination.
6 7
Shower Washbasin
cubicle
with
1 shower
head and
2 side
spray
nozzles
1 630 4 070 700
40 100 17
80 litres 80 litres
120 litres
80 litres 80 litres
120 litres 120 litres
80 litres 80 litres
120 litres 120 litres
120 litres 80 litres
200 litres 150/160 litres 150/160 litres
80 litres 80 litres
80 litres 80 litres
80 litres 80 litres
80 litres 80 litres
80 litres 80 litres
80 litres 80 litres
80 litres 80 litres
80 litres 80 litres
8
Bidet
810
20
80 litres
120 litres
80 litres
120 litres
80 litres
120 litres
80 litres
80 litres
80 litres
80 litres
80 litres
80 litres
80 litres
80 litres
80 litres
VITODENS