Viessmann Vitocell 100-L - Installation - Cylinder Loading System; 7.1 DHW Connection

7.1 DHW connection
Version 1 — cylinder loading system with one Vitocell 100-L and Vitotrans 222 for modulating flow tem-
peratures
F
G
O
P
B
N
L
C
A
H
D
K
A1A1
M
E
28
5221 B17 20
A5
B5
A
Draw-off points (DHW)
B
DHW circulation pump
C
Vitotrans 222 heat exchanger set with mixer assembly
D
Vitotronic 200-H, type HK1B, HK3B
Vitotronic 100, type CC1I, CC1E
*13
Vitotronic 200, type CO1I, CO1E
Vitotronic 300, type CM1I, CM1E
Vitotronic 300-K, type MW1B, MW2B
E
Plate heat exchanger
F
Heating water flow
G
Heating water return
H
Shared cold water connection with safety assembly to DIN 1988
K
Vitocell 100-L, (here: 500 l capacity)
L
Cylinder loading pump (secondary), highly efficient
N
Spring-loaded check valve
O
Cylinder temperature sensor, top
(ON, plug %A)
P
Cylinder temperature sensor, bottom
(OFF, plug %B)
Note
■
Establish cold water connection H with a tee with straight flow to
the cold water connection of the Vitocell 100-L. Always make the
cold water connection to the Vitotrans 222 as a tee branch.
■ In larger DHW circulation networks, it may be necessary to briefly
switch off the DHW circulation pump to enable heating of the
Vitocell 100-L.
Due to the necessary high flow temperatures of the heat source,
never use a directly connected heating circuit without mixer.
For optimum operation, disable the DHW cylinder priority at the con-
trol unit.
*13
Control unit has no output sK for control of a DHW circulation pump.
Installation — cylinder loading system
44
VIESMANN
DHW heating
7
5414646