Viessmann WB2B 45 - System Layout 8

Boiler Connections
36
Installation Examples (continued)
System layout 8
Vitodens 200-W, WB2B with...
– DHW storage tank
– low-loss header
– multiple heating circuits with mixing valves
When designing a system as illustrated above, please contact your local Viessmann Sales Representative for assistance.
Legend
AV Air vent (WB2B models 45, 60)
PRV Pressure relief valve
TPV Temperature and pressure relief valve
Vitodens 200-W WB2B boiler with
Vitotronic 200, HO1 outdoor reset
control
Outdoor temperature
Boiler pump sÖ*
Vitocontrol or Vitotronic 200-H,
*1
Mixing valve temperature sensor
Heating circuit pumps
Accessory kit for heating circuit with
mixing valve
*2
Heating circuits with mixing valves
I
Viessmann temperature sensor for
low-loss header
J
Low-loss header
DHW circulating pump sA*
DHW tank temperature sensor
DHW storage tank
Expansion tank
O
DHW recirculation pump sK*
P
Power/Pump module
Q Flow check valve
* See pages 53 and 57
*1
Contact your local Sales Representative
for details.
*2
Vitotronic 200-H, HK1M mixing valve
control with LON communication module
can be used instead of the accessory kit
and Vitocontrol.
Please note location of expansion tank
and flow check valve Q.
Pumps and must pump into the
Vitodens 200-W WB2B boiler (as
illustrated).
5418 909 v1.6
5
1
PRV
5
2 2
AV
A
B
C
D
E E E
F F
F
G
G
G
H H H
K
L
M
N
O
P
Q
2
TPV
I
Fig. 30
J
IMPORTANT
IMPORTANT