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Vitodens 222-F, B2TB 19, 35, 68, 125 Installation
Installation Examples
Alternative Connection
The following piping diagram reflects the connection for the DHW system to boiler.
Legend
A
Boiler
B
Outdoor temperature sensor
!
C
Vitotrol remote (optional)
D
DHW storage tank
E
Boiler
pump
20
F
DHW circulating pump
sA
G
Expansion
tank
H
Diverting
valve
I
Boiler heat exchanger
J
DHW heat exchanger
K
Water
softener
L
Boiler
supply
M
Boiler
return
N
Temperature and pressure relief valve outlet
O
Pressure relief valve outlet
P
DCW
inlet
Q
DHW
outlet
R
DHW
users
S
DHW recirculation pump
T
Flow check valve
U
Integral expansion tank