Alternative Connection - Viessmann VITODENS 222-F Technical Data Manual
For natural gas and liquid propane gas gas-fired floor-mounted condensing dhw combi-boiler 12 to 125 mbh (3.5 to 37 kw)
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Also See for VITODENS 222-F:
- Installation and service instructions manual (172 pages) ,
- Installation and service instructions for contractors (156 pages) ,
- Technical manual (156 pages)
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Vitodens 222-F, B2TA 19 and 35 Technical Data
Alternative Connection
The following piping diagram reflects the connection for the DHW system to boiler.
Legend
Boiler
A
B
Outdoor temperature sensor !
Vitotrol remote (optional)
C
DHW storage tank
D
E
Boiler pump
20
DHW circulating pump sA
F
G
Expansion tank
H
Diverting valve
Boiler heat exchanger
I
J
DHW heat exchanger
Water softener
K
Boiler supply
L
M
Boiler return
Temperature and pressure relief valve outlet
N
O
Pressure relief valve outlet
P
DCW inlet
DHW outlet
Q
R
DHW users
DHW recirculation pump
S
Flow check valve
T
U
Integral expansion tank
Installation Examples
31
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