Viessmann Vitocrossal 300 Series Technical Data Manual page 25

Vitocrossal 300 CU3A 26 to 199 Technical Data
System Layout 6
Vitocrossal 300 CU3A with...
- DHW storage tank
- low-loss header
- multiple heating circuits with mixing valves
- one heating circuit without mixing valve
When designing a system as illustrated above, please contact your local Viessmann Sales Representative for assistance.
Legend
Vitocrossal 300 CU3A boiler with Vitotronic
A
200, KW6B outdoor reset control
B Outdoor temperature !
Boiler pump
C
20
D Vitotronic 200-H, HK1B *1
E Mixing valve temperature sensor ?
Heating circuit pumps
F
G Accessory kit for heating circuit with mixing valve
Heating circuits with mixing valves
H
Viessmann temperature sensor for low-loss header ?
I
J Low-loss header (if required)
DHW circulating pump sA
K
L DHW tank temperature sensor %
M DHW storage tank
Expansion tank
N
O DHW recirculation pump sK
Heating circuit pump
P
Vitotrol remote (optional)
Q
R Radiator heating circuit
Temperature and pressure relief valve
S
T Pressure relief valve
* Function based on coding of address 53
*
28/20
*1 Contact your local Sales Representative for details.
Vitotronic 200-H, HK1B mixing valve control with
LON communication module can be used instead
of the accessory kit and Vitocontrol.
IMPORTANT
Please note location of expansion tank N.
IMPORTANT
System separation is required of underfloor heating
systems employing non-oxygen diffusion barrier tubing.
All components on the secondary side of the heat
exchanger must be wwmade of corrosion-resistant
materials.
Installation Examples
25