System Layout 5 - Viessmann Vitocrossal 300 CU3A 26 Installation Instructions Manual

Installation Examples

System Layout 5

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
A Vitocrossal 300 CU3A boiler with Vitotronic
200, KW6B outdoor reset control
B Outdoor temperature !
C Boiler pump
20
Vitotronic 200-H, HK1B *1
D
E Mixing valve temperature sensor ?
Heating circuit pumps
F
Accessory kit for heating circuit with mixing valve
G
H Heating circuits with mixing valves
Viessmann temperature sensor for low-loss header ?
I
J Low-loss header (if required)
K DHW circulating pump sA
DHW tank temperature sensor %
L
M DHW storage tank
Expansion tank
N
DHW recirculation pump sK
O
P Heating circuit pump
Vitotrol remote (optional)
Q
R Radiator heating circuit
S Temperature and pressure relief valve
Pressure relief valve
T
* Function based on coding of address 53
48
*
28/20
Vitocrossal 300 CU3A 26 to 199 Installation
*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.