Viessmann VITODENS 100-W Technical Data Manual page 15

System Layout 1
Vitodens 100-W, WB1A 8-24, 8-30 with...
– one heating circuit
T- -T
AV
PRV
System Layout 1 - Alternate Option
T- -T
AV
PRV
Please note!
The use of a low-loss header is
recommended if the water flow rate is less
than 1.7 GPM / 400 ltr/h or more than 6.2
GPM / 1400 ltr/h.
The low-loss header is available as
accessory part.
Model No. Max. flow rate
(GPM/ltr/h)
Vitodens 100,
WB1A 8-24 6.2/1400
WB1A 8-30 6.2/1400
Installation Examples
Legend
AV Air vent
PRV Pressure relief valve
Vitodens 100-W
Room thermostat
Heating circuit
Heating circuit pump (field
supplied)
Expansion tank
15