Viessmann 7133 897 Lead Lag Expansion Kit
Item SKU - 7133897 by Viessmann
EDP - 672853
Product Description
Fits Vitorond 100
Single stage boilers only, for load dependant staging of a second boiler
First boiler must be equipped with either Vitotronic 200 or Vitotronic 300
Second boiler must be equipped with Vitotronic 100 KW10B
Viessmann 7133 897 Lead Lag Expansion Kit
Item SKU - 7133897 by Viessmann (EDP 672853)
Product Description
Fits Vitorond 100
Single stage boilers only, for load dependant staging of a second boiler
First boiler must be equipped with either Vitotronic 200 or Vitotronic 300
Second boiler must be equipped with Vitotronic 100 KW10B