Installation and Service
Instructions
for use by heating contractors
5693 970 - 05 02/2015
Read and save these instructions
for future reference.
Vitotronic 100
Type GC1B
Digital boiler control unit
For use with Boiler models VD2A, VD2 and CT3
VITOTRONIC
r
100
Please file in Service Binder
IMPORTANT
Certified as a component
part for Viessmann boilers
Product may not be exactly as shown