Pump Connection Overview - Viessmann VITOTRONIC 100 GC1B Installation And Service Instructions Manual

Installation Sequence

Pump Connection Overview

Legend
A 120V pump output
B To the Vitotronic control unit
C Junction box
Rated current: 2A~
* Maximum output 6FLA shared between all
120V outputs.
50
Vitotronic 100, GC1B Installation and Service
Pumps 120V
Available pump connections
Switching contact/shunt pump
sÖA1
sL Boiler pump
DHW Pump
sA