Viessmann VITOLA 200 Installation Instructions Manual page 27

Installation Examples
Underfloor heating system with one low-temperature, with 3-way mixing valve,
and system separation
e.g. with Vitotronic 200, KW2 combined with one Mixing Valve Actuator Accessory Kit
Boiler in a heating/cooling application
v2
(Continued)
v1
Connections
Heating circuit
Spring-loaded flow check valve
Circulation pump for heating circuit
Safety header
with automatic air vent,
pressure relief valve, and
pressure gage
Expansion tank
Heat exchanger
Circulation pump for heat exchanger
Pressure relief valve
Cooling season starts:
close valve v1 and open valve v2
Heating season starts:
close valve v2 and open valve v1
Heating/Cooling unit
Spring-loaded flow check valve
Circulation pump
Safety header
with automatic air vent,
pressure relief valve, and
pressure gage
Expansion tank
Water chiller
IMPORTANT
We strongly suggest that the valves
pictured above be labelled "v1" and
v2."
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