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5583 571 - 05
Vitorond 100, VR1 22 to 33, 91 to 140 Installation and Service
Connections
Installation Examples - Vitotronic (continued)
Legend
A Heating circuit
B Spring-loaded flow check valve
C Circulation pump
D Automatic air vent, (field supplied),
pressure relief valve, and temperature pressure guage
E Expansion tank
F Domestic hot water storage tank (indirect-fired)
G 4-Way mixing valve
H Low water cut-off (if required)
With one low-temperature circuit with 4-way mixing valve,
and with domestic hot water production
e.g. with Vitotronic 200, Model KW2 combined with
one mixing valve actuator accessory kit
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