Viessmann VITOCAL 242-G Installation And Service Instructions Manual page 28

Compact energy tower for low energy houses
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Preparing for installation
System version 2
Hydraulic diagram
A Primary side interface (see from
page 18)
B Min. 500 mm (for hydraulic
separation)
1 Compact Energy Tower
6 Diaphragm expansion vessel
heating circuit
7 Underfloor heating circuit tem-
perature limiter
28
(cont.)
8 Plate-type heat exchanger
9 Heating water buffer cylinder
qP Underfloor heating circuit
qW Heating circuit pump, direct heat-
qE DHW circulation pump
qR Natural cooling extension kit
qU KM BUS distributor
qI Vitotrol 200 remote control
ing circuit

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Vitocal 222-g

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