Viessmann VITOCAL 300-G Installation And Service Instructions Manual page 41

Compact heat pump with electric drive single and two-stage, type bw/bws, ww/wws
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Integration of the two-stage version in the...
Two-stage heat pump cascade
C
Cooling interface
H
Heating interface
P
Primary circuit interface
qQ
W
Preparing for installation
(cont.)
DHW interface
41

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