Viessmann VITOCAL 300-G Installation And Service Instructions Manual page 40

Compact heat pump with electric drive single and two-stage, type bw/bws, ww/wws
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Preparing for installation
Integration of the two-stage version in the...
Two-stage heat pump
C
H
W
P
qU
3
8
C Cooling interface
H Heating interface
P Primary circuit interface (see pri-
mary circuit)
W DHW interface (see also DHW heat-
ing)
40
qP
qQ
qZ
wT
9
6
5
qW
qT
P
2
1
qE
(cont.)

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