Viessmann VITOCAL 300-G Installation And Service Instructions Manual page 14

Preparing for installation
Installation
(cont.)
Two stage (type BW/BWS)
720
540
270
230
230 V
400 V
■ Install hydraulic connections on site
stress-free.
■ Establish hydraulic connections
between the two heat pumps (type
BW/BWS) on site.
■ All required components (with a suita-
bly designed plate heat exchanger) for
the cooling circuit must be provided on
site.
14
100
< 42 V 230 V
400 V
= 300
720
540
270
230
100
< 42 V