Viessmann VITOCAL 300-G Installation And Service Instructions For Contractors page 16

Installation sequence
Siting the heat pump
Fitting the hydraulic connection set
The pipes of the primary circuit/secondary circuit
■
connection set are located in the EPP box, which is
positioned on top of the appliance on delivery.
■ With the primary circuit/secondary circuit connection
set, the on-site hydraulic lines can be connected at
the top of the heat pump.
Note
The following connection versions are possible with
the hydraulic connection sets available as accessories:
■ Connection of the primary lines to the right or left
■ Connection of all hydraulic lines at the back
Fitting the primary/secondary circuit connection set (standard delivery)
E
D
+
Fig. 8
Primary circuit flow (heat pump brine inlet), con-
A
nection Cu 28 x 1.5 mm
Primary circuit return (heat pump brine outlet),
B
connection Cu 28 x 1.5 mm
Secondary circuit flow (DHW cylinder), connection
C
Cu 28 x 1.5 mm
16
(cont.)
C
B
A
2.
5x
1.
5x
Note
We recommend fitting shut-off devices to the connec-
tion set on site. This will allow the primary and secon-
dary circuit to be shut off for maintenance work.
Secondary circuit flow (heating circuits), connec-
D
tion Cu 28 x 1.5 mm
Secondary circuit return (heating circuits DHW cyl-
E
inder), connection Cu 28 x 1.5 mm