Viessmann VITOCAL 350-A Installation And Service Instructions Manual page 50

Installation sequence
Electrical connections: Heat pump control unit
Type AWHI 351.A: Secondary pump inside the heat
pump
Fig. 46
Instantaneous heating water heater (accessories)
E
Red wires to be removed (see fig. 43 on page 48)
D X6.4 211.4
—
2.
3.
1.
Fig. 48
50
(cont.)
The following components are connected in the heat
pump control unit (see page 51 onwards):
■ Circulation pump for cylinder heating
The following components are connected in the heat
pump control panel (see separate installation instruc-
tions and page 37 onwards):
On-site secondary pump: See the following chapter
■
■ Instantaneous heating water heater
Connecting the on-site secondary pump in the
control panel
M
1~
Fig. 47
sG
4.
sG
BK
L
GN/YE
BU
N