Viessmann Vitocal 300 AWO-M-AC 301.A, Installation And Service Instructions Manual

Page: 95 / 152

95
?
L1 N
M
1~
A
C
D
E
G
1
B
aVG
1
2
3
2
3
aVD
L
N
gÖ
?
aVG
L
?
N
L1
?
N
fÖ
F
A
Connection to controller and sensor
PCB
B
External extension H1
C Temperature controller for regulat-
ing the swimming pool temperature
(floating contact, 230 V~; 0.1 A;
accessory)
D Junction box (on site)
E
Fuses and contactor for circulation
pump for swimming pool heating
(accessory)
F Circulation pump for swimming pool
heating (accessory)
G 3-way diverter valve for "swimming
pool" (zero volt: heating the heating
water buffer cylinder)
Cascade control via KM BUS
Make connections at external extension
H1
only in accordance with the following
diagram.
Installation sequence
Electrical connections in the heat pump control…
(cont.)
5692 875 GB
Installation