44
A
[{S
DE
[{{]
0-10V
f-]
A
[{A
DE
[{D
DE
+ -
5 6
3 4
1 2
1 2
B
L1
N
H
L1 N
M
1~
C
D
F G
E
K
Fig. 33
A
EA1 extension
B
Power supply 1/N/PE 230 V/50 Hz
C
Junction box (on site)
D
Fuses and contactor for circulation pump for swim-
ming pool heating (accessories)
E
Jumper
F
3-way diverter valve for "Swimming pool" (zero
volt: heating the heating water buffer cylinder)
G
Circulation pump for swimming pool heating
(accessories)
H
Temperature controller for swimming pool temper-
ature control (floating contact: 230 V~, 0.1 A,
accessories)
K
KM-BUS connection to the controller and sensor
PCB
Cascade control via LON
The following communication modules (accessories)
must be fitted in the heat pump control units:
■
LON cascade communication module in the lead
heat pump
■
LON communication module in lag heat pumps
Make connections for LON
only
in accordance with
separate "Connection and wiring diagram".
Electric booster heater (on-site)
Only on-site appliances can be used (e.g. instantane-
ous heating water heater, immersion heater in heating
water buffer cylinder).
■
Connection
:
–
Appliance installation instructions
–
Electrical connection, see separate "Connection
and wiring diagram".
■
Installation in the Vitocal 300-G Pro is
not
possible.
Installation sequence
Electrical connections
(cont.)
5838144
Installation
Summary of Contents for Vitocal 300-G Pro BW 302.D090
Page 90: ...90 5838144...
Page 91: ...91 5838144...
