56
?
L1
L2
L3
M
3~
A
C
D
E
G
1
B
aVG
1
2
3
2
3
aVD
L
N
gÖ
?
aVG
L
?
N
L1
?
N
fÖ
F
Fig. 53
A
Connection to controller and sensor PCB
B
External H1 extension
C
Temperature controller for regulating swimming
pool temperature (floating contact, 230 V~, 0.1 A,
accessories)
D
Junction box (on site)
E
Fuses and contactor for circulation pump for swim-
ming pool heating (accessories)
F
Circulation pump for swimming pool heating
(accessories)
G
3-way diverter valve "Swimming pool" (zero volt:
Charging the heating water buffer cylinder)
Cascade control via KM BUS
Make connections to external extension H1
only
according to the following diagram.
Installation sequence
Heat pump control unit electrical connections
(cont.)
5692878
Installation
Summary of Contents for Vitocal 350-A AWHI 351.A14
Page 82: ...82 Troubleshooting Repairs cont 5692878 Maintenance ...
Page 101: ...101 Parts list type AWHI 351 A Heat pump module cont 5692878 Components ...
Page 104: ...104 Parts list type AWHI 351 A Base frame cont 5692878 Components ...
Page 125: ...125 Parts list type AWHO 351 A Heat pump module cont 5692878 Components ...