Viessmann Vitocal 252-A Series - Page 75

75
HPMU electronics module: Accessory 230 V~ and BUS connection
? ?
L
N
1
F1 T6.3 A
5 1
L H L H
? ? ?
L
N
?
L
N
X5X4
74
96P2P115615640
9191
L
N
L
N N
?
L
Fig. 55
F1 Fuse 6.3 A H (slow)
Make all connections with flexible cables.
230 V~ connections
Terminals Component Explanation
156.N
156.
156.L
Switched mains output for mains connec-
tion, accessories, e.g. mixer extension kit
■
Output: 230 W
■
Voltage: 230 V~
■
Max. switching current: 1 A
Recommended flexible connecting cable:
■
3 x 1.5 mm
2
■
Max. cable length: 50 m
Electrical connections
Electrical connection of the indoor unit (cont.)
6222080
Installation