Viessmann VITOCAL 222-S Installation And Service Instructions Manual page 59

Power supply
(cont.)
G Ripple control receiver (contact
open: power-OFF enabled) with
backup fuse
Power supply in conjunction with own energy consumption
Without power-OFF
A
F
G
kWh
L
N
A Heat pump
B Additional consumers in the house-
hold (powered by self-generated
electricity)
F
H
kWh
M
N
Installation sequence
H Economy tariff meter
K Feed: TNC system
L Mains isolator
B
A
C
F
E
N E1E2 D /D
L1 L1 L2 L2 L3 L3
L
C Electricity meter
D Inverter
E Isolator for the PV system
F Terminal
~ ~
=
D
F
K
kWh
M
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