Viessmann VITOCAL 242-S Installation And Service Instructions Manual page 61

Power supply
(cont.)
H Economy tariff meter
K Feed: TNC system
Mains power supply in conjunction with on-site power consump-
tion
Without power-OFF
A
F
G
kWh
L
N
A Heat pump
B Additional consumers (of power
generated on site) in the house-
hold
F
H
kWh
M
N
Installation sequence
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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