Viessmann C3TB, Installation And Service Instructions For Contractors

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18
Connection for excess export without power storage system
On-site energy consumption to paragraphs 33 and 4(3)
KWK [Germany]
B
C
D
E
F
G
K
L
Z2b
A
N
O
H
1~/N/PE
M
400 V / 230 V~
~
P
kWh
Z1
kWh
Z3
kWh
Z3b
G
K
L
Z2a
=
R
S
T
1~/N/PE
~
Fig. 12
A Low voltage grid
B
Main power supply
C
Domestic distribution box
D
Property boundary
E
Grid operator
F
Customer
G
Power distribution
H
On-site consumers
K Short circuit protection
L
Overload protection, RCD
M
Vitovalor 300-P
N
GS protection
O
Inverter (DC/AC converter) S
EMAX
= 1.5 kVA
P
Fuel cell
R
GS protection for PV system
S PV inverter
T
Photovoltaic system
Z1 Balancing bi-directional meter (observe meter cir-
cuit)
Electricity meter for power export and drawing
Z2a Export/generation meter, PV system power gen-
eration
Z2b Export/generation meter for power generation by
Vitovalor 300-P (standard delivery with
Vitovalor 300-P)
Z3 Bi-directional energy management meter
(optional, not relevant to billing by the grid opera-
tor)
Z3b Export/generation meter for Vitovalor 300-P alone
Preparing for installation
Notes on connecting to the mains supply
(cont.)
5775 636 GB
Installation