20
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
Z4
Power storage management bi-directional meter
(power storage system standard delivery)
Cable sizing
Inadequate cross-sections result in yield losses when
generating power. Consequently, select larger cross-
sections for the Vitovalor 300-P power cable than is
technically required. Cross-sections recommended in
line with economic considerations:
Cable lengths in m
Recommended cable
≤
35
NYM 3 x 2.5 mm
2
> 35
≤
55
NYM 3 x 4 mm
2
> 55
≤
80
NYM 3 x 6 mm
2
Fuse protection
The Vitovalor 300-P has been factory-tested as a unit
that is ready for connection. Only an adequately sized
power cable needs to be connected on site. This cable
should be routed either to the main LV distribution
board (mains distribution or meter cupboard) or to the
nearest suitable sub-distribution board. The
Vitovalor 300-P is protected by a mains isolator.
Depending on the nature of the domestic grid, or as
required by DIN VDE 0100-410, a residual current
device (RCD) may also be required.
!
Please note
Switching off by means of an emergency stop
switch for the heating system can damage the
appliance.
Remove any emergency stop switches from the
existing heating system.
Mains isolator:
■
B response characteristics
■
1-pole
■
Response current 10 A
■
Design breaking capacity to EN 60898: 10 kA
■
Design voltage 230 V/400 V
∼
RCD:
■
RCD 25 A
■
2-pole
■
Response current 10 A
■
For AC and pulsating DC fault currents
■
Design residual current 30 mA
■
Design voltage 230/400 V
∼
■
Surge current resistance 1 kA
Never install the Vitovalor 300-P downstream of exist-
ing fuses/MCBs. In the case of a consumer short cir-
cuit there is a risk that high currents may flow which
are impermissible and load the cables to excess.
During installation, the electrician must also test the
selectivity of the residual current device (RCD) and the
protective equipment (overload/short circuit protection)
Preparing for installation
Notes on connecting to the mains supply
(cont.)
5775 636 GB
Installation
Содержание C3TB
Страница 44: ...44 3 5 1 2x 2 4 7 6 Fig 43 Installation sequence Fitting the front panels 5775 636 GB Installation ...
Страница 48: ...48 14 Fig 47 Installation sequence If required for easier handling Dismantling cont 5775 636 GB Installation ...
Страница 136: ...136 Troubleshooting Repairs gas condensing module cont 5775 636 GB Diagnosis ...
Страница 143: ...143 Parts lists Heat cell assembly 5775 636 GB Components ...
Страница 148: ...148 0001 0001 0003 0003 0002 0002 0004 Fig 118 Parts lists External connection assembly 5775 636 GB Components ...
Страница 154: ...154 0006 0003 0005 0001 0002 0004 Fig 121 Parts lists Miscellaneous assembly 5775 636 GB Components ...
Страница 160: ...160 Parts not shown 0009 PCB IU100 B30 Parts lists Fuel cell assembly 5775 636 GB Components ...
Страница 161: ...161 Parts lists Fuel cell assembly cont 5775 636 GB Components ...
Страница 187: ...187 5775 636 GB ...