Viessmann KWT BW 301.B090, Инструкция по установке и обслуживанию

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37
Note
■ Route 230 V cables and LV leads separately and
bundle them close to the terminals. This ensures
that, in the event of a fault, e.g. when detaching a
wire, the wires cannot drift into the adjacent voltage
area.
■ Strip the insulation as close to the terminals as pos-
sible.
■ If 2 components are connected to the same terminal,
press both cores together in a
single wire ferrule.
Wiring chamber, top
D
F3
L
K
H
M
G
W
U
V
C
F
Fig.31
C
Contactors for primary and secondary pumps
D
Terminal strip for system components (consumers)
3 x 400 V~/230 V~ (for connection, see separate
"Connection and wiring diagram" sheet 13).
Switched phase can be used for on-site system
components. Observe max. output.
F
EEV PCB
G
Main PCB with extension PCB
H
F3 MCB/Fuse 6.3 A (slow)
K Controller and sensor PCB
L
X24 Slot for LON communication module
M
X31 Coding card slot
U
MCB/fuse, power circuit, system components (con-
sumer at terminal strip
D
, see separate "Connec-
tion and wiring diagram" sheet 13 "13FC2")
V
MCB/fuse, control circuit (see separate "Connec-
tion and wiring diagram" sheet 13 "13FC6")
W
Message and safety connections (safety chain)
with distribution terminal
Installation sequence
Overview of electrical connections
5549 984 GB
Installation