Connection And Wiring Dia - Viessmann VITOTRONIC 200 Installation And Service Instructions Manual

Connection and wiring diagram
Connection and wiring diagram
A B
Fig.76
Type KO1B: Pushbutton
A
Type KO2B: Terminals
B
A1 Main PCB
A2 Power supply unit PCB
A3 PCB
A5 Programming unit
A6 Coding card
A11 Optolink PCB
X Electrical interfaces
F1 MCB/fuse
F6 High limit safety cut-out 110 °C (100 °C)
F7 Temperature controller 75 °C (87 °C, 95 °C)
K1-K4 Relay
S1 ON/OFF switch
S2 Test key (only for type KO1B)
U1 to U3 Optocoupler
V1 Fault indicator (red)
V2 ON indicator (green)
Plug 230 V~
Heating circuit pump A1 (accessories)
sÖ
Circulation pump for cylinder heating (accesso-
sA
ries)
DHW circulation pump (on site)
sK
Power supply, 230 V/50 Hz
fÖ
Oil/gas burner (connection according to DIN
fA
4791)
114
Power supply, accessories/external demand/
lH
external blocking
X12 External burner start
(stage 1)
LV plug
Outside temperature sensor (radio clock receiver
!
(accessories))
Boiler water temperature sensor
§
Cylinder temperature sensor
%
Buffer temperature sensor (accessories)
)
Flue gas temperature sensor (accessories)
aG
KM BUS subscriber (accessories)
aVG
Two-stage/modulating burner extension
a:A
(part of the standard boiler delivery)