Viessmann Vitodens 200, Service Instructions Manual

Page: 98 / 116

Connection and wiring diagrams
Connection and wiring diagramĂćĂheating components
99/100
5692Ă485ĂGB
*1
Only for constant temperature mode;
only one clock thermostat may be connected.
*2
Only for weather-compensated mode.
*3
Communication module required (accessory).
*4
Internal reference potential.
*5
Remove jumperĂX
Ă
4.1
Ă
Ć
Ă
X
Ă
4.2 when making this
connection.
*6
Observe the coding address settings.
*7
Only with low loss header.
For the internal connections,
plug contacts are incrementally
counted from right to left.
Only one function/accessory
must be allocated to any one
connection.
Air
pressure
sensor
Gas
combination
unit
Impulse
ignition
unit
Ignition
and
ionisation
Boiler
temp-
erature
sensor
High limit
temperature
switch
Flow
switch
or or or (or) or or or
WS/RS
remote
control
unit (acc.)
*2
M clock
thermostat
(accessory)
7450024
*1
External op. mode
changeover or
external demand
(on site) *2 *5 *6
F clock
thermostat
7450023
or
cascade
controller
7450670
(accessory)
*1 *5
A clock
thermostat
9544556
(accessory)
*1 *5
Connection
central faults
display via
adaptor 7404582
(accessory)
Solartrol
7450125
(accessory)
*2 *3
Mixer
extension set
7450058 *2
and/or
Vitocom 100
(accessory)
Connection of
heating circuit
control unit or
Vitocom 200/300
* 2 *3
(accessory)
Wall-mounting
bracket with
programming
unit *2
(accessory)
External burner
blocking reset
(on site)
X6 to VR 20
as follows:
(on site)
Outside
temperature
sensor
*2
DHW
cylinder
temp.
sensor
(part of
DHW cyl.
connec-
tion set)
Flow
temp.
sensor
*7
Connection
for LPG via
adaptor 7404582 -
separate installation
instructions
(accessory)
EXTERNAL CONNECTIONS
INTERNAL ASSEMBLIES
SEE PART 1
POWER SUPPLY UNIT
EXTERNAL PUMP
CONNECTIONS
SEE PART 1
MAIN CIRCUIT BOARD
PART 2
A1
LGM 29 burner control unit
INTERNAL CONNECTIONS
auxiliary valve
Jumper