Viessmann VITOTRONIC 200 Quick guide

Please file in Service Binder
VITOTRONIC
r
200
VITOTRONIC
r
300-K
Vitotronic 200, Type HO1B
Digital boiler control unit
Vitotronic 300-K, Type MW2B
Weather-compensated, digital cascade control unit
for use by heating contractor
Installation and Service
Instructions
5693 976 - 02 07/2014
Vitotronic 300-K
Vitotronic 200
Product may not be exactly as shown
Read and save these instructions
for future reference.
IMPORTANT
Certified as a component
part for Viessmann boilers

Vitotronic 200 and 300-K Installation and Service
5693 976 - 02
2
General
Safety, Installation and Warranty Requirements
Please ensure that these instructions are read and understood before commencing installation. Failure to comply with
the instructions listed below and details printed in this manual can cause product/property damage, severe personal
injury, and/or loss of life. Ensure all requirements below are understood and fulfilled (including detailed information
found in manual subsections).
WARNING
Installers must follow local regulations with respect to
installation of carbon monoxide detectors. Follow the
Viessmann maintenance schedule of the boiler contained
in this manual.
Product documentation
Read all applicable documentation before commencing
installation. Store documentation near boiler in a
readily accessible location for reference in the future
by service personnel.
For a listing of applicable literature,
please see section entitled “Important
Regulatory and Safety Requirements”.
Warranty
Information contained in this and
related product documentation must
be read and followed. Failure to do
so renders the warranty null and void.
Licensed professional heating contractor
The installation, adjustment, service and maintenance
of this equipment must be performed by a licensed
professional heating contractor.
Please see section entitled
“Important Regulatory and Installation
Requirements”.
Advice to owner
Once the installation work is complete, the heating
contractor must familiarize the system operator/
ultimate owner with all equipment, as well as safety
precautions/requirements, shutdown procedure, and
the need for professional service annually before the
heating season begins.
Operating and Service Documentation
It is recommended that all product documentation such as
parts lists, operating and service instructions be handed
over to the system user for storage. Documentation is to
be stored near boiler in a readily accessible location for
reference by service personnel.

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5693 976 - 02
Vitotronic 200 and 300-K Installation and Service Table of Contents
Page
General
Preparing for Installation
Installation Sequences
Commissioning
Safety, Installation and Warranty Requirements..............2
Product documentation...........................................2
Licensed professional heating contractor...................2
Advice to owner....................................................2
Warranty...............................................................2
Operating and Service Documentation......................2
System Example....................................................5
Preparing Boilers for Cascade Mode..............................7
Overview of Electrical Connections, Vitotronic 300-K...11
Mounting the Control Unit.........................................13
Installing the Heating Circuit Ext. Mod.,
Heating Circuits 2 and 3 (Accessory)...........................13
Inserting Cables/Leads and Applying Strain Relief.........14
Connecting Sensors.................................................14
Connecting Pumps....................................................15
120V External Connection.........................................16
Connecting Actuators................................................17
Connecting the Central Fault Message Facility..............18
External Demand via Switching Contact.......................18
External Demand via 0-10V Input................................19
External Blocking via Switching Contact......................19
External “Mixing Valve Closed”/”Mixing Valve Open”...20
External Heating Program Changeover”.......................20
Making the LON Connection.......................................21
Power Supply...........................................................23
Fitting the Front Part of the Control Unit......................24
Opening the Control Unit...........................................24
Changing the Language..............................................25
Setting the Time and Date.........................................25
Configuring a Multi Boiler System...............................25
Connecting the Control Unit to the LON System...........27
Checking the Heating Circuit Assignment.....................27
Matching Coding Addresses to the System Version......28
Selecting the Boiler Sequence (if required)....................28
Checking Outputs, Actuators and Sensors...................29
.

Table of Contents
4
Page
5693 976 - 02
Vitotronic 200 and 300-K Installation and Service
Coding 1
Coding 2
Service Scans
Troubleshooting
Function Description Vitotronic 200
Function Description Vitotronic 300-K
Designs
Components
Specification
Calling Up Coding Level 1 - Vitotronic 200...................32
“General” Group.......................................................33
“Boiler” Group..........................................................33
Calling Up Coding Level 1 - Vitotronic 300-K................34
“General” Group.......................................................36
“Cascade” Group......................................................36
“DHW” Group...........................................................36
“Solar” Group...........................................................37
“Heating Circuit 1”, “Heating Circuit 2”,
“Heating Circuit 3” Group..........................................38
Calling Up Coding Level 2 - Vitotronic 200...................42
“General” Group.......................................................43
Calling Up Coding Level 2 - Vitotronic 300-K................46
“General” Group.......................................................47
“Cascade” Group......................................................52
“DHW” Group...........................................................54
“Solar” Group...........................................................56
“Heating Circuit 1”, “Heating Circuit 2”,
“Heating Circuit 3” Group..........................................59
Calling up the Service Level.......................................64
Scanning Operating Data...........................................65
Brief Scan Vitotronic 200..........................................66
Brief Scan Vitotronic 300-K.......................................67
Fault Display Vitotronic 200.......................................68
Fault Display Vitotronic 300-K....................................68
Boiler Water Temperature Control...............................75
Cascade Control.......................................................76
Heating Circuit Control..............................................79
DHW Tank Temperature Control.................................82
Connection and Wiring Diagrams................................84
Sensors..................................................................87
Extension for Heating Circuits 2 and 3 (accessory)........88
Mixing Valve Motor Kit..............................................89
Extension EA1 Accessory (optional)...........................90
Parts List.................................................................91
Specification............................................................92

5
5693 976 - 02
Vitotronic 200 and 300-K Installation and Service Preparing for Installation
System Example
Multi boiler system with several heating circuits with
mixing valve and low loss header (with/without DHW
heating)
Note: This scheme is a basic example without
shut-off valves or safety equipment.
This does not replace the need for local
engineering.
Legend
1 Multi boiler system with 2 to 8 Vitodens 200-W,
hydraulic cascade with low loss header and
connection accessories
with
2 Vitodens 200-W in cascade mode
5 Vitodens 200-W in cascade mode
3 Cascade communication module
4 Internal extension H1
6 Vitotronic 300-K
7 Outside temperature sensor ATS
qP Indirect DHW storage tank
qQ DHW temperature sensor
qW DHW recirculation pump
qZ DHW circulation pump
rP Heating circuit with mixing valve
rE Supply temperature sensor, heating circuit M2/M3
rR Heating circuit pump, heating circuit M2/M3
and
3-way mixing valve
rT Mixing valve motor kit for heating circuit with mixing
valve (mixing valve motor and supply temperature
sensor rE)
tP Low loss header
tQ Supply temperature sensor for low loss header
tW Accessories pump
tE Accessories pump

Vitotronic 200 and 300-K Installation and Service
5693 976 - 02
6
Preparing for Installation
System Example (continued)
Vitotronic 200 (set codes at every Vitotronic 200 - boiler control)
Switching mode from standalone/weather compensated control to constant temperature control (see page 10).
Required coding
Group Code
2 01:2 Multi boiler system with Vitotronic 300-K
Note: Code “00:0” is set automatically.
2
07:1
07:2
07:3
07:4
07:...
Setting the boiler number at the Vitotronic 100 of the respective boiler
Boiler 1 (factory set condition)
Boiler 2
Boiler 3
Boiler 4
... Boiler (up to 8)
Vitotronic 300-K
Required coding
Group Code
General 00:... System version, see table for coding address 00 in the overview on page 47.
General 7E:0 Without positive pressure flue gas cascade
Cascade 35:1
35:2
35:3
35:4
35:...
Do not adjust
Multi boiler system with two boilers
Multi boiler system with three boilers
Multi boiler system with four boilers (factory set condition)
Multi boiler system with ... boilers (up to 8)
Vitotronic 200-H (if installed)
Required coding
Group Code
General 97:1 The outside temperature is accepted by the LON BUS

7
5693 976 - 02
Vitotronic 200 and 300-K Installation and Service Installation Sequence
Preparing Boilers for Cascade Mode
Opening the control unit cover
For installation, commissioning, maintenance
and service of Vitodens 200-W with Vitotronic
200: see separate installation instructions and
service instructions.
If a DHW tank is to be integrated into the
system, make the connection at the Vitotronic
300-K.
1. Remove the external accessories connection box
cover.
2. Loosen the screws at the bottom of the boiler
(do not remove completely).
3. Remove the front encloser panel (lift up and pull
away from the boiler).
1. Slide both sides of the programming unit cover closed.
2. Release the hinged hooks located on both sides of
the control unit.
3. To open hinged cover, lift cover and then fold down
the control unit.
4. Release locking tabs as shown.
5. Remove cover.
Removing the front enclosure panel
IMPORTANT
The following procedure must be done on each boiler
connected to the Vitotronic 300-K.

Vitotronic 200 and 300-K Installation and Service
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8
Installation Sequence
Preparing Boilers for Cascade Mode (continued)
Installation of the communication module
The communication module is part of the standard
delivery.
1. Installing the cascade communication module to the
Vitotronic 200.
Legend
A Plug aVG to the Vitotronic 300-K
B2-wire communication cable 18 AWG
DTerminal strip on the cascade communication module
in the Vitotronic 200
Hn
Legend
AVitotronic 300-K
B2-wire communication cable 18 AWG
CBoiler with Vitotronic 200
Note: The cascade communication module must be fitted
into every Vitotronic 200.

9
5693 976 - 02
Vitotronic 200 and 300-K Installation and Service Installation Sequence
Closing the control unit cover
1. Install the cover onto the control board.
2. Flip the control board back into position.
3. Secure the locking tabs as shown.
1. Set front enclosure panel on the guide rails and
push in place.
2. Tighten screws at the bottom.
3. Insert the external accessories connection box
cover in place.
Preparing Boilers for Cascade Mode (continued)
Reinstalling the front enclosure panel

Vitotronic 200 and 300-K Installation and Service
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10
IMPORTANT
Preparing Boilers for Cascade Mode (continued)
Installation Sequence
The following procedure must be done to configure each
boiler for constant temperature control (cascade control)
mode.
1. Turn on the boiler and set the language then press
‘OK’.
2. Set the time and date and press ‘OK’.
3. Press and hold OK and until service menu comes
up.
4. Scroll using to the service functions, press OK.
5. Scroll using to the multi-boiler system.
6. Press OK.
7. Scroll using to “Yes”.
8. Press OK.
Note: The boiler will restart in cascade mode.
9. Set the language and press ‘OK’.
Refer to the boiler Installation Instructions.
Refer to the boiler Installation Instructions.

11
5693 976 - 02
Vitotronic 200 and 300-K Installation and Service Installation Sequence
Overview of Electrical Connections, Vitotronic 300-K
Electrical connections on the Vitotronic 200
see installation instructions, Vitodens 200-W.
Legend
PCB, extension for heating circuits 2 and 3 (accessory)
? M2/M3 Supply temperature sensor
sÖ M2/M3 Heating circuit pump
gS M2/M3 Mixing valve motor
Main circuit board, low voltage
! Outside temperature sensor
§/? Supply temperature sensor, common heating
flow/low loss header
%A DHW tank temperature sensor
%B DHW tank temperature sensor 2 for primary
store system (accessory)
aJB Temperature sensor primary store system
(accessories)
aVD External hook-ups
aVG KM BUS participant (Vitotronic 200 and
accessories, e.g. Vitotrol remote controls)
aVH External hook-ups
LON LON BUS, connecting cable for data exchange
with the
Vitotronic 200-H and the
Vitocom
Main PCB 120V~
sÖA1 Heating circuit pump
or
Primary pump, primary store system
sA DHW circulation pump
sK DHW recirculation pump
sL System pump
fÖ Power supply
gÖ Central fault message
gSA1 Motor for 3-way mixing valve, primary store
system
aBH Internal power supply for mixing valve extension
PCB
With
accessory
module

Vitotronic 200 and 300-K Installation and Service
5693 976 - 02
12
Installation Sequence
Overview of Electrical Connections, Vitotronic 300-K (continued)
Legend
AVitotronic 300-K
BDin rail

13
5693 976 - 02
Vitotronic 200 and 300-K Installation and Service Installation Sequence
Mounting the Control Unit
1. Fasten metal backplate onto mounting surface with
four fasteners.
2. Position midplate between backplate and connection
enclosure.
3. Install midplate and connection enclosure onto
backplate.
4. Fasten connection enclosure and midplate onto
backplate with two fasteners.
5. Install control rear section onto connection enclosure
housing. Hook control onto backplate tabs and pivot
downwards.
6. Fasten control rear section onto connection enclosure
with two fasteners.
See separate Installation Instructions.
Installing the Heating Circuit Ext. Mod., Heating Circuits 2 and 3 (Accessory)

Vitotronic 200 and 300-K Installation and Service
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14
Installation Sequence
Legend
ACables with moulded strain relief
BOn-site cables; strip up to 4 in. (100 mm) insulation.
Inserting Cables/Leads and Applying Strain Relief
Run the cables from the connection enclosure into the
control unit.
Apply strain relief to cables.
Cables with moulded strain relief clamp:
Connect cable and strain relief clamp.
OR
Fasten cable to the cable lead with cable tie.
Connecting Sensors
Installation point for outside temperature sensor
HNorth or north-western wall, 6.6 to 8.2 ft. (2 to 2.5 m)
above ground level; in multistorey buildings, in the
upper half of the second floor
HNot above windows, doors or ventilation outlets
HNot immediately below balconies or gutters
HNever render over
Outside temperature sensor connection
Two-wire communication cable, max. 120 ft. (35 m)
length, AWG 18.
Legend
!Outside temperature sensor
§/?Supply temperature sensor common flow/low loss
header
%ADHW tank temperature sensor 1
%BDHW tank temperature sensor 2 for primary store
system (optional accessory, not used)
aJBTemperature sensor primary store system
(optional accessory, not used)

15
5693 976 - 02
Vitotronic 200 and 300-K Installation and Service Installation Sequence
Connecting Pumps
Pumps 120V
Rated current: 2 A~
* Maximum pump output 6FLA shared between all
120V outputs.
** In conjunction with extension for heating circuits
2 and 3.
Legend
A120V outputs
BTo the control unit
Available pump connections
sÖM1/A1 High temperature circuit pump/
primary store pump
sÖM2 Heating circuit 2 pump
sÖM3 Heating circuit 3 pump
sA DHW pump
sK DHW recirculation pump
sL System pump

Vitotronic 200 and 300-K Installation and Service
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16
Installation Sequence
120V External Connection
120V pumps with an amperage draw of >2FLA
208/460/575V 3 phase pumps
240V pumps
Contactor specification 120VAC 1A
ADin rail
BContactor/relay (field supplied)
CPump
DPower supply w/disconnect and protection
Contactor specification 120VAC 1A
ADin rail
BContactor/relay (field supplied)
CPump
DPower supply w/disconnect and protection
Contactor specification 120VAC 1A
ADin rail
BContactor/relay (field supplied)
CPump
DPower supply w/disconnect and protection
120V pumps with an amperage draw of <2FLA
ADin rail
BPump

17
5693 976 - 02
Vitotronic 200 and 300-K Installation and Service Installation Sequence
Connecting Actuators
Available connections
gS A1 Motor for 3-way mixing valve, primary store system
gS M2 For heating circuit 2
gS M3 For heating circuit 3
Rated voltage: 120V~
Rated current Max.: 0.1 A~
Motor runtime for
3-way mixing valve: 10 to 255 sec, adjustable via
coding addresses “6A” in
the”DHW”group, “C3” in the HC2
group and “C3” in the HC3 group.
1. Disconnect power to control.
2. Install 120V or 24V valve adaptor on DIN rail inside
connection enclosure.
3. Insert the plug gS into socket gS on the Vitotronic
control.
4. Fasten cable with tie.
5. Connect black wire of the adaptor to terminals 8,9 or
10 on the Din rail.
6. Connect valve actuator wires to the adaptor terminals
Legend
A24V Mixing Valve Adaptor
BDIN Rail (in junction box)
C24V Valve Actuator
DValve
Legend
A120V Mixing Valve Adaptor
BDIN Rail (in connection enclosure)
C120V Valve Actuator
DValve
120V Valve Adaptor
Rated voltage: 120VAC
Rated current: max. 0.1 FLA
24V Valve Adaptor
Rated voltage: 24VAC
Rated current: max. 0.15 FLA
Operating time: 5 to 199 sec. selected via coding
address “40”.

Vitotronic 200 and 300-K Installation and Service
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18
Installation Sequence
Connecting the Central Fault Message Facility
Rated voltage 120V~
Rated current max. 2 A~
External Demand via Switching Contact
Connection options:
Connection at plug aVH
Extension EA1 (accessory, see page 90)
Connection
Note: ‘Live’ contacts lead to short circuits or phase failure.
The external connection must be potential-free.
Legend
AFloating contact
BPlug aVHof the control unit
When the contact is closed, burner operation is load-
dependent. The supply water is heated to the value set
in the coding address “9B” in the “General” group on the
Vitotronic 300 -K.
The supply water temperature is limited by this set
value and the electronic supply temperature maximum
limit (coding address “06” in the “Boiler” group on the
Vitotronic 200).
Legend
AFloating contact
BExtension EA1
Codes
Plug aVHNo code required.
Extension EA1 Set “5D”, “5E” or “5F” in the “General”
group to 2.

19
5693 976 - 02
Vitotronic 200 and 300-K Installation and Service Installation Sequence
External Demand via 0 – 10V Input
Demand for a system supply temperature set value.
Connection to input 0 -10V at extension EA1 (accessory).
See page 90.
0 - 1V no default set supply temperature
1V set value 50° F (10° C)
10V set value 212° F (100° C)
External Blocking via Switching Contact
Connection
Note: ‘Live’ contacts lead to short circuits or phase
failure.
The external connection must be potential-free.
AFloating contact
BPlug avD of the control unit
The burner is shut down when the contact is closed.
The boiler circuit pumps are switched off.
Note: The heating system has no frost protection while
it is blocked.
The boiler is not held at the lower boiler water
temperature.
Codes
Plug avD Set coding address “99” in the “general”
group.
Extension EA1 Set “5D”, “5E” or “5F” in the “General”
group to 3 or 4.
Connection options:
Connection at plug avD
Extension EA1 (accessory, see page 90)
Legend
AFloating contact
BExtension EA1

Vitotronic 200 and 300-K Installation and Service
5693 976 - 02
20
The mixing valves are opened Aor closed Bwhen
the contact is closed.
Note: ‘Live’ contacts lead to short circuits or phase
failure.
The external connection must be potential-free.
Legend
AExternal “Mixing valve open” (floating contact)
BExternal “Mixing valve close” (floating contact)
Connection at plug avD
Codes
External “Mixing valve open”
Via coding address “9A” in the “General” group,
this function is assigned to the heating circuits.
External “Mixing valve close”
Via coding address “99” in the “General” group,
this function is assigned to the heating circuits.
External “Mixing Valve Close”/”Mixing Valve Open”
Installation Sequence
External Heating Program Changeover
Connection
Note: ‘Live’ contacts lead to short circuits or phase
failure.
The external connection must be potential-free.
Connection options:
Connection at plug avD
Extension EA1 (accessory, see page 90)
AFloating contact
BPlug avD of the control unit
Codes
Plug avD Via coding address “91” in the “General”
group, the function can be assigned to
the heating circuits.
Extension EA1 Set “5D”, “5E” or “5F” in the “General”
group to 1.
Via coding address “D8” in the “Heating
circuit...” group, the function can be
assigned to the heating circuits.
Legend
AFloating contact
BExtension EA1
The changeover can be separate for heating circuits
1 to 3.