Viessmann VITOTRONIC 300 Quick guide

Installation and service instructions
for contractors
VIESMANN
Vitotronic 300
Type CM1E
Weather-compensated control unit for a multi boiler system (cascade) and to con-
trol the boiler water temperature
Vitotronic 100
Type CC1E
Control of the boiler water temperature for each additional boiler in the cascade
With BASE E control unit
VITOTRONIC 300
VITOTRONIC 100
5863747 GB 10/2019 Please keep safe.

2
Please follow these safety instruc-
tions closely to prevent accidents
and material losses.
Safety instructions explained
Danger
This symbol warns against the risk
of injury.
!Please note
This symbol warns against the risk
of material losses and environmen-
tal pollution.
Note
Details identified by the word "Note"
contain additional information.
Target group
These instructions are exclusively inten-
ded for qualified contractors.
■Work on gas installations may only be
carried out by a registered gas fitter.
■Work on electrical equipment may only
be carried out by a qualified electrician.
■The system must be commissioned by
the system installer or a qualified per-
son authorised by the installer.
Regulations to be observed
■National installation regulations
■Statutory regulations for the prevention
of accidents
■Statutory regulations for environmental
protection
■Codes of practice of the relevant trade
associations
■Relevant country-specific safety regu-
lations
Safety instructions for working on the system
Working on the system
■Where gas is used as the fuel, close
the main gas shut-off valve and safe-
guard it against unintentional reopen-
ing.
■Isolate the system from the power sup-
ply, e.g. by removing the separate fuse
or by means of a mains isolator, and
check that it is no longer live.
■Safeguard the system against recon-
nection.
■Wear suitable personal protective
equipment when carrying out any work.
Safety instructions
Safety instructions
5863747

3
Danger
Hot surfaces and fluids can lead to
burns or scalding.
■Before maintenance and service
work, switch OFF the appliance
and let it cool down.
■Never touch hot surfaces on the
boiler, burner, flue system or pipe-
work.
!Please note
Electronic assemblies can be dam-
aged by electrostatic discharge.
Prior to commencing work, touch
earthed objects such as heating or
water pipes to discharge static
loads.
Repair work
!Please note
Repairing components that fulfil a
safety function can compromise the
safe operation of the system.
Replace faulty components only
with genuine Viessmann spare
parts.
Auxiliary components, spare and
wearing parts
!Please note
Spare and wearing parts that have
not been tested together with the
system can compromise its func-
tion. Installing non-authorised com-
ponents and making non-approved
modifications or conversions can
compromise safety and may invalid-
ate our warranty.
For replacements, use only original
spare parts supplied or approved by
Viessmann.
Safety instructions
Safety instructions (cont.)
5863747

4
Safety instructions for operating the system
If you smell gas
Danger
Escaping gas can lead to explo-
sions which may result in serious
injury.
■Do not smoke. Prevent naked
flames and sparks. Never switch
lights or electrical appliances on
or off.
■Close the gas shut-off valve.
■Open windows and doors.
■Evacuate any people from the
danger zone.
■Notify your gas or electricity sup-
ply utility from outside the building.
■Have the power supply to the
building shut off from a safe place
(outside the building).
If you smell flue gas
Danger
Flue gas can lead to life threatening
poisoning.
■Shut down the heating system.
■Ventilate the installation site.
■Close doors to living spaces to
prevent flue gases from spread-
ing.
What to do if water escapes from the
appliance
Danger
If water escapes from the appliance
there is a risk of electrocution.
Switch OFF the heating system at
the external isolator (e.g. fuse box,
domestic distribution board).
Danger
If water escapes from the appliance
there is a risk of scalding.
Never touch hot heating water.
Condensate
Danger
Contact with condensate can be
harmful to health.
Never let condensate touch your
skin or eyes and do not swallow it.
Flue systems and combustion air
Ensure that flue systems are clear and
cannot be sealed, for instance due to
accumulation of condensate or other
external causes.
Ensure an adequate supply of combus-
tion air.
Inform system users that subsequent
modifications to the building characteris-
tics are not permissible (e.g. cable/pipe-
work routing, cladding or partitions).
Danger
Leaking or blocked flue systems, or
an inadequate supply of combus-
tion air can cause life threatening
poisoning from carbon monoxide in
the flue gas.
Ensure the flue system is in good
working order. Vents for supplying
combustion air must be non-seala-
ble.
Extractors
Operating appliances that exhaust air to
the outside (extractor hoods, extractors,
air conditioning units, etc.) can create
negative pressure. If the boiler is oper-
ated at the same time, this can lead to a
reverse flow of flue gas.
Safety instructions
Safety instructions (cont.)
5863747

5
Danger
The simultaneous operation of the
boiler and appliances that exhausts
air to the outside can result in life
threatening poisoning due to a
reverse flow of flue gas.
Fit an interlock circuit or take suita-
ble steps to ensure an adequate
supply of combustion air.
Safety instructions
Safety instructions (cont.)
5863747

6
1. Liability ................................................................................................................ 15
2. Information Disposal of packaging ............................................................................ 16
Symbols ................................................................................................. 16
Intended use .......................................................................................... 16
Product information ................................................................................ 17
System examples .................................................................................. 17
Spare parts lists ..................................................................................... 17
3. Installation sequence Installing the extension for heating circuits 2 and 3 ............................... 18
Installing the LON communication module ............................................ 18
Inserting the coding card ....................................................................... 18
Adjusting the high limit safety cut-out (if required) ................................. 19
■Example: Conversion to 100 °C ......................................................... 19
Adjusting the temperature controller (if required) .................................. 20
■Example: Conversion to 100 °C ......................................................... 20
Mounting control unit front ..................................................................... 21
Opening the control unit ......................................................................... 22
Inserting cables and applying strain relief .............................................. 22
4. Electrical connections Overview of electrical connections ........................................................ 23
Connecting the extension for heating circuits 2 and 3 ........................... 25
Connecting the network module ............................................................ 26
Connecting sensors ............................................................................... 26
■Outside temperature sensor ............................................................... 27
Connecting pumps ................................................................................. 27
■Pumps 230 V~ .................................................................................... 28
■230 V~ pumps with power consumption greater than 2 A or high effi-
ciency circulation pumps .................................................................... 28
■Pumps 400 V~ .................................................................................... 29
■Pumps in the underfloor heating circuit .............................................. 30
■Temperature limiter for maximum temperature limiter (accessories) .. 30
Connecting actuators ............................................................................. 31
Connecting a central fault message facility ........................................... 31
External functions .................................................................................. 32
■Overview of external functions ........................................................... 32
■External blocking (boiler, system) ....................................................... 32
■Adding external boiler as last in boiler sequence ............................... 33
■External changeover of multi stage/modulating burners .................... 34
■External demand, common system flow temperature ........................ 35
■External operating program changeover (heating circuits) ................. 36
Connecting external safety equipment .................................................. 36
Provisional burner operation .................................................................. 37
Connecting an AC burner ...................................................................... 38
■Pressure-jet oil/gas burner ................................................................. 38
■Viessmann MatriX burner for Vitocrossal ........................................... 38
Connecting a three-phase burner .......................................................... 40
■Potential-free safety chain .................................................................. 40
■Safety chain not potential-free ............................................................ 41
Making the LON connection .................................................................. 41
■Connection examples ......................................................................... 42
Power supply ......................................................................................... 42
■Control unit power supply ................................................................... 44
■Power supply for the control unit via a mains filter unit ...................... 44
5. Commissioning Commissioning the system .................................................................... 46
■Repeating commissioning .................................................................. 46
Required parameters ............................................................................. 46
■Adjust control unit to 2-stage burner ................................................... 46
■Matching the control unit to the modulating burner ............................ 47
Index
Index
5863747

7
■Vitotronic 300 ...................................................................................... 48
■Vitotronic 100 ...................................................................................... 48
Integrating the control unit into LON ...................................................... 49
■Example of a multi boiler system ........................................................ 49
■Carrying out the LON subscriber check .............................................. 50
Selecting the boiler sequence at the Vitotronic 300 ............................... 51
Adjusting the heating curve ................................................................... 51
■Adjusting the set room temperature ................................................... 52
■Changing the slope and level ............................................................. 53
Testing the high limit safety cut-out ........................................................ 53
Checking outputs (actuator test) ............................................................ 53
6. Parameter levels Parameter levels .................................................................................... 56
Calling up parameter levels ................................................................... 56
■Parameter groups ............................................................................... 56
Resetting parameters to their delivered condition ................................. 56
7. Parameters, Vitotronic 300 General, Vitotronic 300 .......................................................................... 57
■00 System scheme ! ........................................................................ 57
■02 Test display conditions ................................................................... 57
■03 Temperature display ...................................................................... 57
■05 Operation enabled/disabled. .......................................................... 57
■06 Time constant for calculating the adjusted outside temperature ... 58
■0B Set flow temperature for external demand ! ............................... 58
■0C Differential temperature for raising the set flow temperature ........ 58
■12 Wireless outside temperature sensor ............................................ 58
■13 Wireless base station .................................................................... 58
■14 Fault message module 1 ............................................................... 58
■15 Fault message module 2 ............................................................... 59
■16 Burner control unit connection ....................................................... 59
■19 Extension, heating circuit 2 and heating circuit 3 .......................... 59
■1A Solar control unit ........................................................................... 59
■1B Pump module PM1 ........................................................................ 59
■1F DHW circulation pump ................................................................... 59
■2B Show energy consumption ! ....................................................... 59
■30 Extension AM1 .............................................................................. 60
■31 Function, output A1 at extension AM1 ........................................... 60
■32 Function, output A2 at extension AM1 ........................................... 60
■33 Run-on time for circulation pump, neutralising system at output 1
at AM1 extension ................................................................................ 60
■34 Run-on time for circulation pump, neutralising system at output 2
at AM1 extension ................................................................................ 60
■40 Extension EA1 ............................................................................... 61
■41 Function, output 157 at extension EA1 .......................................... 61
■42 Function, input DE1 at extension EA1 ........................................... 61
■43 Function, input DE2 at extension EA1 ........................................... 61
■44 Function, input DE3 at extension EA1 ........................................... 62
■46 Demand 0 to 10 V, EA1 extension ................................................. 62
■47 DHW circulation pump runtime for brief operation ......................... 62
■50 Return temperature control ............................................................ 62
■51 Sensor 17A .................................................................................... 62
■52 Sensor 17B .................................................................................... 63
■53 Connection at plug 20A1 ............................................................... 63
■54 Connection at plug 29 .................................................................... 63
■55 Connection at plug 52A1 ............................................................... 63
■56 Runtime, servomotor, butterfly valve/return temperature con-
trol ! ................................................................................................. 63
■57 Run-on time, shunt pump, boiler circuit pump or distribution
pump ................................................................................................... 64
■62 Central control of heating circuits .................................................. 64
Index
Index
5863747

8
■70 Display correction for outside temperature .................................... 64
■76 Communication module ................................................................. 64
■77 LON subscriber number ! ........................................................... 64
■78 Communication LON ..................................................................... 65
■79 LON communication module: Fault manager ................................ 65
■7B LON communication module: Time ............................................... 65
■7F Building type ! ............................................................................. 65
■80 Fault messaging delay ................................................................... 65
■81 Automatic summer/wintertime changeover ! .............................. 66
■82 Summer time starts: Month ! ...................................................... 66
■83 Summer time starts: Week of the selected month ! .................... 66
■84 Summer time starts: Day of the selected week ! ........................ 66
■85 Winter time starts: Month ! ......................................................... 67
■86 Winter time starts: Week of the selected month ! ....................... 67
■87 Winter time starts: Day of the selected week ! ........................... 67
■93 Central fault message during emissions test function/service dis-
play ..................................................................................................... 67
■97 LON communication module: Outside temperature ...................... 68
■98 Viessmann system number ........................................................... 68
■9C LON subscriber monitoring ........................................................... 68
Boiler, Vitotronic 300 .............................................................................. 69
■02 Burner type ! ............................................................................... 69
■03 Boiler protection, gas/oil operation ! ........................................... 69
■04 Switching hysteresis burner ........................................................... 69
■05 Burner curve ! ............................................................................. 69
■06 Maximum boiler water temperature limit ! .................................. 70
■08 Maximum burner output in kW ! ................................................. 70
■09 Maximum burner output in 100 kW ! .......................................... 70
■0A Burner base load ! ...................................................................... 70
■0C Function butterfly valve ................................................................. 71
■0D Function therm control ! ............................................................. 71
■13 Shutdown differential ..................................................................... 71
■14 Minimum burner runtime ................................................................ 71
■15 Runtime servomotor mod. burner ! ............................................. 72
■16 Burner offset with start optimisation ............................................... 72
■1A Start optimisation .......................................................................... 72
■1B Time from burner ignition to the start of control ............................. 72
■1C Signal B4 at plug 41 ...................................................................... 72
■1F Flue gas temperature sensor ! ................................................... 73
■21 Interval in burner hours until the next service ! ........................... 73
■23 Interval until the next service ! .................................................... 73
■24 Service status ! ........................................................................... 73
■26 Burner fuel consumption (stage 1) ................................................ 73
■27 Burner fuel consumption (stage 1) ................................................ 73
■28 Burner interval ignition ................................................................... 73
■29 Burner fuel consumption (stage 2) ................................................ 74
■2A Burner fuel consumption (stage 2) ................................................ 74
■2B Max. preheating time of butterfly valve ......................................... 74
■2C Max. run-on time of butterfly valve ................................................ 74
■2D Shunt pump ................................................................................... 74
Cascade, Vitotronic 300 ......................................................................... 75
■00 Number of boilers connected to the cascade ! ........................... 75
■01 Minimum system flow temperature limit ! ................................... 75
■02 Maximum system flow temperature limit ! .................................. 75
■03 Lead boiler or boiler sequence changeover ! ............................. 75
■04 Permanent lead boiler ! .............................................................. 75
■05 Permanent last boiler ! ............................................................... 76
■06 Type of control ! .......................................................................... 76
■07 Control strategy ! ........................................................................ 76
■08 Output statement ! ...................................................................... 76
Index
Index
5863747

9
■09 Distribution pump ........................................................................... 76
■0A Cylinder priority control ................................................................. 77
■0B Start integral threshold ! ............................................................. 77
■0C Stop integral threshold ! ............................................................. 77
■0D Stop differential ! ........................................................................ 77
■0E Controller amplification VT controller ............................................ 77
■0F Controller integral time VT controller TN ....................................... 77
■20 ECO threshold boiler 1 ! ............................................................. 78
■21 ECO threshold boiler 2 ! ............................................................. 78
■22 ECO threshold boiler 3 ! ............................................................. 78
■23 ECO threshold boiler 4 ! ............................................................. 78
■24 ECO threshold boiler 5 ! ............................................................. 78
■25 ECO threshold boiler 6 ! ............................................................. 79
■26 ECO threshold boiler 7 ! ............................................................. 79
■27 ECO threshold boiler 8 ! ............................................................. 79
DHW, Vitotronic 300 .............................................................................. 79
■00 Tank heating ! ............................................................................. 79
■01 Selection of set DHW temperature ................................................ 80
■03 Additional function for increased DHW heating ............................. 80
■04 Cylinder heating: Set start point .................................................... 80
■05 Set flow temperature for cylinder heating ...................................... 80
■06 Differential, set boiler water temperature to set DHW temperature 80
■07 Circulation pump for cylinder heating ............................................ 81
■08 Circulation pump run-on ................................................................ 81
■0A In comfort mode and after external changeover to constant oper-
ation with the standard room temperature .......................................... 81
■0B Input of the set DHW temperature ................................................ 81
■0C For solar DHW heating: DHW temperature target ! ................... 82
■0D With 2 tank temperature sensors: Tank heating stop point ........... 82
■0E With 2 tank temperature sensors: Tank heating start point ........... 82
■0F Runtime, actuator, mixing valve, heat exchanger set, Vitotrans
222 ...................................................................................................... 82
■11 Runtime, primary cylinder loading pump, heat exchanger set ....... 82
■13 DHW circulation pump for DHW heating ....................................... 83
■14 DHW circulation pump for auxiliary function DHW heating ........... 83
■15 Enable DHW circulation pump ! ................................................. 83
■16 DHW circulation pump in economy mode ..................................... 83
Solar, Vitotronic 300 ............................................................................... 84
■00 Start temperature differential, solar circuit pump ........................... 84
■01 Stop temperature differential, solar circuit pump ........................... 84
■02 Speed control, solar circuit pump .................................................. 84
■03 Temperature differential for start of speed control ......................... 84
■04 Controller amplification of speed control ....................................... 84
■05 Min. speed, solar circuit pump ....................................................... 84
■06 Max. speed, solar circuit pump ...................................................... 85
■07 Interval function, solar circuit pump ............................................... 85
■08 Maximum cylinder temperature ..................................................... 85
■09 Maximum collector temperature .................................................... 85
■0A Stagnation time reduction ............................................................. 85
■0B Frost protection function for solar circuit ....................................... 85
■0C Delta T monitoring ......................................................................... 86
■0D Night DHW circulation monitoring ................................................. 86
■0E Calculation of solar yield ............................................................... 86
■0F Flow rate, solar circuit at max. pump speed .................................. 86
■10 Target temperature control ............................................................ 86
■11 Set DHW temperature, solar .......................................................... 86
■12 Minimum collector temperature ..................................................... 87
■20 Extended control function .............................................................. 87
■22 Start temperature differential for central heating backup ............... 87
■23 Stop temperature differential for central heating backup ............... 87
Index
Index
5863747

10
■24 Start temperature for thermostat function ...................................... 88
■25 Stop temperature for thermostat function ...................................... 88
■26 Priority for DHW cylinder ............................................................... 88
■27 Cyclical heating time ...................................................................... 88
■28 Cyclical pause time ........................................................................ 88
Heating circuit 1, heating circuit 2, heating circuit 3, Vitotronic 300 ....... 89
■00 Remote control recognition ............................................................ 89
■01 Remote control blocking ................................................................ 89
■02 Cylinder priority control ! ............................................................. 89
■03 Temperature limits, frost protection function .................................. 90
■04 Frost protection .............................................................................. 90
■05 Heating limit: Economy function: Outside temperature ! ............ 91
■06 Heating limit: Complete summer economy control ! ................... 91
■07 Mixer economy function ! ........................................................... 91
■08 Pump idle time ! .......................................................................... 92
■09 Output reduction ............................................................................ 92
■0A Room temperature hook-up ! ..................................................... 92
■0C Room influence factor ................................................................... 92
■0E Economy function: Room temperature ! .................................... 93
■0F Quick heat-up/quick setback ......................................................... 93
■10 Start optimisation ........................................................................... 93
■11 Heat-up gradient start optimisation ................................................ 93
■12 Learning start optimisation ............................................................ 94
■13 Shutdown time optimisation ........................................................... 94
■14 Stop optimisation of setback time offset ........................................ 94
■15 Learning shut-down time optimisation ........................................... 94
■16 Mixer runtime ................................................................................. 94
■17 System dynamics mixer ................................................................. 95
■18 Minimum flow temperature limit, heating circuit ! ....................... 95
■19 Maximum flow temperature limit, heating circuit ! ...................... 95
■1B Room influence limit ...................................................................... 95
■1F External operating program changeover ! .................................. 95
■20 Extension EA1: Operating program changeover ! ...................... 96
■21 Setting range, set day temperature ............................................... 96
■22 Correction, actual room temperature ............................................. 96
■23 Screed drying ! ........................................................................... 96
■24 Time limit for comfort mode ! ...................................................... 97
■25 Outside temperature limit for cancelling reduced set room tem-
perature ! ......................................................................................... 98
■26 Outside temperature limit for raising the reduced set room tem-
perature to the standard set room temperature ! ............................. 98
■27 Raising the set boiler water or flow temperature when switching
from operation with reduced room temperature to operation with
standard room temperature ! ........................................................... 98
■28 Duration for raising the set boiler water or flow temperature ! .... 98
8. Parameters, Vitotronic 100 General, Vitotronic 100 .......................................................................... 99
■00 System scheme ! ........................................................................ 99
■01 Single and multi boiler systems ..................................................... 99
■02 Test display conditions ................................................................... 99
■03 Temperature display ...................................................................... 99
■05 Operation enabled/disabled. .......................................................... 99
■14 Fault message module 1 ............................................................... 99
■15 Fault message module 2 ............................................................... 99
■16 Burner control unit connection .......................................................100
■1A Solar control unit ........................................................................... 100
■1B Pump module PM1 ........................................................................100
■20 Flow temperature sensor for low loss header ................................100
■2B Show energy consumption ! .......................................................100
■30 Extension AM1 .............................................................................. 100
Index
Index
5863747