Viessmann VITOTRONIC 200 Operating instructions

Service instructions
for contractors
VIESMANN
Vitotronic 200
Type WO1A
Heat pump control unit
For applicability, see the last page
VITOTRONIC 200
5692 861 GB 8/2010 Please keep safe.

2
Please follow these safety instructions closely to prevent accidents and mate-
rial 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 envi-
ronmental pollution.
Note
Details identified by the word "Note" con-
tain additional information.
Target group
These instructions are exclusively
designed for qualified personnel.
■ Work on electrical equipment must
only be carried out by a qualified elec-
trician.
■ The system must be commissioned by
the system installer or a qualified per-
son authorised by the installer.
Regulations
Observe the following when working on
this system
■ National installation requirements
■ All legal instructions regarding the pre-
vention of accidents,
■ All legal instructions regarding envi-
ronmental protection,
■ The Code of Practice of relevant trade
associations
■ All current safety regulations as
defined by DIN, EN, DVGW, VDE and
all locally applicable standards
aÖNORM, EN and ÖVE
cSEV, SUVA, SVTI and SWKI
Working on the system
■ Isolate the system from the power sup-
ply and check that it is no longer 'live',
e.g. by removing the separate fuse or
by means of a main isolator.
Note
In addition to the control circuit, there
may be several power circuits.
■ Safeguard the system against unau-
thorised reconnection.
!Please note
Electronic modules can be dam-
aged by electrostatic dis-
charges.
Before beginning work, touch
earthed objects, such as heating
or water pipes, to discharge static
loads.
Safety instructions
Safety instructions
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3
Repair work
!Please note
Repairing components that fulfil a
safety function can compromise
the safe operation of your sys-
tem.
Replace faulty components only
with original 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 function. Installing non-author-
ised components and making
non-approved modifications or
conversions can compromise
safety and may invalidate our
warranty.
For replacements, use only orig-
inal spare parts supplied or
approved by Viessmann.
Safety instructions
Safety instructions (cont.)
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4
Introduction
Scope of functions................................................................................................ 9
Setting levels........................................................................................................ 9
Programming unit................................................................................................. 10
Function description
Heat pump stage 2............................................................................................... 12
Heat pump cascade............................................................................................. 12
Externally switched functions............................................................................... 17
Power-OFF........................................................................................................... 19
Booster heaters.................................................................................................... 19
DHW heating........................................................................................................ 21
Heating water buffer cylinder/low loss header...................................................... 25
Heating circuits/cooling circuit.............................................................................. 26
Cooling functions.................................................................................................. 30
Swimming pool heating........................................................................................ 31
Troubleshooting
Messages............................................................................................................. 33
Diagnosis (service scans).................................................................................... 68
Testing outputs (actuator test).............................................................................. 93
Function check..................................................................................................... 94
LON subscriber check.......................................................................................... 95
No display in programming unit............................................................................ 96
Control unit settings
Coding level 1 in service menu............................................................................ 97
Parameter group system definition
Parameter group system definition....................................................................... 98
7000 System scheme !..................................................................................... 98
7003 Temperature differential for calculating the heating limit !....................... 100
7004 Temperature differential for calculating the cooling limit !....................... 100
7008 Swimming pool !...................................................................................... 101
7010 External extension !................................................................................. 101
700A Cascade control !.................................................................................... 102
5735 Number of lag heat pumps in cascade !.................................................. 102
700B Output lag heat pump !............................................................................ 103
700C Use of heat pump in cascade !............................................................... 103
7011 System components for external changeover !....................................... 104
7012 Operating status for external changeover !............................................. 106
7013 Duration of external changeover !........................................................... 107
7014 Effect of external demand on heat pump/heating circuits !...................... 108
Index
Index
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7015 Effect of ext. blocking on heat pump/heating circuits !............................ 108
7017 Vitocom 100 !........................................................................................... 109
701A Effect of external blocking on pumps/compressor !................................ 109
701B Common flow temperature sensor system !............................................ 111
Parameter group compressor
Parameter group compressor............................................................................... 112
5000 Enable compressor !................................................................................ 112
5010 Evaporator temperature for defrost end !............................................ 112
5030 Output compressor stage 1 !................................................................... 112
Parameter group compressor 2
Parameter group compressor 2............................................................................ 113
5100 Enable compressor !................................................................................ 113
5130 Output compressor stage 2 !................................................................... 113
Parameter group external heat source
Parameter group external heat source................................................................. 114
7B00 Enable external heat source !................................................................. 114
7B01 Priority ext. heat source/instant. heating water heater !.......................... 114
7B02 Dual mode temperature external heat source !....................................... 114
7B0D Enable external heat source for DHW heating !..................................... 115
Parameter group DHW
Parameter group DHW......................................................................................... 116
6000 Set DHW temperature................................................................................. 116
6005 Min. DHW temperature !.......................................................................... 116
6006 Max. DHW temperature !......................................................................... 116
6007 Hysteresis DHW temperature heat pump !.............................................. 117
6008 Hysteresis DHW temperature instant. heating water heater !................. 118
6009 Start optimisation for DHW heating............................................................. 118
600A Stop optimisation for DHW heating............................................................. 118
600C Set DHW temperature 2............................................................................. 119
600E Temperature sensor at bottom of DHW cylinder......................................... 119
6014 Enable booster heaters for DHW heating !.............................................. 120
6015 Enable electric heaters for DHW heating !.............................................. 120
6016 Priority DHW heating with combi cylinder !.............................................. 120
6017 Start attempts for DHW after high pressure shutdown !.......................... 121
6020 Operating mode cylinder primary pump !................................................ 121
Parameter group solar
Parameter group solar.......................................................................................... 123
Index
Index
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7A00 Type solar control unit !........................................................................... 123
7A01 Max. collector temperature !.................................................................... 123
7A02 Start hysteresis solar circuit pump !........................................................ 123
7A03 Stop hysteresis solar circuit pump !........................................................ 124
7A07 Flow rate solar circuit for calculating solar yield !.................................... 124
7A09 Display message incorrect circulation !................................................... 124
Parameter group electric booster heater
Parameter group electric heater........................................................................... 125
7900 Enable instantaneous heating water heater !.......................................... 125
7902 Enable instant. heating water heater for central heating !....................... 125
7907 Max. output instantaneous heating water heater !................................... 126
790A Output for instant. heating water heater at power-OFF !......................... 126
790B Dual mode temp. instant. heating water heater !.................................... 126
Parameter group internal hydraulics
Parameter group internal hydraulics.................................................................... 128
7300 Heat pump for drying a building !............................................................. 128
7303 Time program for screed drying !............................................................ 128
730C Flow temperature for external demand !................................................. 130
730D Enable three-way diverter valve heating/DHW !..................................... 131
7320 Operating mode primary pump !......................................................... 131
7340 Operating mode secondary pump !......................................................... 132
Parameter group buffer cylinder
Parameter group buffer cylinder........................................................................... 133
7200 Enable buffer cylinder/ low loss header !................................................. 133
7202 Temp. in operating status fixed value for buffer cyl !............................... 133
7203 Hysteresis temperature heating buffer cylinder !..................................... 133
7204 Max. temperature buffer cylinder !........................................................... 134
7208 Temp. limit op. status fixed value for buffer cylinder !............................. 135
Parameter group heating circuits/cooling circuit
Parameter group heating circuits/cooling circuit................................................... 136
2000 Standard room temperature........................................................................ 136
2001 Reduced room temperature........................................................................ 136
2003 Remote control !...................................................................................... 136
2006 Heating curve level...................................................................................... 137
2007 Heating curve slope..................................................................................... 137
200A Influence room temperature hook-up !.................................................... 138
200B Room temperature hook-up !.................................................................. 138
200E Max. flow temperature heating circuit !................................................... 139
Index
Index
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2022 Room temperature in party mode................................................................ 139
Parameter group cooling
Parameter group cooling...................................................................................... 140
7100 Cooling function !..................................................................................... 140
7101 Cooling circuit !........................................................................................ 140
7102 Set room temperature separate cooling circuit............................................ 141
7103 Min. flow temperature cooling !................................................................ 141
7104 Influence room temperature hook-up cooling circuit !.............................. 141
7110 Cooling curve level !................................................................................ 142
7111 Cooling curve slope !............................................................................... 142
71FE Enable active cooling mode........................................................................ 142
Parameter group time
Parameter group time........................................................................................... 143
7C00 to 7C06 Automatic changeover summertime - wintertime !.................... 143
Parameter group communication
Parameter group communication......................................................................... 144
5707 Heat pump number in cascade (LON) !................................................... 144
7710 Enable LON communication module !..................................................... 144
7777 LON subscriber number !........................................................................ 144
7779 LON fault manager !................................................................................ 145
7797 Outside temperature !.............................................................................. 145
7798 LON system number !.............................................................................. 146
779C Interval for data transfer via LON !.......................................................... 146
77FF Time via LON !........................................................................................ 146
Parameter group operation
Parameter group operation.................................................................................. 148
8800 Lock out controls !................................................................................... 148
PCBs and connection options
Overview of the PCBs.......................................................................................... 149
Information regarding the electrical connections.................................................. 150
Main and extension PCB...................................................................................... 150
Cross connect PCB.............................................................................................. 165
Luster terminals (only Vitocal 222-G/242-G)........................................................ 168
Luster terminals (only Vitocal 200-S)................................................................... 170
Controller and sensor PCB................................................................................... 172
AVI PCB (only Vitocal 200-S)............................................................................... 176
NC PCB................................................................................................................ 177
EEV PCB.............................................................................................................. 178
Index
Index
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Pressure sensors................................................................................................. 180
Certificates
Declaration of conformity...................................................................................... 181
Keyword index.................................................................................................... 182
Index
Index (cont.)
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These service instructions include infor-
mation regarding the heat pump control
unit Vitotronic 200 , type WO1A for
Viessmann heat pumps:
■ Function description
■ Control parameters for matching the
heat pump to the different require-
ments and operating conditions
■ Diagnosis options for heating system
and refrigerant circuit
■ Troubleshooting measures
■ Overview of electrical connections
For system examples see the
installation and service instruc-
tions for the heat pump in ques-
tion and "Heat pump system
examples".
The functions and control characteristics
of the heat pump control unit are
matched to the relevant heat pump by
means of the coding card. As a conse-
quence, the entire scope of functions as
described here is not available for every
heat pump type.
In addition, the selected system scheme
and the auxiliary equipment have a
major influence on the available func-
tions in the heat pump control unit.
Type or system-specific details are only
highlighted in those places where they
have a direct effect on the characteristics
of the heat pump or the heating system.
The following symbols are used to iden-
tify the different heat pump types:
Brine/water heat pumps
Air/water heat pumps
Air/water heat pumps, split version
Setting levels
To avoid incorrect operation of the heat
pump or other system components, the
control parameters and fault messages
are available at different setting levels.
System user
Operation takes place in the standard
menu and in the extended menu and is
suitable for individuals that have been
trained in the operation of the heating
system by a heating contractor.
Introduction
Scope of functions
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■ The general operating functions are
found in the standard menu. These
include the selection of the set room
temperature or the selection of the
operating program.
■ The extended menu offers further
functions, such as the setting of time
programs, for example. To call up the
extended menu press .
For functions at the "System
user" setting level, see the oper-
ating instructions.
Contractor
Additional functions and the parameters
of Coding level 1 are available under this
setting level. These are identified by the
symbol !.
Note
The "Contractor" setting level includes
the functions of the "System user" level.
Programming unit
DHW
Solar energy
Information
Select with
40°C
Heating/cooling
Flow temperature
i
(
Note
The programming unit can also be set into a wall mounting base (accessory) near
the heat pump.
One step back in the menu or can-
cel a setting that has been started.
Cursor keys for scrolling through
the menu or for setting values.
OK Confirm selection or save a setting
just made.
Call up help text in connection with
the selected menu point.
Introduction
Setting levels (cont.)
5692 861 GB