Viessmann VITOSOLIC 200 Quick guide

Installation and service
instructions
for contractors
VIESMANN
Electronic temperature differential control unit
Vitosolic 200
Type SD4
For applicability, see the last page
VITOSOLIC 200
5414 620 GB 6/2009 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
■ 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
Working on the system
■ Isolate the system from the power sup-
ply and check that it is no longer 'live',
e.g. by removing a separate fuse or by
means of a main isolator.
■ Safeguard the system against unau-
thorised reconnection.
!Please note
Electronic modules can be dam-
aged by electrostatic dis-
charges.
Touch earthed objects, such as
heating or water pipes, to dis-
charge static loads.
Repair work
!Please note
Repairing components that fulfil a
safety function can compromise
the safe operation of your heating
system.
Replace faulty components only
with original Viessmann spare
parts.
Safety instructions
Safety instructions
5414 620 GB

3
Ancillary components, spare and
wearing parts
!Please note
Spare and wearing parts that
have not been tested together
with the heating system can com-
promise its function. Installing
non-authorised components and
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.)
5414 620 GB

4
Installation instructions
System examples
General information.............................................................................................. 7
Overview of system examples.............................................................................. 8
System example 1................................................................................................ 9
System example 2................................................................................................ 14
System example 3................................................................................................ 21
System example 4................................................................................................ 26
System example 5................................................................................................ 35
System example 6................................................................................................ 41
System example 7................................................................................................ 48
System example 8................................................................................................ 54
System example 9................................................................................................ 59
Installation sequence
Fitting the solar control unit.................................................................................. 67
Overview of electrical connections....................................................................... 68
Pumps.................................................................................................................. 69
High limit safety cut-out........................................................................................ 71
Central fault message facility............................................................................... 73
Sensors................................................................................................................ 74
Solar cell............................................................................................................... 76
Power supply........................................................................................................ 77
Service instructions
Commissioning
Switching the power ON....................................................................................... 79
Navigation through the menu............................................................................... 79
Entering the operator code................................................................................... 80
Language selection.............................................................................................. 81
Setting the time and date..................................................................................... 82
Adjusting the display............................................................................................ 82
Setting parameters............................................................................................... 82
Carrying out a relay test (testing actuators)......................................................... 84
Service scans
Scanning temperatures and operating conditions................................................ 85
Scanning the statement........................................................................................ 85
Scanning the heat yield and temperatures........................................................... 86
Scanning messages............................................................................................. 87
Index
Index
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Troubleshooting
Fault messages.................................................................................................... 88
Checking sensors................................................................................................. 92
Checking relays (actuators).................................................................................. 92
Changing the fuse................................................................................................ 93
Function description
Systems................................................................................................................ 94
Function blocks.................................................................................................... 112
Cylinder temperature control................................................................................ 116
Cylinder temperature limit.................................................................................... 117
Cylinder priority control......................................................................................... 117
Collector emergency stop..................................................................................... 118
Bypass.................................................................................................................. 118
External heat exchanger...................................................................................... 122
Cooling function.................................................................................................... 126
Interval function.................................................................................................... 127
Collector cooling function..................................................................................... 128
Reverse cooling function...................................................................................... 129
Frost protection function....................................................................................... 129
Target temperature............................................................................................... 130
Parallel relay......................................................................................................... 130
Booster suppression............................................................................................. 131
Cylinder 2 (to 4) ON............................................................................................. 134
Utilisation of excess heat...................................................................................... 134
Minimum collector temperature limit..................................................................... 135
Cyclical heating.................................................................................................... 135
Additional function for DHW heating.................................................................... 136
Cylinder heating................................................................................................... 138
Speed control....................................................................................................... 139
Central fault message — signalling relay............................................................. 141
Heat statement..................................................................................................... 141
SD module............................................................................................................ 145
Relay kick............................................................................................................. 147
Parts list.............................................................................................................. 148
Specification....................................................................................................... 149
Appendix
Menu structure overview...................................................................................... 150
Overview of system parameters........................................................................... 151
PCBs.................................................................................................................... 166
Index
Index
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Certificates
Declaration of conformity...................................................................................... 168
Keyword index.................................................................................................... 169
Index
Index (cont.)
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7
Anti-scalding protection
Danger
Subject to system configuration,
DHW temperatures above 60 °C
can occur. DHW with tempera-
tures in excess of 60 °C can result
in scalding.
To limit the temperature to 60 °C,
install mixing equipment, e.g. a
thermostatically controlled mix-
ing valve (accessory). Install a
mixer tap as anti-scalding device
at the draw-off point.
Equipotential bonding and lightning protection of the solar ther-
mal system
Install an electrical conductor on the
pipework system of the solar circuit in the
lower part of the building in compliance
with VDE or local regulations.
The connection of the collector system to
a new or existing lightning protection
system or the provision of local earthing
must only be carried out by authorised
trained personnel, who must take into
account the conditions applicable on
site.
Additional function for DHW heating
DVGW W 551 specifies that the total
water content is maintained at 60 ºC and
the pre-heat stages must be heated once
every day to 60 ºC.
■ Systems with a cylinder capacity, incl.
preheat stage, in excess of 400 litres
■ Systems with a line content in excess
of 3 l from the DHW cylinder to the
draw-off point
We recommend heating up in late after-
noon. This ensures that the lower cylin-
der area or the pre-heating stage is cold
again following the expected drawings
(evenings and the following morning)
and can subsequently be heated up
again by solar energy.
Note
For detached houses and two-family
homes, this heat up is recommended,
but not compulsory.
System examples
General information
5414 620 GB
Installation

8
System example 1, see page 9.
M
System example 4, see page 26.
M
System example 2, see page 14.
M
M
System example 5, see page 35.
M
M
System example 3, see page 21.
M
System example 6, see page 41.
M
M
System examples
Overview of system examples
5414 620 GB

9
System example 7, see page 48.
M
M
System example 9, see page 59.
M
M
System example 8, see page 54.
M
System example 1
DHW heating with dual-mode DHW cylinder
Main components
■ Viessmann solar collectors
■ DHW cylinders Vitocell 100-B or
Vitocell 300-B
■ Vitosolic 200
■ Solar-Divicon
■ Wall mounted oil/gas boiler or oil/gas
boiler
Function description
DHW heating with solar energy
Solar circuit pump R1 eE starts and
DHW cylinder qP is heated up if the tem-
perature differential between collector
temperature sensor S1 eQ and cylinder
temperature sensor S2 qQ exceeds the
start temperature differential ΔT.
Solar circuit pump R1 eE is stopped in
accordance with the following criteria:
System examples
Overview of system examples (cont.)
5414 620 GB
Installation

10
■ Actual temperature dropping below
the stop temperature differential ΔToff
■ Exceeding the electronic temperature
limit of control unit eZ (max. 90 °C)
■ Reaching the temperature selected at
high limit safety cut-out qW (if installed)
Additional function for DHW heating
The requirements for the additional func-
tion are achieved through circulation
pump R5 qT.
Suppression of DHW cylinder reheat-
ing by the boiler
Coding address "67" in boiler control unit
2 defaults a third set DHW temperature
(setting range 10 to 95 °C). This value
must be below the first set DHW temper-
ature. DHW cylinder qP will only be
heated by boiler 1 (solar circuit
pump R1 eE runs) if this set value cannot
be achieved by the solar thermal sys-
tem.
DHW heating without solar energy
The upper section of DHW cylinder qP is
heated by boiler 1. The cylinder ther-
mostat with cylinder temperature sen-
sor 3 of boiler control unit 2 regulates
circulation pump for cylinder heating
4.
System examples
System example 1 (cont.)
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11
Hydraulic installation diagram
P
M
1
2
4
1
2
eZ
eP
eW
eQ
qE
qQ
qP
eE
qT
qR
qW
3
System examples
System example 1 (cont.)
5414 620 GB
Installation

12
Equipment required
Pos. Description
1Wall mounted oil/gas boiler or oil/gas boiler
with
2Boiler and heating circuit control unit
3Cylinder temperature sensor
4Circulation pump for cylinder heating
(integrated for wall mounted oil/gas boiler)
qP Dual-mode DHW cylinder
qQ Cylinder temperature sensor S2 (SOL)
qW High limit safety cut-out STB
qE DHW circulation pump
(internal/external extension may be required for connecting a wall mounted
oil/gas boiler)
qR Automatic thermostatic mixing valve
qT Circulation pump R5 (anti-stratification)
eP Solar collectors
eQ Collector temperature sensor S1 (KOL)
eW Solar-Divicon
eE Solar circuit pump R1
eZ Vitosolic 200
eU Junction box
eI ON/OFF switch (on site)
Accessories
uQ Solar cell
uW Heat meter extension kit (flow meter)
uE Large display
uR Datalogger
For boiler and heating circuit accessories, see boiler scheme.
System examples
System example 1 (cont.)
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13
Electrical installation diagram
qT
uQ
2
eE
STB
KOL
SOL
eQ
2
2
3
R1
S1
S2
eU
.
.
.
S12
CS10
Imp 1
Imp 2
V BUS
145
uW
2
uE/uR
2
2
R2
R3
R4
R5
R7
R6
qW
qQ
KM BUS
N,L,PE 230 V / 50 Hz
M
3
230 V / 50 Hz
Low voltage
eZ
3
3
3
M
eI
System examples
System example 1 (cont.)
5414 620 GB
Installation

14
Required settings on the solar control unit
Main menu Delivered
condition
Setting
Operator code 0000 0200
Solar options
■ System (see page 95) 1 1
Set solar values
■ Tcylset (set cylinder temperature) 60 °C
■ ΔTon (start temperature differential for solar circuit
pump R1 eE)
8.0 K
■ ΔToff (stop temperature differential for solar circuit
pump R1 eE)
4.0 K
System options
■ Add. fct.
(Additional function for DHW heating)
No Yes
(if a DHW cir-
culation pump
is connected)
For pump speed, see page 139.
System example 2
DHW heating with dual-mode DHW cylinder and central heating
backup with heating water buffer cylinder
Main components
■ Viessmann solar collectors
■ DHW cylinders Vitocell 100-B or
Vitocell 300-B
■ Heating water buffer cylinder
Vitocell 140-E or Vitocell 160-E
■ Vitosolic 200
■ Solar-Divicon
■ Solar pump line
■ Wall mounted oil/gas boiler or oil/gas
boiler
Function description
DHW heating with solar energy
Solar circuit pump R1 eE starts and
DHW cylinder qP is heated up if the tem-
perature differential between collector
temperature sensor S1 eQ and cylinder
temperature sensor S2 qQ exceeds the
start temperature differential ΔT.
Solar circuit pump R1 eE is stopped in
accordance with the following criteria:
System examples
System example 1 (cont.)
5414 620 GB

15
■ Actual temperature dropping below
the stop temperature differential ΔToff
■ Exceeding the electronic temperature
limit of control unit eZ (max. 90 °C)
■ Reaching the temperature selected at
high limit safety cut-out qW (if installed)
Additional function for DHW heating
The requirements for the additional func-
tion are achieved through circulation
pump R5 qT.
Suppression of DHW cylinder reheat-
ing by the boiler
Coding address "67" in boiler control
unit 2 defaults a third set DHW tem-
perature (setting range 10 to 95 °C). This
value must be below the first set DHW
temperature. DHW cylinder qP will only
be heated by boiler 1 (solar circuit
pump R1 eE runs) if this set value cannot
be achieved by the solar thermal sys-
tem.
DHW heating without solar energy
The upper section of DHW cylinder qP is
heated by boiler 1. The cylinder ther-
mostat with cylinder temperature sen-
sor 3 of boiler control unit 2 regulates
circulation pump for cylinder heat-
ing 4.
Central heating with solar energy
Circulation pump R4 eT is started to heat
heating water buffer cylinder rP if the
DHW cylinder qP cannot be heated and
the temperature differential between col-
lector temperature sensor S1 eQ and
buffer cylinder temperature sensor S4
rQ is greater than start temperature dif-
ferential ΔT2on. The pump will stop if the
actual temperature falls below the stop
temperature differential ΔT2off or it rea-
ches the set buffer cylinder temperature
Tcyl2set.
The temperature inside heating water
buffer cylinder rP will be limited by the
electronic temperature limiter or high
limit safety cut-out rR (if required).
Circulation pump R4 eT is stopped
roughly every 15 min for approx. 2 min,
(times adjustable), to check whether the
temperature at collector temperature
sensor S1 eQ is high enough to change
over to DHW cylinder heating qP.
Three-way diverter valve R6 rZ is
switched to position "AB-A" and the heat-
ing return water is routed to boiler 1 via
heating water buffer cylinder rP, if the
temperature differential between buffer
cylinder temperature sensor S5 rE and
heating circuit return temperature sen-
sor S6 rT exceeds start temperature dif-
ferential ΔT6on. If the temperature of the
preheated return water is too low, boiler
1 reheats the water to the required flow
temperature. Three-way diverter valve
R6 rZ is switched to position "AB-B" if
the actual temperature falls below the
stop temperature differential ΔT6off.
System examples
System example 2 (cont.)
5414 620 GB
Installation

16
Central heating without solar energy
Three-way diverter valve R6 rZ remains
at zero volt (position "AB-B") if the tem-
perature differential between buffer cyl-
inder temperature sensor S5 rE and
heating circuit return temperature sensor
S6 rT is less than temperature differen-
tial ΔT6off. There will be no flow through
heating water buffer cylinder rP.
Boiler 1 supplies the heating circuit
with heat according to the heating curve
set at boiler control unit 2.
A low loss header 6 with flow temper-
ature sensor 5 is required in conjunc-
tion with a wall mounted oil/gas
boiler.
System examples
System example 2 (cont.)
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17
Hydraulic installation diagram
P
HV2
HV3/HR1
HR3 HR4
HV1
HR2
M
M
BA
AB
eZ
eP
eW
eQ
rP
3
qP
eE
qT
qR
qW
1
1
2
eT
eR
qE
6
rQ rE rR
5
2
rZ
rT
4
qQ
System examples
System example 2 (cont.)
5414 620 GB
Installation

18
Equipment required
Pos. Description
1Wall mounted oil/gas boiler or oil/gas boiler
with
2Boiler and heating circuit control unit
3Cylinder temperature sensor
4Circulation pump for cylinder heating
(internal/external extension may be required for connecting a wall mounted
oil/gas boiler)
DHW heating with solar energy
qP Dual-mode DHW cylinder
qQ Cylinder temperature sensor S2 (SOL)
qW High limit safety cut-out STB
qE DHW circulation pump
qR Automatic thermostatic mixing valve
qT Circulation pump R5 (anti-stratification)
eP Solar collectors
eQ Collector temperature sensor S1 (KOL)
eW Solar-Divicon
eE Solar circuit pump R1
eZ Vitosolic 200
eU Junction box
eI ON/OFF switch (on site)
Central heating with solar energy
rP Heating water buffer cylinder
eR Solar pump line
eT Solar circuit pump for heating buffer cylinder R4
rQ Temperature sensor S4 (heating water buffer cylinder), heating up
rE Temperature sensor S5 (heating water buffer cylinder), discharge
rR High limit safety cut-out STB
rT Return temperature sensor S6 (heating circuit)
rZ Three-way diverter valve R6
Accessories
uQ Solar cell
uW Heat meter extension kit (flow meter)
uE Large display
uR Datalogger
For boiler and heating circuit accessories, see boiler scheme.
System examples
System example 2 (cont.)
5414 620 GB

19
Electrical installation diagram
2rQ
STB rR
3
rZ
M
3
uW
2
qT
uQ
2
eE
STB
KOL
SOL
eQ
2
2
3
R1
S1
S2
eU
.
.
.
S12
CS10
Imp 1
Imp 2
V BUS
145
uW
2
uE/uR
2
2
R2
R3
R4
R5
R7
R6
qW
qQ
KM BUS
N,L,PE 230 V / 50 Hz
S3
S4
2
S5 rE
2
S6 rT
M
3
230 V / 50 Hz
Low voltage
eZ
M
MeT
3
3
3
3
eU
eI
System examples
System example 2 (cont.)
5414 620 GB
Installation

20
Required settings on the solar control unit
Main menu Delivered
condition
Setting
Operator code 0000 0200
Solar options
■ System (see page 99) 1 3
■ Hyd. Type (see page 99) 1 2
Set solar values
■ Tcylset (set cylinder temperature) 60 °C
■ Tcyl2set (set buffer cylinder temperature) 60 °C
■ ΔTon (start temperature differential for solar cir-
cuit pump R1 eE)
8.0 K
■ ΔToff (stop temperature differential for solar cir-
cuit pump R1 eE)
4.0 K
■ ΔT2on (start temperature differential for solar cir-
cuit pump for buffer cylinder heating R4 eT)
8.0 K
■ ΔT2off (stop temperature differential for solar cir-
cuit pump for buffer cylinder heating R4 eT)
4.0 K
■ Priority Cyl1 1
■ Priority Cyl2 2
Solar contractor
■ t-stop (duration of the pump runtime interruption) 2 minutes
■ t-circ. (break intervals) 15 minutes
■ ΔT Col
During the t-stop time the collector temperature
must rise by the value of ΔT Col to change over
to heating the consumer with priority 1.
2 K
System options
■ Add. fct.
(Additional function for DHW heating)
No Yes
(if a DHW circu-
lation pump is
connected)
■ ΔT Fct6 (ΔT function for switching the three-way
diverter valve R6 rZ, function block 2, see
page 112)
No Yes
Set system values
■ ΔT6on (start temperature differential for R6) 5.0 K
■ ΔT6off (stop temperature differential for R6) 3.0 K
For pump speed, see page 139.
System examples
System example 2 (cont.)
5414 620 GB