Viessmann VITOSOLIC 100 Quick guide

Installation and service
instructions
for contractors
VIESMANN
Vitosolic 100
Type SD1
Electronic temperature differential control unit
for Vitocell 100-U, type CVUA
For applicability, see the last page
VITOSOLIC 100
5774 010 GB 2/2010 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
■ 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
5774 010 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.)
5774 010 GB

4
Installation instructions
Preparing for installation
Installation information......................................................................................... 6
System example................................................................................................... 6
Installation sequence
Mounting the solar control unit (when replacing).................................................. 11
Overview of electrical connections....................................................................... 12
Solar circuit pump................................................................................................. 12
Pump/valve at output R2...................................................................................... 14
High limit safety cut-out........................................................................................ 15
Collector temperature sensor............................................................................... 16
Cylinder temperature sensor................................................................................ 17
Temperature sensor............................................................................................. 17
Power supply........................................................................................................ 19
Service instructions
Commissioning
Switching the power ON....................................................................................... 20
Navigation through the menu............................................................................... 20
Selecting the system scheme............................................................................... 22
Setting system parameters................................................................................... 22
Resetting system parameters............................................................................... 22
Carrying out a relay test....................................................................................... 22
Service scans
Calling up temperatures and operating conditions............................................... 24
Troubleshooting
Fault messages.................................................................................................... 25
Checking sensors................................................................................................. 25
Changing the fuse................................................................................................ 26
Function description
Parameter overview............................................................................................. 27
System scheme.................................................................................................... 30
Collector limit temperature................................................................................... 35
Collector cooling function..................................................................................... 36
Minimum collector temperature limit..................................................................... 36
Frost protection function....................................................................................... 37
Reverse cooling function...................................................................................... 37
Interval function.................................................................................................... 37
Index
Index
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5
Heat statement..................................................................................................... 38
Speed control....................................................................................................... 38
Parts list.............................................................................................................. 40
Specification....................................................................................................... 41
Appendix............................................................................................................. 42
Certificates
Declaration of conformity...................................................................................... 43
Keyword index.................................................................................................... 44
Index
Index (cont.)
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6
Danger
Subject to system configuration,
DHW temperatures above 60 °C
can occur. DHW at temperatures
above 60 ºC causes scalding.
To limit the temperature to 60 ºC,
install mixing equipment, e.g. a
thermostatically controlled mix-
ing valve (accessories). Install a
mixer tap as anti-scalding device
at the draw-off point.
System example
DHW heating with dual mode DHW cylinder
Main components
■ Viessmann solar collectors
■ DHW cylinder Vitocell 100-U, type
CVUA
■ Vitosolic 100, type SD1
■ Solar-Divicon (integrated into Vitocell
100-U, type CVUA)
■ Wall mounted or floorstanding oil/gas
boiler
Function description
DHW heating with solar energy
If the temperature differential between
collector temperature sensor S1 eQ and
cylinder temperature sensor S2 qQ is
greater than the start temperature differ-
ential DT E, solar circuit pump R1 eE
starts and DHW cylinder qP is heated.
Solar circuit pump R1 eE stops in
accordance with the following criteria:
■ The actual temperature falls below the
stop temperature differential DT A
■ The electronic temperature limit (up to
90 °C) set in control unit eZ is excee-
ded
■ The temperature selected at high limit
safety cut-out qW (if installed) is
reached
Additional function for DHW heating
The requirements for the auxiliary func-
tion are achieved through circulation
pump R2 qT.
Suppression of DHW cylinder reheat-
ing by the boiler
Coding address "67" in boiler control unit
2 specifies a third set DHW tempera-
ture (setting range 10 to 95 ºC). This
value must be below the first set DHW
temperature. DHW cylinder qP is only
heated by boiler 1 (solar circuit
pump R1 eE runs) if this set value cannot
be achieved by the solar thermal sys-
tem.
Preparing for installation
Installation information
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7
DHW heating without solar energy
The top section of DHW cylinder qP is
heated by boiler 1. The cylinder tem-
perature controller with cylinder temper-
ature sensor 3 of boiler control unit
2 regulates cylinder heating 4.
Required settings on the solar control unit
Pa-
rame-
ter
Delivered
condition
Description Setting
ANL 1 Without auxiliary function for DHW heating 1
With auxiliary function for DHW heating (see
page 33)
4
DT E 8 °C Start temperature differential for solar circuit pump
at R1
DT A 4 °C Stop temperature differential for solar circuit pump
at R1
S SL 60 °C Set cylinder temperature (see page 31)
For further functions, see chapter "Function description" from page 27.
Note
"DT E" can be set at least 0.5 K higher
than "DT A" and up to 0.5 K lower than
"DT S" (see page 29).
"DT A" can be set up to 0.5 K below
"DT E".
Information regarding speed control
of the solar circuit pump
Observe chapter "Speed control" (see
page 38).
Preparing for installation
System example (cont.)
5774 010 GB
Installation

8
Hydraulic installation scheme ID: 4605119_1001_01
P
eP
eW
eQ
eE
1
M
4
2
11
S2S1
eZ
R1R2
KM BUS
230 V/50 Hz
qQ
qE
3
qP
qT
qR
qW
2
%
sK
Preparing for installation
System example (cont.)
5774 010 GB

9
Equipment required
ID: 4605119_1001_01
Pos. Description
1Floorstanding or wall mounted oil/gas boiler
with
2Boiler and heating circuit control unit
3Cylinder temperature sensor
4Circulation pump for cylinder heating
(integral in wall mounted oil/gas boilers)
qP Vitocell 100-U, type CVUA
qQ Cylinder temperature sensor S2
qW High limit safety cut-out (accessories)
qE DHW circulation pump (on site)
(internal/external extension may be required for connecting a wall mounted
oil/gas boiler)
qR Thermostatic mixing valve (accessories)
qT Circulation pump R2 (transfer) (on site)
eP Solar collectors
eQ Collector temperature sensor S1
eW Solar-Divicon (integrated into Vitocell 100-U, type CVUA)
with
eE Solar circuit pump R1
eZ Vitosolic 100, type SD1 (integrated into Vitocell 100-U, type CVUA)
eU Junction box (on site)
eI ON/OFF switch (on site)
Preparing for installation
System example (cont.)
5774 010 GB
Installation

10
Electrical installation scheme
eQ
qQ
qW
eE
eZ
230 V/50 Hz
?
21
20
15
19
18
14
?
M
1~ R1
17
16
13
?
12
11
145
10
9
4
3
2
1
6
5
eU
SOL
KOL
HLSC
230 V/50 HzLow voltage
R2
M
1~ qT
KM BUS 2
eI
A
M
1~
ID: 4605119_1001_01
AIf the control unit is used in conjunc-
tion with a variable speed solar cir-
cuit pump with PWM control
Preparing for installation
System example (cont.)
5774 010 GB

11
155
150
3.
1.
4.
2x
2.
Before closing the solar control unit,
make all electrical connections and
apply strain relief to all cables/leads.
Installation sequence
Mounting the solar control unit (when replacing)
5774 010 GB
Installation

12
E
?
13 14 15 16 17 18 19 20 21
N R2
T 4 A
R1 N L
250 V
P = 2 VA
AC 250 V 0,8 A
AC 250 V 4(2) A
IP 20, l, T40 230 V
50 Hz
R1
R2
N
11 12
145
9 10
PWM
GND +
1 2
S1
3 4
S2
5 6
S3
A
B C D
AWiring chamber of the solar control
unit
BSensor inputs
CPWM signal for the solar circuit
pump
DKM BUS
EFuse, 4.0 A (slow)
R1 Semi-conductor relay (suitable for
speed control)
R2 Electromechanical relay
Solar circuit pump
Note
■ The "RPM" parameter is factory-set
according to the type of inbuilt pump.
This setting only needs to be changed
when replacing the control unit or pos-
sibly when replacing the pump.
■ In the delivered condition, the power
cable for the solar circuit pump (power
supply) and the PWM cable (if instal-
led) are connected.
!Please note
If the "RPM" parameter is set
incorrectly, this may damage the
appliance or cause faults.
Note the relevant value shown in
the following table.
Installation sequence
Overview of electrical connections
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Suitable pumps
Standard solar circuit pumps High efficiency
pumps without
PWM input
Pumps with PWM
input
Without individual
speed control
(with integral auxili-
ary capacitor)
With individual
speed control
Note
Use only solar cir-
cuit pumps, not
heating circuit
pumps.
"RPM" = 1 "RPM" = 0 "RPM" = 0 ■ WILO pumps:
"RPM" = 2
■ GRUNDFOS
pumps: "RPM" =
3
Connection
3-core cable with a cross-section of
0.75 mm2.
Rated current: 0.8 A
Note
Pumps with a power consumption in
excess of 190 W must be connected via
an additional relay (coupling relay). Dis-
able the speed control for this pump (see
chapter "Speed control").
Pump without PWM input
A
M
~
1
AWiring chamber of the solar control
unit
R1 Solar circuit pump
Installation sequence
Solar circuit pump (cont.)
5774 010 GB
Installation

14
Pump with PWM input
A
M
~
1
AWiring chamber of the solar
control unit
R1/PWM Solar circuit pump
Pump/valve at output R2
Installation
Pump and valve must be type-tested and
installed in accordance with the manu-
facturer's instructions.
Connection
3-core cable with a cross-section of
0.75 mm2.
Rated current: max. 4(2) A
Installation sequence
Solar circuit pump (cont.)
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A
M
~
1
B
AWiring chamber of the solar control
unit
BPump or valve
High limit safety cut-out
A high limit safety cut-out in the con-
sumer is required when less than
40 litres cylinder volume is available per
m2 absorber area. This installation pre-
vents temperatures in excess of 95 °C in
the consumer.
Note
For the Vitocell 100-U, type CVUA, note
that the max. collector area that can be
connected is 10 m2.
Connection
3-core cable with a cross-section of
1.5 mm2.
Installation sequence
Pump/valve at output R2 (cont.)
5774 010 GB
Installation

16
M
~
1
CB
D
A
AWiring chamber of the solar control
unit
BHigh limit safety cut-out
CSolar circuit pump
DJunction box (on site)
Temperature setting
Delivered condition: 120 °C
Change to 95 °C
High limit safety cut-out installa-
tion instructions
Collector temperature sensor
Installation
Collector installation instructions
Connection
Connect the sensor to S1 (terminals 1
and 2).
Extension of the connecting cable:
2-core cable with a cross-section of
1.5 mm2.
Installation sequence
High limit safety cut-out (cont.)
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Note
Never route this lead immediately next to
230/400 V cables over long distances.
Cylinder temperature sensor
Installation
With the threaded elbow.
DHW cylinder installation instruc-
tions
Temperature sensor
For additional functions see chapter
"Function description".
Installation sequence
Collector temperature sensor (cont.)
5774 010 GB
Installation

18
Installation
1.
4.
3.
2.
Note
Do not wrap insulating tape around the
sensor.
Seal in the sensor well.
Connection
Connect the sensor to S3 (terminals 5
and 6).
Extension of the connecting cable:
2-core cable with a cross-section of
1.5 mm2.
Note
Never route this cable immediately next
to 230/400 V cables.
Installation sequence
Temperature sensor (cont.)
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Regulations
Carry out the power supply connection
and all earthing measures (i.e. RCD cir-
cuit) in accordance with IEC 364, the
requirements of your local power supply
utility and VDE [or local regulations].
Protect the power cable to the control
unit with an appropriate fuse/MCB.
L
N
?
C
B
A
ASolar control unit wiring chamber
BON/OFF switch (on site)
CPower supply 230 V/50 Hz
Provide the power supply connection
(230 V~) via a two-pole mains isolator
(on site).
Disconnect the system by means of a
device that simultaneously separates all
non-earthed conductors with at least
3 mm contact separation.
Danger
Incorrect core allocation can
result in serious injury and dam-
age to the appliance.
Never interchange cores "L" and
"N":
L Terminal 21
N Terminal 20
Installation sequence
Power supply
5774 010 GB
Installation

20
1. Check whether all electrical connec-
tions have been correctly made.
2. Check that the high limit safety cut-
out (if required) is connected.
3. Switch ON the power; the solar con-
trol unit then implements an initiation
phase.
The solar control unit is now in auto-
matic mode.
4. After replacing the control unit: Check
which type of solar circuit pump is
connected and set parameter
"RPM" accordingly (see pages 12
and 22).
Navigation through the menu
Controls
KOL
°C
AB
AOK key; to confirm your menu
selection or setting
BSymbols line
Terminating an adjustment
already begun (the value reverts
to its previous setting)
/ Cursor keys
Navigating through the menu
/ Cursor keys
To set a value
Flashing "SET" means that val-
ues can be changed.
Commissioning
Switching the power ON
5774 010 GB