Wolf SM2 Bedienungsanleitung
Part no. 30 62 438 Subject to modications 03/09 GB
Installation and
operating instructions
SM2 solar module
"Solar boiler stop"
NEW
WolfGmbH· Postfach 1380· 84048 Mainburg· Tel.08751/74-0 · Fax08751/741600 · Internet:www.wolf-heiztechnik.de
3062438_03092
Index
Safety instructions ......................................................................3
Standards / Regulations .............................................................4
Terminology ................................................................................5
Abbreviations / Equipment description .......................................6
Installation .................................................................................7
DIP switch settings .....................................................................8
Operating modes........................................................................9
System overview ......................................................................10
System description ..............................................................11-13
Electrical connection........................................................... 14-27
Parameter list ...........................................................................28
Parameter description
SOL01 / P01 Start differential solar cylinder 1.........................29
SOL02 / P02 Stop differential solar cylinder 1 .......................29
SOL03 / P03 Collector protection function .............................29
SOL04 / P04 Critical collector temperature............................29
SOL05 / P05 Maximum collector temperature .......................30
SOL06 / P06 Maximum cylinder temperature 1 .....................30
SOL07 / P07 Assigning solar cylinders 1 / 2...........................30
SOL08 / P08 Capturing the heat amount...............................31
SOL09 / P09 Flow rate...........................................................32
SOL10 / P10 Medium selection ...............................................32
SOL11 / P11 BUS feed .............................................................32
SOL12 / P12 System conguration..........................................33
SOL13 / P13 Pump speed control............................................34
SOL14 / P14 Start differential solar cylinder 2 .........................34
SOL14 / P14 Stop differential solar cylinder 2 .........................34
SOL16 / P16
Maximum cylinder temperature, solar cylinder 2
...35
SOL17 / P17 Assigning solar cylinder 2...................................35
SOL18 / P18
Burner blocking in case of return temperature raising
..35
SOL14 / P14 Start differential, return temperature raising.......35
SOL20 / P20 Stop differential, return temperature raising .....35
SOL21 / P21 Priority cylinder...................................................35
SOL22 / P22 Start differential, parallel cylinder operation......36
SOL23 / P23 Differential temperature, bypass operation .......36
SOL24 / P24 Function, output A4...........................................36
SOL25 / P25 Start temperature, thermostat function .............37
SOL26 / P26 Stop differential, thermostat function ................37
SOL27 / P27 Tube collector function ......................................37
SOL28 / P28 Frost protection function ...................................37
SOL50 / P50 Relay test..........................................................38
3062438_0309 3
Safety instructions
The following symbols are used in conjunction with these important
instructions concerning personal safety, as well as operational
reliability.
"Safety instructions" are instructions with which you must comply
exactly, to prevent risks and injuries to individuals and material
losses.
Danger through 'live' electrical components.
Switch OFF the ON/OFF switch before removing the casing.
Never touch electrical components or contacts when the ON/OFF
switch is in the ON position. This results in a risk of electrocution
that may lead to injury or death.
The main supply terminals are 'live' even when the ON/OFF switch
is in the OFF position.
"Note" indicates technical instructions that you must observe to
prevent material losses and boiler malfunctions.
Note
Safety instructions
Auxiliary functions
Blocking cylinder reheating "solar boiler stop" ...................38
Blocking pasteurisation ................................................ 38-39
Anti-seizing pump protection..............................................39
Loading the standard values (reset)...................................39
Maximum cylinder and collector temperature over 24 h ....39
Hours run ...........................................................................39
Resetting values.................................................................39
Fault codes...............................................................................40
Sensor resistances...................................................................41
Specication .............................................................................42
Keyword index.................................................................... 43-44
3062438_03094
Standards / Regulations
- According to DIN EN 50110-1, only qualied electricians may
carry out the installation and commissioning of the heating control
unit and connected accessories.
- Observe all regulations stipulated by your local power supply
utility and all VDE or local regulations.
- DIN VDE 0100 regulations regarding the installation of high
voltage systems up to 1 000 V.
- DIN VDE 0105-100 operation of electrical systems.
Installation /
Commissioning
Warnings - Never remove, bypass or disable safety and monitoring
equipment.
- Only operate the system in perfect technical condition.
Immediately remove / remedy any faults and damage that may
impact on safety.
- Always ensure that cold water is mixed in with hot water, when
the DHW temperature is set above 60 °C (risk of scalding).
Maintenance / Repair - Regularly check the perfect function of all electrical
equipment.
- Only qualied personnel may remove faults or repair damage.
- Only replace faulty components or equipment with original Wolf
spare parts.
- Always maintain specied electrical protection values (see
specication).
Any damage or loss resulting from technical modications to Wolf
control units is excluded from our warranty.
Note
The appliance and control accessories comply with the following
regulations:
EC Directives
- 2006/95/EC Low Voltage Directive
- 2004/108/EC EMC Directive
EN Standards
- EN 60730-1
- EN 55014-2
- EN 60529
Standards / Directives
3062438_0309 5
Collector temperature
The collector temperature is the medium temperature that is
generated by insolation at the collector.
The collector temperature is measured at the ow outlet of the
collector or collector array.
DHW cylinder temperature
The cylinder temperature is the temperature that is measured in the
lower area of the cylinder at the level of the indirect solar coil.
Flow rate
The ow rate is the volume of medium that is transported by the
solar circuit pump through the solar circuit. The ow rate in is
quoted in l/min.
Yield
This is the volume of heat generated by the solar thermal system.
It is calculated from the ow rate and the temperature differential
between the collector and the return temperature. This is a value
that is added up over a certain period (day) or given as overall
total. The yield is quoted in Wh, kWh or MWh.
Output
The heat output represents the volume of heat generated during
a certain period. This value represents a momentary value and
is quoted in kW.
Solar cylinder
The solar cylinder is the cylinder that is heated up by the solar
thermal system.
Solar thermal
Heating up of the cylinder via the solar circuit pump.
Solar circuit pump
The pump that circulates the medium in the solar circuit.
Terminology
Terminology
3062438_03096
Abbreviations / Equipment description
The solar module (SM2) is designed to regulate solar thermal
systems with up to two collector arrays and two solar cylinders.
The system is ne-tuned by selecting from eleven precongured
systems.
Heat metering may be possible, subject to the selected system.
For this, the heat amount can either be captured through
determining the yield by recording the actual ow rate with a heat
meter set (accessory) or by calculating the yield with a specied
ow rate (requires a return sensor).
Parameters can be modied, and values as well as fault codes can
be displayed with the programming modules BM or BM-Solar.
The SM2 has an eBUS interface and can therefore be integrated
into the Wolf control system.
Appliance description
Abbreviations SFK1 - Solar sensor, collector, collector array 1
SFK2 - Solar sensor, collector, collector array 2
SFS1 - Solar sensor solar cylinder 1
SFS2 - Solar sensor solar cylinder 2
RLF - Return sensor
BPF - Bypass sensor
PF - Buffer sensor
DFG - Flow rate transducer
SKP1 - Solar circuit pump 1
SKP2 - Solar circuit pump 2
CIR. - DHW circulation pump
USP - Transfer/de-stratication pump
3WUV1 - Three-way diverter valve 1
3WUV2 - Three-way diverter valve 2
el.V1 - Motorised valve 1
el.V2 - Motorised valve 2
Solar circuit pump 1
Output A1*
Output A2*
Output A3*
eBUS
Fault
* Assignment of outputs subject to the selected system version
3062438_0309 7
Installation
Solar module installation - Remove the solar module from its packaging.
- Mount the solar module directly on the wall.
- Wire up the SM2 solar module in accordance with the wiring
diagram.
Note: Never route on-site cables/leads for temperature
sensor, ow meter and eBUS together with mains power
cables.
Fixing holes
A programming module BM or BM-Solar can be clicked into the
solar module. As an alternative, the programming module can
also be used as a remote control unit in conjunction with a wall
mounting base.
No separate programming module is required if the solar module
is integrated into a Wolf control system that already contains a
programming module BM.
For further details, see the operating instructions of the
programming module BM or BM-Solar.
3062438_03098
DIP switch settings/
Operating modes
DIP switch settings
Switching the solar module
ON / OFF
A 4-pole DIP switch is located inside the solar module casing. This
becomes accessible after removing the cover or the programming
module.
DIP switch 1 enables the module to be switched ON and OFF. The
anti-seizing pump protection continues to be active even when the
module is switched OFF.
DIP switches 2 and 3 are not relevant here.
DIP switch 4 must be set to ON.
a) SM2 as part of a Wolf control system
The SM2 solar module can be integrated into a Wolf control
system. In that case, the solar module will be controlled from
the programming module BM with address 0. An optional
programming module BM-Solar can also be linked to the SM2.
In that case, the system can be controlled from the BM with
address 0 and from the BM-Solar.
Operating modes The SM2 solar module can be operated in different modes.
Factory setting:
If the solar cylinder is assigned to another BM, the system can
also be controlled from that BM. In systems with two cylinders
that are assigned to two different BMs, the solar module can also
be controlled from those two BMs (see parameter description
SOL07 /P07 and SOL17 /P17).
Note:
Only one SM2 can be integrated into any one Wolf control
system.
BM-SolarSM2BM
option
Wolf
boiler
additional Wolf
eBUS users
3062438_0309 9
Operating modes
BM-Solar
BM-Solar
SM2 BM-Solar
b) SM2 (stand alone) with BM-Solar programming module
The module will be controlled by the BM-Solar programming
module.
The BM-Solar can be clicked into the SM2 solar module or
can be used as a remote control on a wall mounting base
(accessory).
c) SM2 (stand alone) without programming module
The solar module is operated without programming module.
Operation and selecting values is then not possible.
The status of outputs and faults can be identi ed by the LEDs
in the enclosure front.
3062438_030910
System overview
The SM2 solar module contains eleven different systems with up to
two solar cylinders and two collector arrays. Parameter 12 - system
conguration enables the selection of the most suitable system.
System
cong-
uration
System Number
of solar
cylinders
Number
of
collector
arrays
1Single circuit system 1 1
2Single circuit system with return temperature
raising for central heating backup
1 1
3Dual-circuit system with two solar cylinders in
parallel operation
2 1
4Dual-circuit system with two solar cylinders with
cylinder priority control
2 1
5Dual-circuit system with two collector arrays and
two solar circuit pumps
1 2
6Dual-circuit system with two collector arrays and
one solar circuit pump
1 2
7Dual-circuit system with two collector arrays, two
solar cylinders with cylinder priority control and
two solar circuit pumps
2 2
8Dual-circuit system with two collector arrays, two
solar cylinders with cylinder priority
control and one solar circuit pump
2 2
9Single circuit system with bypass circuit 1 1
10 Dual-circuit system with two solar cylinders with
cylinder priority control and bypass circuit
2 1
11 Dual-circuit system with two solar cylinders with
parallel cylinder operation with bypass circuit
2 1
System overview:
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