emz smart Stove Operating And Installation Instructions
OPERATING AND
INSTALLATION
DIFFERENTIAL TEMPERATURE CONTROLLER FOR ROOM/SPACE HEATING
SYSTEMS AND DOMESTIC HOT WATER SYSTEMS HANDLING SOLID FUEL
HEAT SOURCES, NAMELY WOOD LOG AND PELLET STOVES
INSTRUCTIONS
emz - THE SMILING COMPANY
These Assembly and Operating Instructions are an integral part of the product.
› Read Assembly and Operating Instructions carefully before using the product.
› Keep them in a safe place during the product‘s service life.
Original version in English language ©emz 2016 - Subject to modifications.
The contents and representations of these Assembly and Operating Instructions are the intellectual
property of emz-Hanauer GmbH & Co.KGaA.
Non-authorized disclosure, reproduction, divulgation or editing of this documentation, as well as
exploitation, utilization or publication, are prohibited.
The rights to the word and design marks ›emz - smart solutions‹ and ›smart Stove‹ are the exclusive
property of emz-Hanauer GmbH & Co.KGaA.
The rights to any cited brands, names or logos are the property of their appropriate developers / of
the licensees in question.
TABLE OF CONTENTS
Table of contents
Table of contents................................................................................................................................ 3
Important information ......................................................................................................................... 7
Safety information ......................................................................................................................... 7
Conditions of use ..........................................................................................................................7
Intended use .................................................................................................................................8
Description ......................................................................................................................................... 9
Scope of supplies.......................................................................................................................... 9
Mounting and connection.............................................................................................................. 9
Data interfaces............................................................................................................................ 10
Data logging................................................................................................................................ 11
Operation of the controller................................................................................................................ 12
Control elements......................................................................................................................... 12
Display ........................................................................................................................................13
Information screen ................................................................................................................. 13
Operation mode ..................................................................................................................... 13
Communication screen .......................................................................................................... 14
Hydraulic systems ............................................................................................................................ 16
Hydraulic symbols....................................................................................................................... 16
Hydraulic system 1: Wood log stove........................................................................................... 17
Connection of hydraulic system 1 .......................................................................................... 17
Hydraulic system 2: Wood log stove, tank with zone valve ........................................................ 18
Connection of hydraulic system 2 .......................................................................................... 18
Hydraulic system 3: Wood log stove, tank with charging zones,
external domestic hot-water tank ................................................................................................19
Connection of hydraulic system 3 .......................................................................................... 19
Hydraulic system 4: Pellet stove with combination tank ............................................................. 20
Connection of hydraulic system 4 .......................................................................................... 20
Hydraulic system 5: Pellet stove ................................................................................................. 21
Connection of hydraulic system 5 .......................................................................................... 21
Hydraulic system 6: Pellet stove with external additional heating............................................... 22
Connection of hydraulic system 6 .......................................................................................... 22
Hydraulic system 7: Pellet stove, tank with charging zones, external domestic hot-water tank . 23
Connection of hydraulic system 7 .......................................................................................... 23
Functions for stove control ............................................................................................................... 24
Fire detection ..............................................................................................................................24
Fire detection with pellet stove............................................................................................... 24
Dynamic pump delay (DPD.........................................................................................................24
Dynamic pump control ................................................................................................................24
Overtemperature protection ........................................................................................................ 25
smart Stove - 0142 - 42WMSUGAT2-C 3
TABLE OF CONTENTS
Antifreeze protection ...................................................................................................................26
Anti-legionella function ................................................................................................................26
Additional heating........................................................................................................................ 26
Request for heat.......................................................................................................................... 27
Request for heat with wood log stove .................................................................................... 27
Request for heat with pellet stove .......................................................................................... 27
Thermostat functions........................................................................................................................28
Temperature thermostat “Heating”.............................................................................................. 28
Temperature thermostat “Cooling” .............................................................................................. 28
Timer function .............................................................................................................................28
Timer thermostat .........................................................................................................................29
Temperature comparator ............................................................................................................29
Temperature thermostat “Window” ............................................................................................. 29
Automatic operation .........................................................................................................................30
Settings during operation .................................................................................................................31
Menu structure ............................................................................................................................31
Main menu ..................................................................................................................................32
Evaluation ..............................................................................................................................32
Settings ..................................................................................................................................34
Basic functions....................................................................................................................... 36
Monitoring ..............................................................................................................................38
Login ......................................................................................................................................38
About......................................................................................................................................39
System ...................................................................................................................................39
Mounting........................................................................................................................................... 40
Dimensions .................................................................................................................................40
Opening the terminal cover .........................................................................................................40
Wall-mounting .............................................................................................................................41
Designation of the components...................................................................................................43
Electrical connection ........................................................................................................................44
Terminals ....................................................................................................................................44
Cable preparing........................................................................................................................... 45
Connection of a zone valve to RO1/RO2 ....................................................................................46
Connection of a zone valve to REL............................................................................................. 46
Connection of a pump to REL .....................................................................................................46
Blocking connection of a pump to REL .......................................................................................47
Connection of a boiler to REL .....................................................................................................47
Connection of an external heat source to REL ........................................................................... 47
Blocking connection of an external heat source to REL.............................................................. 48
Blocking connection of a pump to RO2....................................................................................... 48
Connection for request for heat to RO1 ......................................................................................48
4 smart Stove - 0142 - 42WMSUGAT2-C
TABLE OF CONTENTS
High-efficiency pump .................................................................................................................. 48
Commissioning................................................................................................................................. 50
Basic settings.............................................................................................................................. 50
Load an existing configuration ....................................................................................................51
Choose system ...........................................................................................................................51
Checklist ..................................................................................................................................... 51
Settings in the professional mode .................................................................................................... 54
Login ...........................................................................................................................................54
Main menu .................................................................................................................................. 54
Evaluation .............................................................................................................................. 55
Settings.................................................................................................................................. 55
Basic functions....................................................................................................................... 55
Protective functions................................................................................................................ 63
Monitoring .............................................................................................................................. 64
Login ...................................................................................................................................... 65
Manual mode ......................................................................................................................... 65
Firmware update .................................................................................................................... 65
Summary of parameters in ›Basic functions‹ .............................................................................. 67
Malfunction....................................................................................................................................... 73
Sensor monitoring....................................................................................................................... 73
Service Wizard............................................................................................................................ 74
Example for protective function.............................................................................................. 74
Example for malfunction ........................................................................................................ 74
Replacement of fuse ........................................................................................................................ 78
Technical data.................................................................................................................................. 80
Differential temperature controller smart Stove .......................................................................... 80
Connection to power supply........................................................................................................ 80
Max. cross sections to be connected.......................................................................................... 80
Interfaces TS1 / TS2 / TS3 / TS4 / TS5 / TS6............................................................................. 80
Interface TS7 / TS8..................................................................................................................... 81
Triac outputs RO1 / RO2 ............................................................................................................ 81
Switching output REL: change-over contact ............................................................................... 81
Interface for analogue Vortex flow sensors................................................................................. 81
Disassembly/disposal....................................................................................................................... 82
Warranty and liability........................................................................................................................ 83
Commissioning report ...................................................................................................................... 84
Service request ................................................................................................................................ 85
CE declaration of conformity ............................................................................................................ 86
smart Stove - 0142 - 42WMSUGAT2-C 5
TABLE OF CONTENTS
Index ................................................................................................................................................ 87
6 smart Stove - 0142 - 42WMSUGAT2-C
IMPORTANT INFORMATION
Important information
Safety information
The Assembly and Operating Instructions indicate possible hazards:
DANGER indicates an almost certain danger of serious personal injury or death.
WARNING indicates a possible danger of serious personal injury.
CAUTION indicates a possible danger of slight personal injury.
NOTICE indicates a possible danger of damage to the equipment.
When handling the differential temperature controller smart Stove and the entire plant, please make
sure that the safety provisions in the Operating and Installation Instructions are complied with!
Conditions of use
These instructions describe installation, commissioning, operation, repair, and disassembly of the
differential temperature controller smart Stove for solid fuel heat sources, namely wood log and pel
let stoves.
For operation of the entire plant, the technical documentation of all the components used such as
stove, boiler, tank, pumps, mixers, and valves, etc. must be complied with.
-
DANGER
Assembly, connection, commissioning, repair, or disassembly
Lethal danger due to electrocution!
Whenever work is performed on the open terminal cover, all
poles of the power supply must be disconnected reliably and
protected against being switched on again!
The controller is handled by the operator of the entire thermal plant, i. e. as a rule by technical nonexperts.
NOTICE
Make sure not to use the controller until you have thoroughly read and understood these Assembly
and Operating Instructions and the safety provisions. Comply with all safety provisions and involve a
specialist in case of doubt.
The controller by no means replaces the safety components
required under plant engineering aspects!
smart Stove - 0142 - 42WMSUGAT2-C 7
IMPORTANT INFORMATION
NOTICE
Keep these Assembly and Operating Instructions and all reference documents so that they are
available if required.
When relocating or when selling the device, hand the documents over to your successor.
NOTICE
NOTICE
Intended use
The differential temperature controller smart Stove may be used exclusively for controlling heating
and water temperatures for use with hydrophilic wood log and pellet stoves in combination with one
or more buffer tanks.
It must be operated within the scope of all the specifications described.
Installation and set-up of the controller may only be performed by specialists.
The installer must have read and understood the operating manual. The installer explains all the relevant functions to the operator.
For operation, it is essential that the housing is closed and free of damage.
The installer installing the controller must inform the plant
operator about operation, functioning and the method of action
of the smart Stove!
The device in operation may only be made accessible to adults
disposing of appropriate knowledge and experience!
Make sure that only a dry or slightly moistened cloth is used for
cleaning and servicing of the housing, the control elements
and the display.
The surfaces must never get into contact with cleaning products or solvents - mat, brittle or slightly dissolved plastic parts
must be replaced immediately!
A device with damaged housing must not be operated!
8 smart Stove - 0142 - 42WMSUGAT2-C
DESCRIPTION
Description
The differential temperature controller smart Stove is an independent electronic controller for controlling heating and water temperatures for use with hydrophilic wood log and pellet stoves in combination with one or more buffer tanks.
The controller is equipped with a robust three-part plastic housing which can only be opened by
means of tools (screw driver PH2).
Operation is effected by means of only two control elements; indications appear against a backlit
colour display.
Scope of supplies
• Differential temperature controller smart Stove
• Operating Instructions
Mounting and connection
Before connection of the electrical system, the controller must be mounted firmly to a perpendicular,
robust surface (wall), see
For its own supply and the supply of the outputs, the controller must be connected to an electrical
energy supply system in accordance with the technical data, see
“Mounting” on page 40.
“Electrical connection” on page 44.
DANGER
Loose installation or connection
Lethal danger due to electrocution!
Whenever work is performed on the open terminal cover, all
poles of the power supply must be disconnected reliably and
protected against being switched on again!
Assembly, connection, commissioning, repair and disassembly of the controller are only admissible
in a specialist workshop.
NOTICE
Each temperature sensor has two connectors which are equivalent, i. e. interchangeable. Thus,
polarity reversal is not an issue.
The sensor lines can be extended up to a length of 100 m, to this effect, a cable cross section of
2
x 1.5 mm2 is recommended.
To ensure correct operation, temperature sensors type Pt 1000
must be used - the sensor design does not affect function.
smart Stove - 0142 - 42WMSUGAT2-C 9
DESCRIPTION
USB port
Micro SD
card
Data interfaces
The controller has the following data interfaces:
The cut-outs at the left of the housing base accommodate a
USB port as well as a slot for a storage medium (Micro SD
card).
These interfaces are used, for example, for reading of error
messages or log data or loading of software updates.
The USB port provides access to the Micro SD card.
Only SD cards approved by the manufacturer must be used.
The controller automatically detects the Micro SD card.
Prior to removing the Micro SD card ›Rem.SD card safely‹
must be selected in ›1.2 Settings‹, otherwise data loss may
occur.
Since the controller can only read formatted SD cards, the
Micro SD card must be formatted with a PC.
NOTICE
Micro SD cards recommended by the manufacturer:
Transcend® 2GB Product-No. TS2GUSDC
Transcend® 4GB HC
Transcend® 1GB
Verbatim 2GB
PNY 2GB
hp 2GB
SanDisk 2GB
10 smart Stove - 0142 - 42WMSUGAT2-C
DESCRIPTION
Data logging
When an optional Micro SD card is inserted in the device, data logging is always active on the controller.
Data is written to the LOGFILES directory.
The recording is performed in CSV format, so that the files can be easily imported into calculation or
presentation programs. A new file will be created for each day. The interval for data recording is
10
seconds.
The following values will be recorded and each row contains the following information:
• Time of the day (hours, minutes, seconds)
• Current temperature values of TS1 – TS6
• Output states (speed) of RO1, RO2, REL, TS7, TS8
• Lock-states (safety functions)
• Error codes
In the header of each file the date, the controller ID, as well as the column label of the recording data
is applied.
smart Stove - 0142 - 42WMSUGAT2-C 11
OPERATION OF THE CONTROLLER
Knob with OK button
Display
esc button
Operation of the controller
Control elements
The entire set-up and operation of the differential temperature controller smart Stove is effected via
only two control elements on the device front.
All settings and interrogations are effected via the knob and the esc button.
• To find a required menu item, turn the knob to scroll through the menu - the selectable option
appears on a coloured background on the display.
• To confirm the selected menu item, press the knob (“OK”).
An appropriate submenu is called up, or selection is activated.
Knob
• Press the esc button to make the menu return by one level from any subitem.
If no input is made within the preset time (30-255 s), the controller returns automatically to the initial
level.
12 smart Stove - 0142 - 42WMSUGAT2-C
OPERATION OF THE CONTROLLER
Active system with current temperatures
Date and time
System 1
17.03.2016 10:35
Indication of demand for domestic hot water and/or
space heating
esc button
Display
For indication of the operating mode and for communication in case of set-up, malfunction, modification and evaluation, the differential temperature controller smart Stove is equipped with a coloured
full graphics display which is permanently backlit.
The display is active as long as there is supply voltage on the controller.
After a preset time (30 - 255 s), backlighting is dimmed to approx. 10%.
Information screen
During normal operation, the information screen is displayed. It shows the active system, the system
state, the current temperatures, and it animates active hydraulic components.
(Example)
NOTICE
Operation mode
When you turn the knob while the information screen is shown, the ›Operation mode‹ screen will be
displayed.
The real-time clock has a power reserve of 8 hours minimum.
If the controller is disconnected from power supply for a longer
time, date and time must be set, see
smart Stove - 0142 - 42WMSUGAT2-C 13
“Settings” on page 34.
OPERATION OF THE CONTROLLER
Operation mode
17.03.2016 10:35
Operation mode
17.03.2016 10:35
The following operation modes are available:
• Comfort mode: Provides more stored energy to be used over time.
• Economy mode: Conserves energy and stores only a minimum.
The setting Eco or Comfort to select depends on your requirements, season of year and the heating
installation. When changing from Eco to Comfort, the controller will use temperature sensors in a dif
ferent positions. This determines when the controller will stop a request for heat.
-
• Common mode: Eco/Comfort mode is the
same for space heating and domestic hot
water.
You can change the operation mode by pressing the knob once.
When Separate mode is configured, turning the knob will move the selection between space heating
or domestic hot water.
The Common mode can be activated via ›Common Eco/Comf‹ during commissioning, see
“Checklist” on page 51.
To return to the information screen, press the esc button.
Communication screen
When you press the knob while the information screen is shown, the communication screen will be
displayed. It shows the menu of selectable functions and parameters.
“Menu structure” on page 31
• Separate mode: Eco/Comfort mode can be
individually selected for space heating and
domestic hot water.
14 smart Stove - 0142 - 42WMSUGAT2-C
(Example)
Number and name of menu
Professional mode
Manual mode
Message
Check box
Submenu arrow
Selection menu
Active menu item
Scroll arrow
Date and time
1.3.1 Thermostat R...
17.03.2016 10:35
Activation
Start
Timer,thermostat
Sensor TS3
Output RO2
USB connection symbol
To return to the information screen, press the esc button.
OPERATION OF THE CONTROLLER
smart Stove - 0142 - 42WMSUGAT2-C 15
HYDRAULIC SYSTEMS
Supply line
Return line
Pump
Zone valve or mixing valve
(controlled by other plant components)
Wood log stove
Pellet stove
Boiler, e. g. using fossil fuels/solid fuels/
heat pump etc.
Temperature sensor
Outdoor temperature
sensor
Hot-water/buffer tank
without internal
components
Hot-water/buffer tank
with:
• Additional domestic
hot water tank
• Additional heating,
e.g. electric
• Heat exchanger
• Solar coil
Zone valve controlled by smart Stove
Hydraulic systems
NOTICE
Hydraulic symbols
Define structure and design of the plant already when planning
the entire wood log or pellet stove thermal system and align
the design with the one of the hydraulic systems of the control
ler!
If you want to complete an existing system or replace the existing controller, please make sure that smart Stove is compatible
with the existing configuration!
The sensors are connected to TS1 to TS6, pumps and valves
are connected to RO1/RO2/REL/TS7/TS8 - The interfaces are
assigned to the functions in question on commissioning.
-
16 smart Stove - 0142 - 42WMSUGAT2-C
Hydraulic system 1: Wood log stove
TS6
TS5
RO2
TS1
TS2
TS3
TS4
RO1
REL
Supply line sensor
Outdoor temperature sensor
Power supply (230 V AC)
Charging pump (230 V AC)
Tank sensor, middle
Blocking of space heating pump
(230 V AC), see “Blocking connection of
a pump to RO2” on page 48
Additional heating,
see “Connection of
an external heat
source to REL” on
page 47
Tank sensor, bottom
Stove sensor
Tank sensor, top
Connection of hydraulic system 1
HYDRAULIC SYSTEMS
TS1: Stove sensor
TS2: Tank sensor, top
TS3: Tank sensor, middle
TS4: Tank sensor, bottom
TS5: Supply line sensor
(optional)
TS6: Outdoor temperature
sensor (optional)
RO1: Charging pump
RO2: Blocking of space heating
pump
REL: Additional heating
smart Stove - 0142 - 42WMSUGAT2-C 17
HYDRAULIC SYSTEMS
Tank sensor, top
Power supply (230 V AC)
Charging pump (230 V AC)
Tank sensor, middle
Zone valve (230 V AC), see “Connection
of a zone valve to RO1/RO2” on page 46
Additional heating,
see “Connection of
an external heat
source to REL” on
page 47
Tank sensor, bottom
Stove sensor
Hydraulic system 2: Wood log stove, tank with zone valve
TS1
RO1
Connection of hydraulic system 2
RO2
TS2
TS3
TS4
TS1: Stove sensor
TS2: Tank sensor, top
REL
TS3: Tank sensor, middle
TS4: Tank sensor, bottom
RO1: Charging pump
RO2: Zone valve
REL: Additional heating
18 smart Stove - 0142 - 42WMSUGAT2-C
Hydraulic system 3: Wood log stove, tank with charging zones,
TS6
TS6
REL
TS1
TS2
TS3
TS4
RO1
TS5
TS8
RO2
DHW tank sensor
Optional sensor
Power supply (230 V AC)
Charging pump (230 V AC)
Tank sensor, middle
Zone valve (230 V AC), see “Connection
of a zone valve to RO1/RO2” on page 46
Space heating
pump, see
“Blocking con-
nection of a
pump to REL” on
page 47
Domestic hot-water pump
Stove sensor
Tank sensor, top
Tank sensor, bottom
external domestic hot-water tank
TS1: Stove sensor
TS2: Tank sensor, top
TS3: Tank sensor, middle
TS4: Tank sensor, bottom
TS5: Domestic hot-water tank
sensor
TS6: Supply line sensor or outdoor temperature sensor
(optional)
RO1: Charging pump
RO2: Zone valve
REL: Space heating pump
TS8: Domestic hot-water pump
Connection of hydraulic system 3
HYDRAULIC SYSTEMS
smart Stove - 0142 - 42WMSUGAT2-C 19
HYDRAULIC SYSTEMS
Supply line sensor
Outdoor temperature sensor
Power supply (230 V AC)
Request for heat (230 V AC),
connection according to page 48
Tank sensor, middle
Blocking of space heating pump
(230 V AC), see “Blocking connection of a
pump to RO2” on page 48
Additional heating,
see “Connection of
an external heat
source to REL” on
page 47
Tank sensor, bottom
Stove sensor
Tank sensor, top
Hydraulic system 4: Pellet stove with combination tank
RO2
TS6
TS1
RO1
Connection of hydraulic system 4
TS5
TS2
TS3
TS4
TS1: Stove sensor
TS2: Tank sensor, top
TS3: Tank sensor, middle
TS4: Tank sensor, bottom
TS5: Supply line sensor
REL
(optional)
TS6: Outdoor temperature
sensor (optional)
RO1: Request for heat from
pellet
stove
RO2: Blocking of space heating
pump
REL: Additional heating
20 smart Stove - 0142 - 42WMSUGAT2-C
Hydraulic system 5: Pellet stove
L
Supply line sensor
Outdoor temperature sensor
Tank sensor, middle
Additional heating,
see “Connection of
an external heat
source to REL” on
page 47
Tank sensor, bottom
Stove sensor
Tank sensor, top
Power supply (230 V AC)
Request for heat (230 V AC), see
“Connection for request for heat to
RO1” on page 48
Blocking of space heating pump
(230 V AC), see “Blocking connection of a
pump to RO2” on page 48
RO2
TS6
TS1
RO1
Connection of hydraulic system 5
TS5
TS2
TS3
TS4
HYDRAULIC SYSTEMS
TS1: Stove sensor
TS2: Tank sensor, top
TS3: Tank sensor, middle
TS4: Tank sensor, bottom
TS5: Supply line sensor
(optional)
RE
TS6: Outdoor temperature sensor (optional)
RO1: Request for heat from
pellet
stove
RO2: Blocking of space heating
pump
REL: Additional heating
smart Stove - 0142 - 42WMSUGAT2-C 21
HYDRAULIC SYSTEMS
5
Sensor ext. add. heating
Tank sensor, top
Tank sensor, middle
Additional heating pump (230 V AC)
Ext. additional
heating, connection according to
page 47
Tank sensor, bottom
Stove sensor
Power supply (230 V AC)
Request for heat (230 V AC), see
“Connection for request for heat to
RO1” on page 48
Hydraulic system 6: Pellet stove with external additional heating
TS1
RO1
Connection of hydraulic system 6
TS2
RO2
TS3
TS4
REL
TS
TS1: Stove sensor
TS2: Tank sensor, top
TS3: Tank sensor, middle
TS4: Tank sensor, bottom
TS5: Sensor for external
additional heating*
RO1: Request for heat from
pellet
stove
RO2: Additional heating pump*
REL: Ext. additional heating*
* optional
22 smart Stove - 0142 - 42WMSUGAT2-C
HYDRAULIC SYSTEMS
DHW tank sensor
Optional sensor
Tank sensor, middle
Zone valve (230 V AC), see “Connection
of a zone valve to RO1/RO2” on page 46
Space heating
pump, see
“Blocking con-
nection of a
pump to REL” on
page 47
Domestic hot-water pump
Stove sensor
Tank sensor, top
Tank sensor, bottom
Power supply (230 V AC)
Request for heat (230 V AC), see
“Connection for request for heat to
RO1” on page 48
Hydraulic system 7: Pellet stove, tank with charging zones, external domestic hot-water tank
TS1: Stove sensor
TS6
REL
TS6
TS1
RO1
Connection of hydraulic system 7
RO2
TS2
TS8
TS3
TS4
TS2: Tank sensor, top
TS3: Tank sensor, middle
TS5
TS4: Tank sensor, bottom
TS5: Domestic hot-water tank
sensor
TS6: Supply line sensor or outdoor temperature sensor
(optional)
RO1: Request for heat from
pellet
stove
RO2: Zone valve
REL: Space heating pump
TS8: Domestic hot-water pump
smart Stove - 0142 - 42WMSUGAT2-C 23
FUNCTIONS FOR STOVE CONTROL
Functions for stove control
Fire detection
The “fire detection” recognizes, if fire in the wood log or pellet stove is burning.
When fire is detected, a flame symbol will be displayed ( or ).
Fire detection is performed by monitoring the stove temperature (TS1).
Fire detection with pellet stove
If a system with a pellet stove is configured, the option “fire detection with pellets” is available to
allow fire detection in combination with pellets.
• If “fire detection with pellets” is enabled, fire will be detected on and off in the same manner as with
wood log stove.
• If “fire detection with pellets” is disabled, the flame symbol will be highlighted when the request for
heat from the stove (RO1) is active.
Dynamic pump delay (DPD
When the stove is fired, a start condition for the charging pump must be fulfilled.
The dynamic pump delay ›DPD‹ is calculated as the product of temperature and time from the point
when the stove temperature (TS1) passes a set stove temperature ›Charge start‹. When the set
value of ›DPD‹ is reached, the pump starts.
The dynamic pump delay can be set in professional mode, see “Basic functions” on page 55.
Dynamic pump control
The charging pump should be speed-controlled to maintain a fixed stove temperature.
During commissioning, see “Checklist” on page 51, between dynamic pump control, pump speed
control, or combination of both must be selected. Speed control is available only for high efficiency
pumps (PWM or analog 0-10 V).
• In case of using a fixed-speed-pump, the start of the pump is triggered by reaching a fixed stove
temperature ›Charge start‹ and the fulfilled dynamic pump delay ›DPD‹. The dynamic pump con
trol is activated when the stove temperature (TS1) rises above the set stove temperature ›Charge
start‹.
• In case of using a speed-controllable pump, the start of the pump (at minimum speed) is triggered
by reaching a fixed stove temperature ›Charge start‹ and the fulfilled dynamic pump delay ›DPD‹.
The control of the pump is triggered by fulfilling a separate set-point (›Charge start‹ + ›Charge off
set‹) and the product of an increment factor with the minimum pump speed.
The following diagram illustrates the dynamic pump delay and dynamic pump control.
-
-
24 smart Stove - 0142 - 42WMSUGAT2-C
84˚C
50˚C
60˚C
70˚C
30%
(min)
50%
70%
80˚C
90˚C
40%
60%
80%
90%
100%
0
Time
Time
Stove
temperature
Pump control
DPD: Start condition fulfilled
Stop condition
fulfilled
›Charge start‹ +
›Charge offset‹
Increments
ON
OFF
FUNCTIONS FOR STOVE CONTROL
The pump starts when a fixed stove temperature ›Charge start‹ and the dynamic pump delay ›DPD‹
are reached (›Charge start‹
The pump increases its speed above (›Charge start‹ + ›Charge offset‹). With each temperature
increase by 1 K it will speed-up by an adjustable increment (default 5%).
The parameters for dynamic pump control can be set in professional mode, see “Basic functions” on
page 55.
Overtemperature protection
The temperatures of the stove and the tanks are monitored. When overtemperature occurs, at
wood-log stove the charging pump is forced to run. At pellet stove the stove is forced to stop.
The temperature limits can be changed in professional mode, see “Basic functions” on page 55.
* dt).
NOTICE
In order to avoid overheating, the wood log or pellet stove
must be equipped with its own overtemperature protection.
smart Stove - 0142 - 42WMSUGAT2-C 25
FUNCTIONS FOR STOVE CONTROL
Antifreeze protection
If the temperature at any sensor falls below the set value (AF, factory setting: 3°C, range: 2°C 10°C), the pumps will be are activated at 100%. In addition, an alarm message will be generated
(buzzer alarm selectable).
The parameters for antifreeze protection can be set in professional mode, see “Protective functions”
on page 63.
Anti-legionella function
To avoid possible affection of legionella at domestic hot water, a cyclic, thermic treatment shall take
place.
The anti-legionella function is only available, if domestic hot water heating is designated by the
selected hydraulic system.
The anti-legionella functions checks if the minimum temperatures for reduction of legionella has
been achieved in the tank due to heating activity within a set interval.
If no sufficient heating has taken place, the water will be heated up to disinfection temperature, specifically for reduction of legionella.
The installer must set the parameters based on the applicable general directives and local requirements. The time of the disinfection cycle can be determined freely.
The parameters for anti-legionella protection can be set in professional mode, see “Basic functions”
on page 55.
Additional heating
A dynamic recharge delay (DRD) postpones the activation of the additional heating. Before the additional heating is activated, the dynamic recharge delay has to expire.
The dynamic recharge delay is calculated by the minutes*degrees product. The recharging will start
at the calculated temperature point.
The DRD value can be set between 0 and 500 min*K (minutes * degrees Kelvin).
• With DRD = 0, the delay is disabled, additional heating will start immediately.
• Example DRD = 50 min*K: If the tank temperature falls by 10 K (e.g. from 50°C to 40°C), additional heating will start after 5 minutes (5 min * 10 K = 50 min * K). If the tank temperature falls by
5
K, additional heating will start after 10 minutes (10 min * 5 K = 50 min * K).
• Example DRD = 100 min*K: If the tank temperature falls by 10 K, additional heating will start after
10 minutes (10
With a bar graph inside of the heat-generator symbol, you will be informed about the progress of the
dynamic recharge delay.
During the falling of the tank temperature the following will happen:
• When the tank temperature falls below the set-point for additional heating, the calculation will be
started and the bar graph will start with a fully green coloured circle inside of the tank symbol.
• When the tank temperature reaches the calculated temperature of the dynamic recharge delay,
the symbol inside of the tank will switch to fire or electrical flash and the recharging is started.
The parameters for additional heating can be set in professional mode, see “Basic functions” on
page 55.
min * 10 K = 100 min * K), etc.
26 smart Stove - 0142 - 42WMSUGAT2-C
FUNCTIONS FOR STOVE CONTROL
Request for heat
The controller system is designed to control heat for space heating and domestic hot water separately.
For each demand a separate setpoint can be adjusted, one for request heat by stove, one to request
heat by an additional heater.
For example:
• Domestic hot water (DHW) setpoint stove = 65°C
• Domestic hot water (DHW) setpoint additional heater = 55°C
• Space heating (SH) setpoint stove = 50°C
• Space heating (SH) setpoint additional heater = 40°C
An occurring demand by temperature conditions is visualized by little symbol on the information
screen:
Request for heating domestic hot water
Request for space heating
Request for heat with wood log stove
With a wood log stove, a demand will activate an orange blinking background on the stove symbol
as an invitation to make fire. With an little delay, a buzzer will assist the request. The buzzer can be
enabled/disabled optionally.
If fire is made in the stove, it will be detected and the charging pump will be activated and controlled
automatically. With reaching the setpoint (stove), the related demand symbol will vanish.
With undercutting the setpoint for additional heater, what should be set always clear below the setpoint for stove, the additional heater will be activated immediately related to selected mode
(comfort) respectively with dynamic delay (eco).
Request for heat with pellet stove
In combination with an pellet stove, an occurring demand from domestic hot water or space heating
by the stove setpoint will activate the pellet stove. If it is enabled for providing heat, fire will be
detected and displayed, similar to wood log stove.
Request for additional heater is working in the same way as in wood log schemes.
smart Stove - 0142 - 42WMSUGAT2-C 27
Loading...