KWB Easyfire User manual

The Biomass Heating System
We Provide Energy for Life!
Original manual
Operation
Pellet Heating System
KWB Easyfire 8-35 kW

Table of Contents (Index)
1 General 7
1.1 About this Manual 7
1.2 Explanation of the Formatting 7
1.3 Please note 8
2 Overview 10
2.1 System components 10
2.2 Safety elements 10
2.3 Fire safety regulations 11
3 Operating fundamentals 12
3.1 Main switch 12
3.2 Introduction to the KWB Comfort 3 control 12
3.2.1 Introduction 12
3.2.2 Menu navigation 13
3.2.3 Changing values 13
3.2.4 Operating example 13
3.3 Regulating the domestic hot water 14
3.4 Regulating the room temperature 15
3.5 Regulating the fuel supply 15
3.5.1 Specifying the filling times (suction systems) 15
3.6 The system in the yearly cycle 15
3.6.1 Shutting down the system 16
3.6.2 Restarting the boiler after periods of standstill 16
3.7 Reacting to problems 16
3.7.1 Setting the date and time of day 17
3.7.2 Calling customer service 17
3.7.3 Additional temporary setting options 17
4 Operating the analogue remote control unit 18
5 Regular tasks 19
5.1 Fuels 19
5.1.1 From local standards to the EN14961 19
Table of Contents (Index)
2B KWB Easyfire EN, 05.2011

5.1.2 Filling / refilling with fuel 19
5.1.3 Emptying the fuel storage room 20
5.2 Ash container 20
5.2.1 Removing the ash container 20
5.2.2 Emptying the ash container 20
5.2.3 Attaching the ash container again 21
6 The commands of the KWB Comfort 3 control 22
6.1 Overview 22
6.2 System on/off 22
6.3 Room temperature 23
6.4 Party operation 23
6.5 Heating circuits 23
6.5.1 Heating programs 24
6.5.2 Changing heating times 24
6.5.3 Holiday program 26
6.6 Boiler 26
6.6.1 DHWC program 26
6.6.2 Charging times 27
6.6.3 DHWC temperature 27
6.6.4 Holiday program 28
6.6.5 Fast charging 28
6.7 Buffer 28
6.7.1 Buffer program 28
6.7.2 Charging times 29
6.7.3 Buffer temperature 30
6.8 Operational state 30
6.8.1 Boiler 30
6.8.2 Heating circuits 32
6.8.3 Boiler 33
6.8.4 Buffer 34
6.8.5 Fuel extractor (worm) 35
6.8.6 Fuel extractor (suction system) 35
6.8.7 Second boiler 37
6.8.8 Power measurement 37
6.9 Date / Time 38
Table of Contents (Index)
B KWB Easyfire EN, 05.2011 3

6.10 Pellet suction system 38
6.11 Customer service 39
6.12 Alarms 39
6.12.1 Displays 39
6.12.2 Log 40
6.12.3 Statistics 40
6.12.4 Rectifying 40
6.13 Boiler program 40
6.13.1 Changing times 40
6.14 Extensions 41
6.14.1 Comfort SMS 41
6.15 Expert level 41
7 Maintenance 42
7.1 Standards for maintenance 42
7.1.1 Weekly visual inspection 42
7.1.2 Monthly inspections 42
7.1.3 Additional regular work 42
7.1.4 Professional maintenance 43
7.1.5 Forms 43
7.2 Maintenance intervals 46
7.2.1 Reasons for on-going, professional maintenance service 46
7.3 Before you begin 46
7.4 Maintenance steps 47
7.4.1 Cleaning the surfaces 47
7.4.2 Checking the combustion chamber 47
7.4.3 Emptying the ash container 47
7.4.4 Cleaning the burner plate and ignition pipe 48
7.4.5 Flue gas collecting chamber and induced draught fan 49
7.4.6 Cleaning the head section for suction conveyor system 49
7.4.7 Cleaning the fill level sensor in the suction tank 50
7.5 Interruption of operation 50
8 Troubleshooting 51
8.1 Reacting to alarms 51
8.1.1 Displaying the alarm log 51
Table of Contents (Index)
4B KWB Easyfire EN, 05.2011

8.1.2 Displaying the alarm statistics 51
8.2 The alarm list 52
8.2.1 Alarm 00 – The control system is not completely adjusted 52
8.2.2 Alarm 01 – The memory module is faulty 52
8.2.3 Alarm 02 – Electronic defect on the digital inputs 52
8.2.4 Alarm 03 – The time must be reset 52
8.2.5 Alarm 04 – The maintenance interval has elapsed. Notify customer serv-
ice.
52
8.2.6 Alarm 05 – Safety thermostat! Boiler overheating! 53
8.2.7 Alarm 06 – Main drive motor is overheated! 53
8.2.8 Alarm 07 – The ignition does not function! 53
8.2.9 Alarm 08 – The fuel storage bunker is empty! Please refill! 54
8.2.10 Alarm 09 – Flue-gas sensor values not plausible! 54
8.2.11 Alarm 10 – The return flow boost does not function! 54
8.2.12 Alarm 12 – Flue-gas temperature too low during operation 55
8.2.13 Alarm 13 – Temperature increase in the fuel supply, fire alarm! 55
8.2.14 Alarm 14 – The electronics have a temperature of 70 °C! 55
8.2.15 Alarm 15 – The flue-gas sensor is missing or is defective! 55
8.2.16 Alarm 16 – The flue-gas sensor cable is missing or is defective! 55
8.2.17 Alarm 17 – The boiler sensor is missing or is defective! 56
8.2.18 Alarm 19 –The ash container is not installed correctly! 56
8.2.19 Alarm 21 – Configuration error! The configuration last saved is active! 56
8.2.20 Alarm 22 – Flue-gas temperature too high during operation 56
8.2.21 Alarm 23 – The fuel storage container is empty! 56
8.2.22 Alarm 24 – Error on the sample probes system 57
8.2.23 Alarm 25 – Main drive speed too low! 57
8.2.24 Alarm 26 – Main drive speed too high 57
8.2.25 Alarm 27 – Boiler temperature not plausible! 57
8.2.26 Alarm 30 –The forward flow sensor of heating circuit 0 is missing or defec-
tive!
57
8.2.27 Alarm 31 – The room sensor of heating circuit 0 is missing or defective! 57
8.2.28 Alarm 32 –The outdoor sensor of heating circuit 0 is missing or defective! 57
8.2.29 Alarms 33 to 134 58
8.2.30 Alarms 135 to 151 – The sensor from the boiler x is missing or defective! 58
8.2.31 Alarms 152 to 185 – The sensor 1 (2) from the buffer x is missing or de-
fective!
58
8.2.32 Alarm 187 – Network error on the boiler module 2! 58
8.2.33 Alarms 188 to 203 – Network error on the heating circuit module x! 58
Table of Contents (Index)
B KWB Easyfire EN, 05.2011 5

8.2.34 Alarms 204 to 237 – Network error on the digital remote control unit x! 59
8.2.35 Alarm 238 – Fault in the heating circuit network 59
8.2.36 Alarm 239 – The boiler sensor on the second boiler is missing or is defec-
tive!
59
8.2.37 Alarm 240 – The negative pressure in the combustion chamber cannot be
regulated!
59
8.2.38 Alarm 241 – The negative pressure sensor is defective! 60
8.2.39 Alarm 242 – The oxygen sensor is missing or is defective! 60
8.2.40 Alarm 244 – Calibration error of the lambda probe 60
8.2.41 Alarm 246 – No flame detectable 60
8.2.42 Alarm 248 – The maintenance interval has elapsed. 60
8.2.43 Alarm 249 – The chimney sweep function is active 60
8.2.44 Alarm 250 – PCB revision and system number are not compatible 60
8.2.45 Alarm 251 – The emergency stop switch is pressed! 61
8.2.46 Alarm 253 – Speed of the PA fan is too low! 61
8.2.47 Alarm 254 – The speed of the induced draught fan is too low! 61
8.2.48 Alarm 255 – Error GSM module 61
9 Appendix 62
9.1 Efficient and low-emission operation 62
9.2 Stickers 62
9.2.1 Stickers on the switch bracket 62
9.2.2 Stickers on the front 63
9.2.3 Stickers on the rear side 63
9.2.4 Stickers on the blow-in nozzle 64
9.2.5 Stickers on the storage room 65
TTD-EF2 66
KE_KWB_EF2 68
Glossary 69
Keyword index 70
Table of Contents (Index)
6B KWB Easyfire EN, 05.2011

General
About this Manual
This manual contains all the required information für den Betrieb und die Bedienung. The chap-
ter sequence corresponds to the recommended workflow. For further queries please contact
your sales partner or KWB Customer Service.
The KWB – Kraft und Wärme aus Biomasse GmbH including their country representatives and
authorised competence partners are hereinafter referred to as KWB in short.
The KWB Managing Directors Stephan Jantscher and Erwin Stubenschrott
Our objective is to constantly improve our products and manuals –
we would appreciate your comments and suggestions.
You can find all contact data on the back side of this document.
Original manual – Subject to change. No responsibility accepted for errors and
omissions!
Explanation of the Formatting
We use different symbols for the requirements, the actual work steps and the results
mRequirement
4Work step
9Result
1
1.1
1.2
Work steps
General 1
B KWB Easyfire EN, 05.2011 7

Keywords at the left of the text columns help you identify the contents of the paragraph.
You can recognise a reference to another section in this document by an arrow and the page
number in square brackets. Example: About this Manual [► 7]
Please note
Grading of the safety instructions
KWB protects you in the documents with the most internationally secure and modern warning
system. Signal words, colours and texts change with increasing danger:
NOTICE General information
We use this display to indicate and describe important information.
CAUTION Beginning hazard
We use this display to indicate and describe beginning hazards. If these stated
hazards are not observed, injuries, property damage and environmental
damage can occur.
WARNING Medium hazard
We use this display to indicate and describe hazards. If this warning is not ob-
served, severe or fatal injuries can occur.
DANGER Serious hazard
We use this display to indicate and describe serious hazards. Disregarding
this warning will lead to serious or fatal injuries!
General safety instructions
•Do not alter the system in any way!
• Close all provided covers before you place the system into operation!
• Unplug the connector before you perform any service or open the control!
• Always disconnect the power supply before you enter the fuel storage room.
NOTICE Proper installation by specialists
mThe entire installation, integration and commissioning of the heating system
may only be carried out by expert specialists of KWB or their partners.
4All the work must conform to the specifications stated in the KWB manuals
and local regulations.
Comply with the safety instructions
NOTICE Please comply with the safety instructions
Your system has been tested for safety and it satisfies the applicable standards,
directives and regulations.
Failure to comply with the safety instructions or improper use poses danger of
material damage. In addition, failure to comply with the safety instructions or
improper use also poses a life-threatening hazard!
Side text
Cross referen-
ces
1.3
1.3.1
1.3.2
1General
Please note
8B KWB Easyfire EN, 05.2011

Please read and follow the manual
NOTICE Please read this manual carefully before installation or commissioning!
Compliance with this manual and proper installation or commissioning is a pre-
requisite for warranty provided by the KWB .
4If something is not clear, please look it up in this manual or contact the
KWB customer service.
Legal
Intellectual Property
© 2010 KWB – Kraft und Wärme aus Biomasse GmbH
All catalogues, brochures, diagrams, drawings, manuals and control and adjustment pro-
grammes etc. are protected as intangible property and always remain the intellectual property
of KWB. Any use, reproduction, distribution, publication, processing and/or other transfer to
third parties requires the prior written consent of KWB.
When operating the contractual goods, the installation, operating and other technical regula-
tions and instructions from KWB must be strictly observed and adhered to.
NOTICE Warranty
mThe manufacturer’sKWB warranty specifies proper installation and commis-
sioning of the system as the prerequisite. Defects and damage due to im-
proper installation, commissioning and operation are excluded from the
warranty.
4The manufacturer’s instructions must be complied with to ensure proper
system function. Knowledge of the manuals is a prerequisite.
4Use only original parts or parts that have been expressly approved by the
manufacturer.
4If something is not clear, please look it up in this manual or contact the
KWB customer service.
Liability / Warranty
Any change and / or modification of the contractual goods or in the operation of the contractual
goods not expressly authorised by KWB in writing or their operation in conjunction with other
devices or accessories the compatibility of which has not been expressly confirmed by KWB,
any inappropriate operation/use (e.g. the use of fuels and/or water not in accordance with
standards which do not correspond to VDI 2035 or ÖNORM H 5195-1; inappropriate and / or
excessive use) leads to the exclusion of the warranty. Any liability or warranty for compatibility
of the contractual goods with other products, systems, plants or parts, as well as the suitability
thereof for a specific use are excluded unless otherwise expressly permitted in writing.
Intended use
KWB boilers heat water for central heating systems. The application, operation, maintenance
and repair of KWB systems must, without exception, be performed as described in the instruc-
tions.
The following fuels are prescribed without exception.
Any other use is regarded as NOT designated. Resulting damage is the liability of those operat-
ing the system and users.
1.4
General 1
Legal
B KWB Easyfire EN, 05.2011 9

Overview
System components
21 53 4
Schematic diagram of the system elements
1 Fuel storage room 4 Burner with heat exchanger and control
2 Conveyor system:
Suction conveyor system and/or worm
5 Ash container
3 Hopper (optional)
Safety elements
We have taken the following measures in order to maximize the safety of our systems.
Cellular wheel sluice
The cellular wheel sluice, developed by KWB as backfire-protection device ( according to
TRVB H118), prevents fire from being able to spread back to the fuel feed from the combustion
chamber.
Negative pressure monitoring
The continuous monitoring and control ensures the negative pressure in the combustion cham-
ber.
Photocell monitoring
Direct photocell monitoring of the combustion chamber allows the control to be able to react
significantly faster because it does not have to wait for a temperature change at a measure-
ment point.
Safety thermostat
This system switches off the heating system if the boiler temperature should increase to 95 C.
Sensor for flue gas temperature
In conjunction with the photocell, the sensor for flue gas temperature monitors the fill level and
the ignition procedure in the combustion chamber.
Photocell
In conjunction with the sensor for flue gas temperature, the photocell monitors the fill level and
the ignition procedure in the combustion chamber.
Lambda control system
The lambda control system adapts the combustion to various fuel qualities.
2
2.1
2.2
2Overview
10 B KWB Easyfire EN, 05.2011

Limit switch for the ash container
If the ash container is removed, a switch triggers the immediate reaction:
•A negative pressure is built-up (the induced draught fan is stepped-up).
• The fuel conveyor is stopped and the combustion is shut down.
Fire safety regulations
For systems in Switzerland: Low-emission operation according to VHe homologation is only en-
sured when the plant can be operated at low flue-gas temperatures of the smallest thermal out-
put (30 % of nominal load). Usually this requires a condensation-resistant chimney. If you have
any questions about this, please contact your installation company.
Due to the high boiler efficiency rate, the chimney design should be executed so that it is re-
sistant to moisture. A moisture-resistant chimney design means that there will be no moisture
penetration or damage to the brickwork, even though the temperature level in the flue-gas path
remains permanently below the flue-gas dewpoint (see DIN 18160).
2.3
Overview 2
Fire safety regulations
B KWB Easyfire EN, 05.2011 11

Operating fundamentals
Please read through this instruction manual completely before operating the system. If you are
unsure about anything, please contact KWB customer service or your personal KWB partner!
Main switch
The main switch is located on the front right-hand side: This switches the power supply of the
system on and off.
1
2
3
KWB Easyfire control elements
1 Main switch 3 Safety temperature limiter STL
2 Measuring mode button (ONLY for special-
ists!)
Operate the main switch (1) during maintenance or repair work or when the system is to re-
main switched off for a longer period of time. In the scope of our instructions, we indicate the
appropriate point in time for this.
Shortly after switching on your system, the control unit will display the so-called "Header
screen". The control is now at your disposal.
4Press the "Set" button and switch to the main menu.
Introduction to the KWB Comfort 3 control
Introduction
The header mask will appear shortly after you switch on the system using the main switch.
Press the "Set" button to get to the main menu.
Boiler control unit or digital remote control unit
Menu structure
You can move from the Main menu to submenus and settings of your choice using the dial and
the two buttons "Set" and "Esc". From here, you can read off the information or change values.
3
3.1
3.2
3.2.1
3Operating fundamentals
12 B KWB Easyfire EN, 05.2011

Header
Titel
Info 0
Info 1
OK mit Set ((o))
Titel
Info 0
Info 1
OK mit Set ((o))
Display area
Footer Alarm symbol
• The header shows where you are located in the menu tree.
•The text of the footer provides you with information about whether the display area con-
tains selection menus ("Select option") or settings ("Change with set").
•alarm messages are displayed in the lower right corner.
Menu navigation
All commands of the KWB Comfort 3 are combined at multiple levels – this alleviates you from
having to run through endlessly long lists in order to access the desired menu command.
Select the option using the dial
4Turn the dial on the KWB Comfort 3 to the left or right.
9The black bar moves up or down. This allows you to select an option in the current level or
select a field whose value you would like to change.
"Set" takes you one level down
4Press the "Set" button.
9This will confirm the selected option and take you one level down. You will find a list of
subordinate options or you can set values here.
"Esc" takes you one level higher
4Press the "Esc" button.
9This will take you back one level higher in the direction of the main menu.
Changing values
Via the option in different levels, you will get to masks in which you can change certain values.
Use the dial to change the values
4Turn the dial on the KWB Comfort 3 to the left or right.
9This will reduce or increase the value in the selected field.
Confirm the change with "Set"
4Press the "Set" button.
9This will confirm the modified value.
Use "Esc" to cancel the change
4Press the "Esc" button.
9This will quit the change without saving the new value. This will simultaneously take you
one level higher in the direction of the main menu.
Operating example
You can navigate to a setting using the dial and the "Set" button (this example changes the
desired room temperature during the day):
Basic screen
structure
3.2.2
3.2.3
3.2.4
Operating fundamentals 3
Introduction to the KWB Comfort 3 control
B KWB Easyfire EN, 05.2011 13

Hauptmenü
Anlage Ein/Aus
Raumtemperatur
Boiler
Heizkreise
Betriebszustand
Option wählen
Hauptmenü
Anlage Ein/Aus
Raumtemperatur
Boiler
Heizkreise
Betriebszustand
Option wählen
Betriebszustand
Betriebszustand
Set
Raumtemperatur
Heizkreis 0
Heizkreis 1
Ändern mit Set
Raumtemperatur
Heizkreis 0
Heizkreis 1
Ändern mit Set
Set
HK- 1 Aus
Ist Temperatur:: 20°C
Soll Tag: 20°C
Soll Nacht: 16°C
Werte eingeben
HK- 1 Aus
Ist Temperatur:: 20°C
Soll Tag: 20°C
Soll Nacht: 16°C
Werte eingeben
20°C
20°C
16°C
16°C
Set
Press the "Esc" button more than once to climb one level higher in the menu tree.
Hauptmenü
Anlage Ein/Aus
Raumtemperatur
Boiler
Heizkreise
Betriebszustand
Option wählen
Hauptmenü
Anlage Ein/Aus
Raumtemperatur
Boiler
Heizkreise
Betriebszustand
Option wählen
Raumtemperatur
Heizkreis 0
Heizkreis 1
Ändern mit Set
Raumtemperatur
Heizkreis 0
Heizkreis 1
Ändern mit Set
HK- 1 Aus
Ist Temperatur:: 20°C
Soll Tag:
19°C
Soll Nacht:
16°C
Werte eingeben
HK- 1 Aus
Ist Temperatur:: 20°C
Soll Tag:
19°C
Soll Nacht:
16°C
Werte eingeben
Esc Esc
The effect of the operating elements is thus dependent on the current mode (navigation or
change):
Operating ele-
ment
Navigation mode Change mode
Dial Changes active field Changes selected value
"Set" button Selects menu item or
switches to the change mode
Confirms change
"Esc" button Switches to higher menu level Discards the current change or
switches to the navigation mode
Regulating the domestic hot water
The DHWC ("Boiler") is responsible for the water preparation water treatment.
Specifying the temperature of the hot water
Correct the values in the menu "Boiler temperature" [► 27]
Main menu >> Boiler >> Boiler No. >> Boiler temperature
as desired.
Specifying the charging times for hot water
If the hot water is not hot enough at certain times, you must change the time interval in which
the operating temperature of the DHWC is monitored ("Charging time" [► 27]) in the menu
Main menu >> Boiler >> Boiler No. >> Charging times
.
Heating up the hot water immediately
If the hot water is to be heated up immediately, use the Fast charging [► 28]: In the menu
Main menu >> Boiler >> Fast charging
, change the value to On.
Summary
3.3
3Operating fundamentals
Regulating the domestic hot water
14 B KWB Easyfire EN, 05.2011

Regulating the room temperature
You can regulate the room temperature …
with a digital remote control unit or with a boil-
er control unit
with an analogue remote control unit
Specifying the room temperature
Correct the values in the menu "Room tempera-
ture" [► 23]
Main menu >> Boiler >> Room tem-
perature >> Heating circuit No.
as desired.
Use the dial to increase or decrease the set room
temperature by up to 5° C.
Specifying the heating times
If the radiators or the underfloor heating is not
warm enough at certain times, you need to
change the time period for all days ("Monday-Sun-
day") or an individual day in the menu
Main menu >> Heating circuits >>
Heating circuit No. >> Change
heating times
: Changing heating times [► 24].
—
Activating party mode
For a one-time extension of the heating time, se-
lect the "Party mode [► 23]" in the menu
Main menu >> Party mode >> Heat-
ing circuit No.
Specify until which time the selected heating cir-
cuit is to remain at the target day temperature. Af-
ter this, the system runs normally again (normally
the night lowering usually follows).
If you set the selector switch to the "Day opera-
tion" operating mode, the heating system will heat
this heating circuit to the specified target day tem-
perature.
You will find additional information on these components in section Operating the analogue
remote control unit [► 18].
Regulating the fuel supply
Specifying the filling times (suction systems)
In the menu Main menu >> Pellets suction system [► 38], you can change the filling
times if the filling noise of the suction system is disturbing.
• The filling times must be at least 30 minutes long.
• Your entry will be automatically checked and corrected by the software, if necessary.
The system in the yearly cycle
Particularly in the transition periods, it is attractive to activate the Heating program [► 24]:
(Main menu >> Heating circuits >> Heating circuit No. >>
Heating program)
• In the autumn, switch to "Transition", and only later to "Heating program 1" or "Heating pro-
gram 2".
• In the spring, you should switch back to "Transition" and later to "Off".
3.4
3.5
3.5.1
3.6
Operating fundamentals 3
Regulating the room temperature
B KWB Easyfire EN, 05.2011 15

Shutting down the system
Switch off your heating system at the end of the heating season and in the event of malfunc-
tion. By doing this, you will prevent damages that can be caused by lightning.
NOTICE For the sake of the environment: Allow the system to cool down in a con-
trolled way!
4Switch off your system via the "System On/Off" [► 22] option.
4Switch off the system 15 minutes later at the main switch (deenergized).
9Now the fuel in the combustion chamber is burned with minimal environ-
mental impact.
Restarting the boiler after periods of standstill
WARNING Unforeseeable consequences (personal injury and property damage) due to
incorrect commissioning
mThe initial commissioning requires comprehensive specialised knowledge:
Only qualified and certified specialised personnel may place the system into
operation!
4Before commissioning, read through your documents from the commission-
ing training!
4Adhere to the sequence specified in it and to the specifications in the work-
ing steps.
4Switch the system on using the main switch.
4When the battery is flat, you will need to reset the date and time of day (sectionDate /
Time [► 38]).
4Switch on the system with the "System On / Off" function (Section System on/off [►
22]).
9The fuel supply to the burner begins (operating state "Ready (-FS)". This procedure can
take up to 30 minutes if the conveyor system is empty.
9Fuel is conveyed to the burner plate (operating state "Ignition feeding") and ignited (op-
erating state "Ignition heating"). If the stoker worm was empty, several ignition attends
may be necessary until a fuel bed forms (operating state "Complete ignition").
9The system switches to the operating state "Mode", heats the boiler and supplies the
consumers when there is a heat request.
9If the setpoint temperature is reached, the system switches to standby (operating state
"Ready (+Req)").
Reacting to problems
You can find a complete list of the alarm messages for your boiler and the possible reactions to
them in section The alarm list [► 52].
3.6.1
3.6.2
3.7
3Operating fundamentals
Reacting to problems
16 B KWB Easyfire EN, 05.2011

Setting the date and time of day
If the system was without power and the battery of the boiler control unit is flat, the internal
clock will stop working. If this occurs, the alarm message "03 The time of day
must be reset!" will then appear on the boiler control unit.
More information about this is available in section Date / Time [► 38].
Calling customer service
•When calling customer service please have the boiler type (specified on the type plate) at
hand.
The following menus are helpful when contacting KWB customer service:
• The "Customer service" menu (section Customer service [► 39]) shows the software
version used and the number of maintenances.
• The "Operating state" menu (section Operational state [► 30]) shows the operating
states or measured values of all important components (motors, sensors …).
Querying the operating states
You can display many of the measured values and states of the entire system via the "Operat-
ing state" option. This allows you (or customer service) to be able to find the cause of possible
faults and alarms in a targeted way.
Access this via the Main menu >> Operating state; you can find additional infor-
mation in section Operational state [► 30].
Additional temporary setting options
mYou can temporarily expand your setting options if instructed to do so by KWB customer
service.
4Follow the instructions of KWB customer service exactly – any deviation can have unfore-
seeable consequences and even lead to the destruction of your system!
3.7.1
3.7.2
3.7.2.1
3.7.3
Operating fundamentals 3
Reacting to problems
B KWB Easyfire EN, 05.2011 17

Operating the analogue remote control unit
Analogue remote control unit
If your system is equipped with a weather-sensitive heating circuit control system, you can
control individual heating circuits with an analogue remote control unit depending on the room
temperature.
You can use the dial on the analogue remote control unit to change the desired room tempera-
ture. At the “+” stop, the room temperature is increased by 5 °C, at the “-" stop, it is lowered
by 5 °C. Please observe that the "Room temperature" value in the boiler control unit remains
unchanged.
The following modes can be set on the selector switch of the analogue remote control unit:
Analogue remote control unit operating modes
Standby mode
The heating circuit is switched off in this mode. However the frost protection function is active.
The boiler must be switched on for this (section "System On / Off").
Night mode
The heating circuit is always maintained at the set night lower temperature.
Automatic mode
The heating circuit is operated according to the set time program, i.e. within the set heating
times at day temperature - except at night lower temperature where it is held or shut off.
Day mode
The heating circuit is always maintained at the set day temperature.
4
4Operating the analogue remote control unit
18 B KWB Easyfire EN, 05.2011

Regular tasks
Fuels
From local standards to the EN14961
The quality requirements for pellets were adhered to, in Germany in the DIN 51731, in Austria
in the ÖNORM M 7135 and in Switzerland in the standard SN 166000.
With the certificate "DIN-Plus", the DIN 51731 and ÖNORM M7135 were unified and supple-
mented by requirements for abrasion resistance and testing procedure.
The "EN14961" replaces the respective national regulations: The corresponding "ENplus" certifi-
cate simplifies the difficulty consumers have when selecting but it also regulates the professio-
nal handling of the pellets by the trade: Gentle transport, optimal filling of the pellet storage
container ...
The pellets for your KWB heating system must comply with one of the following standards:
•ÖNORM M 7135 or DIN 51731 (standardised quality requirements) or
• "ENplus"certificate according to standard EN 14961-2 (www.enplus-pellets.de)
• SN 166000
Inferior fuels lead to increased emissions and to sintering of the boiler. Only high-quality pellets
ensure a reliable and clean operation of your system and low operating costs. Observe the cor-
responding certificate of your supply company.
Filling / refilling with fuel
If the system is not filled in due time, the Alarm 08 – The fuel storage bunker is empty!
Please refill! [► 54] appears and the system switches off.
WARNING Toxic gases
mToxic gases can enter the storage room as a result of the negative pressure
during the filling process! This could lead to serious personal injury or death.
4Please ensure that when maintenance and repair work is being carried out
the entire heating system has been shut down with the help of the main
switch!
4Switching the system off (System on/off [► 22])
4Seal the openings of the storage room so they are dust-tight
The spring arms of the stirrer must NOT be retracted during the filling of the
storage room.
See also
2System on/off [➙ 22]
2Alarm 08 – The fuel storage bunker is empty! Please refill! [➙ 54]
5
5.1
5.1.1
EN14961
Intended fuels
5.1.2
Regular tasks 5
B KWB Easyfire EN, 05.2011 19

Emptying the fuel storage room
NOTICE Clean fuel storage room for reliable operation
4Keep your storage room clean and dry – perform all the inspections and
maintenance work.
4We recommend emptying the storage room completely from time to time.
This allows you to thoroughly remove fuel dust. Doing so will reduce the
risk of a dust explosion and simultaneously improves the reliability of the
heating system.
Ash container
Removing the ash container
4Fold open the swing doors to both sides of the ash container.
1
4Open the fasteners (1) on both sides of the ash container.
4The system switches off as soon as you pull the ash container from the boiler.
Handle and wheels on the ash container are optionally available
4Turn the closing cap on the back side of the ash container via the opening.
9The ash container is now ready to transport for emptying.
Emptying the ash container
WARNING Risk of fire from embers
4Only empty out cold ashes!
5.1.3
5.2
5.2.1
5.2.2
5Regular tasks
Ash container
20 B KWB Easyfire EN, 05.2011