Instrukcja użytkownika GH10HA_U_v01a_w01_ENG
Contents
1. This procedure allows you to connect an additional pump that can be used as a mixing pump or a Hot utility Water HUW pump operating with or without higher priority The HUW pump is started when the boiler outlet water temperature is higher than 40 C and higher than the water in the HUW boiler to prevent cooling of the HUW boiler and the HUW boiler temperature is lower than the temperature set in the U2 setting Pump operation is indicated by a dot on the display next to the fan symbol If the boiler room is configured as shown in the diagram then the boiler controller has no external alarm output but allows to view the HUW boiler temperature by pressing ae Issue I APRIL 2013 GH10HA USER MANUAL PAGE 15 Use the following procedure to program operation of an additional pump in the Controller Set the desired FOO value Display shows Press and Save the 00 no pump operation 01 mixing pump 02 HUW pump winter mode without priority 03 HUW pump winter mode with priority 04 HUW pump summer mode hold for 25 new setting 8 3 HUW Priority The GH10HA Controller allows to set operation of the HUW pump with priority If you choose this mode of HUW pump operation the hot utility water heating is a higher priority function in the Controller To do this set the FOO service setting to the value of 3 8 4 Summer Mode The GH10HA Controller is equipped with a SUMMER MODE option that allows2. MANUAL FOR CONTROLLER GH10HA For controlling Holzgas forced circulation wood central heating boiler Program version 01 USER MANUAL We request that users carefully study applicable Instructions before connecting andstarting up any of our products Should any doubts arise please contact our Company between 8 a m and 4 p m Qr ME dex amo PY 9 10 11 12 GH10HA USER MANUAL PAGE 2 TABLE OF CONTENTS INTRODUCTION 2 GO Ue Exe onc diae A AGORA A 3 To GRAPHIC SYMBOLES A A dn Eu Rap vU I I NM EI E tats dE D Ras E CILE EE 3 1 2 KEYBOARD AND FUNCTION KEYS vot o RTR bra Ed VPE ORIS EEEE 3 GENERAL FEATURES obs cu eoe a VUE VD ex Moro uo Fe a obs dv vos dos v cuu E EU avo vU duo WAGOWE 4 TECHNICAE dada Loki A m wi dA 5 ELECTRICAL SYSTEM AND CONNECTION RULES cccccccccccccccccccccccccccccccccccccccccccccccccccccccccccece 5 OUICK START iocos evi GO EUN GA Ox uv E Os du redo vuv E vM d ha RUE E Tau eue dus dU 6 THE GHIOHA OPERATION 5 520 oeeuo EE OE Odd au v oou dU deu vd vu Oe ud eU Deae v Odd a rae ded ea Cuv eps 7 0 14 OPERATED FEATING SYSTEM 2 aaa nc RA OSG Pa cde Ip Pop hdc DUM te dok 7 6 2 AUTOMATIC OPERATION MODE saec rese tented Uo Ko EE GN sevo to redo bc divae to 8 6 3 MANUAL
3. After approximately 5s from limiter activation the Controller indicates the AL1 alarm Return to normal boiler operation is possible when the boiler temperature drops to a level enabling limiter reset temperature level depends on the limiter model used For safety reasons the Controller does not resume automatic operation on its own For the Controller to resume operation you have to after resetting the limiter press pressing for the first time cancels the alarm and disables the Controller pressing for the second time reactivates the Controller pressing causes the Controller to switch to automatic operation mode CAPILLARY TUBE PUNCTURE OR BREAKAGE INDICATES THAT TEMPERATURE LIMITER FILLED WITH LIQUID LEAKS WHICH RESULTS IN ABNORMAL OPERATION OF THE GH10HA CONTROLLER IN CASE IF THE ABOVE MENTIONED DEFECT IS FOUND IT WILL BE NECESSARY DISCONNECT TEMPERATURE LIMITER FROM THE GH10N CONTROLLER REMOVE IT AND REPLACE WITH A NEW DEVICE Issue I APRIL 2013 11 CONNECTION DEVICES TO THE GH10HA CONTROLLER OUTPUTS mm em mej SS ies Central Heating Pump C H a Central Heating Pump C H H U W Pump Mixing Pump fs H U W Pump Mixing Pump poz N Power Supply 230V ja L Power Supply 230V ET 02 DX DX 05 a A 08 E LN Pa Pa PPUH GECO Sp z 0 0 E C 32 060 Liszki Cholerzyn 376 tel 48 12 6369811 fax 6362002 www geco pl e mail geco geco pl L IN
4. 2013 6 THE GH10HA OPERATION 6 1 Operated Heating System 6 1 1 Central Heating cycle HUW cycle INPUTS OUTPUTS Water H U W cycle C H cycle comamer T1 Boiler temp P1 HUW pump T2 HUW temp P2 CH pump 6 1 2 Central Heating cycle mixing pump INPUTS OUTPUTS Water container T1 Boiler temp P1 Mixing pump C H cycle T2 Return temp P2 CH pump GH10HA USER MANUAL PAGE 8 6 2 Automatic operation mode The controller may work in one of two available automatic operation modes the AUTOMAT mode or the MAINTAIN mode When outlet water temperature is lower than preset one the controller works in the AUTOMAT mode If outlet water temperature is higher or equal to preset temperature the controller works in the MAINTAIN mode 6 2 1 Firing up After pressing push button the controller switches to the automatic operation mode which is indicated by lighting the upper indicator Om FIRING UP is the first stage of automatic operation and it is indicated by blinking lighting the upper indicator on p It s possible just in AUTOMAT mode FIRING UP process will be completed as soon as the temperature of outlet water from the boiler reaches the value of F6 4 C or when flue gas temperature reaches F43 if F11 0 the condition concerning F43 is omitted Firing up will also end when the unit switches to the MAINTAIN mode before occurrence of any of the conditions f
5. 6 4 Viewing Temperatures After pressing OJ the display shows water temperature at the boiler outlet Viewing temperatures flue gas and HUW return is available in the AUTO and MAINTAIN modes but only if the flue gas sensor or HUW return sensor are properly enabled z Press to view the flue gas temperature Press the key again to cancel the view The view is also cancelled after 10s from pressing of the key Press to get a HUW return temperature view Press the key again to cancel the view The view is also cancelled after 10s from pressing of the key 6 5 Alarm Conditions The Controller uses 7 different alarm conditions In each alarm condition the Controller displays the alarm number and activates the alarm sound output In case of several alarm conditions occurring simultaneously their numbers are displayed in sequence You can exit an alarm condition only by pressing This does not include the AL12 and AL7 alarm condition The damage of flue gas temperature sensor AL7 will not cause enter into a state of alarm the controller will work as in optimal flue gas temperature conditions AL7 alarm signalling occurs only when viewing flue gas temperature section 6 4 No sound signaling AL7 Alarm conditions AL1 STB activated or fuse blown AL2 Boiler water outlet temperature sensor failure e AL4 HUW return temperature sensor failure AL7 Flue gas temperature sensor failure e AL12 Boiler overheati
6. 98 11 636 12 90 fax 012 636 20 02 http www geco pl e mail geco 2geco pl
7. GH10HA CONTROLLER ccccccccccccccccccccccccccccccccccccccccccccccs 17 INFORMATION ON LABELLING AND COLLECTION OF WORN OUT ELECTRICAL AND ELECTRONIC Rn 18 Issue I APRIL 2013 GH10HA USER MANUAL PAGE 3 1 INTRODUCTION 1 1 Graphic symbols Symbols intended to indicate and at the same time emphasise the importance of text containing information that warns against dangerous situation have the following graphic forms Warning This symbol is used when it is necessary in described instructions to follow the sequence carried out operations The unit may be damaged or destroyed in case of any error or proceeding in discord with the description Important CE This symbol indicates information of particular importance Reference gt This symbol indicates occurrence of additional information in a chapter 1 2 Keyboard and Function Keys PROGRAMMING AUTO OPERATION INDICATOR AUTO MAINTAIN OPERATION ON OFF INDICATOR HUW PUMP MANUAL SWITCHING CH PUMP MANUAL SWITCHING UPWARD VALUE CHANGE DOWNWARDVALUE CHANGE CH AND HUW PUMPS MANUAL SWITCHING PUMPS OPERATION INDICATORS Issue APRIL 2013 GH10HA USER MANUAL PAGE 4 2 GENERAL FEATURES The GH10HA Controller is a microprocessor based device manufactured using the Surface Mount Technology SMT It is designed to control the processes of Hot Utility Water HUW heating and the main Central Heating CH
8. maximum speed You can change the setting using the following procedure Green LED lights on Save the new Move to the l the key Set the desired value setting U1 setting Display shows the UO Move to the U2 setting value setting 7 3 HUW Return Temperature Setting U2 This setting is available to the user only if the HUW heating option or return temperature stabilisation are used and the user configured the pump with the SOO service parameter by setting it to the values 01 02 03 04 gt section 8 2 page 13 You can modify this setting in a similar way to the described in sections 7 1 and 7 2 Settings are within the range of 35 C to 65 C 7 4 Anti Legionella Function U3 The GH10HA controller is equipment in Anti Legionella function which limit growth Legionella pneumophilia bacterium on HUW installation This function is available for users when value FOO service parameter was adjust 02 or The Legionella bacterium growth in water environment and the best condition is on 38 42 C temperature The Legionella bacterium can cause variety pneumonia disease called Legion fever To activate the ANTI LEGIONELLA function set the U3 setting to 1 When the function is active a blinking letter L is visible on the left part of the display before the displayed temperature value You can turn off the function by modifying the U3 setting to O or by pressing The
9. water circuit Control parameters can be adjusted to the current operating conditions and boiler type The Controller includes a system protecting from power outages and other different disturbances The GH10HA Controller is fitted with e inputs 1 Boiler output water temperature measurement NTC sensor 2 Flue gas temperature sensor in chimney PT1000 sensor 3 HUW boiler water return water temperature measurement NTC sensor 4 Door sensor reed relay It also contains four outputs allowing direct connection of 230 V AC devices i e fan CH circulation pump HUW pump or mixing pump depending on the type of the controlled heating system gt section 6 page 7 ALWAYS DISCONNECT THE CONTROLLER FROM POWER DURING THUNDERSTORMS Issue I APRIL 2013 GH10HA USER MANUAL PAGE 5 3 TECHNICAL DATA Power supply 230V AC 10 15 PT1000 sensor NTC sensor resistance Operating temperature NT resistance 5 C to 40 C characteristics RNA range characteristics Resistance Temp Resistance Fan protection 2A 717489 1000 00 Sensors type NTC 2 2kQ PT1000 1194 00 Sensors operating NTC 0 C 100 C 100 1385 10 temperature range PT1000 0 C 400 C 150 1573 30 1172 09 200 1758 60 795 08 250 1941 00 Maximum 547 95 300 2120 50 Output continuous load 384 62 350 2297 20 HUW pump mix pump 200W 275 86 400 2470 90 CH pump 200W 202 37 450 2641 80 550 2974 90 9 sno If an au
10. 2013 GH10HA USER MANUAL PAGE 10 6 2 4 Maintain Operation Mode The Controller gets into that mode when the boiler temperature reaches the value set by the user in the UO setting This mode of operation is indicated by lighting the lower indicator on le w In the MAINTAIN mode the fan works with efficiency set in parameter F32 when F32 lt U1 or with efficiency set in parameter U1 when F32 2 U1 If F32 0 the fan makes blows at maximum efficiency according to settings of parameters F26 and F27 The CH pump operates identically as in the AUTO mode WHEN 1170 CHIMNEY SENSOR OPERATION FAN SPEED IS REDUCED IN EACH OF AUTOMATIC OPERATION MODES I FLUE GAS TEMPERATURE EXCEEDS THE VALUE SET IN PARAMETER F42 6 3 Manual Operation Mode Pressing A causes the Controller to switch from automatic to manual mode and immediately deactivates the fan and the pump In this mode you can manually and independently activate and deactivate the HUW pump and the CH pump To do this follow the scheme below STEP 2 and Controller pump Sr pump indicates water temperature Lower key indicator lights up Upper key indicator lights up measured on the Press the key again to deactivate Press the key again to deactivate boiler the pump and the indicator the pump and the indicator CEP HUW PUMP CAN BE TURNED ON ONLY IF IT IS SELECTED IN SERVICE PARAMETERS Issue I APRIL 2013 GH10HA USER MANUAL PAGE 11
11. OPERATION MODE epp E taber a ek rea peer needa a ore predia 10 5 24 MIEWING TEMPERATURES wada tee id EW ORA Od DEL reds 11 5 5 ALARM CONDITIONS ua ad aan ea on LM R a a enw dka 11 0 0 BOWEPRTAIUEBE SSN ONA de TO CZ OZ ACZ A 11 5 7 BOLERBURNOUT DETECTION sodes eoo AZ Jaaa Tre eri do come AG AREA 12 USER SETTINGS sa Es a WZ b A OPP O RO oO Glo 12 Zl BOILER TEMPERATURE SETTING UO iip ree poe tes repe dO repre O DOE Aaaa Ed 12 EE D ndipiL Pun 13 7 3 HUW RETURN TEMPERATURE SETTING U2 13 JS ANTELEGIONELLA FUNCTION CUS eL Coat boob est uto i Pio c sien EG ID tne 13 OPERATING THE HUW BOUER cula Veso dad Odd vao envoie exp 14 Gb JINSTALATION AND CONNECTIONS lt i erue ee la hse n d eoe EP RE ER emper oe e dee a eov ak 14 8 2 CONFIGURATION OF ADDITIONAL PUMP ccccccecececcsccccacsceacsceceacsceacsceceacecsacececeaceceaeeceataceseaseceaeaceneacs 14 6 3 OW I SI ARR e enue 15 SUMMER T RTT c 15 ROOM THERMIOSTAT vus eive va vv vaa ive vut uev tee eov vat ix Cuva 15 TEMPERATURE LIMIIER SIB adi peut aep Caco ad pex see va quts deest vo ode subo eheu ets ve O ic 16 CONNECTION DEVICES TO THE
12. PUTS 50 51 Out water temperature sensor 5253 H U W Return temp sensor 22 F ut Imax 5A 01 02 Power supply 05 06 Central Heating Pump C H 07 08 H U W Pump Mixing Pump 12 14 Fan 15 16 Temperature limiter STB 50 51 Outlet water temperature sensor 52 53 H U W Temp sensor Return Temp 54 55 Flue gas temperature sensor 56 57 Open door sensor NTC NTC PT Tape C 1000 conto sg 828354059 585 Fig 1 Diagram of connection outputs inputs devices and temperature sensor the GH10HA controller ANY ADDITIONAL EQUIPMENT MAY BE CONNECTED TO THE GH10HA CE CONTROLLER ONLY BY PERSON LICENSED TO PERFORM ELECTRICAL INSTALLATION WORKS GH10HA USER MANUAL PAGE 18 12 INFORMATION ON LABELLING AND COLLECTION OF WORN OUT ELECTRICAL AND ELECTRONIC EQUIPMENT CAUTION This symbol placed on the product or its packaging indicates the need for selective collection of worn out electrical and electronic equipment It means that this product should not be disposed of with other household wastes Proper disposal of aged and worn out electrical and electronic equipment will help to avoid potentially adverse effects for environment and human health It is the user s responsibility to collect worn out equipment separately and to return it to an authorized disposal company Issue I APRIL 2013 P P U H Geco Sp z 0 0 Cholerzyn 376 32 060 Liszki Poland ph 012 636
13. anti legionella function is also cancelled after a power down The ANTI LEGIONELLA function has higher priority over other functions therefore it is performed by the Controller in the first order superior function When the function is activated the temperature of water in the boiler is increased to 70 C and maintained for a period of 10 minutes TURNING ON OF THE ANTY LEGIONELLA FUNCTION CAUSES RISE OF Th TEMPERATURE OF HUW WATER UP TO 70 C EXTRA CAUSION WHEN USING HUW MAY RESULT IN BURNING Issue I APRIL 2013 GH10HA USER MANUAL PAGE 14 8 OPERATING THE HUW BOILER The GH10HA Controller allows connection of an additional pump to control the Hot Utility Water HUW in the boiler 8 1 Instalation and Connections To use the Hot Utility Water HUW heating option perform the following actions 4 connect the boiler according to the enclosed diagram 5 install the HUW temperature sensor in the HUW storage We recommend mounting HUW temperature sensor in GECO measurin drain e You can not mount temperature sensors in measuring drain with wate or oil 6 connect the HUW temperature sensor to the Controller at the appropriate terminals as shown in Fig 2 7 configure the HUW pump for operation HUW temperature sensor is additional equipment and it s not includes CE the standard set controller GH10HA Additional equipment can be delivery according with additional order 8 2 Configuration of Additional Pump
14. emperature of water leaving the boiler exceeds 85 C and remains in operation regardless of other conditions such as thermostat room panel lock or DHW priority until the outlet water temperature falls below 84 C is turned off when the boiler extinguished algorithm is implemented following a fall in temperature of 10 C of water leaving the boiler after the fall of boiler outlet water temperature of 10 see the description of boiler extinguished detection for details When the anti legionella function of the CH pump is operating according to the algorithm contained in the description of anti legionella function Automatic mode When F0 0 2 The CH pump is switched on when the temperature of water leaving the boiler is greater than or equal to the value set in parameter F6 and is disconnected when the temperature falls below F6 3 C When the room thermostat is locked the CH pump disconnects four minutes after the lock is activated When the room thermostat is locked if the value of parameter F13 is greater than O the pump is connected periodically for 30 seconds according to F13 minute When S0 3 The CH pump operates as for FO O 2 also when it is necessary to heat DHW when the water temperature in the boiler is less than or equal to the set hot water temperature Tz and in the case of the anti legionella function when the temperature is less than or equal to 75 C The CH pump operates as for ro
15. mperature does not rise by 4 C then the CH and HUW pumps are switched off and the Controller goes into the burnout detection mode The Controller waits for the period of time set in the F10 setting during which it checks whether a rise of 4 C occurs If YES then the burnout detection condition is stopped and the CH and HUW pumps if necessary are started If NOT this means that the furnace is burned out the Controller enters the AL13 alarm condition STOPPING CH PUMP OPERATION IN BURNOUT DETECTION CS 7 USER SETTINGS IS INDICATED BY BLINKING THE UPPER INDICATOR ON 7 1 Boiler Temperature Setting UO You can change the boiler temperature setting using the following procedure Green LED lights on the Set a new desired Save the new key temperature within range temperature setting Display shows current permitted by the boiler Move to the U1 setting temperature setting manufacturer If during setting the new temperature Cs none of the following keys EJ 5 is pressed for 15 5 the new temperature will not be saved and the Controller will exit the programming mode Issue I APRIL 2013 GH10HA USER MANUAL PAGE 13 7 2 Fan speed U1 This setting determines the fan rotation speed and thus the amount of air delivered It allows to adjust the fan speed according to the type and quality of the fuel used This setting can be set within the range of 1 10 where 1 denotes minimum speed and 10
16. ng e AL13 Boiler burnout 143 Flame extinguished 6 6 Power Failure After a power failure the Controller starts to reactivate according to the condition it was in before the power down The Controller waits 1 minute to stabilise the mains power parameters and then restores operation with the previously programmed settings During the waiting period the display shows time in seconds remaining until the end of the period along with indication of its condition before the power outage e blinking A for AUTO mode e blinking P for MAINTAIN mode e blinking r for MANUAL mode 066 E m Respective indicators AUTO wl or MAINTAIN ww are blinking along with the letters Issue I APRIL 2013 GH10HA USER MANUAL PAGE 12 6 7 Boiler Burnout Detection 6 7 1 No Fuel If during automatic operation the boiler outlet water temperature remains below the F08 setting for a period of time set in the F09 setting then the Controller considers the boiler as burned out and enters the AL13 alarm condition If during automatic mode for time set in F9 parameter the flue gas temperature will be below value set in F11 parameter the controller recognizes that boiler has expired and AL13 occurs When F11 0 this detection including flue gas temperature is disabled 6 7 2 Sudden Drop of Outlet Water Temperature If during automatic operation the boiler outlet water temperature drops by 10 C and during that dropping period the te
17. om panel thermostat lock connecting periodically in accordance with parameter 13 When S0 4 The CH pump does not operate DHW Pump Mixer Pump In automatic and sustain mode the DHW and mixer pump operate according to the selected configuration When S0 0 no pump The output is used for indicating an alarm permanently switched on when the controller is in ALARM state When 50 1 Mixer pump The mixer pump turns off when the returning water temperature reaches the value set in parameter TsDHW and is activated when the return water temperature falls below TsDHW 3 C When SO 1 DHW pump The DHW pump is connected when 1 the water temperature in the boiler is lower than the preset temperature in parameter TsDHW and 2 the outgoing water temperature is higher than the temperature of the water in the boiler 1 C and 3 the outgoing water temperature is higher than 40 C The DHW pump is turned off when 1 the water temperature in the boiler is above the point set in parameter TsDHW during operation of anti Legionella function when the boiler water temperature is higher than 75 C or 2 the outgoing water temperature is lower than or equal to the water temperature in the boiler or 3 the outgoing water temperature is below 40 C When the anti legionella function is operating the DHW pump works according to the algorithm contained in the description of the anti legionella function Issue I APRIL
18. or firing up termination after outlet water has reached preset temperature value When firing up stage exceeds time preset in service parameter F45 firing up process will be stopped and ALARM 14 will be activated 6 2 2 Fan In MANUAL mode when door sensor function is active F46 1 and door sensor detect door open position than fan is on maximum rotation In the other situation door close position fan is off During FIRING UP stage the fan will start from minimal speed gear 1 and accelerate according to setting F31 until it reaches speed set in parameter F36 and in case if F36 O or F36 gt U1 up to the value preset in U1 In the AUTOMAT mode after firing up completion when F36 U1 the fan will be increasing its speed by one gear every 5s until it reaches speed set in parameter U1 If the boiler output water temperature value is lower equate than Tz F44 value than fan is working with speed sett in U1 parameter If the boiler output water temperature value is in range Tz F44 Tz value than fan is working with speed adjust by controller alghoritm During the Alert mode fan is off WHEN 1170 CHIMNEY SENSOR OPERATION FAN SPEED IS REDUCED IN EACH OF AUTOMATIC OPERATION MODES I FLUE GAS TEMPERATURE EXCEEDS THE VALUE SET IN PARAMETER S42 Issue I APRIL 2013 GH10HA USER MANUAL PAGE 9 6 2 3 CH Pump Regardless of the configuration of additional pump FO the CH pump is activated when the t
19. xillary or relay proxy is connected a circuit breaker dedicated this eg varistor must be used Failure to do so may result in controlle output malfunction or damage 4 ELECTRICAL SYSTEM AND CONNECTION RULES 1 The boiler room should be equipped with a 230V 50Hz electrical system according to the applicable regulations 2 The electrical system regardless of its type should be terminated with a connection outlet fitted with a protective terminal Use of an outlet without a protective terminal causes electrical shock hazard 3 Connectthe Controller to a separately installed power line protected with a properly selected quick circuit breaker or a residual current device RCD breaker Do not connect any other devices to this line THE CONTROLLER IS POWERED FROM 230V 50HZ MAINS ANY REPAIRS MAY BE CARRIED OUT ONLY WITH POWER SUPPLY CUT OFF AT THE FUSE Issue I APRIL 2013 GH10HA USER MANUAL PAGE 6 5 QUICK START To quickly start the GH10HA Controller perform the following actions 1 Connect the device to the 230V AC power system put the plug in the power outlet Geco Geco ai Ol 5 roll CCo Yf 3 Press A Screen appears Fool and the Controller starts automatic operation according to the factory settings Table 1 Factory settings chart User Description Factory parameter setting Boiler preset temperature HUW return set temperature Issue I APRIL
20. you to turn off the CH pump for the summer season and the boiler operates only to supply the HUW water To do this set the FOO service setting to the value of 4 9 ROOM THERMOSTAT The GH10HA controller is provided with an option allowing to operate furnace door opening sensor If furnace door is opened either in MANUAL or AUTOMAT mode the fan will be switched on and it will be working at its maximum speed set in service parameter F2 for 15 minutes After this time due to safety reasons the fan will stop to work with maximum efficiency and return to work according to applicable settings and operation mode Furnace door closing door opening sensor activation will also make the fan return to nominal operation If Thue gas F42 or T poiter gt F1 7 j the fan will be definitely switched off Furnace door sensor operation is activated by setting service parameter S46 1 Actuation of door opening sensor is indicated by icon dr on the controller main screen Issue I APRIL 2013 GH10HA USER MANUAL PAGE 16 10 TEMPERATURE LIMITER STB The GH10HA Controller can be equipped with an additional independent temperature limiter STB via terminals 15 and 16 WHEN THE TEMPERATURE LIMITER IS NOT USED TERMINALS 15 e AND 16 SHOULD BE SHORTED If due to boiler temperature rise the temperature limiter is activated and opens its terminals it will disable feeder and fan power supply in order to stop fuel and air delivery do the boiler
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