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AUTOFLAME Mk8 MM, Техническое руководство

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1      Sensors  

Page | 26  

 

MM Application Possibilities 

Steam Pressure Sensor 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

Содержание Mk8 MM

Страница 1: ...Combustion Management Systems MM APPLICATION POSSIBILITIES Technical Manual 18 12 2019...

Страница 2: ...tion Possibilities 18 December 2019 This manual and all the information contained herein is copyright of Autoflame Engineering Ltd It may not be copied in the whole or part without the consent of the...

Страница 3: ...echnical disciplines that are inherent to the Autoflame product range i e combustion electrical and control The sale of Autoflame s systems and equipment referred to in this Manual assume that the dea...

Страница 4: ...Scanner 39 2 2 2 Self Check End View UV Scanner High Sensitivity 41 2 2 3 Self Check Side View UV Scanner High Sensitivity 43 2 2 4 Mk8 Series Side View UV Scanner 45 2 2 4 Standard European Side Vie...

Страница 5: ...encing Connection Diagram 73 5 1 2 DTI Connection Diagram 74 5 1 3 Hot Water Example 75 5 1 4 Single Multi Burner Examples 76 5 1 5 IBS Communications 77 5 2 Sequencing Options and Parameters 78 5 3 H...

Страница 6: ...tion 87 6 3 2 Independent on Fault 88 6 3 Multi Burner with Water Level Control 89 6 4 Multi Burner with EGA 89 6 4 1 Multi Burner with Single EGA 89 6 4 2 Multi Burner with individual EGAs 90 6 5 Mul...

Страница 7: ...0 to 2 5 0 2 to 0 1 MM80011 Digital 1034 415 15 1034 415 15 20 68 to 20 68 8 3 to 8 3 0 3 to 0 3 Analogue 115 50 1 8 750 300 11 30 0 to 15 0 12 0 to 6 0 0 44 to 0 22 MM80012 Digital 2068 831 30 2068...

Страница 8: ...1 Sensors Page 2 MM Application Possibilities Gas Pressure Sensor...

Страница 9: ...set upper limit Parameter 41 Gas pressure units Mini Mk8 MM If the Valve Proving System VPS facility is to be used then specific options parameters must be set Option Parameter Mini Mk8 MM 125 Fuel pr...

Страница 10: ...essure Sensor 3 valves Option parameter 125 126 127 or 128 if fuel 2 3 or 4 to 1 Option parameter 130 to 1 or 2 High low Pressure Limits using Autoflame Gas Pressure Sensor 3 valves Option parameter 1...

Страница 11: ...2 valves Option parameter 125 126 127 or 128 if fuel 2 3 or 4 to 1 Option parameter 130 to 0 High Low Pressure Limits using Autoflame Gas Pressure Sensor 2 valves Option parameter 125 126 127 or 128 i...

Страница 12: ...lot Option parameter 125 126 127 or 128 if fuel 2 3 or 4 to 1 Option parameter 130 to 4 or 5 High Low Pressure Limits using Autoflame Gas Pressure Sensor 3 valves single valve pilot Option parameter 1...

Страница 13: ...ve pilot Option parameter 125 126 127 or 128 if fuel 2 3 or 4 to 1 Option parameter 130 to 3 High Low Pressure Limits using Autoflame Gas Pressure Sensor 2 valves single valve pilot Option parameter 1...

Страница 14: ...1 Sensors Page 8 MM Application Possibilities External VPS Option parameter 125 126 127 or 128 if fuel 2 3 or 4 to 3 Note Please refer to page 3 for full list of VPS options parameters...

Страница 15: ...e Sensor 3 valves Option parameter 125 126 if fuel 2 to 1 Option parameter 128 to 1 Option parameter 130 to 1 or 2 High Low Pressure Limits using Autoflame Gas Pressure Sensor 3 valves Option paramete...

Страница 16: ...s Option parameter 125 126 if fuel 2 to 1 Option parameter 128 to 1 Option parameter 130 to 0 High Low Pressure Limits using Autoflame Gas Pressure Sensor 2 valves Option parameter 125 126 if fuel 2 t...

Страница 17: ...ion parameter 125 126 if fuel 2 to 1 Option parameter 128 to 1 Option parameter 130 to 4 or 5 High Low Pressure Limits using Autoflame Gas Pressure Sensor 3 valves single valve pilot Option parameter...

Страница 18: ...if fuel 2 to 1 Option parameter 128 to 1 Option parameter 130 to 3 High Low Pressure Limits using Autoflame Gas Pressure Sensor 2 valves single valve pilot Option parameter 125 126 if fuel 2 to 2 Opti...

Страница 19: ...e 3 for full list of VPS options parameters Note During VPS the input on terminal 82 should be on during the VPS air proving and gas proving phases and at all other VPS phases the input to terminal 82...

Страница 20: ...1 Sensors Page 14 MM Application Possibilities External VPS Option parameter 125 126 if fuel 2 to 3 Note Please refer to page 3 for full list of VPS options parameters...

Страница 21: ...t in litres per hour Pressure change 0 25 Example Valve proving time Inlet pressure 50mBar Pipe volume 5litres Max gas flow 100 000litres per hour 4 50 5 100 000 1000 1 14 Set option 132 15 seconds Se...

Страница 22: ...Page 16 MM Application Possibilities Figure 1 1 3 i Mk8 MM Gas Valve Proving Diagram Figure 1 1 3 i shows the sequence for the Mk8 MM gas valve proving and high low pressure limits using an Autoflame...

Страница 23: ...alves a pressure drop is seen when the valves close after the void to air and void to gas states In the VPS air proving phase after the valves close there is a 1 5 second delay before the pressure rea...

Страница 24: ...185OF Operating Temperature 25 to 85 OC 13 to 185 OF Media Temperature 25 to 125 OC 13 to 257 OF Operating Range 0 to 40 Bar 0 to 600 PSI Over Pressure Rating 80 Bar 1160 PSI Burst Pressure Rating 29...

Страница 25: ...s being used the following options parameters need to be set Option Parameter Mk8 MM 125 Fuel pressure sensor mode fuel 1 126 Fuel pressure sensor mode fuel 2 127 Fuel pressure sensor mode fuel 3 128...

Страница 26: ...1 36 to 1 36 0 54 to 0 54 0 02 to 0 02 Analogue 0 75 0 3 0 65 25 1 2 5 to 1 25 1 0 to 0 5 0 02 to 0 02 MM80013 Digital 137 55 2 137 55 2 2 74 to 2 74 1 1 to 1 1 0 04 to 0 04 Analogue 1 5 0 6 0 130 50...

Страница 27: ...1 Sensors Page 21 MM Application Possibilities Air Pressure Sensor...

Страница 28: ...r pressure error window 148 Air pressure sensor type 149 Air proving pressure threshold Parameter 43 Air pressure sensor units Mini Mk8 MM If the air pressure sensor is being used the following option...

Страница 29: ...ual channel and self check Note 1 Position 2 must be 0 25 wg 0 62mBar higher than position 1 2 Minimum pressure in normal run mode must be higher than position 2 3 Position 8 must be set equal to posi...

Страница 30: ...he Autoflame Air Pressure Sensor is supplied with a negative pressure port This can be removed and installed as shown below to measure a differential pressure This is only necessary where the air pres...

Страница 31: ...ng temp 25 C to 85 C 13OF to 185OF Media temp steam 25 C to 85 C 13OF to 185OF Part No Actual Range Over Pressure Burst Pressure MM10010 U 0 3 4 bar 0 50 PSI 8 bar 116 PSI 12 bar 174 PSI MM10008 U 0 2...

Страница 32: ...1 Sensors Page 26 MM Application Possibilities Steam Pressure Sensor...

Страница 33: ...ication Possibilities 1 5 Water Temperature Sensor Temperature Sensor MM Red T38 Blue T37 Range 0 400 C 0 752 F Cable Entry 2 core Screen BSP Thread Connection Stainless Steel Immersion Pocket Wire Co...

Страница 34: ...A B C D MM10006 100 U 211 42 8 32 185 75 7 31 120 4 72 100 4 MM10006 150 U 261 42 10 29 235 75 9 28 170 6 69 150 6 MM10006 200 U 311 42 12 26 285 75 11 25 220 8 86 200 8 MM10006 250 U 361 42 14 23 335...

Страница 35: ...m Power Consumption Powered by MM Mounting Any Orientation Outside Temperature Compensation Module OTC Module MM Black T27 Red T28 Sensor Mk8 MM Red 19 Blue 20 2 Core Screen Cable 2m length Drawing No...

Страница 36: ...1 Sensors Page 30 MM Application Possibilities Outside Temperature Sensor...

Страница 37: ...1 Sensors Page 31 MM Application Possibilities Outside Temperature Module...

Страница 38: ...1 Sensors Page 32 MM Application Possibilities Outside Temperature Module Wiring...

Страница 39: ...e temperature sensor are required When using the outside temperature module with a sequencing DTI loop the module is wired to this comms loop Outside temperature compensation should be enabled on all...

Страница 40: ...On the Mk8 MM and Mini Mk8 MM the night setback function does not require outside temperature compensation to be enabled For the Mk8 MM an input is required on terminal 93 to activate the night setba...

Страница 41: ...isplay screen lockout reset button is pressed for 2 seconds Prolonged lockout reset is set if either the mains lockout reset input or display screen lockout reset input is set for 10 or more seconds N...

Страница 42: ...2 Flame Safeguard Page 36 MM Application Possibilities 2 1 1 Interrupted Pilot Gas...

Страница 43: ...2 Flame Safeguard Page 37 MM Application Possibilities 2 1 2 Interrupted Pilot Oil...

Страница 44: ...2 Flame Safeguard Page 38 MM Application Possibilities 2 1 3 Intermittent Pilot Gas with Post VPS...

Страница 45: ...ternal 15V DC supply Mounting Any orientation so that photo tube faces flame Note Power to the IR scanner is terminated when removed from the magnetic ring socket IR Scanner Mk8 MM and Mini Mk8 MM Yel...

Страница 46: ...2 Flame Safeguard Page 40 MM Application Possibilities IR End View Scanner...

Страница 47: ...e 50 C 122 F IP 54 NEMA 5 Power Consumption Max 0 5W Housing Aluminium Mounting Any orientation UV Scanner MM Red T51 Blue T50 Yellow T21 Green T22 Connect screen at one end only Perspex window Gasket...

Страница 48: ...2 Flame Safeguard Page 42 MM Application Possibilities Self Check End View UV Scanner High Sensitivity...

Страница 49: ...Maximum operating temperature 50 C 122 F IP 54 Power Consumption Max 0 5W Housing Lid Aluminium UV Cell High Intensity UV Scanner MM Red T51 Blue T50 Yellow T21 Green T22 Connect screen at one end onl...

Страница 50: ...2 Flame Safeguard Page 44 MM Application Possibilities Self Check Side View UV Scanner High Sensitivity...

Страница 51: ...nner Part Number MM80004 Maximum Operating Temperature 60 C 140 F IP 54 NEMA 5 Housing Aluminium Power Consumption Powered by MM Mounting Any orientation so that photo tube faces the flame UV Scanner...

Страница 52: ...Power Consumption Powered by MM Mounting Any orientation so that photo tube faces the flame UV Scanner MM Red T51 Blue T50 Connect screen at one end only Perspex window Gasket UV cell PG11 to conduit...

Страница 53: ...2 Flame Safeguard Page 47 MM Application Possibilities Standard European Side Viewing UV Scanner...

Страница 54: ...temperature 60 C 140 F IP 54 NEMA 5 Housing Aluminium Power Consumption Powered by MM Mounting Any orientation so that photo tube faces flame UV Scanner MM Red T51 Blue T50 Connect screen at one end...

Страница 55: ...2 Flame Safeguard Page 49 MM Application Possibilities Standard North American End Viewing UV Scanner...

Страница 56: ...temperature 60 C 140 F IP 54 NEMA 5 Housing Aluminium Power Consumption Powered by MM Mounting Any orientation so that photo tube faces flame UV Scanner MM Red T51 Blue T50 Connect screen at one end o...

Страница 57: ...ation Possibilities 2 2 8 Swivel Mount Assembly Dimensions mm inches Part A B C D E F Swivel mount 1 UVM60003 100 3 94 50 1 97 85 3 35 104 4 09 36 1 42 33 1 30 Swivel mount 0 5 UVM60004 100 3 94 50 1...

Страница 58: ...self check UV scanners are high sensitivity as standard High Sensitivity If the distance from the UV scanner to the flame exceeds 500mm 20 inches a high sensitivity UV scanner type is recommended MM 6...

Страница 59: ...Installation The distance between the UV scanner and the flame depends on the shape width of the flame Figure 2 3 1 i shows the variation of the maximum allowed distance with the shape of the flame f...

Страница 60: ...ion 300 volts would be applied for a 240ms period after the second safety time This is providing the UV signal is above the UV setpoint which is set at 25 counts The setpoint cannot be adjusted If the...

Страница 61: ...me signal even if the other scanner detects the flame This is the same for simulated flame only one scanner must see a flame when there should not be for the MM to lockout IR or UV Either flame scanne...

Страница 62: ...t follow the inverse of Terminal 85 the following lockout will occur Terminal 86 inverse Note High purge interlock parameter 92 will not operate with flame switch Within the MM there is a latency of 2...

Страница 63: ...o pre purge If the burner goes above its setpoint and turns off on high temperature pressure then the next time the burner starts up it will go through the VPS operation and then light off without a p...

Страница 64: ...temperature pressure goes above this value the pilot will turn off as well In the situation when the burner switches back to pilot flame the burner will open the pilot valves and after the second safe...

Страница 65: ...tion Off Pilot Valves On Stat Circuit Made Firing Stat Circuit Made Move to low fire Continuous Pilot T53 Circuit Made Post purge Continuous Pilot timer expired Main Valves Off T53 Circuit Made Yes No...

Страница 66: ...t Made Ignition Off Pilot Valves On Stat Circuit Made Firing Stat Circuit Made Move to low fire T53 Circuit Made Post purge Continuous Pilot timer expired Main Valves Off T53 Circuit Made Yes No Yes N...

Страница 67: ...r from being too fuel rich as the firing rate increases As the fuel servomotor closes there is a natural lag in the VSD feedback as it slows down the fuel servomotor still waits for the VSD but does n...

Страница 68: ...ingle Servomotor with VSD The commissioning procedure remains the same however only the channel 1 gas servomotor position and channel 4 VSD position needs be entered for each point In Run mode the sys...

Страница 69: ...8 and 49 Please see wiring diagram below The digital fan adapter must be purchased according to the specification of the digital fan The device must be programmed with the correct speed settings for t...

Страница 70: ...with channel 1 servomotor only to control the fuel flow This configuration can also be used for pre mix burners where the fuel to air volume ratio is not varied In these applications channel 1 is sued...

Страница 71: ...el on Mk8 MM IO Module Analogue Input Output 1 1 2 2 3 3 4 4 7 5 2 9 2 External 4 20mA Servomotor Requirements In order for the MM to control the servomotor channels via external 4 20mA servomotors th...

Страница 72: ...2 Flame Safeguard Page 66 MM Application Possibilities 2 9 3 Wiring...

Страница 73: ...hod 87 Channel 2 Servo Control Method 88 Channel 3 Servo Control Method 89 Channel 4 Servo Control Method Expansion Option Mk8 MM 81 Draught Servo Control Method The IO module must be configured for I...

Страница 74: ...rmal modulation On the Mini Mk8 MM the transfer between hand and auto mode is always bumpless If the low flame hold input is activated on terminal 81 see option parameter 155 then this will take prior...

Страница 75: ...ve actions of the PID control Each contributes to how the 3 term PID control modulates the burner and each operates as outlined below Most applications can be controlled adequately using just the Prop...

Страница 76: ...by is specified in parameter 106 the default is 10 of the difference between the measured and setpoint temperature or pressure values and the time period this amount is added every n seconds n is spe...

Страница 77: ...margin above and below the required set point in which no derivative action occurs is set in option 38 and the response sensitivity as a percentage of firing rate increase or decrease is defined in o...

Страница 78: ...e variations of the IBS software that can be selected via the options parameters procedure hot water boilers and steam boilers A maximum of ten MM EGA universal I O modules may be interconnected by a...

Страница 79: ...5 Intelligent Boiler Sequencing Page 73 MM Application Possibilities 5 1 Sequencing Schematics 5 1 1 Sequencing Connection Diagram...

Страница 80: ...5 Intelligent Boiler Sequencing Page 74 MM Application Possibilities 5 1 2 DTI Connection Diagram...

Страница 81: ...5 Intelligent Boiler Sequencing Page 75 MM Application Possibilities 5 1 3 Hot Water Example...

Страница 82: ...ent Boiler Sequencing Page 76 MM Application Possibilities 5 1 4 Single Multi Burner Examples Boiler 1 Boiler 2 Boiler 3 1 2 3 1 2 3 4 5 6 1 2 3 4 Note Multi burner operation is not available on the M...

Страница 83: ...5 Intelligent Boiler Sequencing Page 77 MM Application Possibilities 5 1 5 IBS Communications...

Страница 84: ...options parameters and expansion options Mk8 MM only for the Mk8 MM and Mini Mk8 MM Option Description 16 Sequencing and DTI enable 33 MM identification 35 Sequence scan time 40 Warming facility for l...

Страница 85: ...must be set to 0 on all the MMs in the sequencing loop If warming is required for lag hot water boilers then hot water sequencing can function like steam sequencing by setting option 62 In a sequence...

Страница 86: ...o be on This will stop the hot water circulating in the system from passing through the boiler and the heat being wasted It is possible to use Terminal 78 which is a switched neutral to control the tw...

Страница 87: ...iler will maintain a pressure offset from the required setpoint in order to ensure that when required this gets up to pressure quickly 5 4 2 Implementing Steam Sequencing When the IBS software control...

Страница 88: ...equencing burner on time This is the time in minutes for how long the boiler will be in low flame hold for the boiler to heat up to its standby setpoint when in Warming mode Options 42 sets the standb...

Страница 89: ...ed out The MM has been disabled remotely via the DTI or a BMS with option 16 set to 3 Option 16 on the MM is not set to 1 or 3 The MM is in an error burner lockout or expansion alarm state The MM has...

Страница 90: ...ents this includes Air damper Air fan blower and its motor Induced draught fan blower and its motor Draught control damper valve and its control servomotor Draught pressure sensor Air pressure sensor...

Страница 91: ...ies 6 2 Configuring Multi Burner Operation 6 2 1 Wiring Terminals 23 and 24 on the Mk8 MM are used for Multi Burner communications a screen must be connected at one end The connection must be made as...

Страница 92: ...required in option 33 Option 51 must be set to the highest multi burner ID in the multi burner configuration as set in option 44 It is the commissioning engineer s responsibility to ensure that no adv...

Страница 93: ...all MMs will proceed to start up and fire simultaneously A load detector does not need to be wired to the slave MMs only the master MM The load detector input on the slave MMs can be left open circui...

Страница 94: ...tly When the Master MM is powered back on the error is reset or the multi burner communications is recovered all burners will then start up in sync and resume firing in multi burner operation When a S...

Страница 95: ...aust gases from the common stack The EGA sampling probe is mounted in the stack and the EGA communicates with the Master MM through the data link on terminals 25 and 26 The EGA data is then transferre...

Страница 96: ...same point and at similar angular degrees to ensure that all burners are firing with good emissions throughout the firing range Alternatively the MMs can be commissioned independently with option 12 s...

Страница 97: ...external modulation a line voltage on terminal 88 switches the MM from internal PID to external modulation Switched modulation cannot be used with sequencing The following occurs when there is a lock...

Страница 98: ...on Possibilities 18 December 2019 AUTOFLAME ENGINEERING LTD Unit 1 2 Concorde Business Centre Airport Industrial Estate Wireless Road Biggin Hill Kent TN16 3YN United Kingdom Tel 44 0 1959 578 820 Ema...

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