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Lennox 70LENX1000, Руководство пользователя

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Lennox 70LENX1000 Скачать руководство пользователя страница 32

Heat exchanger gas unit –Main board operation

Smart Energy Company 

www.systemapolska.pl

Example on E Baltic C box

Model C

Nominal heat input – 50 kW

Min. heat input 10 kW

Signs

00 – 10 kW

99 – 50 kW

Содержание 70LENX1000

Страница 1: ...Heat exchanger gas units service training Federico Cortelazzo Dariusz Przygocki Barbara Kowalczyk 1st 3rd March 2022 Smart Energy Company www systemapolska pl ...

Страница 2: ... panel operating tutorial 4 Improvements retrofit 5 GHEU s operating cycles 6 Commissioning Pre commissioning Start up Hi Lo power flow procedure 7 Gas valve adjustment 8 Replacement gas valves electrodes 9 Alarms tutorial 10 Maintenance plan 11 Communication between Climatic HEGU Smart Energy Company www systemapolska pl ...

Страница 3: ...m leaders Boussad ERIC Trainner Darek Federico Topics Preparation for commissioning Start up Hi Lo procedurę Control panel operating Ignition test Alarms Replacement of electrodes valve Burner disassembing assembling Smart Energy Company www systemapolska pl ...

Страница 4: ...X1003 70LENX1004 70LENX1005 70LENX1006 LGL France Goods E BALTIC C BOX E BALTIC D BOX E BALTIC E BOX E BALTIC E BOX E BALTIC F BOX E BALTIC G BOX E BATLIC H BOX Cat No Longvic 4380816E 4380817F 4380818H 4380822M 4380819J 4380820K 4380821L Cat No Burgos 5006181 5006182 5006183 5006210 X X X Nominal heat input 50 kW 70 kW 90 kW 110 kW 130 kW 170 kW 230 kW Airflow min max 4 200 6 900 7 100 11 000 13 ...

Страница 5: ...it own serial number Model EOLO LXC 50 EOLO LXD 70 EOLO LXE 90 Cat No S 70LENX0120 70LENX0121 70LENX0122 LGL France Goods E BALTIC C BOX E BALTIC D BOX E BALTIC E BOX Cat No Longvic 61298512 61299199 61299200 Nominal heat input 50 kW 70 kW 90 kW Airflow min max 4 200 6 900 7 100 11 000 13 500 16 000 ...

Страница 6: ...LO LXC 50 E Baltic C box 2 Serial no L21B11084 3 CE sign Certificate name 4 Type of gas 5 Nominal heat input output 6 Country destination France 7 Language Frensh or Spanish or English or Smart Energy Company www systemapolska pl ...

Страница 7: ...lska pl 1 Plate heat exchanger 2 Mounting plate 3 Control box 4 Burner unit 5 6 Sensor temp cover 7 8 9 10 Temp sensors 11 Insulation gasket 12 Pneumatic elbow 13 Elbow 14 Transformer 15 Internal combustion chamber 16 Measure point of pressostat 17 18 19 20 exhaust pipes set ...

Страница 8: ...ollers with opportunity to connect with Climatic Control panel connection with necessary components 4 Burner unit gas combustion in phe 5 10 Temp sensors with covers measures temp on the Surface of phe 11 Insulation gasket 12 Pneumatic elbow 13 Elbow 14 Transformer voltage convertion from 400 V to 230V ERT Kr on wring diagram 15 Internal combustion chamber deacreasing Surface of phe 16 Pipe 17 18 ...

Страница 9: ...Burner units model E Baltic C D E box Smart Energy Company www systemapolska pl ...

Страница 10: ...Burner units model E Baltic F G H box Smart Energy Company www systemapolska pl ...

Страница 11: ...rgy Company www systemapolska pl 1 Burner flange 2 3 Insulation plate 4 Burner head 5 Electrodes set 7 Gas blower 8 Gas air mixer 9 Gas valve 10 Flexible gas pipe 12 Hi voltage transformer 15 Gas blower control cable 18 Gas blower wiring supply ...

Страница 12: ... air mixture 5 Electrodes set ignition 7 Gas blower supply gas and air mixture 8 Gas air mixer mix gas air 9 Gas valve control gas valume in burner 10 Flexible gas pipe connection with main gas supply 12 Hi voltage transformer provide ingition 15 Gas blower control cable management modulation of burner rotation speed 8 Gas blower wiring supply ...

Страница 13: ...H box Smart Energy Company www systemapolska pl 1 Burner flange 2 3 Insulation 4 Burner head 5 Electrodes set 6 Gas blower 7 Gas air mixer 9 Gas valve 11 19 Gas pressure switch 13 Flexible gas pipe 15 Hi voltage transformer ...

Страница 14: ...w systemapolska pl 4 Matherboard main electronic board 5 Burner controller GENIUS M82 Brahma management burner control operating 6 Air pressure switch 7 Safety thermostat Klikson overheating 12 Communication plate communicate components with motherboard and Climatic ...

Страница 15: ...rd 34 36 Red lamp Green lamp Orange lamp 37 Air flow pressure swich not use by Lennox 38 4 pin adapter valid for all units from serial no L21G11320 41 Reset buton 43 Communication plate 44 Programming button Smart Energy Company www systemapolska pl ...

Страница 16: ...mpany www systemapolska pl 1 Instruction Operation Manual English French Spanish Polish 2 Spare parts list 3 Leaflet 4 PPT presentation 5 Commissioning diagram tutorial 6 Hi Lo procedure diagram tutorial IOM in English French Spanish Polish ...

Страница 17: ...alve or reducer Smart Energy Company www systemapolska pl PLS ADD THE WHOLE PIPES OF GAS Model EOLO LXC EOLO LXD EOLO LXE EOLO LXE EOLO LXF EOLO LXG EOLO LXH Capacity in kW 50 70 90 110 130 170 230 Volume in m3 0 02 0 031 0 039 0 048 0 056 0 065 0 095 ...

Страница 18: ...HEGU improvements retrofit Smart Energy Company www systemapolska pl 4 pin connection for 4 pobes of heat exchanger from serial no L21G11320 ...

Страница 19: ...HEGU Improvements retrofit Smart Energy Company www systemapolska pl Electrodes from double to single 2 pcs For C D E E From serial no L21G11320 ...

Страница 20: ...HEGU improvements retrofit Smart Energy Company www systemapolska pl New burner Controller Genious 821 TW30 is replecement by Brahma 500015521 32505 from serial no L22B11503 ...

Страница 21: ...HEGU improvements retrofit Smart Energy Company www systemapolska pl Place of programming buton reset buton form serial no L22B11505 ...

Страница 22: ...EGU Retrofit Smart Energy Company www systemapolska pl 1 New burner controller Brahma instead of Genius 2 New type of electrodes 2 x single instead of one double use repair kits 3 New shape of electrodes ...

Страница 23: ...Heat exchanger gas unit SIGNAL Smart Energy Company www systemapolska pl Signals on the dispaly Main Control board SCP674V130B1 The same communication board for each models ...

Страница 24: ...Heat exchanger gas unit Phases Smart Energy Company www systemapolska pl Reset burner No command No command Level of burner to heat to operation Post ventilation mode ...

Страница 25: ...Heat exchanger gas unit Mainboard operation Smart Energy Company www systemapolska pl Test mode Testing fase Combustion chamber Waiting time pre ventillation ...

Страница 26: ...hanger gas unit Main board operation Smart Energy Company www systemapolska pl Pasword service mode Max min Time of to enter burner operation setting operation Y2 YC Yt according to at Yc level Yc Yt parameters ...

Страница 27: ...Heat exchanger gas unit Main board operation Smart Energy Company www systemapolska pl BOOST burner starting power burner min power burner max power not used in Lennox devices ...

Страница 28: ...ngs Smart Energy Company www systemapolska pl Burner operation parameter MOI point 4 6 page 30 31 PA parameter introducting changes 33 code for manual mode Modifiable parameters Y2 Burner modulation power in fom 0 99 default 20 ...

Страница 29: ...t Energy Company www systemapolska pl Non modifiable burner parameters read only rL min burner fan speed value ro offest of rL during standard operation rH max burner fan speed value Y2 boost level Y9 gas blower type HH release firmware ...

Страница 30: ... After realeasing button the value 00 appears 3 Press button again to enter code 33 manual operations 4 Wait 3 s without doing nothing 5 You are in service mode during 4 minutes 6 Press and hold button until display shows Y2 and release the button 7 Press button again to modify Y2 from 0 99 button ...

Страница 31: ...Heat exchanger gas unit Main board operation ...

Страница 32: ...Heat exchanger gas unit Main board operation Smart Energy Company www systemapolska pl Example on E Baltic C box Model C Nominal heat input 50 kW Min heat input 10 kW Signs 00 10 kW 99 50 kW ...

Страница 33: ...peration Smart Energy Company www systemapolska pl 00 kW 99 kW EOLO LXC 50 C BOX 10 50 EOLO LXD 70 D BOX 14 70 EOLO LXE 90 E BOX 18 90 EOLO LXE 110 E BOX 22 110 EOLO LXF 130 F BOX 26 130 EOLO LXG 170 G BOX 34 170 EOLO LXH 230 H BOX 46 230 ...

Страница 34: ... operating Smart Energy Company www systemapolska pl 1 External control panel for Receiving information Resseting alarms Managing Control HEGU 2 The name of alarms are not the same as alarms on Motherboard s display ...

Страница 35: ...Control box wiring diagram Smart Energy Company www systemapolska pl Wiring diagram page 23 MOI English Matherboard SCP674V130B1 Communication plate SCP674V202MB ...

Страница 36: ... E5 E6 error J6B Kr resistance kit relay power supply J7B a min gas pressure switch option J7B b Air pressure switch J7C c Safety thermostat connection J7C d Max gas pressure switch option KEY Programming buton connector iFS Copying parameters port CN1 CN2 SCP674V202MB slave board connector ...

Страница 37: ...itor connection J8D Gas valve connection J8C Contacts in bridge not used J8A Gas blower power connection J9A2 signal lamps F3 F4 burner protection F3 F4 3 15A J8F Gas blower modulating line Hall sensor J7B Alarm inputs E2 temporary alarms J7C Alarm inputs E3 permanent alarms Xc Burner controller Genius M82 ...

Страница 38: ...ystemapolska pl J11 Modbus connection iFS programming interface J3 P3 Inlet air temp probe P4 Airflow temp probe CN1 CN2 connector to main booard J1 reset configuration switches J9 connection to ext display J2 heat exchanger temp sensor J5 manual burner start ...

Страница 39: ...Smart Energy Company www systemapolska pl J7B Min gas pressure switch air pressure switch J7C Max gas pressure switch safty thermostat J8F gas blower control J9A2 signal lamps J8A gas blower J8C Not used J8D gas valve J8B Ignitor ...

Страница 40: ...ntrol box wiring diagram Smart Energy Company www systemapolska pl J1A General power supply J9B Machine reset J1B J1B2 protective conductor ETR Kr resistance kit relay power supply option low temp outside ...

Страница 41: ...ontrol box wiring diagram Smart Energy Company www systemapolska pl P4 1 to P4 4 Outlet air temp sensor Pp use for programming main board P1 heat exchanger temp sensor GO Manual burner operating control ...

Страница 42: ...nication or manualy close connector J5 contacts 1 2 Gas heater will start to work only when the main fans are running Otherwise the module will display an E3 error In correct conditions gas unit will perform a startup cycle First symbol to appear on display is the initial phase 5 10 sec The next testing fase starts after 20 30 sec ...

Страница 43: ...heat exchanger unit operating cycles After testing fase burner goes to pre purging fase 30 sec Orange lamp ON The next step open gas valve and apply high voltage to the electrodes Green lamp ON Spark starts ...

Страница 44: ...essful ignition burner continues After a successful ignition burner continues boost phase for 3 minutes i e work with starting power then after approx 3 minutes the burner switches to normal operation and displays the percentage power level between 0 99 ...

Страница 45: ...Gas heat exchanger unit operating cycles if the burner did not start it makes two more attempts to start After third unsuccessful attempt the burner locks Red lamp ON Error E4 on the display ...

Страница 46: ...me plate Check with the pressure intake IN on the gas valve that pressure entering the valve corresponds to that required for the type of gas being used Purge the gas pipe Check tightness of gas system Check Correctness of electrical connection Voltage value Check that efficient earthing connections have been completed carried out as specified by current safety regulations Tabele 5 1 page 44 ...

Страница 47: ... action 1 Check the filter 3 2 Open shut off main gas valve 1 3 Pre purge gas pipe from air 4 Check tightness by tester 5 Turn on the main electrical power swich 1 shut off valve 2 checking point 3 filter 4manometer 5 gas regulator 6 manometer 13 checking point ...

Страница 48: ...Heat exchanger gas unit Commissioning Smart Energy Company www systemapolska pl View of heat exchanger gas unit E Baltic C box ...

Страница 49: ...Smart Energy Company www systemapolska pl Commissioning procedure start up ...

Страница 50: ...Smart Energy Company www systemapolska pl Preparation 1 Check type of module 2 Find the table in IOM page 61 3 Prepare combustion analyser 4 Use HEX 4 or Torx 25 for making adjustment Make pressure adjustment just after starting the burner ...

Страница 51: ...HEGU procedure to put in Lo Hi power Smart Energy Company www systemapolska pl Necessary tools for regulation Hex 4 or T25 T40 T40 T25 H 4 ...

Страница 52: ...to has gas valve 2 Use off set regulator or gas air mixer for E E F for Lo power flow 3 Use internal valve screw 4 Gas valve is set to manual mode for 6 minutes 5 Enter code 61 and adjust gas valve to max power flow 6 Enter code 51 and make adjustment gas valve for min power flow Hi T40 Lo T25 ...

Страница 53: ...re to put in Lo Hi power Smart Energy Company www systemapolska pl The main codes necessary for using during procedure Parameter manual mode Time parameter eg 5 10 minutes Setting capacity max Setting capaicty min ...

Страница 54: ...rocedure to put in Lo Hi power Smart Energy Company www systemapolska pl Model C D Model E E F Model G H 1 Model C D VK4205VE5002 2 Model E E F VK 4415V1002B 3 Model G H VR415VE50924 Lo Hi Gas air mixer ...

Страница 55: ... Hi power Smart Energy Company www systemapolska pl The targeted parameters G20 CO2 8 7 λ 1 35 Parameters on combustion analyser CO 100 ppm CO2 7 8 8 9 NOx 30 ppm Ts fume temp ɳ efficiency λ 1 35 1 48 CO ppm CO2 NOx ppm Ts C ɳ λ ...

Страница 56: ...HEGU procedure to put in Hi Lo power Smart Energy Company www systemapolska pl ...

Страница 57: ...HEGU procedure to put in Lo Hi power Smart Energy Company www systemapolska pl The procedure should be carried out after the burner has just started ...

Страница 58: ...Supply pressure in countries Smart Energy Company www systemapolska pl Tabele 5 1 page 44 ...

Страница 59: ...polska pl Replacement venturi if it is necessary mainly Poland 1 Always make Hi Lo procedure after replacement spare parts change fuel 2 Check if is necessary to replace venturi It is valid for Poland 3 Make calibration if the gas valve is out of control ...

Страница 60: ...s T C 170 43 112 28 137 34 145 39 132 39 CO2 8 7 8 6 8 5 8 6 8 6 8 7 8 7 8 9 8 7 8 6 NOx ppm 37 20 29 32 29 26 34 22 30 21 G 25 Exhoust gas T C 165 39 110 28 135 34 140 39 133 38 CO2 8 7 8 5 8 6 8 5 8 5 8 6 8 7 8 7 8 7 8 5 NOx ppm 37 20 29 32 29 26 34 22 30 21 G31 Exhoust T C 175 42 111 28 140 35 145 39 132 39 CO2 10 3 10 4 10 3 10 3 10 2 10 4 10 3 10 4 10 3 10 2 NOx ppm 40 28 32 31 32 29 37 25 33...

Страница 61: ...Gas valve calibration Smart Energy Company www systemapolska pl Based on E Baltic C box IOM page 62 ...

Страница 62: ...stemapolska pl Module C G20 20 mbar min max CO2 7 8 8 9 1 Full open by turning right to the end 2 Set by turning 3 75 turns to the left 3 Target CO2 8 7 Lo 1 Full open by turning right to the end 2 Set by turning 4 turns to the left 3 Target CO2 8 6 Hi T40 T25 ...

Страница 63: ...Heat exchanger gas unit Maintenance Smart Energy Company www systemapolska pl Replacement gas valve tutorial Model C D model E E F model G H T40 T25 T40 T25 T40 T15 ...

Страница 64: ...t Energy Company www systemapolska pl Non modifiable burner parameters read only rL min burner fan speed value ro offest of rL during standard operation rH max burner fan speed value Y2 boost level Y9 gas blower type HH release firmware ...

Страница 65: ... After realeasing button the value 00 appears 3 Press button again to enter code 33 manual operations 4 Wait 3 s without doing nothing 5 You are in service mode during 4 minutes 6 Press and hold button until display shows Y2 and release the button 7 Press button again to modify Y2 from 0 99 button ...

Страница 66: ...Heat exchanger gas unit Maintenance Smart Energy Company www systemapolska pl Replacement electrodes standard procedure tutorial ...

Страница 67: ...Burner electrode change in module C D E E Smart Energy Company www systemapolska pl From serial no L21G11320 ...

Страница 68: ...Heat exchanger gas unit Maintenance Smart Energy Company www systemapolska pl 3 repair kits burner with index no 70LXPAL0023 0025 C D E ...

Страница 69: ...Heat exchanger gas unit Maintenance Smart Energy Company www systemapolska pl Remove burner unit from heat exchanger gas unit ...

Страница 70: ...Heat exchanger gas unit Maintenance Smart Energy Company www systemapolska pl Remove the insulation gasket Unscrew 4 nuts ...

Страница 71: ...Heat exchanger gas unit Maintenance Smart Energy Company www systemapolska pl Remove burner plate install the repair kits burner ...

Страница 72: ...Heat exchanger gas unit Maintenance Smart Energy Company www systemapolska pl Screw 4 nuts Install the insulation gasket ...

Страница 73: ...Heat exchanger gas unit Maintenance Smart Energy Company www systemapolska pl Install the burner unit with new electrode set to heat exchanger gas unit ...

Страница 74: ...Heat exchanger gas unit Troubleshooting Smart Energy Company www systemapolska pl ...

Страница 75: ...ation speed Air switch E3 A18 Overheating of he Reset burner probe E4 A17 Burner is blocked 1 Valve regulation 2 Replace electrodes Valve electrodes E5 E6 Lack of connection control wiring 1 Connect 2 Turn off turn on units Blower blower wiring supply E8 A41 HE is overheated Deacrease level of burner operating and wait Heat exchanger E9 Burner is blocked for some period Make double reset E4 ...

Страница 76: ...anger gas unit ALARM Smart Energy Company www systemapolska pl Alarm solutions Alarm Main electronic board is disconnected with communication board Solution Check that the communication board is fitted correctly ...

Страница 77: ...nit ALARM Smart Energy Company www systemapolska pl Alarms solutions Alarm General contact J7B is opened min gas pressure switch Pg Air pressure switch Solution Check the required gas pressure check circuit of J7B contact ...

Страница 78: ...rgy Company www systemapolska pl Alarms solutions Alarm Happend or in progres Contact J7C is open Max gas pressure switch is open or overheat thermostat is opened Klikson Solution Check gas pressure Pushs reset on overheat thermostat Klikson ...

Страница 79: ...Heat exchanger gas unit ALARM Smart Energy Company www systemapolska pl Alarms solutions Alarm Burner is lockouted The red light is on Solution Pushs reset buttom during 3 s ...

Страница 80: ...phase and neutral polarity Lack of gas in the burner Check the gas suply line Wrong type of gas 1 Check if the type of gas complies with the gas on name plate 2 If not adjust the unit to the proper one by regulation valve Hi Lo procedurę Wrong gas pressure 1 Check the pressure with the valve shown on name plate 2 Performe gas valve adjustment MOI 60 66 procedure Hi Lo ...

Страница 81: ...ing in MOI page 57 2 Replace them with original spare parts Note Use the same type of elctrodes for box F G H and for C D E E with serial no higher than L21G11320 For modules C D E E with lower serial no use repair kit burner 3 Replace the ground electrode conector wire yellow green with the ignition electrode connector red wire Ignitor broken If it is spark issue and or replace with the original ...

Страница 82: ...oller corect operation and or replace it Gas valve does not work 1 Check the way of operation the gas supply on the valve replace with the orginal one if it is necessary 2 Main board faulty replace with original spare parts 3 Check the operation of gas valve coils and replace with original one 4 Check the operation of control unit replace withoriginal one if necessary ...

Страница 83: ...phase and neutral polarity Lack of gas in the burner Check the gas suply line Wrong type of gas 1 Check if the type of gas complies with the gas on name plate 2 If not adjust the unit to the proper one by regulation valve Hi Lo procedurę Wrong gas pressure 1 Check the pressure with the valve shown on name plate 2 Performe gas valve adjustment MOI 60 66 procedure Hi Lo ...

Страница 84: ...as unit ALARM Smart Energy Company www systemapolska pl Alarms solutions Alarm To low min speed of gas blower than burner switchs off Solution Check connection of gas blower control Check parameter Y9 on the mainboard ...

Страница 85: ...g connection of controling gas blower Check wire plug conectors J8F Gas blower control cable dameged Replace with original spare part if necessary Gas blower defectives Motherboard defective Wrong parameters Y9 on motherboard Check and or set Y9 parameter Box D E E F G Y9 1 Box C Y9 2 Box H Y9 3 ...

Страница 86: ...s unit ALARM Smart Energy Company www systemapolska pl Alarms solutions Alarm Error of high speed of gas blower than burner switchs off Solution Check connection of gas blower control Check parameter Y9 on the mainboard ...

Страница 87: ...g connection of controling gas blower Check wire plug conectors J8F Gas blower control cable dameged Replace with original spare part if necessary Gas blower defectives Motherboard defective Wrong parameters Y9 on motherboard Check and or set Y9 parameter Box D E E F G Y9 1 Box C Y9 2 Box H Y9 3 ...

Страница 88: ...Heat exchanger gas unit ALARM Smart Energy Company www systemapolska pl Alarms solutions Alarm Start up test failed burner locks out Solution Remove restore power to the board ...

Страница 89: ...nit ALARM Smart Energy Company www systemapolska pl Alarms solutions Alarm To high temperature of heat exchanger surface probe P1 PT1000 Solution Wait for decreasing temperature using fans in operating Change sensor damage ...

Страница 90: ...Heat exchanger gas unit ALARM Smart Energy Company www systemapolska pl Alarms solutions Alarm Red green lamps is lighting at the same time Internal error Solution Closes RT contact ...

Страница 91: ...y www systemapolska pl Alarms solutions Alarm Serious alarm damaged database Solution Contacts the service center Checks the value rL rH Y9 After introducing the new parameters provided by producer turns off the power supply of the board at least 10 s ...

Страница 92: ... exchanger gas unit ALARM Smart Energy Company www systemapolska pl Alarms solutions Alarm Memory fault EEPROM Solution Switch off power supply for 10s Restore software of main board and communication board ...

Страница 93: ...k the gas pressure supply at the gas valve x 3 Check flue exhaust air intake grill x 4 Check the Venturi pipe clean it if necessary x 5 Check exchanger clean it if necessary X 6 Check burner head clean it if necessary x 7 Check electrodes clean it if necessary x 8 Check and clean condensate drain x 9 Check operation of flame x 10 Check the safety thermostat x ...

Страница 94: ...d outside the device behind the main gas valve 2 Check the gas pressure supply at the gas valve Measure the gas pressure with a pressure gauge The measuring point is at the inlet to the gas valve 3 Check flue exhaust air intake grill Visually inspect where possible Check the status of the ducts Remove dust and any obstruction on the air intake ...

Страница 95: ... dirt at the mouth of the Venturi pipe with a brush Be careful to not let it fall inside the piece 6 Check electrodes clean it Use fine sandpaper to clean the electrode core 5 Check burner head clean it if necessary Remove any dirt from perforated surface with a brush Check the condition of the head ...

Страница 96: ...er power supply use isolated tool Carefully remove the fast on from the safety thermostat the alarm E3 must appear on the display Then push RESET 3sec for to cancel the alarm 8 Check operation of flame and ionisation controling When the burner is working close the gas valve and verify that the burner is stopped After 3th spark start alarm display E4 Reopen the gas valve reset the alarm and wait fo...

Страница 97: ...Smart Energy Company www systemapolska pl THANK YOU FOR ATTENTION ...

Страница 98: ...Control box wiring diagram Smart Energy Company www systemapolska pl J1A General power supply J9B Machine reset J1B J1B2 protective conductor ETR Kr resistance kit relay power supply ...

Страница 99: ...ontrol box wiring diagram Smart Energy Company www systemapolska pl P4 1 to P4 4 Outlet air temp sensor Pp use for programming main board P1 heat exchanger temp sensor GO Manual burner operating control ...

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