Lodam LMC 320 User Manual Download

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LMC 320

Lodam Heat Pump Controller

User Manual

Ver

. 1.0 - 11.10.10

Heat Pump

Controller

Summary of Contents for LMC 320

Page 1: ...LMC 320 Lodam Heat Pump Controller User Manual Ver 1 0 11 10 10 Heat Pump Controller ...

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Page 3: ...installer section 15 Set control mode for the installation 17 Setting the defrost function 17 Enable use of a solar panel 18 6 Functions of the LMC320 20 Seasonal mode summer winter operation 20 Ambient room temperature compensation heating setpoint control 20 Heating control Min comp 21 Heating control Ambient 21 Heating control Room 21 Heating control Amb room 21 Heating control On Off room temp...

Page 4: ...ting menu 32 Installer menu 32 Installer Heat pump settings 33 Installer Hot water settings 34 Installer Heating settings 36 Installer Heating controller menu 37 Installer Ambient Room temperature compensation menu 38 Installer Defrost settings 40 Installer Advanced defrost settings menu 41 Installer Solar panel settings 42 Installer Service menu 44 Installer Date menu 44 Installer Runtime counter...

Page 5: ...roller 53 12 Drawings 57 LMC300 57 LUP200 58 Panel cutout 58 13 Standards 59 14 Alarm system and trouble shooting 60 Alarm list 61 15 Network 63 16 Firmware update 63 17 Accessories 63 18 Ambient compensation curves 64 19 NTC temperature resistance table 65 20 Index 66 21 Notes 67 ...

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Page 7: ...ch waste must be collected and disposed of separately 2 The public or private waste collection systems defined by local legislation must be used In addition the equipment can be returned to the distributor at the end of its working life when buying new equipment 3 The equipment may contain hazardous substances the improper use or incorrect disposal of such may have negative effects on human health...

Page 8: ...ll warranties are excluded in case installation is performed by unauthorized personnel or in case the LMC320 has not been correctly installed Electrical plant failures are to be immediately solved even though no immediate danger exists the LMC320 must not be operating Safety The LMC320 is not a safety component and can not be used in medical or life support equipment The LMC320 is not a safety com...

Page 9: ...p water Heat Pumps Hot tap water Heat Pump with attached solar panel House heating with Heat Pump and optional supply heat Some benefits from the LMC320 Heat Pump Controller Energy and cost saving through intelligent capacity control via frequency inverter Higher maximum capacity of compressors using frequency inverter Intelligent Defrost Scheduling Saves energy and ensures low capacity waste Inte...

Page 10: ...n pressure PWM Pulse Width Modulated Achieve an average value over time RS485 Serial communication interface SW Software Tamb Ambient temperature Tc Condensing temperature calculated from saturated discharge temperature Tdis Discharge temperature NTC temperature sensor To Suction temperature calculated from saturated suction pressure A LMC320 Heat pump controller kit from Lodam includes 1 Pc Lodam...

Page 11: ...e pump Solar panel pump Aux circulation pump Defrost valve Compressor inverter 0 10V Alarm relay High pres switch compressor Low pres Switch compressor Brine pres switch Start defrost Ethernet Connection option Analog input Output Digital inputs Display Ambient temperature Room temperature Heating tank temperature Cold side supply temperature Cold side return temperature Evaporator temperature Sol...

Page 12: ...e left Right arrow Select icon to the right Up arrow Select menu item one step up Increase value in editing mode Holding the button down in editing mode will increase step speed Down arrow Select menu item one step down Decrease value in editing mode Holding the button down in editing mode will increase step speed Enter button Open sub menu under the icon or lines ending with a Start editing mode ...

Page 13: ... Password User Alarm Status Seasonal status Room temperature Heating Winter 21 C From the main menu press the Right arrow to highlight the User icon and press the Enter button to show the User menu User 31 01 2010 09 31 Alarm Language Ambient curve offset Display Time Seasonal mode English 21 0 C Auto Hot water set point Room temp Set point 0 0 C 45 0 C New password 1 How to ...

Page 14: ... 3 3 C Cold side return temp 0 0 C Evaporator temp Heating set point Hot water set point Compressor frequency 0 5 C 35 4 C 45 0 C 4 71V Solar panel Status Ready Solar panel temp Solar panel water temp 19 3 C 34 7 C Set hot water temperature Open the User menu and scroll to the Hot water set point with the Up or Down arrows Press the Enter button to enter editing mode and adjust the temperature of ...

Page 15: ... Language Ambient curve offset Display Time Seasonal mode English Auto Hot water set point Room temp Set point 0 0 C 45 0 C New password 1 21 0 C In the Ambient Room temperature compensation menu Installer Ambient Room compensation the level of compensation can be set Access to the installer section To activate access to the installer section the correct password must be entered The default instal...

Page 16: ...eturn to main menu from where there now is access to the installer section 31 01 2010 09 31 Password User Installer Alarm Status Seasonal status Room temperature Heating Winter 21 C Select the Installer icon with the right arrow and press Enter button to show the Installer menu Installer 31 01 2010 09 31 Heat pump settings Hot water settings Service Date Heating settings Defrost settings Solar pan...

Page 17: ...ve Off AN1 Compressor speed 0 0 AN1 Compressor speed 0 0 V Off MainSwitch On In MainSwitch field On means the unit is running Off the unit is stopped and Manual that the outputs can be operated from this menu for service purposes Manual mode should be used by trained personnel only Setting the defrost function Open the Installer section Installer menu and scroll to the line with Defrost settings I...

Page 18: ... panel Open the Installer section Installer menu and scroll to the line with Hot water settings Installer 31 01 2010 09 31 Heat pump settings Hot water settings Service Date Heating settings Defrost settings Solar panel settings New password 2 Press the Enter button to open the How water settings menu Hot water 31 01 2010 09 31 Hot water source Hot water set point Hot water neutral zone HP EH SP 6...

Page 19: ...Solar panel settings menu Installer 31 01 2010 09 31 Heat pump settings Hot water settings Service Date Heating settings Defrost settings Solar panel settings New password 2 After pressing the Enter button the Solar panel settings menu will be shown Solar panel 31 01 2010 09 31 Sensor selection Start temp diff Stop part Max solar panel temp Max water temp Max restart temp Water tank 95 0 C 5 0 C 0...

Page 20: ...ump condenser are used for backup The controller includes a number of functions which are listed below Seasonal mode summer winter operation During the summer period there is no need for heating and to save energy the controller will only generate hot tap water using the heat pump and or an optional solar panel On the main default menu the actual seasonal status is shown The user can manually sele...

Page 21: ...mbient compensation curves for actual curves Heating control Room Compensation of return water temperature is calculated using only the room temperature The return water temperature control is based only on the measured room temperature and the selected setpoint Return water temperature is limited by Heating Set point Min and Heating Set point Min Ambient Room comp Max room comp It is therefore im...

Page 22: ...control Room temperature can be controlled based on a simple start and stop of the heatpump Room temperature setpoint is set on the user menu Room temp Set point and the acceptable difference is set in installer menu Heating settings Heating neutral zone When the room temperature is below the setpoint minus half of the difference the heat source reference setpoint is set to the maximum allowable t...

Page 23: ...acity CapAct change is limited to max 1 per second and if evaporator sensor temperature is close to a preset value MinTevap the rate of change limited according to the graph below Gain Gain and integration time Tn is adjustable In heating control modes 1 and 3 the compressor is started when the selected temperature is below the setpoint neutral zone The compressor is stopped when the temperature i...

Page 24: ... Hot water control Hot water is produced using the heat pump a supplemental heating a solar panel or a combination of these heat sources Supplemental heating has a lower set point and is only meant as a backup function for producing hot water The solar panel is delivering hot water when it can and is operated in parallel with the other two heat sources If the compressor is controlled by a frequenc...

Page 25: ...ly if available and solar panel if available If the temperature is not reached after 5 hours within two attempts with normal time interval alarm 607 Legionella failed is raised Solar panel control The heat pump installation can be equipped with a solar panel as a supplemental hot water source The solar panel must have its own coil for heat exchange in the water tank and must be self secured agains...

Page 26: ...rvention is needed Low pressure The user must acknowledge the alarm for starting again Brine leakage The user must acknowledge the alarm for starting again Sensor monitoring The sensors are monitored against short circuit or lost connection and the appropriate alarm is set Please see section Alarm system and trouble shooting for a list of alarms and how to trouble shoot an alarm Hot side pump cont...

Page 27: ...s anti freeze protection functions to prevent damages to the installation These anti freeze functions are always active including in the Off mode Malfunctioning sensors could prevent these functions to work If the ambient temperature drops below 2 C the circulation pump for central heating is started Hereby the installation in cold areas is secured and the water temperature can be monitored If hot...

Page 28: ...7h 200h 5h 0h Cold side pump low 217h Heat pump Compressor Aux circ pump 217h Defrost valve 2h Hot gas defrost count 24 173h Air defrost count 13 31 01 2010 09 31 31 01 2010 09 31 Manual RE3 Hot water RE4 Cold pump RE5 Hot pump RE7 Solar panel pump RE8 Cold pump low Off Off Off Off Off Off RE9 Aux circ pump Off RE1 Compressor RE2 Heater RE10 Defrost valve Off AN1 Compressor speed 0 0 AN1 Compresso...

Page 29: ...atus can be Summer or Winter This affects the settings Room temperature shows the temperature at the room control sensor If the alarm icon is flashing the listed alarm is active or unacknowledged Password menu Enter the password for the desired user category Default passwords User 1 Installer 2 Menu system 31 01 2010 09 31 Password User Installer Alarm Status Seasonal status Room temperature Heati...

Page 30: ... fine tuning for the selected temperature curve This offset is applied for the entire curve regardless of selected curve Range 10 0 10 0 C Default 0 0 C Seasonal mode Switch between only producing hot water and hot water and heating Summer Only hot water is produced Winter Hot water and heating is produced Auto The ambient temperature is used for automatic switching between Summer and Winter Defau...

Page 31: ...Evaporator temperature Heating set point Heating set point Hot water setpoint Hot water setpoint Compressor frequency Actual voltage sent to the inverter for the compressor Solar panel status Off Heating Forced stop Solar panel temp Temperature of the solar panel Solar panel water temp Water temperature of the solar panel Menu system Display 31 01 2010 09 31 Status Heating supply temp Heating retu...

Page 32: ...th a capital before the text Warning Alarm or Critical can be acknowledged and will be cleared from the list Default is No alarm User Time setting menu Set the hour and minute in the real time clock of the controller Installer menu Heat pump settings Settings for the heat pump Hot water settings Settings for the hot water Heating settings Heating setup Defrost settings Adjustment of defrost functi...

Page 33: ... mode Control methods of the heat pump when generating heating Ret On Off On Off control of the heat pump based on the return temperature of the heating system HTank On Off On Off control of the heat pump based on the temperature of the heating accumulator tank Sup Modul Speed control of compressor via a FI based on supply temperature of the heating system HTank Mod Speed control of compressor via...

Page 34: ...mp damage during standstill periods of the heat pump The pumps will run for 15 s Range 0 60 d Default 1 d Fan stop delay Select how long time the fans cold pump should run after the compressor stops Range 0 60 s Default 15 s Installer Hot water settings Setup of hot water sources temperature and control Hot water source Different sources and combinations NONE No one defined HP Heat pump HP DUAL He...

Page 35: ...en producing hot water only for modulating control A frequency inverter controlled heatpump may have a better energy efficiency at lower speed than at max speed Range 10 100 Default 80 Hot water minimum If hot tap water temperature is below hot water minimum for more then Electrical heat delay the electrical heater is turned on If hot tap water temperature is above hot water minimum the heater is ...

Page 36: ...ure Installation specific Set point Min Low limit for heating setpoint Range 0 5 55 0 C Default 20 0 C Set point Max High limit for heating setpoint Range 0 5 55 0 C Default 55 0 C Heating setpoint Calculated setpoint for heating Only view calculated according to ambient room compensation settings and setpoint min max Heating neutral zone Neutral band for On Off control not for modulating control ...

Page 37: ...0 Output voltage to achieve stop capacity start difference with a frequency inverter Range 0 0 10 0 V Default 2 0 V Voltage at 100 Output voltage to achieve 100 capacity with a frequency inverter Range 0 0 10 0 V Default 10 0 V Start voltage Initial start up capacity speed of the compressor with a frequency inverter Range 0 0 10 0 V Default 1 0 V Gain Gain of the heating PI regulator Range 1 20 De...

Page 38: ...le room temperature the controller can compensate for ambient temperature and or room temperature This is achieved using different compensation curves where the effect of different ambient temperatures on the heating setpoint can be set Please see section for a full description Temp control mode With or without ambient room temperature compensation Options Min comp No ambient compensation fixed se...

Page 39: ...C Range 100 0 100 0 C Default 42 0 C Curve 1 Curve 0 C Corrected room temperature setpoint at ambient temperature of 0 C Range 100 0 100 0 C Default 39 0 C Curve 1 Curve 10 C Corrected room temperature setpoint at ambient temperature of 10 C Range 100 0 100 0 C Default 33 0 C Curve 1 Curve 20 C Corrected room temperature setpoint at ambient temperature of 20 C Range 100 0 100 0 C Default 30 0 C Cu...

Page 40: ...t criteria is fulfilled when Tevap Ice level setting and Tambient Tevap Relative ice level setting Defrost method Defrost method can be Auto Automatic defrost method selection Hot gas is only used at ambient temperatures below 3 C AIR Only use air for defrost HG Only use hot gas OFF No defrost Default is OFF Ice level Defines the maximum evaporator temperature at which ice is formed Range 70 10 C ...

Page 41: ...t setting Menu for advanced defrost settings Installer Advanced defrost settings menu In this menu a further fine tuning of the installation can be done for air to water installations Instead of operating with fixed defrost intervals an ice timer is used for calculating time for the next defrost Ice melt temperature Defines the ambient temperature above which the ice timer is decremented when the ...

Page 42: ...0 C Force fan ambient min Min limit for continuous run of brine pump fan when heat pump has stopped Range 70 0 10 0 C Default 30 0 C Force fan ambient max Max limit for continuous run of brine pump fan when heat pump has stopped Range 70 0 10 0 C Default 3 0 C Forced fan Tevap stop Run brine pump fan continuous until evaporator temperature exceeds this setting Range 70 0 10 0 C Default 2 0 C Insta...

Page 43: ... to prevent damage on the rest of the installation Range 70 0 120 0 C Default 100 0 C Max water temp Max allowable water tank temperature Above this temperature the circulation pump is stopped If Solar water sensor is selected both water tank temperature and solar water temperature must be below this setting Range 50 0 90 0 C Default 70 0 C Max restart temp Solar panel temperature at which operati...

Page 44: ...ing panel Counters Menu with various runtime counters for the installation Manual Menu with controller outputs which can be controlled manually when the unit is in manual mode for trouble shooting or service purposes Installer Date menu Set the date of the controller Year Set the year of the controller Month Set the actual month Day Set the actual day Menu system Service 31 01 2010 09 31 LMC 320 v...

Page 45: ... be set in manual mode in the Heat pump menu in the field Control mode If the controller is not in manual mode all settings will always be Off or 0 00V MainSwitch Operation mode Off Unit is stopped On Unit is running Manual Unit is in manual mode for service Default On RE1 compressor If set to On the relay for the compressor is activated RE2 Heater If set to On the relay for the heater is activate...

Page 46: ...ow If set to On the relay for the cold pump low is activated RE9 Aux circ pump If set to On the relay for the aux circulation pump is activated RE10 Defrost valve If set to On the relay for the defrost valve is activated AN1 Compressor speed The entered percentage will be sent out to output ANOUT0 as a voltage for compressor speed based on entered scaling Range 0 0 100 0 Default 0 0 AN1 Compressor...

Page 47: ...7 oktober 2010 Page 1 LMC 320 ground to water no solar panel heating tank on heating system RAD LP HP BP T1 T5 T4 T3 R4 R9 R2 M R3 DI2 DI1 DI3 T7 T8 T2 R1 T6 R5 RAD LP HP T2 T5 T4 T3 R1 R4 R5 R2 M R3 DI2 DI1 T11 T7 T9 T1 7 oktober 2010 Page 3 LMC 320 Air to water ON OFF control solar panel connected to hot water tank R7 T10 R10 7 oktober 2010 LMC 320 ground to water no solar panel dual condenser R...

Page 48: ...ch DI4 Start defrost Supply 24V ac T1 Heating supply temp T2 Heating return temp T3 Water tank temp T4 Ambient temp T5 Room temp T11 Solar panel temp T7 Cold side supply temp T9 Evaporator temp T8 Cold side return temp AO0 Compressor inverter 0 10V T10 Solar water temp T6 Heating tank temp R9 Aux circulation pump LMC320 Heat Pump Controller LMC300 512 kB LOM309 Display heater USB RS485 Gnd A B 12V...

Page 49: ...P200 RS485 12 VDC In A B Gnd 12VU A2 B2 Gnd A1 B1 1 2 3 4 1 2 3 4 Connections on the LUP200 Display heater Power supply RS485 USB 12 VDC In A B Gnd Gnd 12 VDC Out 12 VDC In Ext Mini B conn Gnd 12 VDC In Remove jumper if external power supply is used Max 1 5 A Connections ...

Page 50: ...e transmitters Rin 25KΩ Digital inputs 4 not galvanic isolated 0 5V with pull up resistor 2 can be used for secure inputs for RE1 2 Analog outputs AO1 to AO4 4 0 10V 3 max 10mA max frequency 1Hz RAM 64kB Safety relay outputs RE1 and RE2 2 can be used together with digital inputs 1 and 2 10A 24VDC 10A 250VAC Relay outputs RE3 to RE5 3 10A 24VDC 10A 250VAC RE5 is a toggle relay RS485 ports 2 with 12...

Page 51: ... in daisy chain USB port 1 mini B connector devide mode only Temperature sensor 1 onboard NTC temperature sensor Display backlight lifetime 30 000 hours at 20 C and normal brightness Light intensity sensor 1 onboard light intensity sensor Number of buttons 6 buttons Languages Ready for multiple languages special characters IP 66 1 Note1 IP66 if the LUP200 is mounted in a metal sheet cabinet of at ...

Page 52: ... ports 1 USB host 2 ports with A connector USB device 1 port with mini B connector External flash Flash for data logging 16MB RAM 64MB GPRS GSM Modem Siemens MC55 incl sim card reader Option connector 24 pins for connetion to LMC300 Optimized for linux applications 2 x USB host webserver mail GSM GPRS datalog via internet software update via internet 4 LEDs 1 button 485 termination jumper Note The...

Page 53: ... Not galvanic isolated Brine pressure switch BP DI DIN3 NO Brine pressure switch signal Signal activated by short circuiting to ground 3 3VDC max 3 3mA 1kΩ Not galvanic isolated Start defrost DI DIN4 NO External signal start defrost Signal activated by short circuiting to ground 3 3VDC max 3 3mA 1kΩ Not galvanic isolated Heating supply temperature T1 T Temp1 Heating supply temperature Lodam NTC se...

Page 54: ... input Signal Gnd Room temperature T5 T Temp5 Room temperature Lodam NTC sensor Measurement range 60 C to 130 C Accuracy 1 C in the range 30 C to 60 C 3 C in the range 60 C to 30 C 3 C in the range 60 C to 130 C 2 terminals per input Signal Gnd Heating tank temperature T6 T Temp6 Heating tank temperature Lodam NTC sensor Measurement range 60 C to 130 C Accuracy 1 C in the range 30 C to 60 C 3 C in...

Page 55: ...0 C 3 C in the range 60 C to 30 C 3 C in the range 60 C to 130 C 2 terminals per input Signal Gnd Solar panel temperature T11 T Temp11 Solar panel temperature Lodam NTC sensor Measurement range 60 C to 130 C Accuracy 1 C in the range 30 C to 60 C 3 C in the range 60 C to 30 C 3 C in the range 60 C to 130 C 2 terminals per input Signal Gnd Compressor speed for inverter 0 10V AO Anout0 Compressor sp...

Page 56: ... 30VDC Solar panel pump R7 DO RE2OUT LOM309 NO Relay for Solar panel pump ON Max 10A 250VAC 5A 30VDC Aux circulation pump R9 DO RE4OUT LOM309 NO Relay for Aux circulation pump ON Max 10A 250VAC 5A 30VDC Defrost valve R10 DO RE5OUT LOM309 NO Relay for Defrost bypass valve ON Max 10A 250VAC 5A 30VDC Alarm R11 DO RE6OUT LOM309 NO Relay for Alarm active Max 10A 250VAC 5A 30VDC Supply 24 VAC P AC Contr...

Page 57: ...57 Ver 1 0 11 10 10 12 Drawings All dimensions in mm LMC300 Mounting dimensions 100 0 0 5 5 0 0 2 90 0 0 1 175 0 0 5 5 0 0 2 85 3 0 1 79 7 0 1 4 5 0 1 Drawings ...

Page 58: ...ump Controller Ver 1 0 11 10 10 107 0 0 5 4x Max R2 0 8x 4 6 0 1 70 0 0 2 115 1 0 2 56 0 0 2 25 6 0 1 70 0 0 1 130 1 0 2 5 1 0 2 110 5 0 5 150 0 1 0 135 0 1 0 11 0 0 5 24 5 1 0 Connectors ESC PLATINUM LUP200 Panel cutout Drawings ...

Page 59: ...nity for residential commercial and light industrial environments EN61000 6 3 EMC Emission standard for residential commercial and light industrial environments EN60204 1 Safety of machinery Electrical equipment of machines General requirements Standards ...

Page 60: ...ay If the first letter is in uppercase Axxx Cxxx or Wxxx the alarm or warning is still standing and can t be acknowledged until the problem is solved If the first letter is lower case axxx cxxx or wxxx the alarm situation is not active anymore and the alarm or warning can be acknowledged by pressing the Enter button There is also a short text to an alarm number On the sample W104 tells that temper...

Page 61: ...cuited Check cable and connectors 110 Warning T6 Open Heating tank temperature open connection Check cable and connectors 111 Warning T6 Short Heating tank temperature short circuited Check cable and connectors 112 Warning T7 Open Cold supply temperature open connection Check cable and connectors 113 Warning T7 Short Cold supply temperature short circuited Check cable and connectors 114 Warning T8...

Page 62: ...ture too low state freeze protect Heat pump and electrical heater running full capacity Check that setting are not turned off 605 Warning Heat pump overheat Supply temperature too high condition total stop Check hot side pump overflow valve on high temperature side 606 Warning Solar panel overheat Solar panel is in forced stop condition SP state Forced stop Check connection to external temperature...

Page 63: ...cable length 2 m 433028 NTC high temperature sensor max 240 C Ø6 mm 20 mm house cable length 0 95 m ID Description NTC temperature sensor Alternative sensor T1 Heating supply temperature 433016 2 m cable 433015 5 m cable T2 Heating return temperature 433016 2 m cable 433015 5 m cable T3 Water tank temperature 433016 2 m cable 433015 5 m cable T4 Ambient temperature 433015 5 m cable 433016 2 m cabl...

Page 64: ...0 20 Ambient temperature Return temperature Curve1 Curve2 Curve3 Curve4 Curve5 Curve6 Curve7 Curve8 Curve9 Curve10 A poor insulation level means a higher impact of the ambient temperature on the room temperature and requires a higher calculated return water temperature The flat curves are for floor heating systems Curve 0 is reserved for a user defined curve Curve 9 is the one with the least adjus...

Page 65: ...0184 30 176683 156199 138322 122687 108991 20 96974 86415 77121 68927 61693 10 55298 49663 44610 40150 36183 0 32651 29500 26688 24173 21922 10 19904 18093 16465 15001 13683 20 12494 11420 10450 9572 8777 30 8056 7402 6807 6266 5774 40 5325 4916 4542 4200 3887 50 3601 3339 3098 2877 2674 60 2487 2315 2157 2011 1876 70 1752 1637 1530 1432 1341 80 1256 1178 1105 1037 975 90 916 862 811 768 720 100 6...

Page 66: ...t water control 24 Hot water settings 34 Hot water temperature 14 I Installer section 15 I O list 52 M Menu 28 Alarm menu 32 Ambient Room temp compensation 37 Heating controller menu 36 Heat pump settings 33 Hot water settings 34 Installer menu 32 Main menu 29 Manuel mode 44 Password menu 29 Runtime counters 44 Service menu 43 Solar panel 41 User display menu 31 User menu 30 N NTC temperature resi...

Page 67: ...67 Ver 1 0 11 10 10 21 Notes Notes ...

Page 68: ...Lodam electronics a s Kærvej 77 6400 Sønderborg Denmark Tel 45 73 42 37 37 Fax 45 73 42 37 30 lodam lodam com www lodam com Ver 1 0 11 10 10 ...

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