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LAARS Heating Systems

Page 84

menu 36. analog I/o Screen

4. Press the button for Diagnostic Tests. The

Modulation test allows you to change the

rate at which the burner fires, and watch the

results. See Menu 37

menu 37. modulation test

5. Press the Pump Test button. The Pump test

shows detailed information about the three

pumps that may be used by the system.

menu 38. Pump test

12.4 lead/lag Slave Diagnostics

The control system includes a diagnostic screen that

lists some information on the Lead/Lag slaves in the

system. See Menu 39

menu 39. lead/lag Diagnostics

Use the left- and right-arrows to see all of the

columns in the display.

12.5 Statistics

The controller can present some summary information

about the operation of the system – number of pump

cycles, number of burner cycles, etc.

menu 40. Statistics Configuration Screen

12.6 analysis

The control system includes an Analysis branch

that can display the behavior over a period of time

for several different parameters: fan speed, outlet

temperature, inlet temperature, etc.

menu 41. analysis Setup Screen

Содержание MAGNATHERM MGH2000

Страница 1: ...se serious injury property damage or death Improper installation and or operation will void the warranty AVERTISSEMENT Assurez vous de bien suivres les instructions donn es dans cette notice pour r du...

Страница 2: ...Massachusetts 14 3 4 Common Vent Test 15 3 5 Outdoor Installation 16 Section 4 Gas Supply and Piping 4 0 Gas Supply and Piping 16 Section 5 Pump Requirements 5 1 MagnaTherm Boiler Flow and Head Requi...

Страница 3: ...up Instructions 10 1 Filling the Boiler System 62 10 2 Initial Operation 63 10 2 1 Initial Burner Operation 63 10 2 2 Combustion Setup Procedure 63 10 3 Shutting Down the MagnaTherm 63 10 4 Restarting...

Страница 4: ...LAARS Heating Systems...

Страница 5: ...onfiguration can cause fuel buildup and explosion Improper user operation may result in property loss severe physical injury or death Any changes to safety related configuration parameters must only b...

Страница 6: ...following information describes the model number structure 1 2 Model Series Designation M G MagnaTherm 3 Usage H Hydronic V Volume Water 4 7 Size 2 0 0 0 1 999 000 BTU hr input 3 0 0 0 3 000 000 BTU...

Страница 7: ...r Condensing Unit Air Intake and Filter Water Outlet Water Inlet Vent Power Pack Perspective from opposite corner Perspective from front left corner Shown with front doors and left side panels removed...

Страница 8: ...LAARS Heating Systems Page 4 Manual gas valve Blower Touch Screen Model 3000 Air Intake and Filter Water Outlet Water Inlet Vent Power Pack Condensate Trap Heat Exchanger Condensing Unit...

Страница 9: ...ers and Water Heaters Page 5 Model 4000 Manual gas valve hidden behind main gas valve Blower Touch Screen Air Intake and Filter Water Outlet Water Inlet Vent Power Pack Condensate Trap Heat Exchanger...

Страница 10: ...8 75 85 6 G H J K l m n P q r S t Inches cm Inches cm 60 8 154 2 6 7 8 4 21 67 4 171 4 10 39 2 100 30 4 77 16 41 23 58 10 2 26 14 36 13 33 71 180 4 10 8 9 23 76 8 195 4 3 11 44 4 113 34 5 88 17 7 45 2...

Страница 11: ...l for snow accumulation in the local area both terminals should be installed at an appropriate level above grade or the maximum expected snow line The dimensions and requirements that are shown in Tab...

Страница 12: ...stalled or the combustion air can be ducted directly to the unit Ventilation air must be provided in either case 3 1 1 Combustion Air From Room In the United States the most common requirements specif...

Страница 13: ...t pipe length allowed is 100 feet 30 m Each elbow is considered to be 5 feet 1 5m When using polypropylene or stainless steel materials in horizontal duct configurations a single elbow must be install...

Страница 14: ...hout the addition of an external vent extraction fan professionally engineered and approved by the local jurisdiction MagnTherm units are never permitted to share a vent with any Catagory 1 appliances...

Страница 15: ...e gas sampling port internal to the MagnaTherm so one must be installed in the vent system external to the MagnaTherm A flue gas sampling port available as a component of the ULC S636 certified vent s...

Страница 16: ...gulator vent outlet See note 4 3 feet 91 cm J Clearance to nonmechanical air supply Direct vent only 36 91cm inlet to building or the combustion air inlet Other than Direct vent 4 ft 1 2m below 36 inc...

Страница 17: ...roup is 84 213 cm See Figure 5 6 The vent outlet must be at least 12 above the top of the air inlet and must be at least 84 213 cm horizontally from the air inlet See Figure 5 84 213 12 Figure 4 Minim...

Страница 18: ...d In addition the installing plumber or gasfitter shall observe that a battery operated or hard wired carbon monoxide detector with an alarm is installed on each additional level of the dwelling build...

Страница 19: ...to their previous conditions of use 7 Any improper operation of the common venting system should be corrected so the installation conforms with the National Fuel Gas Code ANSI Z223 1 NFPA 54 and or CA...

Страница 20: ...p must be provided upstream of the gas controls 7 All threaded joints should be coated with piping compound resistant to action of liquefied petroleum gas 8 The appliance and its individual shutoff va...

Страница 21: ...bic Feet of Gas per Hour Table 8 Pipe Capacity for Natural Gas Table 9 Pipe Capacity for Propane Nominal 1 2 2 3 4 Actual ID 1 61 2 067 2 469 3 068 4 026 Length ft 10 3 520 6 790 10 800 19 100 39 000...

Страница 22: ...Therm Electrical Op Temp Rise Flow Head Loss Grains F C GPM LPM Feet m per Gallon 2000 20 12 177 670 43 9 13 4 10 3000 25 14 220 833 46 14 10 4000 30 17 266 1006 41 2 12 6 10 Size Size Size temperatur...

Страница 23: ...er Section 6 Water Connections MGH Boilers 6 1 MGH System Piping Hot Supply Connections Note This appliance must be installed in a closed pressure system with a minimum of 12 psi 82 7 kPa static press...

Страница 24: ...g Schematics Figure 7 through Figure 10 show suggested piping configurations for MGH boilers These diagrams are only meant as guides All components or piping required by local code must be installed 6...

Страница 25: ...feed controls Air vent 4 pipe dia max 4 pipe dia max 4 pipe dia max 4 pipe dia max Low temp radiant zone Space heating zone circuits Space heating zone circuit System pump Note This drawing is a sche...

Страница 26: ...one Air vent Water feed controls Expansion tank 4 pipe dia max Indirect DHW tank Anti scald mixing valve Domestic hot water out Cold water Note This drawing is a schematic representation of a piping s...

Страница 27: ...ow temp radiant zone Space heating zone circuit Air vent Water feed controls Expansion tank Common piping must be sized for the combined water flow of all of the boilers 4 pipe dia max 4 pipe dia max...

Страница 28: ...pipe dia max 4 pipe dia max 4 pipe dia max Indirect DHW tank Note Indirect pump must be sized for boiler and indirect Anti scald mixing valve Domestic hot water out Cold water Note In this piping arr...

Страница 29: ...r less with a pH range of 6 5 to 9 5 pH Values outside of this range may reduce the life expectancy of the product Operating the MGV in water with higher hardness levels will cause heat exchanger foul...

Страница 30: ...ndensate inside and outside of the boiler from freezing Damage due to freezing water or condensate is not covered by the warranty If installed indoors and there is an event such as a power outage comp...

Страница 31: ...n the drain connection and a floor drain or condensate pump if a floor drain is not accessible The condensate drain must be installed to prevent the accumulation of condensate When a condensate pump i...

Страница 32: ...m line is equipped with multiple voltage packages to adapt to customer needs ranging from 120 600 volts with single or 3 phase versions Refer to the rating plate for appropriate voltage and current ra...

Страница 33: ...mp terminals are found on the Main control board TB1 15A through 20A They are fed 120 Volts internally from the main power feed The current rating of the contacts is 7 4 amps and an appropriately size...

Страница 34: ...LAARS Heating Systems Page 30 Figure 14 Electronics Panel Layout 1 CA 2 KM 1 E23 1 E23 1 KM 1 A00 A00 1 E00 1 30 QTY PA 5 2 4 6 8 1 9 7 3 8 4 Control Panel Layout...

Страница 35: ...ESET HIGH LIMIT CONTROL 8 1 E2339800 TOUCH SCREEN ALARM SILENCE SWITCH MANUAL RESET HIGH LIMIT ALARM BELL optional LOW WATER CUT OFF BAS GATEWAY optional 7 1 E2346100 6 1 KM004300 5 1 A0014300 4 Termi...

Страница 36: ...OR OR W BR Y BL W BR BL BK W BK Y G BK W V BR BL W R W R W Y 4 DISPLAY 7 DISPLAY 8 LWCO 2 120V N P1 P2 ADDITIONAL HIGH LIMIT BLOCKED FLUE BLOCKED INTAKE THERMAL CUTOUT FLOW SWITCH HIGH GAS MANUAL RESE...

Страница 37: ...TEMP DRAIN WIRE FROM SHIELDED CABLE BL BL W W BK BL BL V V R R BL BL Y Y Y USED ON SIZE 4 0 KBTU ONLY BL Y BL V W V OR OR W W BK W V W BK BR Y BR Y G W BK BK BK R BK Y W R W R W R GY BL BR R BR Y GY V...

Страница 38: ...LTAGE PANEL E23578 D C B 4 3 1 S PROPRIETARY TO LAARS HEATING SYSTEMS AND SHALL NOT BE 2 BY LAARS HEATING SYSTEMS DWG NO SH 1 REV KG 1 17 14 REVISIONS REV CHANGE APPR ENGR APPR ECN DRAFT CHECK RELEASE...

Страница 39: ...L A B C D 4 3 1 TITLE PROPRIETARY TO LAARS HEATING SYSTEMS AND SHALL NOT BE 2 BY LAARS HEATING SYSTEMS FRACTIONS DWG NO E23603 SH 1 2 5 14 REVISIONS REV CHANGE APPR ENGR APPR ECN DRAFT REV RELEASED 14...

Страница 40: ...1 BY LAARS HEATING SYSTEMS E23602 SH 1 DWG NO REV AL 2 4 14 REVISIONS REV CHANGE APPR ENGR APPR ECN DRAFT CHECK RELEASED JM 2 4 14 14 002N 13 APPROVALS UNLESS OTHERWISE SPECIFIED PURPOSE EXCEPT AS SPE...

Страница 41: ...6 37 38 39 40 42 41 TOD FEED J10 2 J6 8 J6 7 ALARM 27 28 26 25 24 23 22 21 TB1 4A 20 19 18 17 15 16 FIELD CONNECTIONS TT ANALOG OUTDOOR SYSTEM DHW PUMP SYSTEM PUMP BOILER PUMP J8 3 TB1 13 J8 6 J8 7 J8...

Страница 42: ...5 24 23 22 21 TB1 4A 20 19 18 17 15 16 FIELD CONNECTIONS TT ANALOG OUTDOOR SYSTEM DHW PUMP SYSTEM PUMP BOILER PUMP J8 3 TB1 13 J8 6 J8 7 J8 11 J8 12 J4 2 J4 4 TB1 4A TB1 4A J4 6 VFD 16 VFD 17 J4 2 J4...

Страница 43: ...DISPLAY 4 35 36 37 38 39 40 42 41 TOD FEED J10 2 J6 8 J6 7 ALARM 27 28 26 25 24 23 22 21 TB1 4A 20 19 18 17 15 16 FIELD CONNECTIONS TT ANALOG OUTDOOR SYSTEM DHW PUMP SYSTEM PUMP BOILER PUMP J8 3 TB1 1...

Страница 44: ...al operation the Touch Screen will automatically present this Home screen See Menu 1 Menu 1 Home Screen Menu 2 Status Summary Figure 22 To access the Touch Screen The home screen shows a picture of th...

Страница 45: ...d Setup and parameter changes made when the system is installed and some diagnostic and troubleshooting functions The installer level password is lnt lower case LNT User Level no password required Non...

Страница 46: ...s andmechanics Hazardousburnerconditionscan happenwithimproperoperationsthatmayresultin PROPERTYLOSS PHYSICALINJURY orDEATH Press OK to continue The system will ask you to login before you make a chan...

Страница 47: ...ify the entries in those groups in the same way Do this until the following screen shows Menu 8 Safety Parameter Reset 6 When the process is complete the system will tell you to reset the control syst...

Страница 48: ...uts used by the system Details Allows you to check the status of all of the setup parameters on the control system 9 5 Configuring Parameters In this section we will give you a quick explanation of ho...

Страница 49: ...and Alert logs will be incorrect The display has a removable battery CR2032 to store time date lockout and alerts in the event of a power failure To set the clock 1 Start at the home screen Menu 14 H...

Страница 50: ...display information regarding software date codes model numbers and program name as well as giving the installer access to re name the boiler and to change the modbus addresses for lead lag operation...

Страница 51: ...ect water heaters that are used with boiler MGH systems 9 7 5 Warm Weather Shutdown Configuration Connect the outdoor reset sensor as descibed in Section 9 7 3 From this menu you will be able to enabl...

Страница 52: ...er Run Time DHW Pump Cycles Boiler Pump Cycles and System Pump Cycles This menu is Read Only 9 7 10 High Limits The outlet High limit can be adjusted using the installer password After a change is mad...

Страница 53: ...ght normally Model Propane Orifice inches Propane Pressure Natural Pressure 2000 0 040 3 4 3 4 3000 0 035 3 4 3 4 4000 0 047 2 3 3 4 Table 14 Required Gas Pressures 9 7 15 System Configuration The ins...

Страница 54: ...Lead Lag Master A Run sequence is initiated when the system temperature falls to the Lead Lag Central Heat setpoint Actually this is the LL CH setpoint less the On Hysteresis value The default settin...

Страница 55: ...at the firing rate of that first boiler rises to your boiler configurations Base Load Value see Table 15 the next boiler in the sequence will start up and begin firing at 20 to 35 fan speed depending...

Страница 56: ...turning on Slave Enable You will be prompted to sign in This can be done by pressing the LOCK symbol at the top right type in lnt LNT lower case and press OK Then you can select Slave Enable Select En...

Страница 57: ...entral Heat CH Config Central Heat CH Config Setpoint CH Config Setpoint CH Config Setpoint CH Config Setpoint CH Config Setpoint CH Config Setpoint CH Config Setpoint CH Config Modulation CH Config M...

Страница 58: ...Auto 22 50 Auto On 100 100 60 100 60 100 CH LL Slave CH DHW LL Slave DHW CH DHW Arrow Points to Loop with Higher Priority Arrow Points to Loop with Higher Priority Shutdown Immediately 95F Shutdown I...

Страница 59: ...me Shutdown Immediately Shutdown Immediately Disabled 65 65F 40F 150F 0 Disabled 0 100 Enable Disable DHW CH Enabled CH DHW DHW CH Enable Disable Drop After Priority Time 240 min or 4 Hrs Boost During...

Страница 60: ...gs Modulation Lead Lag Master Config Adv Settings Modulation Lead Lag Master Config Adv Settings Modulation Lead Lag Master Config Adv Settings Modulation Lead Lag Master Config Adv Settings Modulatio...

Страница 61: ...protocols contact the factory Signals from the Building Automation System will be connected to the COM2 terminals located on TBI 33A through 35A of this master boiler display WARNING When servicing th...

Страница 62: ...100 10 VDC or 20 mA 5 Once the Main Gas valve is energized the PCB will maintain pump output at 100 for 60 seconds to allow the system to stabilize Once the 60 second timer has expired the PCB will t...

Страница 63: ...on in the lower left corner Menu 24 Configuration Menu 5 From the Configuration menu select the line Burner Control Ignition Menu 25 Burner Control Ignition Once there select Pilot Test Hold and turn...

Страница 64: ...n high fire CO2 0 5 to 1 2 wc Propane 10 0 0 2 0 25 lower than high fire CO2 0 5 to 1 2 wc 4 000 Natural 9 0 0 2 0 25 lower than high fire CO2 0 5 to 1 2 wc Propane 10 0 0 2 0 25 lower than high fire...

Страница 65: ...gh Fire fan speed 100 After entering the appropriate fan speed select Manual Run in the Firing Rate Control section to the left of the same window then hit OK Once the Main flame establishes the contr...

Страница 66: ...ontrol that may have been under water Section 10 Initial startup Instructions 10 1 Filling the Boiler System 1 Ensure the system is fully connected Close all bleeding devices and open the make up wate...

Страница 67: ...ial Operation The initial setup must be checked before the unit is put into operation Problems such as failure to start rough ignition strong exhaust odors etc can be due to improper setup Damage to t...

Страница 68: ...ed service technician a Appliance control f Flow switch b Automatic gas valve g Low water cutoff c Pressure switches h Burner d Blower i Heat exchanger e Pump j Ignitor Do the following once every six...

Страница 69: ...amic encased hot surface ignitor The silicone nitride element is extremely fragile and should be handled with care in the event of removal never touch the silicone nitride tip with bare skin oils in y...

Страница 70: ...have been brushed clean rinse the tubes and combustion chamber with a small amount of water to rinse all of the debris out of the bottom of the flue collector and into the longer condensate trap line...

Страница 71: ...o the startup This indicates that the control system is waiting for a condition to be satisfied No Reset is required to recover from an alert The system maintains a history of the 15 most recent alert...

Страница 72: ...last 15 Lockout occurances Press Alerts to bring up a list of the last 15 Alerts and Silence Alarm in the event of a lockout condition By silencing the alarm the audible alert has been disabled Howeve...

Страница 73: ...ters need verification and a device needs reset to complete verification 2 Configuration ended without verification re enter configuration verify safety parameters and reset device to complete verific...

Страница 74: ...odule 2 If fault repeats replace module 18 Internal fault Safety relay test failed due to feedback not ON L Internal fault 1 Reset module 2 If fault repeats replace module 19 Internal fault Safety RAM...

Страница 75: ...r H Internal fault 1 Reset module 2 If fault repeats replace module 32 46 Internal fault Safety Key 0 through 14 L Internal fault 1 Reset module 2 If fault repeats replace module 47 Flame Rod to groun...

Страница 76: ...heck wiring and correct any faults 2 Check Preignition Interlock switches to assure proper functioning 3 Check the valve operation 4 Reset and sequence the module monitor the PII status 5 If code pers...

Страница 77: ...module 91 Inlet sensor fault H 1 Check wiring and correct any possible errors 2 Replace the Inlet sensor 3 If previous steps are correct and fault persists replace the module 92 Outlet sensor fault H...

Страница 78: ...ber Correct any errors 2 Make sure that the flame detector is wired to the correct terminal 3 Make sure the F G wires are protected from stray noise pickup 4 Reset and sequence the module if code reap...

Страница 79: ...nal hardware test Not a lockout 111 Flame current lower than weak threshold H Hold time of recycle and hold option Will not be a lockout fault Hold Only Internal hardware test Not a lockout 113 Flame...

Страница 80: ...FDs Variable speed Fan Drive ability to change speeds 3 Change the VFD 4 If the fault persists replace the module 137 ILK Interlock failed to close H 1 Check wiring and correct any possible shorts 2 C...

Страница 81: ...ppears replace the module 157 Combustion pressure and flame OFF L 1 Check that flame is not present in the combustion chamber Correct any errors 2 Make sure that the flame detector is wired to the cor...

Страница 82: ...module 2 If fault repeats replace module 174 Safety relay feedback incorrect L Internal Fault 1 Reset module 2 If fault repeats replace module 175 Safety relay open L Internal Fault 1 Reset module 2...

Страница 83: ...ical grounding 3 If fault repeats replace module 194 Invalid ignite failure response setting L 1 Return to Configuration mode and recheck selected parameters reverify and reset module 2 If fault repea...

Страница 84: ...ctrical grounding 3 If fault repeats replace module 205 Invalid Outlet high limit response setting L 1 Return to Configuration mode and recheck selected parameters reverify and reset module 2 If fault...

Страница 85: ...le 219 Invalid Stack limit response setting L 1 Return to Configuration mode and recheck selected parameters reverify and reset module 2 If fault repeats verify electrical grounding 3 If fault repeats...

Страница 86: ...3 If fault repeats replace module 230 Invalid CH Central Heat demand source setting L 1 Return to Configuration mode and recheck selected parameters reverify and reset module 2 If fault repeats verify...

Страница 87: ...to Configuration mode and recheck selected parameters reverify and reset module 2 If fault repeats verify electrical grounding 3 If fault repeats replace module 12 3 Diagnostic Tests and Input Output...

Страница 88: ...ncludes a diagnostic screen that lists some information on the Lead Lag slaves in the system See Menu 39 Menu 39 Lead Lag Diagnostics Use the left and right arrows to see all of the columns in the dis...

Страница 89: ...Sequence When there is a call for heat the unit will close pump contacts to energize the customer supplied relay contactor to start water flow Once the LCI circuit flow switch gas pressure switches L...

Страница 90: ...BUTION BOX G Section 13 Replacement Parts Use only genuine LAARS replacement parts 13 1 General Information To order or purchase parts for the LAARS MagnaTherm Appliance contact your nearest LAARS dea...

Страница 91: ...0N3050 40N3163 19 Hinge mounting bracket right 20N3164 30N3051 40N3164 20 Panel right rain splatter 30N3053 30N3053 40N3050 21 Panel left rain splatter 30N3054 30N3054 40N3050 22 Bracket hinge brace 3...

Страница 92: ...LAARS Heating Systems Page 88 DETAIL A View from Back 12 3 12 5 11 14 2 1 4 8 9 13 16 Final Assembly...

Страница 93: ...rubber bumper F2039700 F2037900 F2037900 13 Bushing nylon S0064900 S0064900 S0064900 14 Grommet 2 pipe S2116500 S2116500 S2116500 15 Grommet push in S2123600 S2123600 S2123600 16 Plug button 7 8 F003...

Страница 94: ...9 Pressure switch E2348101 E2348102 E2348101 10 Outlet box not shown E2350900 E2350900 E2350900 11 Spacer F2035400 F2035400 F2035400 12 Silicone rubber bumper F2039700 F2037900 F2037900 13 Bushing ny...

Страница 95: ...witch RE0013000 RE0013000 RE0013000 Flow switch paddle E2255800 E2255800 E2255900 4 Well immersion 1 2 NPT RE2058300 RE2058300 RE2058300 5 Sensor water temperature duplex RE2319900 RE2319900 RE2319900...

Страница 96: ...5090 N A 17 Gasket venturi gas valve S2104900 N A 4000 3 Door right 20N3100 30N3100 40N3100 4 Door left 20N3150 30N3150 40N3150 5 Control panel assemblies MGH 30N7080 30N7080 40N7080 MGH with CSD 1 30...

Страница 97: ...124600 14 Ignitor hot surface W2013900 15 Sight glass RF0044800 16 Flame sensor W2014000 Gas Train Assembly APPROVALS INTENDED SIZE 1 2 3 010 1 8 AL 6 17 13 SOFTWARE S CJT 6 17 13 DWG NO D SHEET 1 OF...

Страница 98: ...LAARS Heating Systems Page 94 28 26 26 23 27 16 31 23 20 5 35 11 10 29 7 25 34 37 2 24 9 12 13 14 3 3 4 36 1 17 19 26 9 6 6 21 17 18 22 30 32 15 8 33 Gas Train Assembly Models 2000 and 3000...

Страница 99: ...fitting 1 4 tube x 1 4NPT P0004100 P0004100 16 Pilot tube 20N5086 30N6027 17 Nipple 1 8 x2 P0011300 P0011300 18 Elbow 1 8 P2008900 P2008900 19 Nipple 1 8 P0011100 P0011100 20 Nipple tee weldment 30N6...

Страница 100: ...A 1 W2000300 VALVE MANUA 2 S2123500 WASHER SEA 2 P2089600 ADAPTER FEMALE 1 P2089300 ADAPTER 1 4 TUB 1 40N6040 GAS TRA 1 40N6031 GAS TRAIN 1 V2022300 VALVE 18 23 24 16 22 14 13 12 21 20 1 19 17 14 7 25...

Страница 101: ...ipe gas inlet 40N6034 19 Elbow 90 2 P2091100 20 Nipple 2 x2 P0021100 21 Flange 2 V2021900 22 Elbow 90 1 8 P2008900 23 Tee 3 8 P2090600 24 Bushing 3 8 x1 8 P2090700 25 Nipple 3 8 x2 P2089000 26 Ball va...

Страница 102: ...LAARS Heating Systems Page 98 6 2 7 11 1 5 4 12 10 3 3 8 9 6 Control Panel Assembly...

Страница 103: ...40 2 Low water cutoff RE2075100 RE2075100 RE2075100 3 Bushing 7 8 nylon open E2074300 E2074300 E2074300 4 Relay 24VAC DPDT E2327800 E2327800 E2327800 5 Display touch control E2339800 E2339800 E2339800...

Страница 104: ...03 335 6300 Fax 603 335 3355 1869 Sismet Road Mississauga Ontario Canada L4W 1W8 905 238 0100 Fax 905 366 0130 www Laars com Printed in U S A Laars Heating Systems 1401 Document 1276 Dimensions and sp...

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