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Laars MagnaTherm MGH1600, Installation And Operation Instructions Manual, Page: 7 / 116

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Laars MagnaTherm MGH1600 Installation And Operation Instructions Manual Download Page 7

MagnaTherm Boilers and Water Heaters

Page 3

Models 1600 and 2000

Manual

gas valve

Blower

Touch Screen

Heat Exchanger

Condensing Unit

Air Intake and 

Filter

Water Outlet

Water Inlet

Vent

Power Pack

Perspective from opposite corner.  

Perspective from front left corner of unit.  
Shown with front doors and left side

panels removed. 

Condensate 

Trap

1.5 

Unit Overviews

 

 The next 3 pages give a visual reference to the basic 

component locations of the LAARS MagnaTherm. 

Summary of Contents for MagnaTherm MGH1600

Page 1: ...n will void the warranty AVERTISSEMENT Assurez vous de bien suivres les instructions donn es dans cette notice pour r duire au minimum le risque d incendie ou d explosion ou pour viter tout dommage ma...

Page 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 WATER FLOW REQUIREMENTS 5 1 MagnaTherm Boiler Flow and Head...

Page 3: ...TIONS 10 1 Filling the Boiler System 68 10 2 Initial Operation 69 10 2 1 Initial Burner Operation 69 10 2 2 Combustion Setup Procedure 69 10 3 Shutting Down the MagnaTherm 69 10 4 Restarting the Magna...

Page 4: ...LAARS Heating Systems...

Page 5: ...proper configuration 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 mus...

Page 6: ...ision 1 First Not CSA approved Altitude Gas input rating of the MagnaTherm shall be used for elevations up to 2000 ft 600 m The input rating at elevations above 2000 ft 600 m shall be reduced at a rat...

Page 7: ...Unit Air Intake and Filter Water Outlet Water Inlet Vent Power Pack Perspective from opposite corner Perspective from front left corner of unit Shown with front doors and left side panels removed Cond...

Page 8: ...LAARS Heating Systems Page 4 Manual gas valve Blower Touch Screen Models 2500 and 3000 Air Intake and Filter Water Outlet Water Inlet Vent Power Pack Condensate Trap Heat Exchanger Condensing Unit...

Page 9: ...nd Water Heaters Page 5 Models 3500 and 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 Excha...

Page 10: ...154 2 6 7 8 4 21 67 4 1 2500 30 8 78 87 221 41 5 105 60 5 154 60 8 154 6 5 16 71 180 4 10 9 8 25 76 4 1 3000 30 8 78 87 221 41 5 105 60 5 154 60 8 154 6 5 16 71 180 4 10 8 9 23 76 8 1 3500 34 5 88 97...

Page 11: ...lation 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 Table 1 should be me...

Page 12: ...on requirements specify that the space shall communicate with the outdoors in accordance with Method 1 or 2 See the following descriptions Where ducts are used they shall be of the same cross sectiona...

Page 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...

Page 14: ...herm boilers and water heaters are Vent Category IV appliances Per the requirements of Table 5 Vent Accessories Place in section 3 1 Model 1600 Model 2000 Model 2500 Model 3000 Model 3500 Model 4000 S...

Page 15: ...uggests using a tee with the branch connection sized to allow for insertion of a flue gas analyzer probe The branch connection must be resealable with a cap or other means to ensure the vent system re...

Page 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...

Page 17: ...n both vertical and horizontal applications When the combustion air is taken from the roof the combustion air must terminate at least 12 30 cm below the vent terminal 84 213 12 Figure 4 Minimum Ventin...

Page 18: ...ors a In the event that the side wall horizontally vented gas fueled equipment is installed in a crawl space or an attic the hard wired carbon monoxide with alarm and battery back up may be installed...

Page 19: ...F in the National Fuel Gas Code ANSI Z223 1 NFPA 54 and or CAN CSA B149 1 National Gas and Propane Installation Code Au moment du retrait d une chaudi re existante les mesures suivantes doivent tre pr...

Page 20: ...sizing information Refer to the applicable gas code for more detailed sizing information 4 Run gas supply line in accordance with all applicable codes 5 Locate and install manual shutoff valves in ac...

Page 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...

Page 22: ...0 2000 20 12 177 670 43 9 13 4 10 2500 25 14 220 833 46 14 10 3000 25 14 220 833 46 14 10 3500 30 17 266 1006 41 2 12 6 10 4000 30 17 266 1006 41 2 12 6 10 40 F Size Size 30 F Temperature Rise in F 25...

Page 23: ...c hot water 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 sta...

Page 24: ...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...

Page 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...

Page 26: ...iler Low temp radiant zone Low temp radiant zone 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 drawin...

Page 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...

Page 28: ...oilers High temp space heating zone circuit 4 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...

Page 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...

Page 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...

Page 31: ...en 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...

Page 32: ...ee phase wires WARNING The appliance must be electrically grounded in accordance with the requirements of the authority having jurisdiction or in the absence of such requirements with the latest editi...

Page 33: ...onfiguration menu will allow the installer to adjust Pump control Overrun time and Demand control for the various pumps in the system Caution The supply voltage to the MagnaTherm must not be disengage...

Page 34: ...LL optional LOW WATER CUT OFF BAS GATEWAY optional 7 1 E2346100 6 1 KM004300 5 1 A0014300 4 Terminal block for field connections A0014300 3 1 E0086800 2 1 30N7050 1 QTY PART NO DESCRIPTION ITEM NO PAR...

Page 35: ...MagnaTherm Boilers and Water Heaters Page 31...

Page 36: ...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 RESET HIGH LIMIT TO TB1 4C 120V N TO B4 PROBE 2 1 9 2 10...

Page 37: ...T TEMP INLET TEMP DRAIN WIRE FROM SHIELDED CABLE 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 GY BK R GY R FLAME ROD BK OR 2 1 3 4 TB1 39C TB1 40C...

Page 38: ...ROBE AT HX Y BL 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...

Page 39: ...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...

Page 40: ...ONTAINED HEREIN ARE PROPRIETARY TO LAARS HEATING SYSTEMS AND SHALL NOT BE REPRODUCED TRANSFERRED TO OTHER DOCUMENTS USED OR DISCLOSED TO OTHERS FOR MANUFACTURING OR ANY OTHER PURPOSE EXCEPT AS SPECIFI...

Page 41: ...ET V GRAY GY WHITE W PROPRIETARY TO LAARS HEATING SYSTEMS AND SHALL NOT BE REPRODUCED TRANSFERRED TO OTHER DOCUMENTS USED OR DISCLOSED TO OTHERS FOR MANUFACTURING OR ANY OTHER PURPOSE EXCEPT AS SPECIF...

Page 42: ...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...

Page 43: ...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...

Page 44: ...GH VOLTAGE 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 RE...

Page 45: ...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 11 J8 12 J4 2 J4 4 TB1 4A TB1 4A J4 6 J4 2 J4 4 J4 6 TB1 4A...

Page 46: ...DHW SENSOR COM 2 MB2 REMOTE RESET 30 29 31 32 33 34 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 OUTDOO...

Page 47: ...34 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 T...

Page 48: ...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 11 J8 12 J4 2 J4 4 TB1 4A TB1 4A J4 6 VFD 16 VFD 17 J4 2...

Page 49: ...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 13 J8 6 J...

Page 50: ...al operation the Touch Screen will automatically present this Home screen See Menu 1 Menu 1 Home Screen Figure 27 To access the Touch Screen The home screen shows a picture of the MagnaTherm controlle...

Page 51: ...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...

Page 52: ...s andmechanics Hazardousburnerconditionscan happenwithimproperoperationsthatmayresultin PROPERTYLOSS PHYSICALINJURY orDEATH Press OK to continue The system will ask you to login before you make a chan...

Page 53: ...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...

Page 54: ...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...

Page 55: ...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...

Page 56: ...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...

Page 57: ...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...

Page 58: ...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...

Page 59: ...this feature OFF The next time a call for heat is supplied the unit will light normally 9 7 15 System Configuration The installer can set the control to display temperature units in F or C can adjust...

Page 60: ...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...

Page 61: ...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...

Page 62: ...lave by 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 and press OK Then you can select Slave Enable Select Enable sl...

Page 63: ...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...

Page 64: ...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...

Page 65: ...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...

Page 66: ...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...

Page 67: ...tact 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 the controls la...

Page 68: ...put at 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...

Page 69: ...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 this feat...

Page 70: ...active when the boiler is in Run mode To setup high fire select maximum modulation then Start Test buttons Wait for the boiler to enter run and the fan speed to reach the maximum RPM Using a combustio...

Page 71: ...r than high fire CO2 0 9 to 09 wc 3 000 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 CO2 0 5 to 1 2 wc 3 500 Natural 9 0 0 2 0 25 lower than h...

Page 72: ...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...

Page 73: ...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...

Page 74: ...e g Low water cutoff c Pressure switches h Burner d Blower i Heat exchanger e Pump j Ignitor Do the following once every six months 1 If a strainer is employed in a pressure reducing valve or the pipi...

Page 75: ...ever touch the silicone nitride tip with bare skin oils in your skin can cause damage and failure upon heat up To verify a defective ignitor the cold resistance of the wires can be measure to be in th...

Page 76: ...mall amount of water to rinse all of the debris out of the bottom of the flue collector and into the longer condensate trap line which is being diverted into a separate container Note The Warranty doe...

Page 77: ...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 alerts...

Page 78: ...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...

Page 79: ...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...

Page 80: ...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...

Page 81: ...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...

Page 82: ...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...

Page 83: ...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...

Page 84: ...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...

Page 85: ...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...

Page 86: ...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...

Page 87: ...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...

Page 88: ...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...

Page 89: ...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...

Page 90: ...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...

Page 91: ...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...

Page 92: ...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...

Page 93: ...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...

Page 94: ...ncludes a diagnostic screen that lists some information on the Lead Lag slaves in the system See Menu 41 Menu 41 Lead Lag Diagnostics Use the left and right arrows to see all of the columns in the dis...

Page 95: ...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...

Page 96: ...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...

Page 97: ...l top left 20N3035 20N3035 30N3057 30N3057 40N3035 40N3035 24 Bracket pressure switch 20N3053 20N3053 20N3053 20N3053 20N3053 20N3053 25 Cover field connections 17J3025 17J3025 17J3025 17J3025 17J3025...

Page 98: ...LAARS Heating Systems Page 94 1 13 12 4 3 5 13 2 15 Final Assembly DETAIL A 9 10 8 Final Assembly...

Page 99: ...2116500 16 Grommet push in S2123600 S2123600 S2123600 S2123600 S2123600 S2123600 17 Plug button 7 8 F0032300 F0032300 F0032300 F0032300 F0032300 F0032300 18 Flue Gas Sensor E2340000 E2340000 E2340000...

Page 100: ...344901 E2362000 E2363400 E2362301 E2362300 E2362300 10 Pressure switch E2362200 N A N A N A E2362302 E2362302 11 Outlet box not shown E2350900 E2350900 E2350900 E2350900 E2350900 E2350900 12 Spacer F2...

Page 101: ...MagnaTherm Boilers and Water Heaters Page 97 A 12 10 1 2 2 3 6 16 8 7 11 13 15 14 4 9 5 A 12 10 1 2 2 3 6 16 8 7 11 13 15 14 4 9 5 13 2 4 Blower Burner Assembly Part Numbers Model 1600...

Page 102: ...N A 3500 4000 Item Description Part No Part No 1 Burner L2019900 L2019900 2 Gasket burner S2124100 S2124100 Item Description Part No Part No Part No Part No Part No Part No 1 Heat Exchanger R16N2070...

Page 103: ...o Part No Part No Part No Part No 1 Heat Exchanger R16N2070 R20N2070 R30N2070 R30N2070 R40N2070 R40N2070 2 Plate rear panel gas pipe 20N3034 30N3034 30N3034 30N3034 30N3034 30N3034 3 Door right 20N310...

Page 104: ...T 4 1 R E T P A D A 0 0 2 0 9 0 2 P 2 2 0 4 T G M R E N R U B 0 0 9 9 1 0 2 L 1 1 1 X C N U 6 1 8 3 P A C X E H W E R C S 7 9 3 0 2 F 8 8 D T L P C N I Z C N U 6 1 8 3 T U N 0 0 1 3 0 0 0 F 6 1 6 1 1...

Page 105: ...essure switch low gas R2004100 R2004100 R2004100 R2004100 2 Pressure switch high gas R2004000 R2004000 R2004000 R2004000 3 Elbow P0008600 P0008600 P0008700 P0008700 4 Nipple P0020000 P0019800 P0021200...

Page 106: ...LAARS Heating Systems Page 102 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 1600 2000 2500 and 3000...

Page 107: ...0011300 18 Elbow 1 8 P2008900 P2008900 P2008900 P2008900 19 Nipple 1 8 P0011100 P0011100 P0011100 P0011100 20 Nipple tee weldment 30N6031 30N6031 30N6031 30N6031 21 Tee 1 8 P0027100 P0027100 P0027100...

Page 108: ...l 1 70 236 PIPE PLUG MA 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...

Page 109: ...ee 3 8 P2090600 P2090600 24 Bushing 3 8 x1 8 P2090700 P2090700 25 Nipple 3 8 x2 P2089000 P2089000 26 Ball valve 3 8 V2022200 V2022200 27 Pilot regulator V2022100 V2022100 28 Compression fitting 1 4 tu...

Page 110: ...LAARS Heating Systems Page 106 6 2 7 11 1 5 4 12 10 3 3 8 9 6 Control Panel Assembly...

Page 111: ...100 RE2075100 RE2075100 RE2075100 RE2075100 3 Bushing 7 8 nylon open E2074300 E2074300 E2074300 E2074300 E2074300 E2074300 4 Relay 24VAC DPDT E2327800 E2327800 E2327800 E2327800 E2327800 E2327800 5 Di...

Page 112: ...LAARS Heating Systems Page 108 1 2 3 12 10 7 9 8 14 13 4 5 6 AC DISTRIBUTION BOX ASSEMBLY PART NUMBERS MODEL1600 13 2 11 Distribution Box Assemblies and Part Numbers...

Page 113: ...MagnaTherm Boilers and Water Heaters Page 109 2 5 6 7 15 4 14 11 3 9 13 8 10 1 AC DISTRIBUTION BOX ASSEMBLY PART NUMBERS MODEL 2000...

Page 114: ...LAARS Heating Systems Page 110 7 8 15 14 9 4 16 12 5 1 6 2 11 AC DISTRIBUTION BOX ASSEMBLY PART NUMBERS MODELS 2500 AND 3500...

Page 115: ...MagnaTherm Boilers and Water Heaters Page 111 7 8 15 14 9 4 16 12 5 1 6 2 11 AC DISTRIBUTION BOX ASSEMBLY PART NUMBERS MODELS 3000 AND 4000...

Page 116: ...867 603 335 6300 Fax 603 335 3355 1869 Sismet Road Mississauga Ontario Canada L4W 1W8 905 238 0100 Fax 905 366 0130 www LAARS com Litho in U S A LAARS Heating Systems 1504 Document 1276D Dimensions an...

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