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Laars MagnaTherm HTD Series, Installation And Operation Instructions Manual

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Laars MagnaTherm HTD Series Installation And Operation Instructions Manual Download Page 9

MagnaTherm HTD

Page 5

HTD

Manual 

Gas Valve

Manual 

Gas Valve

Pilot  

Gas Valve

Gas Inlet

Gas 
Valve

Gas Inlet

Air / Fuel Mixer

Gas Solenoid

Low Gas Pressure 

Switch

Fuel Damper

Air Damper

High Gas 

Pressure Switch

Pressure Regulator 

 & Shut-off

The Gas Train for all sizes has the same layout. These two views of the gas train show the linear path 

of the gas around the front of the unit to the Air Mixing Valve and then into the blower.  

View 1 

 

View 2 

 

1.F  Gas Train Components

Summary of Contents for MagnaTherm HTD Series

Page 1: ...or gas supplier 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 mat riel t...

Page 2: ...ON 4 Water Flow and Headloss Data 22 4 A General Water Flow Information 22 4 B Boiler Water Flow Headloss Data 22 4 C Water Heater Water Flow and Headloss Data 23 SECTION 5 Piping 24 5 A Boiler Water...

Page 3: ...2 Digital I O Input Output 89 8 E 3 Analog I O 90 8 E 4 Screen Settings Timeout 91 8 E 5 History 91 8 E 6 Restart Touchscreen Recalibrate 92 8 E 7 Factory Reset 92 8 E 8 HMI Model OEM only 92 8 E 9 BI...

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

Page 5: ...1 6 0 0 2 0 0 0 2 5 0 0 3 0 0 0 3 5 0 0 4 0 0 0 X std MGH 75psi PRV H Stamp N MGV w H Stamp 30psi PRV W std MGV 125psi PRV HLW Stamp P MGV w H Stamp 50psi PRV X None H Gateway LONworks A 30psi PRV R M...

Page 6: ...estic hot water use adjust the outlet control limit or use temperature limiting valves to obtain a maximum water temperature of 125 F 52 C WARNING The inlet gas pressure to the unit must not exceed 13...

Page 7: ...mpt any service or repair work involving RCF without wearing the following protective gear 1 A National Institute for Occupational Safety and Health NIOSH approved respirator 2 Long sleeved loose fitt...

Page 8: ...eat Exchanger Air Intake and Filter Water Outlet Water Inlet Vent Power Pack Drain Condensate Trap Gas Supply Main Power Connections Field Electrical Connections Blower Pressure Transmitters On all mo...

Page 9: ...as Pressure Switch Fuel Damper Air Damper High Gas Pressure Switch Pressure Regulator Shut off The Gas Train for all sizes has the same layout These two views of the gas train show the linear path of...

Page 10: ...inches cm 6 15 6 15 100 30 5 6 15 50 15 2 14 36 6 15 8 20 100 30 5 8 20 100 30 5 14 36 2000 8 20 8 20 100 30 5 8 20 100 30 5 14 36 8 20 8 20 100 30 5 8 20 50 15 2 18 46 8 20 10 25 100 30 5 10 25 100...

Page 11: ...izes Gas Valve Touchscreen Display Air Inlet Pressure Relief Valve Water Outlet Water Inlet Model Vent Collar Diameter Air Inlet Collar Diameter Knockdown Height Water Connection 1600 6 15 6 15 60 8 1...

Page 12: ...r kit not included with unit The unit should not be located in an area where leakage of any connections will result in damage to the area adjacent to the unit or to lower floors of the structure When...

Page 13: ...m Front 18 46 24 61 inches cm inches cm inches cm Back 11 28 24 61 12 30 15 38 24 61 Left 4 10 8 20 Right 4 10 8 20 Top 1 2 5 Clearance to Combustibles Suggested Service Clearance 3500 4000 2500 3000...

Page 14: ...he manufacturers and product lines listed in Table 3 and Table 4 have been tested and authorized to safely operate with this equipment Suppliers of stainless steel and polypropylene venting that are n...

Page 15: ...PS E90L 2ZDEx87 PVC Adapter ISSAxxxx Horizontal Termina on bird screen IASPPxx 2 4 IASSSxx 5 12 xPPS BG 2 6 2ZDESx Ver cal Termina on IASPPxx 2 4 IASSSxx 5 12 xPPS VKL 5 xPPS VTML 5 8 2ZDESx Air Inlet...

Page 16: ...screen for unit placed outdoors CA0011904 CA011901 CA011901 CA011902 CA0011903 CA0011903 Vent terminal for unit placed outdoors CA011804 CA011801 CA011801 CA011802 CA011803 CA011803 Table 3 Air Vent...

Page 17: ...Vent Pipe Size Table 9 Vent Air Pipe Diameters 2 C 1 Category lV Vent Sizes Positive pressure vent systems may be either horizontally or vertically vented The vent pipe used must be suitable for posi...

Page 18: ...pendix 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...

Page 19: ...s or spaces that freely communicate with the outdoors When directly communicating with the outdoors or when communicating to the outdoors through vertical ducts each opening shall have a minimum free...

Page 20: ...entilation including air required for comfort and proper working conditions for personnel Refer to the applicable codes 2 D Locating the Vent and Combustion Air Terminals 2 D 1 Side wall Vent Terminal...

Page 21: ...ther than Direct vent 4 ft 1 2m below 36 inches 91 cm to any other unit or to side of opening 1 ft 30 cm above opening K Clearance to a mechanical air supply inlet 3 feet 91 cm above if within 10 feet...

Page 22: ...y of rain water The opening on the end of the terminal must be at least 12 30 cm above the point at which it penetrates the roof and high enough above the roof line to prevent blockage from snow When...

Page 23: ...y of the property owner to secure the services of qualified licensed professionals for installation of hard wired carbon monoxide detectors a In the event that the side wall horizontally vented gas fu...

Page 24: ...g shall be reduced at a rate of 4 percent for each 1000 ft 300 m above sea level This must be considered before selecting the equipment size 2 The gas pressure settings must match fuel type as shown i...

Page 25: ...1 61 2 067 2 469 3 068 4 026 Length ft 10 3 520 6 790 10 800 19 100 39 000 20 2 420 4 660 7 430 13 100 26 800 30 1 940 3 750 5 970 10 600 21 500 40 1 660 3 210 5 110 9 030 18 400 50 1 480 2 840 4 530...

Page 26: ...introduced to the system This brings a constant supply of new minerals into the system as well Minerals can cause scale to form on the inside surfaces of water heater systems heaters tanks pipes valve...

Page 27: ...0 25 177 43 9 21 2500 190 33 7 25 220 46 0 21 3000 190 36 0 30 220 46 0 26 3500 222 30 6 30 266 40 6 25 4000 224 30 0 34 266 41 2 29 Headloss is for heater only no piping Model 1 10 Grains Per Gallon...

Page 28: ...r use in the unit Please refer to the manufacturers instructions for proper selection and application Sentinel Performance Solutions Group 5 A 1 Boiler Water Connections NOTE This unit must be install...

Page 29: ...nd distribution configurations that return the lowest temperature possible to the boiler while still meeting the needs of the system Figure 8 on page 25 through Figure 11 on page 28 show suggested pip...

Page 30: ...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 drawing is a sc...

Page 31: ...one 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 4 pipe dia max No...

Page 32: ...combined water flow of all the boilers High temp space heating zone circuit 4 pipe dia max 4 pipe dia max 4 pipe dia max 4 pipe Dia Max Note This drawing is a schematic representation of a piping sty...

Page 33: ...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 at higher water hardness levels will cause heat exchanger fouling erosion or corr...

Page 34: ...and sparge tube 5 B 4 Freeze Protection If installing outdoors in a location that may experience freezing temperatures precautions must be taken to prevent water in the heat exchanger and condensate...

Page 35: ...odes 5 Factory mounted pumps are sized for a max pipe length of 30 total 6 90 elbows full pipe size 6 CAUTION Pump sizing must be based upon water hardness at job site NOTE This drawing shows suggeste...

Page 36: ...d be the lowest section of the vent pipe Consult local codes for direction on disposal of condensate In some cases code requirements or drain material condensate will need to be neutralized A condensa...

Page 37: ...the U S and with the latest edition of CSA C22 1 Canadian Electrical Code Part 1 in Canada Do not rely on the gas or water piping to ground the metal parts of the unit Plastic pipe or dielectric union...

Page 38: ...its integrated 4 amp resettable fuse On three phase models a step down transformer which is protected using an appropriate din rail mounted circuit breaker generates 120 volt single phase to power th...

Page 39: ...uld be applied at terminal 21 and when the DHW pump is activated would be 7 C Control Panel Layout Lead SYSTEM PUMP AUXILIARY AUXILIARY ALARM BELL ALARM BELL SYSTEM SUPPLY SYSTEM SUPPLY SYSTEM RETURN...

Page 40: ...if connecting an alarm bell use terminals 27 and 28 As this is a dry contact the alarm bell supply voltage is applied at terminal 27 with the alarm bell connected to terminal 28 7 D 3 Temperature Sen...

Page 41: ...ent on the control board Analog BMS functionality is configured using the touch screen Blower this input is factory wired When using a VFD for blower speed control this input provides speed feedback f...

Page 42: ...he cable to avoid ground loop issues If more than two units are cascaded together daisy chain the wiring from unit to unit keeping the cables as short as possible A system supply sensor must be instal...

Page 43: ...OFF ERROR 1 MANUAL RESET HIGH LIMIT 2 PRESSURE SWITCH 3 HIGH GAS PRESSURE SWITCH 4 LOW GAS PRESSURE SWITCH 5 FIELD INTERLOCK 6 SPARE SAFETY CHAIN 7 OUTLET PROBE LOCKOUT 8 OUTLET PROBE DRIFT 9 OUTLET P...

Page 44: ...ked Out 71 U16 Read Lag 3 Firing Rate AI 71 Read Current firing rate 0 100 72 U16 Read Lag 4 State AI 72 Read 0 Not Present 1 Not Available 2 Available 3 Running 4 Locked Out 73 U16 Read Lag 4 Firing...

Page 45: ...HW Set Point AV 21 Read Write 150 S16 Read Write DHW P AV 22 Read Write 151 S16 Read Write DHW I AV 23 Read Write 152 S16 Read Write DHW D AV 24 Read Write 155 S16 Read Write Cascade CH Set Point AV 2...

Page 46: ...tacts Sensor Inputs Dry Input Analog BR R 34 DHW DHW TT 2 TT 2 TT 1 TT 1 0 10VDC BAS 42 40 39 41 Heat Demands 37 38 35 36 O W R R BL O BL O N L 26 OUTDOOR RETURN SUPPLY SYSTEM SYSTEM DHW 29 30 27 28 3...

Page 47: ...R G W BK V W W V TB1 6 2 GND 2 9 BR Y AUTO RESET MANUAL HIGH LIMIT HIGH LIMIT RESET LWCO BR R BK O BR R BK W BR Y 1 HIGH GAS LOW GAS PRESSURE THERMAL PRESSURE FLOW CUTOUT CONDENSATE LEVEL R 13 5 11 3...

Page 48: ...0 29 DHW SYSTEM SYSTEM SUPPLY RETURN OUTDOOR 26 L N O BL O BL R R O W 36 35 38 37 Demands Heat 41 39 40 42 BAS 0 10VDC TT 1 TT 1 TT 2 TT 2 DHW DHW 34 BR R Analog Input Dry Inputs Sensor Contacts Outpu...

Page 49: ...Gas Valves Main Spark 1 7 2 8 Generator 12 PIN CONNECTOR B X6 1 BR X1 14 X1 2 X1 1 X1 3 X1 13 X1 15 X7 1 X7 2 X7 3 X6 2 X6 3 3 4 10 LWCO LWCO Probe W Voltage Supply LWCO X4 14 X4 4 X4 1 X4 11 X4 16 X4...

Page 50: ...1 TITLE FRACTIONS 1 8 WIRE DIAGRAM MGT HIGH VOLTAGE PANEL 110V E23606 H H N N G C B A D G 20AMP BREAKER LINE LOAD 5 4 6 1 2 3 120V 24V Y W BK BL 4 AMP HV LV 5 6 3 2 1 4 3 2 1 4 5 6 TRANSFORMER PH1500...

Page 51: ...L1 L2 G BLOWER L1 BK L2 WIRE COLOR LEGEND BLACK BK BROWN BR RED R A B C D 4 PROPRIETARY TO LAARS HEATING SYSTEMS AND SHALL NOT BE 3 2 BY LAARS HEATING SYSTEMS DWG NO E23751 SH 1 RE SM 5 2 REVISIO REV...

Page 52: ...THIS DOCUMENT AND THE INFORMATION CONTAINED HEREIN ARE PROPRIETARY TO LAARS HEATING SYSTEMS AND SHALL NOT BE REPRODUCED TRANSFERRED TO OTHER DOCUMENTS USED OR DISCLOSED TO OTHERS FOR MANUFACTURING OR...

Page 53: ...H2367100 OLOR LEGEND BK BR R O Y G BL V D C B 4 3 2 THE INFORMATION CONTAINED HEREIN ARE RS HEATING SYSTEMS AND SHALL NOT BE FERRED TO OTHER DOCUMENTS USED OR S FOR MANUFACTURING OR ANY OTHER SPECIFI...

Page 54: ...0010 A B C D 1 2 3 4 4 3 2 1 SCALE NONE INTENDED SIZE SOFTWARE DWG NO B BY LAARS HEATING SYSTEMS CO XR 1 9 17 17 013N RELEASE CHECK DRAFT ECN CHANGE REV REVISIONS RR 1 9 17 E23 PURPOSE EXCEPT AS SPECI...

Page 55: ...REVISIONS REV CHANGE APPR ENGR APPR ECN DRAFT CHECK UPDATED VFD CONNECTIONS A 16 017N AH 2 17 16 APPROVALS DRAFT ENGR UNLESS OTHERWISE SPECIFIED PURPOSE EXCEPT AS SPECIFICALLY AUTHORIZED IN WRITING DI...

Page 56: ...NT A2 VFD PE HIGH VOLTAGE 120V BLOCK FLUE INTAKE SWITCHES BK W GY R GY BL G G HIGH VOLTAGE WIRE C CHART 600 480 L1 P BR L2 V O L3 T Y WIRE CO LEGEN BK B BL BR B G GY O O R V V W Y Y T P NOTES SEE WIRE...

Page 57: ...2 X5 01 3 X5 01 2 X3 02 1 X3 05 1 X5 03 1 X5 03 2 CONTROLLER POWER TB1 GND TB1 120N TB1 120L HEAT DEMAND FROM BOILER CONTROLLER SAFETY CHAIN IS SATISFIED X5 03 4 X3 04 1 X3 04 2 X3 04 3 3 2 1 3 2 X4 1...

Page 58: ...05 1 X5 03 1 X5 03 2 CONTROLLER POWER TB1 GND TB1 120N TB1 120L HEAT DEMAND FROM BOILER CONTROLLER SAFETY CHAIN IS SATISFIED X5 03 4 X3 04 1 X3 04 2 X3 04 3 3 2 1 3 2 X4 19 X4 9 X21 1 X9 1 X3 04 4 X3...

Page 59: ...0N X4 02 3 TB1 120N X3 02 1 X5 02 3 X5 02 2 X5 01 3 X5 01 2 X3 02 1 X3 05 1 X5 03 1 X5 03 2 CONTROLLER POWER TB1 GND TB1 120N TB1 120L HEAT DEMAND FROM BOILER CONTROLLER SAFETY CHAIN IS SATISFIED X5 0...

Page 60: ...2 3 X5 02 2 X5 01 3 X5 01 2 X3 02 1 X3 05 1 X5 03 1 X5 03 2 CONTROLLER POWER TB1 GND TB1 120N TB1 120L HEAT DEMAND FROM BOILER CONTROLLER SAFETY CHAIN IS SATISFIED X5 03 4 X3 04 1 X3 04 2 X3 04 3 3 2...

Page 61: ...R POWER TB1 GND TB1 120N TB1 120L HEAT DEMAND FROM BOILER CONTROLLER SAFETY CHAIN IS SATISFIED X5 03 4 X3 04 1 X3 04 2 X3 04 3 3 2 1 3 2 X4 19 X4 9 X21 1 X9 1 X3 04 4 X3 04 5 LMV BURNER CONTROLLER TRA...

Page 62: ...B1 GND TB1 120N TB1 120L HEAT DEMAND FROM BOILER CONTROLLER SAFETY CHAIN IS SATISFIED X5 03 4 X3 04 1 X3 04 2 X3 04 3 3 2 1 3 2 X4 19 X4 9 X21 1 X9 1 X3 04 4 X3 04 5 LMV BURNER CONTROLLER TRANSMITTER...

Page 63: ...ONTROLLER POWER TB1 GND TB1 120N TB1 120L HEAT DEMAND FROM BOILER CONTROLLER SAFETY CHAIN IS SATISFIED X5 03 4 X3 04 1 X3 04 2 X3 04 3 3 2 1 3 2 X4 19 X4 9 X21 1 X9 1 X3 04 4 X3 04 5 LMV BURNER CONTRO...

Page 64: ...roubleshooting information See Section 8 E on page 89 Messages Will show an Exclamation Point when there is a message Clicking onto the Message icon will take you to the message itself The USB functio...

Page 65: ...s may only allow you to set one or the other while some other screens example pump selection will allow you to select any or all of the options These windows will reflect the allowable ranges of the p...

Page 66: ...changes made during the initial setup and commissioning Be aware that in this level of password protection changes to the configuration setup may result in lock outs or conflicts with your system setu...

Page 67: ...Icon in the lower left portion of the Home Screen 8 C 1 CH CH stands for central heat It is used for space heating demands On the Quick Start Screen touch the CH thermometer icon to navigate to the CH...

Page 68: ...creen The DHW DHW3 Quick Start Screen allows adjustment of the following parameters Enable Disable This allows DHW DHW3 to be enabled disabled The default setting is Enabled Set Point This is the hot...

Page 69: ...imum Outdoor Temperature Minimum Water Temperature The minimum boiler outlet temperature based on the Maximum Outdoor Temperature 8 C 4 Warm Weather Shut Down Warm weather shut down allows the user to...

Page 70: ...e after a heat demand is satisfied that the unit will wait to satisfy the next active heat demand NOTE Anti Short Cycle Time does not apply to DHW DHW3 heat demands 8 C 6 Time Date To navigate to the...

Page 71: ...ntroller allows access to all parameters available based on the access level that is unlocked To navigate to the Configuration Screen touch the Configure Icon in the lower left portion of the Home Scr...

Page 72: ...s one of the heat demands available The CH1 Configuration Screen allows adjustment of the following parameters Ena ble Disable This allows CH1 to be enabled or disabled The default setting is Enabled...

Page 73: ...re Integral Time This value is applied to the sum of the error over a period of time Derivative Time This value is applied to the rate of change of the error 8 D 1 b CH2 DHW1 DHW2 Additional heat dema...

Page 74: ...s only and is not used for domestic water The Outdoor Parameters Screen allows the adjustment of the following parameters Enable Disable Enables and disables the outdoor reset functionality Maximum Ou...

Page 75: ...ure the system for cascade operations These navigation icons are Cascade CH This icon navigates to the setup screen for hydronic boiler cascade operations This icon is available on hydronic boilers MG...

Page 76: ...heater touching this button navigates to the Lead boiler heater settings See Section 8 D 4 a 1 on page 73 Lost Lead Backup Setpoint When configured for Cascade Redundancy Boiler Internal Set Point th...

Page 77: ...period of time Derivative Time This value is applied to the rate of change of the error Off Hysteresis The temperature above the set point Set Point Off Hysteresis at which the controller will stop c...

Page 78: ...creen The Cascade Rotation Screen is a view only screen This screen indicates how many units are connected in a cascade configuration the order in which each unit will run and the percent at which eac...

Page 79: ...unit will assume lead responsibilities Disable Redundancy In a cascade configuration upon loss of communication with the lead unit lag units will no longer satisfy the cascade heat demand 8 D 5 Hybrid...

Page 80: ...ll for heat Always On the pump will run continuously Disable the pump will not turn on upon a DHW heat demand DHW Pump Post Circulation This parameter is the amount of time the DHW pump will continue...

Page 81: ...s the adjustment of the following parameters On Delay Upon a call for heat once the unit ignites this is the amount of time the unit will wait prior to modulating the pump speed Proportional Gain This...

Page 82: ...and resume functionality Delta T Parameters The MIN and MAX Temperature between which your system will modulate Flue Limitation Sets the flue temp limitations Outlet Limitation Parameters Allows for...

Page 83: ...allows adjustment of the following parameters Manual Reset Flue The temperature at which the unit will shut down due to exceeding a flue temperature manual reset condition Flue Temp MIN Flue Temp Max...

Page 84: ...the boiler heater will run The unit of this parameter is so if the value of this parameter is 10000 or 100 00 this equates to 10 0VDC or 20mA Demand Min This is the minimum value that corresponds to t...

Page 85: ...et Point selected the unit will initiate a heat demand once the analog input signal exceeds the Demand On value Once the demand is initiated the analog input signal must be lower than Demand Off to re...

Page 86: ...ceeds the Auto Reset High Limit setting the boiler will shut down and an Auto Reset High Limit condition will appear on the Messages screen Once the outlet temperature decreases below the value of Aut...

Page 87: ...s The higher the number the higher the priority it is assigned Anti short Cycle To navigate to the Anti short Cycle Configuration Screen Warm Weather To navigate to the Warm Weather Configuration Scre...

Page 88: ...ous Features Icon on the Configuration Screen then touch the Anti Short Cycle Icon on the Miscellaneous Features screen The Anti Short Cycle Configuration Screen allows adjustment of the following par...

Page 89: ...mer Kick Period The duration of time between heat demands that the boiler will wait before exercising the boiler DHW and system pumps There are three options for Warm Weather Shutdown WWSD WWSD is onl...

Page 90: ...ddress of the unit on the Modbus network Timeout Upon loss of communication this is the duration of time in which the unit will wait prior to timeout conditions occurring With BACnet protocol selected...

Page 91: ...n the unit s inlet sensor reads the set point minus the hysteresis value It will leave anti frost mode at the set point plus the hysteresis value Hysteresis This parameter is a offset of the Anti Fros...

Page 92: ...e 8 D 12 Login To navigate to the Login Screen touch the Lock Icon on ANY screen The Login Screen allows the operator to make parameter adjustments based on the level of the login credentials See Sect...

Page 93: ...vice Screen touch the Service Icon in the lower left portion of the Home Screen 8 E 1 Burner Navigate to the Burner Screen by touching the Burner Button on the Service Screen SERVICE Available only to...

Page 94: ...indicator light associated with the input is red when the input is not satisfied For example if the blower is off the air proving switch is not satisfied and the air proving switch digital input indi...

Page 95: ...There are two screens associated with the Analog I O Analog I O Inputs Analog I O Outputs Analog I O Input There are three types of analog inputs temperature sensors flame signal and voltage current...

Page 96: ...after user interaction has ceased AutoLock Timeout allows the user to adjust the amount of time the touch screen will remain unlocked with no user interaction 8 E 5 History Navigate to the History Scr...

Page 97: ...7 Factory Reset Touching the Factory Reset Button on the Service Screen resets all touch screen adjustable parameters back to the factory default setting 8 E 8 HMI Model OEM only 8 E 9 BIC Model OEM o...

Page 98: ...ploads all parameters and settings into a thumb drive for documentation purposes or copies these settings from unit to unit Upload Data from the boiler This is used to retrieve runtime data and histor...

Page 99: ...ec on 6 5 Ac ve Demands Ac ve Demand Bar The Ac ve Demand Bar indicates the status of ac ve heat demands A black heat demand icon indicates the heat demand that is currently being sa s ed A greyed out...

Page 100: ...ximum Water Temperature x F C Minimum Water Temperature x F C Address x N A Dynamic Address x N A Lost Lead Backup Setpoint x F C Lag On Hysteresis x F C Lag Off Hysteresis x F C Cascade CH Setpoint x...

Page 101: ...C Delta T Minimum Temperature x F C Delta T Maximum Temperature x F C Delta T Enable Disable x N A Control Mode x N A External Control Priority x N A Maximum Setpoint x F C Minimum Setpoint x F C 40...

Page 102: ...A Light Timeout x x Seconds AutoLock Timeout x x Seconds Enable Pilot Test x N A Enable Disable x N A Trim Set Point x 0 10 Service Screen Settings Pilot Test 0 secs 3600 secs 600 secs 0 secs 3600 se...

Page 103: ...onal Gain x N A Cascade DHW Integral Time x Seconds Cascade DHW Derivative Time x Seconds Cascade DHW Priority x N A Cascade DHW On Hysteresis x F C Cascade DHW Off Hysteresis x F C Cascade DHW Max La...

Page 104: ...imum Firing Rate x Demand Max x Demand Min x Demand On x Demand Off x Input Type x VDC mA Anti Frost Mode x N A Anti Frost Setpoint x F C Hybrid Pump Configuration Variprime NOT Available on Volume Wa...

Page 105: ...able on Volume Water Units Anti Short Cycle Time Temperature Conversion Com Port Options Service Screen Settings 600 secs 0 secs 0 secs 3600 secs 600 secs 0 secs 3600 secs 0 255 127 NA NA NA 300 secs...

Page 106: ...use this unit if any part has been under water Immediately call a qualified service technician to inspect the unit and to replace any part of the control system and any gas control that may have been...

Page 107: ...of gas Wait five minutes and start the unit again 5 If ignition starts normally leave the unit turned on 6 After placing the unit into operation the burner safety shutoff device must be tested a Clos...

Page 108: ...a factory trained technician 1 On the Pressure Regulating Gas Valve locate the main pressure adjustment by removing the brass plug at the top front of the unit See Figure 46 2 Proceed to the Manual F...

Page 109: ...instructions on proper filling and purging 1 Turn off the main electrical disconnect switch 2 Close all manual gas valves 3 Wait five minutes 4 Set the aquastat or thermostat to its lowest setting 5...

Page 110: ...ack to Blower On to retry Four attempts will be made before the LMV will Lockout Once in Lockout a hard reset is required by pressing the Reset Button on the touchscreen If the main flame is not detec...

Page 111: ...genuine manufacturers replacement parts CAUTION When servicing the controls label all wires before disconnecting them Wiring errors can cause improper and dangerous operation Verify proper operation a...

Page 112: ...a new spark assembly in the reverse order replacing the gasket if necessary 11 B 5 Flame Sensor The flame sensor is a single rod system The minimum flame signal that will allow the unit to fire is 0 8...

Page 113: ...rfaces of the heat exchanger tubes 7 Once the tubes 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...

Page 114: ...on on Navigation Bar Check the wiring connections to the switch The wires should be connected to the common and normally open terminals Check reference hose and tubing connected to the pressure switch...

Page 115: ...the reset button on the LWCO module Verify the system is full of water and all air has been purged from the system Check for loose jumpers if the LWCO is not installed Manual Reset High Limit Outlet...

Page 116: ...13 A General Information To order or purchase parts contact your nearest manufacturers dealer or distributor See the back cover of this manual for the manufacturers website Frame and Jacket Assembly...

Page 117: ...Y TOUCH SCREEN 7 IN DIAG HTD SIT RE2389600 RE2389600 RE2389600 RE2389600 RE2389600 RE2389600 5 GENERATOR SPARK IGNITOR SOLID STATE RE2338400 RE2338400 RE2338400 RE2338400 RE2338400 RE2338400 6 TUBING...

Page 118: ...V 50W R30N7103 CALL SALES FOR CORRECT FOUR DIGIT PROGRAM NUMBER ALL SIZES DESCRIPTION PART NO CONTROLLER ASSY O2 SENSOR R30N7089 PANEL ASSY CONTROL MGT R30N7092 TRAY DIAGNOSTIC HANDSET PROJECT 0014 R3...

Page 119: ...B 5 SEE SECTION 12 B 6 SEE SECTION 12 B 6 SEE SECTION 12 B 6 SEE SECTION 12 B 6 6 SIGHT GLASS 1 2 NPT RF0044800 RF0044800 RF0044800 RF0044800 RF0044800 RF0044800 7 BURNER RL2022000 RL2022000 RL202060...

Page 120: ...E IN PILOT TUBE BURNER TOP HOLE DETAIL C FIRST ROW Blower Burner Assembly 2 0 9 6 5 4 2 15 1 10 13 14 11 8 3 9 7 12 00 4 90 13 58 PILOT TUBE MUST SIT FLUSH AGAINST BURNER PILOT TUBE TO BURNER INSIDE O...

Page 121: ...H AGAINST BURNER TOP HOLE IN PILOT TUBE Blower Burner Assembly 2 5 4 0 13 14 6 10 1 8 3 12 15 2 4 5 11 9 7 25 13 5 23 00 FIRST ROW OF SLOTS INSIDE BURNER NOTE PILOT TUBE TO BURNER DETAIL SCALE 1 4 PIL...

Page 122: ...AKER 10AMP RE2372700 RE2372700 RE2372700 6 RELAY 115 VAC DPST RE2311100 RE2311100 RE2311100 7 TRANSFORMER 120 24 CET 75 VA RE2370700 RE2370700 RE2370700 8 TRANSFORMER RE2359300 RE2355900 RE2355500 9 D...

Page 123: ...0 24 CET 75 VA RE2372700 RE2372700 RE2372700 RE2372700 RE2372700 RE2372700 8 TRANSFORMER RE2359300 RE2355900 RE2355500 RE2355500 RE2352600 RE2352600 9 DIN RAIL ASSEMBLY AC DISTRIBUTION BOX R40N7064 R4...

Page 124: ...5001 R40N745002 R40N754003 11 R30N3023 R30N3023 R30N3023 R30N3023 R30N3023 R30N3023 12 R30N3024 R30N3024 R30N3024 R30N3024 R30N3024 R30N3024 13 R30N3028 R30N3028 R30N3028 R30N3028 R30N3028 R30N3028 14...

Page 125: ...2080300 RP2080300 RP2080300 6 Grommet Pipe Rubber RS2114000 RS2114000 RS2114000 RS2114000 RS2114000 RS2114000 Item Description Part Number by Boiler Size 1600 2000 2500 3000 3500 4000 1 Weldment Water...

Page 126: ...RE0013000 Flow Switch Paddle RE2255800 RE2255800 RE2255800 RE2255800 RE2255900 RE2255900 4 Sensor Water Temp 10K 20K RE2392100 RE2392100 RE2392100 RE2392100 RE2392100 RE2392100 5 Grommet Rubber RS2114...

Page 127: ...IES VKG 1 NPT DESCRIPTION RV2025500 PART NO RV2025400 RV2025200 1600 2000 DESCRIPTION PART NO RV2028500 R30N6012 RE0023300 RQ0068472 RQ0068471 TUBE 1 4 FORMED PILOT FEED MGT 1 6 TUBE SENSING GAS TRAIN...

Page 128: ...RE0023300 RQ0068472 RQ0068471 TUBE 1 4 FORMED PILOT FEED MGT 1 6 TUBE SENSING GAS TRAIN MGT 1 6 SWITCH HIGH GAS PRESSURE LOW GAS PRESSURE SWITCH ASSEMBLY VALVE PILOT REGULATOR DUAL SOLENOID VALVE ACTU...

Page 129: ...NPT RV2025500 ACTUATOR ELECTRO HYDRAULIC SKP25 011U1 RV2025400 VALVE BODY SINGLE GAS 1 1 2 NPT HW VGG10 404U RV2025200 VALVE GAS SOLENOID NC SAFETY SHUTOFF 1 1 2 NPT RV2026400 VALVE PILOT REGULATOR DU...

Page 130: ...MagnaTherm Boilers and Water Heaters Notes...

Page 131: ...MagnaTherm Boilers and Water Heaters Notes...

Page 132: ...Y SINGLE GAS 2 1 2 NPT HW VGG10 654U 4 5 6 7 8 9 ACTUATOR ELECTRO HYDRAULIC SKP25 011U1 VALVE GAS SOLENOID NC SAFETY SHUTOFF 2 1 2 NPT VALVE PILOT REGULATOR DUAL SOLENOID LOW GAS PRESSURE SWITCH ASSEM...

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