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MagnaTherm Boilers and Water Heaters

Page 53

9.7.18   Lead Lag Master Configuration

Then set up the Master controller by going to the Lead 

Lag Master boiler and opening up the Lead Lag Master 

Configuration in that boilers Configuration Menu. 

Select Master Enable

Select OK and then Back out to the Main Menu. 

 

Wiring Connections for Lead/Lag -

  now you can make the Modbus wiring connections 

between the units.  The controller in each boiler 

includes two wiring terminals for the Modbus system, 

labeled “MB1” and “MB2.”  MB1 has the wiring 

connections to the User interface display on each 

unit, and MB2 is used to communicate with the other 

boilers in the Lead/Lag system.  

  To reach the controller, open the cabinet of the boiler 

by turning the door lock and then opening the doors. 

  The wiring from the controller on the first boiler runs 

to the controller on the next boiler. Use 22 AwG or 

thicker shielded twisted-pair wire with drain. Two 

twisted pairs or three conductors are needed.  wire A 

on MB2 of Boiler 1 must be connected to A on MB2 

of Boiler 2, wire B on Boiler 1 goes to B on Boiler 

2, and wire c on Boiler 1 goes to c on Boiler 2.  

Repeat this wiring for any other boilers in the system.  

connect all of the drain wires and ground the drain 

wire on one end of the assembly only.

SECTION 9.8 - Parameter Defaults & Ranges

Config Group

CH Config- Central Heat
CH Config- Central 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- Modulation

CH Config- Modulation
CH Config- Modulation
CH Config- Modulation

Outdoor Reset Config
Outdoor Reset Config
Outdoor Reset Config
Outdoor Reset Config
Outdoor Reset Config

DHW Config

DHW Config

DHW Config

DHW Config

DHW Config
DHW Config
DHW Config
DHW Config
DHW Config

DHW Config

DHW Config

DHW Config
DHW Config
DHW Config

Config Group

Warm Weather Shutdown Config

Warm Weather Shutdown Config

Demand Priority Config 

Demand Priority Config 

Modulation Config
Modulation Config
Modulation Config

Pump Config- Boiler Pump
Pump Config- Boiler Pump
Pump Config- Boiler Pump
Pump Config- Boiler Pump
Pump Config- Boiler Pump

Pump Config- DHW Pump
Pump Config- DHW Pump
Pump Config- DHW Pump
Pump Config- DHW Pump
Pump Config- DHW Pump

Pump Config- System Pump
Pump Config- System Pump
Pump Config- System Pump
Pump Config- System Pump
Pump Config- System Pump

High Limits

Delta T Limits
Delta T Limits

Delta T Limits

Delta T Limits

Frost Protection Config
Frost Protection Config
Frost Protection Config
Frost Protection Config

Burner Control Ignition

System Config

System Config
System Config
System Config
System Config

Sensor Config

Config Group

Lead Lag Slave Config

Lead Lag Slave Config

Lead Lag Slave Config
Lead Lag Slave Config

Lead Lag Master Config
Lead Lag Master Config
Lead Lag Master Config
Lead Lag Master Config
Lead Lag Master Config

Lead Lag Master Config-

Adv Settings - Central Heat

Lead Lag Master Config-

Adv Settings - Central Heat

Lead Lag Master Config-

Adv Settings - Central Heat

Lead Lag Master Config-

Adv Settings - Central Heat

Lead Lag Master Config-

Adv Settings - Central Heat

Lead Lag Master Config-

Adv Settings - Central Heat

Lead Lag Master Config-

Advanced Settings - DHW

Lead Lag Master Config-

Advanced Settings - DHW

Lead Lag Master Config-

Advanced Settings - DHW

Lead Lag Master Config-

Advanced Settings - DHW

Lead Lag Master Config-

Advanced Settings - DHW

Lead Lag Master Config-

Advanced Settings - DHW

Lead Lag Master Config-

Adv Settings - Frost Protect

Lead Lag Master Config-

Adv Settings - Frost Protect

Lead Lag Master Config-

Adv Settings- WWSD

Lead Lag Master Config-

Adv Settings- WWSD

Lead Lag Master Config-

Adv Settings-Algorithms

Lead Lag Master Config-

Adv Settings-Algorithms

Lead Lag Master Config-

Adv Settings-Algorithms

Lead Lag Master Config-

Adv Settings-Rate Allocation

Config Group

Lead Lag Master Config-

Adv Settings - Outdoor Reset

Lead Lag Master Config-

Adv Settings - Outdoor Reset

Lead Lag Master Config-

Adv Settings - Outdoor Reset

Lead Lag Master Config-

Adv Settings - Outdoor Reset

Lead Lag Master Config-

Adv Settings - Outdoor Reset

Lead Lag Master Config-

Adv Settings - Outdoor Reset

Lead Lag Master Config-

Adv Settings - Outdoor Reset

Lead Lag Master Config-

Adv Settings - Outdoor Reset

Lead Lag Master Config-

Adv Settings-Add Stage

Lead Lag Master Config-

Adv Settings-Add Stage

Lead Lag Master Config-

Adv Settings-Add Stage

Lead Lag Master Config-

Adv Settings-Add Stage

Lead Lag Master Config-

Adv Settings-Add Stage

Lead Lag Master Config-

Adv Settings-Drop Stage

Lead Lag Master Config-

Adv Settings-Drop Stage

Lead Lag Master Config-

Adv Settings-Drop Stage

Lead Lag Master Config-

Adv Settings-Drop Stage

Lead Lag Master Config-

Adv Settings-Drop Stage

Lead Lag Master Config-

Adv Settings-Drop Stage

Lead Lag Master Config-

Adv Settings-Drop Stage

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-Modulation

Lead Lag Master Config-

Adv Settings-Modulation

10

0

0-100

0-100

5F

20

2F - 30F

0-100

Parameter Name

Default 

Available settings or Ranges

Enable / Disable

210F

10F

50F - 210F

0F - 30F

0 min 2 sec

Disabled

0 min 0 sec - 15 min 0 sec

All Boilers Off

Drop Lead Boiler on Error Threshold

2F

20%

0F - 50F

0% - 100%

Error Threshold

0 min 2 sec

Error Threshold

Firing Rate Threshold

Disable

0 min 0 sec - 15 min 0 sec

20%

5 min 0 sec

0% - 100%

0 min 0 sec - 120 min 0 sec

0 min 15 sec

5F

0 min 15 sec - 240 min 0 sec

0F - 50F

Error Threshold

20% - 100%

Error Threshold

Firing Rate Threshold

Disable

Measured Run Time

168 hrs 0 min 0 sec

(7 days)

Sequence Order

Measured Run Time

0 min 0 sec - 1080 hrs 0 min 0 sec

95F

Measured Run Time

35F - 140F

Sequence Order

Measured Run Time

200F

Shutdown Immediately

40F - 200F

Shutdown Immediately

Disabled

240 min or (4 Hrs)

0F

15 min 0 sec - 600 min 0 sec

0F - 50F

120F

120F

40F - 160F

40F - 190F

65%

65F

40F

40F - 150F

-40F - 90F

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 Priority Time

Drop After Priority Time

0 min 0 sec - 1092 min 0 sec

120F

100F

40F - 195F

40F - 195F

140F

Disabled

50F - 200F

STAT Terminal

DHW (S6) Sensor Shorted

Disabled

130F

120F

40F - 200F

40F - 195F

Local

150F

Local

S2 (J8-6) 4-20 mA

40F - 200F

100F

STAT Terminal

40F - 195F

STAT Terminal

Modulation Sensor

Disable

130F
120F

40F - 200F
40F - 195F

Disabled

150F

Enable / Disable

40F - 200F

0
2

0-8

1-250

Disabled

Equalize Run Time

Enable / Disable

Equalize Run Time

Use First

Use Last

0 min 0 sec

S5 (j8-11) Sensor

0 min 0 sec - 10 min 0 sec

S5 (J8-11) Sensor

EnviraCOM Outdoor Sensor

Unconfigured

0 min 0 sec

0 min 20 sec

0 min 0 sec - 5 min 0 sec
0 min 0 sec - 5 min 0 sec

Fahrenheit - F

1 min 0 sec

Fahrenheit - F

Celsius - C

0 min 0 sec - 15 min 0 sec

0%

Off

0% - 100%

On \ Off

Enabled
Enabled

Enable / Disable
Enable / Disable

5

Enabled

1-10

Enable / Disable

1 min 0 sec

Recycle & Delay

1 min 0 sec - 60 min 0 sec

Recycle & Delay

Recycle & Delay with Retry Limit

Lockout

195F

60F

100F - 210F

10F - 70F

checked

not checked

Check Box
Check Box

0 min 10 sec

checked

0 min 0 sec - 15 min 0 sec

Check Box

not checked

Auto

Check Box

Auto \ On

checked
checked

Check Box
Check Box

Auto

0 min 10 sec

Auto \ On

0 min 0 sec - 15 min 0 sec

checked

not checked

Check Box
Check Box

5 min 0 sec

checked

0 min 0 sec - 15 min 0 sec

Check Box

25%
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 Immediately

Disabled

35F - 140F

10

0

0-100
0-100

Available settings or Ranges

Default 

DHW > Lead Lag

20

DHW > Lead Lag

Lead Lag > DHW

0-100

240 min or (4 Hrs)

DHW > CH

0 min 0 sec - 1092 min 0 sec

CH > DHW

DHW > CH

10F

5F

2F - 30F
2F - 30F

60F

120F

40F - 200F
40F - 200F

Drop After Priority Time

Auto:DHW (S6) or Outlet 

Only

Boost During Priority Time

Drop After Priority Time

DHW Sensor

Outlet Sensor

Inlet Sensor

Auto: DHW (S6) or Inlet Sensor

Auto: DHW (S6) or Outlet Sensor

Enabled

Auto:DHW (S6) or 

Sensor Only

Enable / Disable

Sensor Only

STAT Terminal

Auto: DHW (S6) or EnviroCOM DHW

Auto: DHW (S6) or Sensor only

DHW Sensor with On/Off Temperatures

120F

40F

40F - 200F
40F - 180F

65F

0

-40F - 120F
-40F - 100F

0

Disabled

0-100

Disable / Enable

0-100

Outlet

Local

Outlet

Inlet

S5 (J8-11) sensor

None

Local

S2 (J8-6) 4-20 mA with Sensor on/off

S2 (J8-6) 4-20 mA with Burner on/off

120F
140F

40F- 200F
40F- 200F

All Boilers Off Threshold

Off Hysteresis

On Hysteresis

P Gain

I Gain

D Gain

Enable

STAT Terminal

STAT Terminal / Sensor Only

10F
15F

2F- 30F
2F- 30F

140 F
140 F

40F- 200F
40F- 200F

No

Local

YES / NO

Local / S2 (J8-6) 4-20 mA

20
10

0-100

Method 1

Detection Time 1

Error Threshold

Rate Offset

Interstage Delay

Boiler Off Option

Base Load Common 

Method 1

 Detection Time 1

Error Threshold

Rate Offset

Interstage Delay

Outdoor Boost Maximum Off Point

Enable

Setpoint

Lead Selection Method

Lag Selection Method

Lead Rotation Time

Maximum Outdoor Temperature

Minimum Outdoor Temperature

Low Water Temperature

Minimum Boiler Water Temp

Outdoor Boost Time

Outdoor Boost Step

Priority Method

DHW Priority Override Time

DHW Has Priority Over CH?

Enable

Frost Protection Rate

Enable

Time of Day Setpoint

4 mA Water Temperature

20 mA Water Temperature

Demand Switch

Setpoint

Time of Day Setpoint

CH Time of Day Setpoint

DHW Setpoint

DHW Time of Day Setpoint

Demand Switch

Setpoint Source

Setpoint

Slave Enable

Slave Mode

Slave Sequence Order

Modbus Address 

Master Enable

CH Setpoint

Temperature Units

Anti- Short Cycle Time

Low Fire Cutoff Time

Burner Off Inhibit Time

Alarm Silence Time

Outdoor Temperature Source

Delta T Retry Limit

CH Frost Protection Enable

DHW Frost Protection Enable

Lead Lag Frost Protection Enable

Lead Lag Frost Protection Rate

Pilot Test Hold

Outlet High Limit Setpoint

Delta T inlet/outlet degrees

Delta T Delay

Delta T Response

Use for Local Demands

Use for Lead Lag Master Demands

Use for Delayed Overrun

Pump Control

Overrun Time

Use for Local Demands

Overrun Time

Local Loops

Lead Lag

CH Maximum Modulation Rate

DHW Maximum Modulation Rate

Minimum Modulation Rate

Pump Control

Use for Lead Lag Master Demands

Use for Delayed Overrun

On Hysteresis

DHW Priority Override Time

DHW Priority vs CH

Parameter Name

Overrun Time

Use for Local Demands

Use for Lead Lag Master Demands

Use for Delayed Overrun

Pump Control

CH Enable

Demand Switch

CH has Priority over Lead Lag

Setpoint Source

Setpoint  

Time of Day Setpoint

Low Water Temperature

Minimum Boiler Water Temp

DHW Enable

P Gain

I Gain

D Gain

Enable

Maximum Outdoor Temperature

Minimum Outdoor Temperature

Parameter Name

Available settings or Ranges

Default 

Parameter Name

Available settings or Ranges

Default 

Off Hysteresis

On Hysteresis

4 mA Water Temperature

20 mA Water Temperature

Modulation Sensor

Modulation Rate Source

Demand Switch

Priority Method

Modulation Sensor

DHW Priority vs Lead Lag

P Gain

I Gain

D Gain

Warm Weather Shutdown Enable

Warm Weather Shutdown Setpoint

Setpoint

Time of Day Setpoint

Off Hysteresis

9.8    Parameter Defaults and ranges

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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