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Part Number 550-141-807/0298

2

LGB

(Series 2) — Control Supplement

I

Installation

1. For use with LGB-6 through 12 boilers.
2. LOCAL INSPECTOR MUST CERTIFY BOILER FOR IRI COMPLIANCE.
3. Assemble pilot burner and flame sensor to main burners with pilot brackets.  See Figures 2

and 3.  Install ground wiring as shown in Figures 2 and 3.

4. Reinstall burner assemblies.  See Table 1 for pilot burner and flame sensor locations.
5. Assemble control panel to boiler.  See Figure 1.
6. Install gas controls as shown in Figure 4, page 4.
7. IRI installations require manual reset controls.  Weil-McLain recommends installing manual

controls in addition to standard as required by local inspector. Refer to the LGB Boiler
Manual, “Boiler Controls” section.
a. Steam boilers require a manual reset Low Water Cutoff and manual reset Pressure Limit

Control.

b. Water boilers require a manual reset Low Water Cutoff and manual reset Temperature

Limit Control.

Front of
Boiler

Panel

Drill (7) 1/8“
Holes In Jacket
to Mount
Bracket

Drill (7) 1/8“
Holes In Jacket
to Mount
Bracket

Drill (3) Holes in Front

Drill (4) Holes in Side

Drill (4) Holes in Side

55BGL

Figure 1

Mount control panel to jacket

as shown

Table 1

Pilot burner and flame sensor

locations

Boiler Model

Flame Sensor *

Pilot Burner *

LGB-6

2

9

LGB-7

2

11

LGB-8

2

13

LGB-9

2

15

LGB-10

2

16

LGB-11

2

16

LGB-12

2

16

* From left burner.

Содержание FLAME GUARDIAN WMBC-1A

Страница 1: ...ds that can cause severe personal injury death or substantial property damage Indicatesspecialinstructionsoninstallation operationormaintenancethat are important but not related to personal injury or...

Страница 2: ...ain recommends installing manual controls in addition to standard as required by local inspector Refer to the LGB Boiler Manual Boiler Controls section a Steam boilers require a manual reset Low Water...

Страница 3: ...WMBC Panel Terminal G2 Ground Terminal Pilot Mounting Bracket 10 32 x 1 4 Machine Screws 2 Main Burner with Pilot Mounting Bracket Compression Union Sensor Lead Burner Support Bar Pilot Line Tubing I...

Страница 4: ...d gas valve w on off actuator 5 Pilot gas pressure regulator 6 Normally open solenoid vent valve 7 Pilot solenoid gas valve 8 Test cock 10 Manual leak checking gas valve 11 Regulating diaphragm gas va...

Страница 5: ...during any pressure test greater than 14 0 inches water column 11 Set gas pressure switches as follows or to local inspector s requirements a Low 3 0 W C b High 14 0 W C II Gas piping Do not check for...

Страница 6: ...Part Number 550 141 807 0298 6 LGB Series2 ControlSupplement Part Number 550 141 807 0298 7 Flame Guardian WMBC 1A Electronic Pilot System IRI Figure 5 WMBC 1A panel wiring schematic...

Страница 7: ...Part Number 550 141 807 0298 8 LGB Series2 ControlSupplement Figure 6 WMBC 1A panel wiring diagram factory wiring...

Страница 8: ...Part Number 550 141 807 0298 9 Flame Guardian WMBC 1A Electronic Pilot System IRI Figure 7 WMBC 1A field wiring diagram...

Страница 9: ...1 2 W C 6 Turn off boiler 7 Remove manometer from manifold and plug the tapping 8 Reconnect the blue wire in the two stage gas valve junction box 9 Turn on electrical power supply and gas supply to b...

Страница 10: ...d trial for main flame Yellow pilot on lamp goes out 6 Main flame sensor proves main burner operation at low fire 7 Flame safeguard control energizes downstream gas valve to high fire through firing r...

Страница 11: ...415 Pilot Burner Honeywell Q179C1009 511 330 181 Pilot Bracket Weil McLain 460 005 624 Main Flame Sensor Honeywell 392956 511 724 274 Main Flame Sensor Bracket Weil McLain 423 300 420 Main Burner with...

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