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2
LGB-6 to LGB-23
Series 2 – Control Supplement
Part Number 550-141-916/0304
1. Assemble pilot burner and flame sensor to main burners with pilot brackets. See Figures 1
and 2 (page 3). Install ground wiring as shown in Figures 1 and 2 (page 3).
2. Reinstall burner assemblies. See Table 1, below for pilot burner and flame sensor locations.
3. Install gas controls and ignition control panel as shown in Table 2, below and Figure 5 on
page 10.
4. LGB-21 through LGB-23 require High Gas Pressure Switch Control Carton - 7" and 5" W.C.
Attach pressure switch to interior jacket panel. See Figure 5 on page 10.
5. Canada only - mount rating plate on interior jacket panel.
Table 1
Pilot burner and flame sensor
locations
Table 2
Gas control arrangement
No. 1 No. 2 No. 1 No. 2 No. 1 No. 2 No. 1 No. 2
LGB-6 2--9--LGB-15 2161327
LGB-7 2--11--LGB-16 2181529
LGB-8 2--13--LGB-17 2181531
LGB-9 2--15--LGB-18 2201633
LGB-10 2--16--LGB-19 2201634
LGB-11 2--16--LGB-20 2221636
LGB-12 2--16--LGB-21 2221636
LGB-13 2141123LGB-22 2241638
LGB-14 2161325LGB-23 2241638
* From left burner
Flame Sensor* Pilot Burner*
Boiler
Model
Number
Boiler
Model
Number
Flame Sensor* Pilot Burner*
Left base Right base Left base Right base
LGB-6 A and B 1" -- A and B 1 ¼" --
LGB-7 A and B 1" -- A and B 1 ¼" --
LGB-8 C and D 1" -- C and D 1 ¼" --
LGB-9 C and D 1" -- C and D 1 ¼" --
LGB-10 E, F and G 1 ¼" -- E 1 ½" --
LGB-11 E, F and G 1 ¼" -- F and G 2" --
LGB-12 E, F and G 1 ¼" -- F and G 2" --
LGB-13 H 1"1"H1 ¼"1 ¼"
LGB-14 I 1"1"I 1 ¼"1 ¼"
LGB-15 J 1"1"J 1 ¼"1 ¼"
LGB-16 J 1"1"J 1 ¼"1 ¼"
LGB-17 J 1"1"J 1 ¼"1 ¼"
LGB-18 K 1 ¼" 1" K 1 ½" 1 ¼"
LGB-19 L 1 ¼" 1 ¼" M 1 ½" 1 ½"
LGB-20 L 1 ¼" 1 ¼" N 2" 1 ½"
LGB-21 L1 ¼"1 ¼"O2"2"
LGB-22 L1 ¼"1 ¼"O2"2"
LGB-23 L1 ¼"1 ¼"O2"2"
Inlet Pipe Size
Boiler
Model
Number
7"
W.C.
Carton
Inlet Pipe Size
5"
W.C.
Carton
I Installation