Installation - Weil-McLain LGB LGB-23 User Manual

Table 1
Pilot burner and flame sensor
locations
Table 2
Gas control arrangement
2
LGB-6 to LGB-23
I

Installation

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.
Boiler
Flame Sensor*
Model
No. 1
Number
LGB-6 2
LGB-7 2
LGB-8 2
LGB-9 2
LGB-10 2
LGB-11 2
LGB-12 2
LGB-13 2
LGB-14 2
* From left burner
Boiler 7"
Model W.C.
Number Carton
LGB-6 A and B
LGB-7 A and B
LGB-8 C and D
LGB-9 C and D
LGB-10 E, F and G
LGB-11 E, F and G
LGB-12 E, F and G
LGB-13 H
LGB-14 I
LGB-15 J
LGB-16 J
LGB-17 J
LGB-18 K
LGB-19 L
LGB-20 L
LGB-21 L
LGB-22 L
LGB-23 L
Series 2 – Control Supplement
Boiler
Pilot Burner*
Model
No. 2 No. 1 No. 2
Number
-- 9 -- LGB-15
-- 11 -- LGB-16
-- 13 -- LGB-17
-- 15 -- LGB-18
-- 16 -- LGB-19
-- 16 -- LGB-20
-- 16 -- LGB-21
14 11 23 LGB-22
16 13 25 LGB-23
Inlet Pipe Size
Left base Right base
1" --
1" --
1" --
1" --
1 ¼" --
1 ¼" --
1 ¼" --
1" 1"
1" 1"
1" 1"
1" 1"
1" 1"
1 ¼" 1"
1 ¼" 1 ¼"
1 ¼" 1 ¼"
1 ¼" 1 ¼"
1 ¼" 1 ¼"
1 ¼" 1 ¼"
Flame Sensor* Pilot Burner*
No. 1 No. 2 No. 1
2 16 13
2 18 15
2 18 15
2 20 16
2 20 16
2 22 16
2 22 16
2 24 16
2 24 16
5"
Inlet Pipe Size
W.C.
Carton
Left base Right base
A and B 1 ¼" --
A and B 1 ¼" --
C and D 1 ¼" --
C and D 1 ¼" --
E 1 ½" --
F and G 2" --
F and G 2" --
H 1 ¼" 1 ¼"
I 1 ¼" 1 ¼"
J 1 ¼" 1 ¼"
J 1 ¼" 1 ¼"
J 1 ¼" 1 ¼"
K 1 ½" 1 ¼"
M 1 ½" 1 ½"
N 2" 1 ½"
O 2" 2"
O 2" 2"
O 2" 2"
Part Number 550-141-916/0304
No. 2
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