Installation, Lgb-6 to lgb-20, Series 2 – control supplement – Weil-McLain LGB-20 User Manual
Page 2
LGB-6 to LGB-20
Series 2 – Control Supplement
2
Part Number 550-141-815/1010
Boiler
Number
Flame Sensor *
Pilot Burner *
Boiler
Number
Flame Sensor *
Pilot Burner *
No. 1
No. 2
No. 1
No. 2
No. 1
No. 2
No. 1
No. 2
LGB-6
2
---
9
---
LGB-14
2
16
13
25
LGB-7
2
---
11
---
LGB-15
2
16
13
27
LGB-8
2
---
13
---
LGB-16
2
18
15
29
LGB-9
2
---
15
---
LGB-17
2
18
15
31
LGB-10
2
---
16
---
LGB-18
2
20
16
33
LGB-11
2
---
16
---
LGB-19
2
20
16
34
LGB-12
2
---
16
---
LGB-20
2
22
16
36
LGB-13
2
1`4
11
23
* From left burner.
Boiler
Number
7.00”
W.C.
Carton
Inlet Pipe Size
5.00”
W.C.
Carton
Inlet Pipe Size
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”
H
1-¼”
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”
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 loca-
tions.
3. Install gas controls and ignition control panel(s) as shown in Table 2, below and Figure
6 (page 12).
Table 1
Pilot burner and flame sensor
locations
Table 2
Gas control arrangement