Weil-McLain 550-141-826/1201 - Manual (Page 40)

SERVICE TECHNICIAN ONLY — read and follow completely.
Figure 30 WGO dimensions — inches (mm) — see Table 9, page 41
Dimensions
Supply
7 3/4
[196.9]
Air vent or
expansion
tank
35 5/8
[904.9]
Return
2 7/16
[61.9]
2 7/16
[61.9]
1 1/8 [28.6]
9 1/2 [241.3]
5 1/16 [128.6]
4 3/8 Dia
[111.1]
Burner
opening
20 1/4
[514.4]
6 1/4
[158.8]
29 9/16
[750.9]
For 7 dia.
[177.8]
Vent pipe
Alternate
return
(“A” boilers
only)
7 Dia.
[177.8]
2 9/16 [65.1]
7 3/16
[182.6]
2 5/8
[66.7]
15 1/2
[393.7]
14
Approx.
B
L
7 Dia
[177.8]
7 Dia
[177.8]
Left side Front
Intermediate Back
14 1/8 [358.8]
Part number 550-141-826/1211 40
GOLD
WGO
OIL-FIRED NATURAL DRAFT WATER BOILER — SERIES 3 —
Boiler Manual