Part number 550-141-825/1211
41
GOLD
WTGO
OIL-FIRED NATURAL DRAFT WATER BOILER — SERIES 3 —
Boiler Manual
SERVICE TECHNICIAN ONLY — read and follow completely.
Figure 31
WTGO dimensions — inches (mm)
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]
Boiler model
WTGO-3L
WTGO-3
WTGO-4
WTGO-5
WTGO-6
WTGO-7
WTGO-8
WTGO-9
B
inches
13
1
/
2
13
1
/
2
13
5
/
8
16
7
/
8
20
23
1
/
8
26
1
/
4
29
3
/
8
mm
342.9
342.9
345.9
428.7
508
587.2
666.7
746.2
L
inches
13
3
/
4
16
7
/
8
16
7
/
8
20
22
1
/
8
26
1
/
4
29
3
/
8
32
1
/
2
mm
349.2
428.7
428.7
508
587.2
666.7
746.2
825.5
