'. V *
1
B
A
C
Burner Cut-Off Level is 1V2"Below
Center Line on 51-2 and 51-S-2 Controls
(23/4" Below Normal Water Line)
Feeder Closing Level
(Mark on Castingj
J Normal Water Line
Control
Center
Line
LWCO Intermediate
Section (
E B
f
/
Install 1" Blowdown Valve
y_Bo!le[ Foundation
SUGGESTED FITTINGS LIST
A 1" Cross D 1" x 4" Nipple G 1" x 12" Nipple
B 1"GroundJointUnion E l"x4"Nipple H 1"x61/2"Nipple
C 1" Plug F I" x _' Nipple d 1" x 19" Nipple
Always use a pump control and boiler feed system
The connected fittings shown on this drawing are
to be supplied by the installer.
Figure 34: Optional Feeder/Low Water Cutoff, Type 51-2
37