Replacement parts
Fig.
No.
Part no.
Description
Mfr.
Mfr. part no.
1
560-640-698
Syphon, 180° Bend,
1/4
" brass pipe
2a
511-548-023
Steam relief valve, set to relieve at 15 P.S.I.G.,
3/4
" N.P.T. inlet
3/4
" N.P.T.
side outlet, 300 lbs./hr steam capacity
Watts
315
2b
Steam relief valve, set to relieve at 15 P.S.I.G.,
3/4
" N.P.T. male inlet
3/4
"
N.P.T. female side outlet, 407 lbs./hr steam capacity
Conbraco
13-511-08
3
510-218-045
Steam pressure gauge, 0-30 P.S.I.G.
Ametek
PSOSK
4
510-218-135
Gauge cock set, B15, standard stem
Conbraco
20-205-03B15
5
383-600-001
Gauge glass kit, includes glass, gaskets and brass washers
Weil-McLain
6
563-334-597
Water gauge glass guard, 10
5/8
" long
Weil-McLain
7
510-312-135
High pressure limit control, operating range 0.5-9 P.S.I., additive
differential 1-5 P.S.I.
Honeywell
PA404A1009
High pressure limit control, operating range 0-15 P.S.I., differential 2-8
P.S.I.
Johnson
Controls
P-47AA-25D
8
510-312-209
High temperature limit control, spst, automatic recycle with
3/4
" well (used
in tankless heater kit)
Honeywell
L4080B131
High temperature limit control, spst, automatic recycle with
3/4
" well (used
in tankless heater kit)
White-Rogers
11B83-16
9
511-114-495
Low water cutoff, float type
McDonnell-
Miller
67W-2
10
511-100-007
Low water cutoff, probe type
Hydrolevel
45-469-1560
11
511-210-423
Drain cock,
3/4
", 1
1/2
" shank
Conbraco
31-606-01
511-246-392
Drain cock,
3/4
"
Hammond
710
Drain cock,
3/4
"
Watts
BD2C
Drain cock,
3/4
"
Matco-Norca
Drain cock,
3/4
"
Nibco
#74
12
510-512-267
Balanced draft damper (barometric) 7"
Effikal
ESOC
13
591-391-848
Junction box wiring harness assembly (A & B only)
Weil-McLain
14
591-391-854
Junction box cover assembly with service switch
Weil-McLain
15
591-391-850
Burner harness assembly
Weil-McLain
16
591-391-837
SGO water harness
Weil-McLain
17
510-311-024
Limit control without well, spdt (for tankless heater)
Honeywell
L6006A1251
18
591-391-842
Junction box-wiring harness assembly (S-GO float low water cutoff only
- packaged only)
Weil-McLain
19
591-391-965
Junction box-wiring harness assembly (S-GO probe low water cutoff only
- packaged only)
Weil-McLain
20
426-700-268
(Not shown) Flue pipe brackets (requires 2 of this item)
Weil-McLain
21
590-921-903
(Not shown) Tankless Heater - steam boiler, includes heater, gasket, nuts
and studs. For SGO-3 thru 9
Heat Transfer
Products
35-S-29
Table 9
Series 3 trim parts
Part number 550-141-829/1211
40
GOLD
SGO
OIL-FIRED NATURAL DRAFT STEAM BOILER — SERIES 3 —
Boiler Manual
SERVICE TECHNICIAN ONLY — read and follow completely.