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OSB
Series 2 Oil-Fired Steam Boilers –
Boiler Manual
Part Number 550-110-772/0816
25
Figure 17 Trim and controls
11 Replacement parts
continued
Item
number
Description
Manufacturer
Manufacturer’s
Part number
Part number
1
Pressure safety valve, ASME, 30 PSIG, ¾ NPT
(Fittings shown are inncluded --- Ell ¾ NPT, Nipple ¾ NPT
Conbraco
Watts
13-511-08
315
511-548-023WT
511-548-023WT
2
Low Water Cutoff, probe type
McDonnell & Miller
Hydrolevel
PS-801-120
45-450
511-114-507WT
511-114-507WT
3
Limit control/gauge assembly, includes:
High limit pressure control
Guage pressure 2-½” Dia.
Siphon, ¼ NPT, 180
°
Brass
Nipple, close ¼ NPT
Tee, ¼ NPT
Elbow ¼ NPT
Honeywell Inc.
Ametek
PA404A1009
P505K
510-312-135WT
510-218-045WT
560-640-698WT
561-326-245WT
561-541-200WT
561-115-335WT
4
Gauge glass assembly, includes:
Guage water glass
Guage glass guards, 10.62”
Guage cock set, Brass
Conbraco
B15
Standard Stem
591-419-194WT
563-334-597WT
510-218-135WT
5
Drain valve, ¾ NPT, 1-½ Shank
, Standard
511-210-423WT
511-246-392WT
6
Tankless temperature control (optional )
10
°
differential; with ¾ well
Honeywell Inc.
L4080B1311
510-312-209WT
not shown Burner harness
591-391-966WT
not shown Pressure control LWCO harness
591-391-912WT
not shown
Balanced draft damper (barometric)
Effikal
Fields Control
ESOC-7
02723101
510-512-267WT
510-512-267WT