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GSA
Gas-Fired Steam Boilers –
Boiler Manual
26
Part Number 550-110-738/1012
10 Replacement parts
continued
Figure 20
Section assembly, flue collector, draft hood, vent damper and base assembly
Item
number
Description
Part number
1
Draft hood
GSA-075
GSA-100
GSA-125
GSA-150
GSA-175
GSA-200
GSA-250
GSA-300
450-021-255WT
450-021-256WT
450-021-257WT
450-021-258WT
450-021-259WT
450-021-260WT
450-021-261WT
450-021-262WT
Base insulation kit: Consists of items 3 and 13.
510-811-660WT
2
End section, left hand, 1813
311-800-007WT
3
Back base panel insulation (in Base insulation kit)
4
Back base panel
GSA-075 & GSA-100
GSA-125 & GSA-150
GSA-175 & GSA-200
GSA-250
GSA-300
451-800-010WT
451-800-011WT
451-800-012WT
451-800-013WT
451-800-014WT
5
Back base channel
GSA-075 & GSA-100
GSA-125 & GSA-150
GSA-175 & GSA-200
GSA-250 & GSA-300
451-800-020WT
451-800-021WT
451-800-022WT
451-800-023WT
6
Front base panel
GSA-075 & GSA-100
GSA-125 & GSA-150
GSA-175 & GSA-200
GSA-250
GSA-300
451-800-000WT
451-800-001WT
451-800-002WT
451-800-003WT
451-800-004WT
7
Back burner support
GSA-075
GSA-100
GSA-125
GSA-150
GSA-175
GSA-200
GSA-250
GSA-300
451-800-085WT
451-800-086WT
451-800-087WT
451-800-088WT
451-800-089WT
451-800-090WT
451-800-092WT
451-800-095WT
8
Burner pan side rail
451-800-070WT
9
Collector hood
GSA-075 & GSA-100
GSA-125 & GSA-150
GSA-175 & GSA-200
GSA-250
GSA-300
450-014-733WT
450-014-734WT
450-014-735WT
450-014-736WT
450-014-737WT
Section replacement kit (Consists of:
r
ope
glass
and 1 each 3" and 6" square cut seals)
381-800-100WT
10
End section, right hand, 18118
311-800-029WT
11
Intermediate section, 1815
311-800-010WT
Item
number
Description
Part number
12
Tie rod,
1
/
2
"
GSA-075 & GSA-100
GSA-125 & GSA-150
GSA-175 & GSA-200
GSA-250
GSA-300
560-234-470WT
560-234-475WT
560-234-480WT
560-234-485WT
560-234-490WT
13
Front base panel insulation (in Base insulation kit)
14
Base access panel
GSA-075 & GSA-100
GSA-125 & GSA-150
GSA-175
GSA-200
GSA-250
GSA-300
451-800-040WT
451-800-041WT
451-800-039WT
451-800-042WT
451-800-043WT
451-800-044WT
15
Burner Regular
Burner Assembly with pilot bracket
(GSA-075N-I thru GSA-250N-I)
Burner Assembly with slot and pilot bracket
(GSA-075N-S thru GSA-250N-S)
512-200-000WT
512-200-001WT
512-200-002WT
16
Gas valve — see “Gas controls” table on page 33
17
Main burner orifice — Natural gas
Main burner orifice — Propane gas
560-528-987WT
560-528-988WT
18
Burner manifold
GSA-075
GSA-100
GSA-125
GSA-150
GSA-175
GSA-200
GSA-250
GSA-300
591-125-533WT
591-125-538WT
591-125-534WT
591-125-539WT
591-125-535WT
591-125-540WT
591-125-541WT
591-125-542WT
19
Pilot burner assembly — see “Gas controls” table on page 33
20
Spill switch
510-300-013WT
21
Rollout thermal fuse element
512-050-230WT
22
Vent damper
5"
(GSA-075 thru 100)
6"
(GSA-125 thru 150)
7"
(GSA-175 thru 200)
8"
(GSA-250 &
300
)
381-800-475WT
381-800-476WT
381-800-477WT
381-800-478WT
23
Vent damper actuator
only with vent
damper above
24
Vent damper harness
591-391-795WT
The boiler contains ceramic fiber and fiberglass materials. Use care when handling these materials per instructions on
page 25 of this manual. Failure to comply could result in severe personal injury.