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Part Number 550-142-300/0520
59
CGa Series 3 Gas-Fired Water Boiler — Boiler Manual
Item
number
Description Part number
1
End section, left hand, 51124 311-103-851
2
End section, right hand 51128 311-103-821
3
Intermediate section, 51127 311-103-845
not shown
Replacement
section
assembly
CGa-25 and CGa-3
CGa-4
CGa-5
CGa-6
CGa-7
CGa-8
321-114-360
321-114-361
321-114-362
321-114-363
321-114-364
321-114-365
not shown
Section replacement kit, includes seals and
sealant for 1 joint
381-354-527
4
Tie rod, 7/16”
without nut
(3 per boiler):
CGa-25 & CGa-3
CGa-4
CGa-5
CGa-6
CGa-7
CGa-8
560-234-500
560-234-501
560-234-502
560-234-503
560-234-504
560-234-505
5
Nut, 7/16” (2 per tie rod) 561-928-235
6
Washer,
7/16”
(1 per tie rod) 562-248-684
7
Radiation plate CGa 25 & 3
460-003-018
(1 per joint) CGa 4-8
460-003-017
8
Collector hood
CGa-25
CGa-3
CGa-4
CGa-5
CGa-6
CGa-7
CGa-8
381-354-625
381-354-626
381-354-627
381-354-628
381-354-926
381-354-630
381-354-631
Item
number
Description Part number
9 Temperature/LWCO sensor 511-724-305
10 Draft hood
CGa-25
CGa-3
CGa-4
CGa-5
CGa-6
CGa-7
CGa-8
450-021-240
450-021-241
450-021-242
450-021-243
450-021-244
450-021-245
450-021-246
11
Spill switch (210°F)
CGa-25 - 8
510-300-013
12 Vent Damper
CGa-25 & 3 4”
CGa-4 5”
CGa-5 & 6 6”
CGa-7 & 8 7”
381-800-474
381-800-475
381-800-476
381-800-477
13 Vent Damper Actuator 510-512-337
14 Vent Damper Harness 591-391-795
Figure 31 Section assembly, flue collector, draft hood and vent damper
Replacement parts — section assembly12b
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