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GB300 BOILER INSTALLATION AND OPERATION INSTRUCTIONS
Page 50
41 Cast Iron Section, Left Side 3651 1 1 1 11111111111111
42 Gasket, Upper Port 60248 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20
Gasket, Lower Port 60249 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20
— 3/8" Rope, 42" length 71601 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20
44 Draw Rod 1/2" x 7-1/2" 60358 12 15 18 21 24 27 30 33 36 39 42 45 48 51 54 57 60
45 1/2 Flat Washer 62098 12 15 18 21 24 27 30 33 36 39 42 45 48 51 54 57 60
46 1/2 Hex Nut 60875 24 30 36 42 48 54 60 66 72 78 84 90 96 102 108 114 120
48 Cleanout Cover 69696 1 2 1 24321
69697 1 1 2 1 1234
69698 1 1 2 1
69699 1 1 2 1
49 Cleanout Cover Insulation 65135 1 2 1 24321
65136 1 1 2 1 1234
65137 1 1 2 1
65138 1 1 2 1
50 Cleanout Cover Hardware Set 72695 1 1 2221 244442
Cleanout Cover Hardware Set 72696 1 1 12221 2
Water Controls & Trim
52 Temperature Pressure Gauge 60265 1 1 1 11111111111111
53 Aquastat L4006A 50511 1 1 1 11111111111111
Well 3/4" x 3" 50502
Aquastat, (manual reset) L4006E 50507 1 1 1 11111111111111
54 3/4" x 1" Relief Valve 40#, (water) 61997 1 1 1 1111111
1" x 1-1/4" Relief Valve 40#, (water) 61998 111111
1-1/4" x 1 1/2" Relief Valve 40#, (water)
61999 1
Steam Controls & Trim
54 1" x 1" Relief Valve 15#, (steam) 61982 1 1 1 1 1
1-1/4" x 1-1/2" Relief Valve 15#, (steam)
61983 1111111
1-1/2" x 2" Relief Valve 15#, (steam) 61984 11111
55 Steam Pressuretrol PA404A-1009 50493 1 1 1 11111111111111
56
L4079B-1033 Steam Pressuretrol, (manual reset)
50495 1 1 1 11111111111111
— Steam Gauge 60268 1 1 1 11111111111111
58 Gauge Glass Set 61931 1 1 1 11111111111111
59 M&M 67-S-2 Low Water Cut-off 51005 1 1 1 11111111111111
Number of Sections with Item Quantities Below
Ref # Name of Part Part # 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21