
Model G3B Gas burner — Instruction manual
MNG3B Gas 041015
22
9. Replacement parts
Item
number
Description
Part
number
1
Air Inlet Tube Assembly
50823
2
Air Throttle
50757
3
G3B Orifice, No. 33 drill (.113 dia.), Propane 60,000 BTUH, drill open for other rates
60582
4
Orifice Nipple
61663
5
Gas Valve, dual, 24-volt (1/2” X 1/2” LH-outlet)
41053
6
Gasket, mounting flange
40287
7
Air Tube/Flange Assembly, 3-3/4 ID Flame Ring
G3B 6”, overall length approx. 9-7/8”
G3B 9”, overall length approx. 12-7/8”
G3B 12”,overall length approx. 15-7/8”
Not
Field
Replaceable
8
Air Tube Housing Clamp (2 required)
50807
9
Flameholder
57117
10
Ignition Tube Assembly with gasket
6”, overall length approx. 10-9/16”
9”, overall length approx. 13-9/16”
12”, overall length approx. 16-9/16”
97875
97876
97877
11
Gasket, motor mounting ring & air tube back plate (2 required)
40402
12
Electrode Hold-in
54858
13
Insulator Tube (2 required)
74617
14
Hot Surface Ignitor, NORTON 120-volt, 5-3/8” OAL
87197S
15
Gasket, ignitor assembly
40360
16
Rear Ignitor Assembly
6”, overall length 7-1/2”
9”, overall length 10-1 /2”
12”, overall length 13-1 /2”
46631
46656
46615
17
Ignition Terminal boot (2 required)
9788401
18
Housing and cover plate (with liquid gasket)
45856
19
Blower Wheel, 4” OD x 1” wide, 5/16” bore, CCW rotation facing open end
28613
20
Motor Mounting Ring
51060
21
Bushing, motor shaft, nylon
34686
22
Washer, motor stud, nylon (4 required)
30577
23
Burner Motor, 1/50 hp, 3300 rpm, 115-volt, 60-hz, permanent split capacitor with centrifugal
switch, CCW rotation facing shaft
27789S
24
Control Panel Base
61028
25
Indicator Light, 24-volt
33936
26
Pedestal Legs, 3/8” OD x 12” long (2 required)
61036
27
Control, Honeywell No. S89C hot surface ignition primary control, with 6 sec. TFI
99564
28
Transformer, 40-VA rating, 115-volt primary, 24-volt secondary
24315S
29
Terminal Block
33944
30
Motor Relay, 24-volt coil, SPST
35782
31
Control Panel Cover less nameplate
61150