Model 702G/O Advanced gas/oil burners — Instruction manual
Carlin part number MN702GO Rev. 06/23/14
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Where appliance instructions differ from this manual, follow the appliance instructions.
1. The Carlin Model 702G/O combination gas/oil burner
(continued)
1 Cast aluminum burner housing
2 Air tube (with gas manifold)
3 Burner flange
4 Burner motor
7 Ignitor, Carlin 41000
8 Damper motor
9 Air damper & low fire
adjusting screw
10 Air damper linkage
11 Air flow switch
12 Control panel (connection for 120
vac
power and 120
vac
control
and limit circuit input from boiler)
13 Gas/oil changeover switch
14 Low fire hold switch (LFS)
20 Fuel pump
21 Combustion head assembly
22 Oil valve junction box
23 1st stage oil valve
24 Safety oil valve
25 2nd stage oil valve (fuel
unit blocking valve)
29 Gas manifold
30 Gas spuds (4 required)
31 Gas butterfly valve
32 Butterfly valve linkage
33 Union
34 Gas shut-off valve (with
2 test tappings)
35 Automatic gas valve (diaphragm type)
36 Automatic gas valve
37 Gas train junction box
38 Gas pressure regulator
39 Manual gas valve (with
two test tappings)
40 Gas entrance connection
41 Pressure tap & bleed port
42 Pilot gas line manual valve
(with 2 test tappings)
43 Combination pilot gas valve
60 Head position indicator scale
61 Head position adjustment screw
62 Nozzle line
63 Electrode lead wires
64 Thermal fuse
65 Electrode ceramic insulators
66 Electrodes
67 Electrode clamp
68 Nozzle adapter
69 Nozzle
70 Retention ring assembly
71 UV scanner tube/adapter
72 UV scanner
