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Part Number 550-110-677/0299
13
CSD-1 control system — Natural gas
EGH-105 to EGH-125 EGH-105 to EGH-125
EGH-105 to EGH-125 EGH-105 to EGH-125
EGH-105 to EGH-125 Control Supplement
1 CSD-1 control panel 14 Pilot shutoff valve
2 Ignition control 15 Leak test valves with plugs
3
Impulse relay and lighted push-button alarm
silencing switch
16 Gas supply connection
17 Burner manifold
5 Transformer/relay 18 Limit control, auto reset
6 Junction box 19 Limit control, manual reset
7 Damper (optional) 20 Pressure/temperature gauge
8 Damper connector 21 Wire harness
9 Dummy plug 22 Pilot spark & sense wires
10 Damper harness 23 Pilot gas tubing
11 Main gas valve 24 Circulator, by others
12 Manual gas valve
25
Probe LWCO, Manual reset (Mount in sup-
ply or return piping above top of boiler
between boiler and any isolation valve(s).)
13 Pilot gas valve
13a Pilot gas pressure regulator