| | COMBUSTION CHAMBER COMPONENTS | | |
| 1 | 4C1000 | Base Assembly | | |
| 2 | 4C1000 | Support, Tile Notch | | |
| 3 | T2108804 | Chamber, Refractory, Heat Exchanger | | |
| 4 | 4C2023 | Assembly, Front Panel, Combustion Chamber | | |
| 5 | 4C2006 | Panel, Rear, Combustion Chamber | | |
| 6 | 4C2001 | Panel, Top, Combustion Chamber | | |
| 7 | 2C2201 | Chamber, Right Side, Bottom | | |
| 8 | 2C2601 | Chamber, Left Side, Bottom | | |
| 9 | 2C2002 | Chamber, Side, Top | | |
| 10 | 2C2016 | Panel, Right Side, Air Box | | |
| 11 | 2C2015 | Panel, Left Side, Air Box | | |
| 12 | 2C2500 | Weldment, Duct, Blower | | |
| 13 | 4C2008 | Panel, Top, Air Box | | |
| 14 | 4C2017 | Plate, Spacer, Burner/Manifold | | |
| 15 | 4C2009 | Panel, Front, Air Box | | |
| 16 | 4C2100 | Assembly, Exhaust Vent, Vertical | | |
| 17 | 2C2300 | Weldment, Flue | | |
| 18 | 2C5000 | Assembly, Air Shutter, Blower | | |
| 19 | 2C3800 | Assembly, Filter Housing | | |
| 20 | 2C3803 | Media, Filter | | |
| 21 | F2022300 | Clip, Retaining, Filter Media | | |
| 22 | P0101404 | | | |
| 23 | E0254000 | Blower/Motor | | |
| 24 | S2104400 | Gasket, Blower | | |
| 25 | 10956000 | Assembly, Sight Glass | | |
| 26 | W2002300 | Ignitor, Hot Surface | | |
| 27 | S2102300 | Gasket, Burner | | |
| 28 | L0063301 | Burner, Main (Pressure Port) | | |
| 29 | L0063300 | Burner, Main | | |
| 30 | S2104500 | Gasket, Blower Duct | | |
| 31 | T2015810 | Kit, Insulation, Combustion Chamber | | |
| 32 | S2104600 | Gasket, Flue Housing | | |
| | JACKET COMPONENTS | | |
| 40 | 4C3320 | Panel, Front, Jacket | | |
| 41 | 4C3220 | Panel, Rear, Jacket | | |
| 42 | 4C3021 | Panel, Top, Jacket | | |
| 43 | 4C3019 | Panel, Jacket, Control Access | | |
| 44 | 2C3620 | Panel, HX Side Access, Jacket | | |
| 45 | 2C3621 | Panel, Right Side, Upper, Jacket | | |
| 46 | 2C3520 | Panel, Right Side, Jacket | | |
| 47 | 2C3420 | Panel, Left Side, Jacket | | |
| | JACKET COMPONENTS (continued) | | |
| 48 | 2C3622 | Panel, Lower Access, Jacket | | |
| 49 | 2C3623 | Panel, Filter Side, Upper, Jacket | | |
| 50 | 2C3010 | Panel, Filter Access, Jacket | | |
| 51 | 4C3700 | Weldment, Cover, Air Inlet | | |
| 52 | 4C3701 | Panel, Cover, Exhaust | | |
| 53 | 10338600 | Plate, Cover, Sight Glass | | |
| 54 | 2C3014 | Side Panel, Pump Cover, Jacket | | |
| 55 | 2C3016 | Cover, Pump | | |
| | HEAT EXCHANGER COMPONENTS | | |
| 60 | 4C4100 | Assembly, Tube, Heat Exchanger, Copper | | |
| 4C4120 | Assembly, Tube, Heat Exchanger, Copper-Nickel | | |
| 61 | 2C4102 | Header, Inlet/Outlet | | |
| 62 | 2C4103 | Header, Return | | |
| 63 | 2C4001 | Chamber, Header, Heat Exchanger | | |
| 64 | 2C4002 | Baffle, End, Heat Exchanger Tube | | |
| 65 | S0077700 | | | |
| S0077800 | | | |
| 66 | S0076500 | | | |
| 67 | A0063300 | | | |
| A0001200 | | | |
| 68 | A0079000 | Gauge, Temperature/Pressure | | |
| 69 | E0234201 | Well, Immersion, Hi-Limit Temperature | | |
| 70 | E0253900 | Probe, Thermistor | | |
| 71 | E0013000 | Switch, Water Flow | | |
| 72 | A0076800 | Pump, Circulator, Hydronic | | |
| A0095700 | Pump, Circulator, Volume Water | | |
| 73 | S0070800 | | | |
| | GAS TRAIN COMPONENTS | | |
| 80 | L0063704 | Weldment, Gas Manifold, Main | | |
| 81 | L0063418 | Manifold, Gas, On/Off | | |
| 82 | L0063414 | Manifold, Gas, 2 Stage Left Bank | | |
| 83 | L0063405 | Manifold, Gas, 2 Stage Right Bank | | |
| 84 | L0062900 | Orifice, Nat. Gas | | |
| L0063000 | Orifice, LP Gas | | |
| 85 | F2022400 | Spacer, Gas Orifice | | |
| 86 | V0079400 | | | |
| V0079500 | | | |
| 87 | 2C2018 | Cover, Gas Inlet, Air Box | | |
| | CONTROL PANEL COMPONENTS | | |
| 90 | 4C7002 | Panel, Mounting, Electrical Components | | |
| 91 | 2C7003 | Panel, LED/Control | | |
| 92 | 2C7004 | Bracket, Mounting, Hi-Limt/Pressure Switch | | |
| 93 | E0255500 | Switch, Pressure, Diaphragm, SPST | | |
| 94 | E0240900 | Switch, Pressure, Diaphragm, SPDT | | |
| 95 | E2304800 | Switch, Limit, High Temperature, Hydronic | | |
| E2324200 | Switch, Limit, High Temperature, Volume Water | | |
| 96 | E0180500 | Transformer, 24, 120 V, 50VAC | | |
| 97 | E0253400 | Ignition Control, Hot Surface Ignition | | |
| 98 | E0109200 | Switch, Toggle, SPDT | | |
| 99 | E2306700 | Module, Relay, Encapsulated, 24VAC | | |
| 100 | E2077700 | Relay, Time Delay, (24VAC) Delay On Break, Adjustable | | |
| 101 | E2105600 | Board, Diagnostic, LED | | |
| 102 | E0253200 | Controller, Digital, Temp., Dual Loop, Hydronic | | |
| E0253100 | Controller, Digital, Temp., Dual Loop, Volume Water | | |
| 103 | E2322700 | Switch, Rocker, 15A, 125 VAC, 1/2 HP | | |
| 104 | E2103200 | | | |
| 105 | 2C7005 | Cover, Transformer | | |
