| | COMBUSTION COMPONENTS | | |
| 2 | 24A1200 | Base assembly | | |
| 3 | 24B2600 | Panel, top, combustion chamber | | |
| 4 | 24A2400 | Panel, bottom, combustion chamber | | |
| 5 | 24A2100 | Panel, left, combustion chamber | | |
| 6 | 24A2200 | Panel, right, combustion chamber | | |
| 7 | 24B2004 | Panel, access, combustion chamber | | |
| 8 | 24B2010 | Support, front, fan transition | | |
| 9 | 24B2009 | Support, rear, fan transition | | |
| 10 | R2026800 | Hardware kit, Combustion Chamber/Condenser | | |
| 11 | L2011800 | Burner | | |
| 12 | S2009700 | Burner Gasket | | |
| 13 | R2002500 | Tile kit (top & bottom of heat exchanger w/top insulation) | | |
| 14 | 24B2700 | Tile support with rods | | |
| 15 | 24B2005 | Tile support protective liner | | |
| 16 | 24A2025 | Panel, Divider, Condenser | | |
| 17 | 24A2011 | Diverter, Air Flow, Condenser | | |
| 18 | 24A2300 | Cover, Flue Transition | | |
| 19 | 24B2012 | Clamping Bar, Side/Top, Flue Transition | | |
| 20 | 24A2014 | Clamping Bar, Short, Flue Transition | | |
| 21 | 24A2013 | Clamping Bar, Long, Flue Transition | | |
| 22 | S2014300 | Heat Exchanger, Condensing | | |
| 24 | R2017200 | Heat exchanger assembly, copper | | |
| 24 | R2017201 | Heat exchanger assembly, cupro-nickel | | |
| 29 | 24A9003 | Cable, Securement, Pump/Motor | | |
| 30 | E2312400 | Pressure Switch, Differential | | |
| | GAS TRAIN / COMBUSTION AIR COMPONENTS | | |
| 35 | 24B6000 | Gas train assembly, standard, Nat | | |
| 35 | 24B6020 | Gas train assembly, standard, LP | | |
| 35 | 24B6400 | Gas train assembly, control pack A, Nat | | |
| 35 | 24B6420 | Gas train assembly, control pack A, LP | | |
| 35 | 24B6500 | Gas train assembly, control pack B and E, Nat | | |
| 35 | 24B6520 | Gas train assembly, control pack B and E, LP | | |
| 36 | V2015700 | Gas valve, safety | | |
| 37 | V2014400 | Gas valve, solenoid safety, for control packs B & E | | |
| 38 | V2015500 | Gas valve, mod valve actuator | | |
| 40 | R2003600 | Gas valve, mod complete (body and actuator) size 2000, Nat | | |
| 41 | V2003200 | Gas valve, manual (Primary) | | |
| 41 | V2003000 | Gas valve, manual (Secondary) | | |
| 41 | V2003200 | Gas valve, manual (Primary, Control Pack B & E) | | |
| 42 | R2019600 | Double valve body / Actuator | | |
| 43 | V2016500 | Double valve body | | |
| 44 | V2016600 | On/Off Actuator | | |
| 45 | V2000100 | Normally open vent valve | | |
| 46 | 24B6200 | Gas orifice kit (orifice in holder), Nat | | |
| 46 | 24B6220 | Gas orifice kit (orifice in holder), LP | | |
| 47 | P2034300 | Gas orifice, Nat | | |
| 47 | P2038300 | Gas orifice, LP | | |
| 48 | E0023300 | Pressure switch, high gas | | |
| 49 | E0023500 | Pressure switch, low gas | | |
| 50 | R2020700 | Tubing/Fittings (gas train repair kit) | | |
| 51 | 20B5000 | Air filter box assembly (with gasket and hardware) Nat | | |
| 51 | 20B5020 | Air filter box assembly (with gasket and hardware) LP | | |
| 52 | A2108300 | Air filter | | |
| 53 | R2004600 | Gasket kit, air filter | | |
| 54 | 24B5300 | Air filter box cover | | |
| 55 | S2010800 | Air filter felt gasket | | |
| 56 | 24B5001 | Air filter air inlet vent w / gasket | | |
| 57 | A2108400 | Blower | | |
| 58 | R2005000 | Blower gasket kit | | |
| 59 | 24B5108 | Air orifice, Nat | | |
| 61 | 24B5128 | Air orifice, LP | | |
| 63 | 24B5108 | Air transition (filter box to blower) | | |
| 65 | RW2002300 | Ignitor kit (with gasket) | | |
| 66 | F0044800 | Sight glass | | |
| 67 | E2312300 | Pressure switch, air | | |
| | ELECTRICAL COMPONENTS | | |
| 70 | 30-280 | Transformer, 115/24V, 80VA | | |
| 70 | E2310400 | Transformer, 115/24V, 150VA (Control pack B & E only) | | |
| 71 | R2005400 | Transformer, 115/230V step up | | |
| 72 | E2306000 | Transformer, 24/115 step up | | |
| 73 | RE2043600 | Fuse kit, 2 Amp, 5 pack (not shown) | | |
| 73 | RE2043500 | Fuse kit, 5 Amp, 5 pack (Control packs B and E) (not shown) | | |
| 74 | RE2000300 | Fuse holder (qty of 5) | | |
| 75 | R2005600 | Diagnostic lights kit | | |
| 76 | E2311900 | Ignition control (Single Trial) | | |
| 76 | R2022600 | Ignition control (Three Trial, Control packs F and G) | | |
| 77 | RE0015900 | High limit, manual reset, RHCH boiler | | |
| 77 | RE2217800 | High limit, manual reset, RHCV water heater | | |
| 78 | E2101400 | Temperature control, RHCH boiler | | |
| 79 | E2104000 | Module, proportional control | | |
| 80 | E2306700 | Timer, delay on make | | |
| 81 | E2306200 | Relay, DPDT, 24V coil | | |
| 82 | E0076700 | Relay, DPDT, 120V coil | | |
| 83 | RE2077700 | Relay, EM2 kit | | |
| 84 | E2311100 | Relay, 115VAC SPST | | |
| 85 | E2325700 | Controller, Programmable, Electronic | | |
| 86 | E2307200 | Voltage regulator | | |
| 87 | E2039500 | Terminal block, 2 position | | |
| 88 | E2079400 | Terminal block, 4 position | | |
| 89 | E2103700 | Sensor, temperature control | | |
| 90 | E0109200 | Switch, toggle, 3-way SPDT | | |
| 91 | E2056300 | Switch, toggle, DPDT | | |
| 93 | A0014300 | Bell, alarm, 24V | | |
| 94 | 24B7001 | Cover, control panel top | | |
| 95 | 24B7004 | Cover, control panel bottom | | |
| 96 | 24B7002 | Enclosure, control panel | | |
| 97 | 24B7701 | Voltage divider panel | | |
| 98 | 24B7010 | Support, control panel bottom | | |
| 99 | 24B7007 | Panel, diagnostic lights | | |
| 100 | 24B7008 | Bracket, mounting, diagnostic panel | | |
| 101 | 24B7010 | Standoff | | |
| 102 | R2007600 | Hardware kit, control panel | | |
| 103 | 24B7009 | Bracket, support, control panel top | | |
| 104 | 24B7012 | Bracket, Low water cutoff, Remote Mount | | |
| 105 | RE2075100 | Switch, Low water cutoff, Manual Reset | | |
| | HEAT EXCHANGER / WATER PATH | | |
| 110 | 20A4200 | Header cover | | |
| 111 | 20B4100 | Water barrier assembly | | |
| 112 | S2012300 | Gasket, heat exchanger cover | | |
| 113 | R2008300 | Hardware kit, heat exchanger cover | | |
| 114 | RA0079000 | Gauge, temperature/pressure | | |
| 115 | A0002700 | Pressure relief valve, RHCH boiler | | |
| 115 | A0000400 | Pressure relief valve, RHCH boiler | | |
| 116 | RE2058300 | Immersion well, high limit | | |
| 117 | RE2074000 | Immersion well, temperature control | | |
| 118 | R2000700 | Tube cleaning kit (not shown) | | |
| 119 | R2008400 | Flow switch (with paddle) | | |
| 120 | E2315000 | | | |
| 121 | E2314300 | Temperature Sensor, 1/8" NPT | | |
| 122 | R2027000 | Low water cutoff Probe Cover/Plate | | |
| 123 | P2040501 | Pipe Assembly (condenser to valve) | | |
| 124 | P2040503 | Pipe Assembly (outlet to pump) | | |
| 125 | P2040502 | Pipe Assembly (valve to pump) | | |
| 126 | P2040504 | Pipe Assembly (coil to inlet) | | |
| 127 | 24A9200 | Valve Control Arm | | |
| 128 | 20A9206 | Valve Connection Rod | | |
| 129 | R2027100 | Control Arm Hardware Kit | | |
| 130 | A2110000 | Actuator, Valve, Electronic | | |
| 131 | 24A9214 | Bracket, Support, Actuator | | |
| 132 | 12A9207 | Bracket, Mounting, Actuator/Control | | |
| 133 | R2027200 | Pipe Gasket Kit | | |
| 134 | A2109900 | Valve, Butterfly, 2-Way | | |
| 135 | R2027300 | Pipe Hardware Kit | | |
| 136 | 24A1003 | Bracket, Pipe Support | | |
| 137 | P2011700 | Nipple, Close, 2" NPT | | |
| 138 | P2048400 | Elbow, Bronze, 2-1/2" Class 150 | | |
| 139 | A2111400 | Soft Water Pump Assembly | | |
| A2111200 | Normal Water Pump Assembly | | |
| | JACKET | | |
| 140 | 24B3200 | Panel, upper front access | | |
| 141 | 24B3300 | Panel, lower front access | | |
| 142 | 12A3014 | Panel, waterway access | | |
| 143 | 24B3012 | Panel, waterway cover | | |
| 144 | 24B3016 | Panel, pump cover | | |
| 145 | 24B3019 | Panel, PRV access | | |
| 146 | 24A3006 | Panel, rear access | | |
| 147 | 24B3001 | Panel, front left | | |
| 148 | 24B3002 | Panel, front right | | |
| 149 | 24A3003 | Panel, rear left | | |
| 150 | 24A3004 | Panel, rear right | | |
| 151 | 24B3005 | Panel, common access | | |
| 152 | 24B3007 | Panel, top | | |
| 153 | 24B3008 | Panel, support | | |
| 154 | 12B3010 | Panel, flue vent access | | |
| 155 | 24B3011 | Panel, ducted air cover | | |
| 156 | R2009600 | Jacket trim kit | | |
| 157 | R2009700 | Hardware kit, jacket | | |
| 158 | A2108200 | Window, control / display | | |
| 159 | 24B3102 | Window guide | | |
| 160 | R2010000 | Window latch | | |
| 161 | R2026700 | Jacket retro-fit kit (standard) | | |
| 162 | R2027100 | Jacket retro-fit kit (mounted pump) | | |
