| Expanded View (Diagram 1) | 
| Item # | Description | Part # | 
| 1 | 500,000 BTU Module | 7350P-006 | 
| 2 | Burner Assembly (Burner Door, Flapper Valve, Burner, Burner    Gasket) | 7350P-422* | 
| 3 | M6 Nut - Burner Door | 7500P-067 | 
| 4 | Flame Rectification Probe (with Gasket) | 7350P-023 | 
| 5 | Spark Electrode (with Gasket) | 7350P-266 | 
| 6 | Gasket - Probe/Electrode | 7250P-005 | 
| 7 | M4 X 8MM S.S. Screw - Probes | 7250P-069 | 
| 8 | Gasket - Blower to Flapper Valve | 7350P-274* | 
| 9 | M5 X 12MM Allen Cap Screw - Blower (Not Shown) | 7250P-206 | 
| 10 | Combustion Blower | 7350P-159 | 
| 11 | Air/Gas Mixer Assembly | 7350P-630 | 
| 12 | M5 X 12MM Allen Cap Screw - Air/Gas Mixer | 7250P-478 | 
| 13 | Washer - Air/Gas Mixer | 7450P-115 | 
| 14 | 3/4 Flare X 3/4 BSPP Fitting | 7450P-138* | 
| 15 | 3/4 Flare Flex Hose | 7600P-152* | 
| 16 | 3/4 Flare X 3/4 NPT Adapter | 7450P-143 | 
| 17 | 3/4 NPT Elbow | 7350P-083* | 
| 18 | 3/4 NPT X Close Nipple - Zinc Phosphate Coated | 7350P-101* | 
| 19 | 3/4 Gas Ball Valve | 7350P-079* | 
| 20 | M5 X 25MM S.S. Socket Cap Screw - Switch Block | 7250P-061* | 
| 21 | Gas Pressure Switch Block (Left) | 7350P-075 | 
| 22 | High Pressure Gas Switch w/O-Ring (Optional) | 7350P-035 | 
| 23 | Gas Valve | 7350P-033 | 
| 24 | Silicone O-Ring #127 - Switch Block | 7350P-077 | 
| 25 | Gas Pressure Switch Block (Right) | 7350P-076* | 
| 26 | Low Pressure Gas Switch w/O-Ring (Optional) | 7350P-036 | 
| 27 | 3/4 X 4-1/2" Nipple - Zinc Phosphate Coated | 7350P-081* | 
| 28 | 3/4" X 1-1/2" NPT Reducting Coupling Black Iron | 7350P-110* | 
| 29 | Thermal Fuse | 7350P-626 | 
| 30 | 1/8-27 NPT Plug - Switch Block | 7350P-078* | 
| 31 | 2" NPT Nipple | 7350P-102* | 
| 32 | Ceramic Refractory (Located Inside End of Module) | 7250P-162 | 
| 33 | Temperature Limit Switch | 7450P-085 | 
| . |  |  | 
| Side  View / Control Board (Diagram 2) | 
| Item # | Description | Part # | 
| 41 | Condensate Overflow Switch | 7350P-167 | 
| 42 | 2 in. PVC Plug | 7350P-113 | 
| 43 | Condensate Collector | 7350P-613 | 
| 44 | O-Ring - ECO High Limit Sensor | 7500P-100 | 
| 45 | ECO High Limit Sensor (with O-Ring) | 7500P-033 | 
| 46 | O-Ring - Inlet /Outlet Nipple | 7350P-072 | 
| 47 | Inlet/Outlet Nipple Cup | 7350P-015 | 
| 48 | Temp/Pressure Gauge 200 PSI | 7250P-499 | 
| 49 | Shut-Off Drain | 7350P-327* | 
| 50 | Outlet Nipple (with O-Ring) | 7350P-318* | 
| 51 | ECO Switch - 190 Deg. | 7500P-002 | 
| 52 | Thermistor | 7250P-667 | 
| 53 | Inlet Nipple | 7350P-004 | 
| 54 | Low Water Cut-Off Probe | 7350P-089 | 
| 55 | 3/4 in. NPT X 3 in. Nipple - Brass | SN1018* | 
| 56 | 75# Relief Valve - 3/4 in. NPT | 7350P-223 | 
| 57 | Silicone O-Ring 2-007 - Barbed Fitting | 7250P-152 | 
| 58 | S.S. Barbed Fitting - 1/4 in. Hose X 10-32 | 7250P-154 (new # 64980137) | 
| 59 | Blocked Vent Pressure Switch | 7250P-150 (new # 64980007) | 
| 60 | Plastic Tubing 3/16 in. ID X 5/16 in. OD X 12 in. | 7000P-805 (new # 64980021) | 
| 61 | Flue ECO Switch - 160 Deg. | 7250P-739 | 
| 62 | Vent Adaper | 7350P-219 | 
| . |  |  | 
|  Cabinet / Control Board (Diagram 3) | 
| Part # | Description | Part # | 
| 71 | MOD CON Frame | 7350P-040* | 
| 72 | Leveling Foot / Mount Kit (Single Models Only) | 7250P-673 | 
| 73 | Jacket Mounting Bracket | 7250P-316* | 
| 74 | #10 X 1/2 in. Self Tapping Screw | 7350P-063 | 
| 75 | Jacket - Bottom (with Screws) | 7350P-315 | 
| 76 | Jacket - Left Side (with Screws) | 7350P-313 | 
| 77 | Jacket - Right Side (with Screws) | 7350P-314 | 
| 78 | Jacket - Read (with Screws) | 7350P-049 | 
| 79 | Jacket - Top (with Screws) | 7350P-312* | 
| 80 | Jacket - Front (with Screws) | 7350P-047 | 
| 81 | Jacket - Lower Front (with Screws) | 7350P-048 | 
| 82 | Jacket - Upper Front (with Membrane, Screws) | 7350P-046* | 
| 83 | Power Switch | 7500P-087 | 
| 84 | Display Board | 7450P-028 | 
| 85 | Electrical Box | 7350P-042* | 
| 86 | 926 Control Board | 7350P-1300 | 
| 87 | Field Connection Board | 7350P-070 | 
| 88 | 6-32 X 1/4 in. Pan Head Screw | 7500P-115 | 
| 89 | Relay Board | N/A | 
| 90 | Fuse for Control Board - 6.3 AMPS | 7250P-378 | 
| 91 | Fuse - Connection Board - 3.15 AMPS | 7350P-129 | 
| 92 | Electrical Box/Access Panel Cover | 7350P-062 | 
| 93 | Air Inlet Bracket | 7350P-103 | 
| 94 | 120V Wiring Harness (Location) | 7350P-632 | 
| 95 | Low Voltage Wiring Harness (Location) | 7350P-740 (new # 7350P-737) | 
| 96 | Blower Wiring Harness (Location) | N/A | 
| . |  |  | 
|  | See Accessories - PC connection, vent kits, mesh screens, etc. |  | 
| . |  |  | 
LP-445 Rev. 9.2.14