Rinnai 309FT3 Energysaver Parts Identification
This document provides detailed exploded view diagrams and a comprehensive parts list to assist in identifying components for the Rinnai 309FT3 Energysaver for replacement or service purposes. Please contact your place of purchase or the manufacturer for parts availability and service inquiries.
Diagram Overview and Parts List
The following sections describe the various assemblies shown in the diagrams and provide a consolidated list of all identified parts.
Section 1: Main Casing and External Components
This diagram illustrates the primary external structure of the Rinnai 309FT3 Energysaver, including the front panel, side panels, top and bottom panels, legs, air filter assembly, and convection fan bracket. It shows how these outer components are assembled.
Section 2: Lower Internal Components
This section details the lower internal assembly, featuring the bottom plate, humidifier components such as the pan and tray, fan assemblies (convection and sirocco), the main PCB assembly, pressure sensors, and associated wiring and gaskets.
Section 3: Heat Exchanger and Burner Assembly
This diagram focuses on the core heating components, including the heat exchanger, burner box, small wing burners, flame rod, electrodes, primary and secondary air dampers, and related seals and fixings.
Section 4: Combustion Fan and Air Intake/Outlet
This view illustrates the combustion fan assembly, air intake and outlet tubes, elbows, flexible hoses, clips, and connecting fittings that manage airflow within the unit.
Section 5: Control and Electrical Components
This section depicts the electrical and control systems, including the main control panel, igniter, thermostats, pressure sensors, various sensor and relay harness assemblies, and the PC board bracket.
Consolidated Parts List
| Ref. | Description | Qty. | Part No. |
|---|---|---|---|
| 001 | Bottom plate support | 1 | 40457 |
| 002 | Bottom plate upper partition | 1 | 40458 |
| 003 | Humidifier tray fixing plate | 1 | 5363 |
| 004 | Convection fan bracket | 1 | 5365 |
| 005 | Filter bracket B | 2 | 40459 |
| 006 | Filter support | 1 | 4002 |
| 007 | Heat shield panel | 1 | 40460 |
| 008 | Floor fixing bracket | 2 | 3541 |
| 009 | Front panel | 1 | 40461 |
| 010 | Louvre assembly | 1 | 40462 |
| 011 | Lower panel | 1 | 5369 |
| 012 | Lock A | 2 | 5370 |
| 013 | Lower cover gasket | 2 | 40463 |
| 014 | Lower panel assembly | 1 | 40464 |
| 015 | Side panel left | 1 | 5371 |
| 016 | Side panel right | 1 | 5372 |
| 017 | Front leg | 2 | 3403 |
| 018 | Back leg | 2 | 3405 |
| 019 | Air filter C assembly | 1 | 5373 |
| 020 | Cover | 1 | 5374 |
| 021 | Top panel support | 1 | 5379 |
| 022 | Top panel | 1 | 5380 |
| 023 | Lock bracket | 2 | 5444 |
| 024 | Back spacer top panel | 1 | 40465 |
| 025 | Back spacer side panel right | 1 | 40466 |
| 026 | Back spacer side panel left | 1 | 40467 |
| 027 | Securing brackets | 2 | 5837 |
| 028 | Power cord retainer | 1 | 5390 |
| 029 | Warm air seal panel | 1 | 5432 |
| 030 | Heat exchanger gasket B | 1 | 4306 |
| 031 | Transformer bracket | 1 | 5394 |
| 031 | Screw 8 x 3/8 PHPSC | 1 | 9146 |
| 032 | OHS no.2 bracket | 1 | 40468 |
| 033 | Humidifier pan | 1 | 3554 |
| 035 | Cord gasket B | 4 | 5496 |
| 036 | Cord gasket A | 1 | 5497 |
| 100 | Heat exchanger assembly | 1 | 40471 |
| 101 | OHS fixing plate | 1 | 5398 |
| 102 | Flame rod bracket | 1 | 5400 |
| 103 | Flame rod gasket B | 1 | 4230 |
| 104 | Flame rod | 1 | 5408 |
| 105 | Flame rod retainer | 1 | 5409 |
| 106 | Combustion chamber fixer | 1 | 5410 |
| 107 | Fixing plate | 1 | 5411 |
| 108 | Seal plate packing | 1 | 5412 |
| 109 | Seal plate B assembly | 2 | 5413 |
| 110 | Flange board | 2 | 5414 |
| 111 | Burner box assembly | 1 | 5415 |
| 112 | Small wing burner | 2 | 3091 |
| 113 | Burner support rear assembly | 1 | 5416 |
| 114 | Burner box gasket | 1 | 4231 |
| 115 | Primary air damper | 1 | 3588 |
| 116 | Secondary air damper LPG | 1 | 3593 |
| 116 | Secondary air damper NG | 1 | 3594 |
| 117 | Electrode retainer plate | 1 | 5843 |
| 118 | Electrode | 1 | 5844 |
| 119 | Electrode packing | 1 | 5845 |
| 120 | Main injector LPG | 2 | 3093 |
| 120 | Main injector NG | 2 | 5420 |
| 121 | Manifold assembly | 1 | 5427 |
| 122 | Manifold packing | 1 | 5428 |
| 123 | Burner box fitting plate | 1 | 5481 |
| 124 | Fitting plate packing | 1 | 40472 |
| 125 | Pressure point seal screw | 1 | 40338 |
| 126 | O-ring (S4) | 2 | 40224 |
| 127 | Gas control assembly | 1 | 40051 |
| 128 | Pressure point screw | 1 | 5657 |
| 129 | Inter-connection assembly | 1 | 5437 |
| 130 | O-ring (P-10) | 2 | 6786 |
| 131 | Pressure gauge tube B | 1 | 40473 |
| 132 | Pressure gauge tube A | 1 | 40474 |
| 133 | Connecting tube retainer | 1 | 5438 |
| 134 | Combustion fan assembly | 1 | 40475 |
| 135 | Combustion fan motor bracket | 1 | 5441 |
| 136 | Cushion rubber | 3 | 4364 |
| 137 | Screw for combustion fan | 1 | 5850 |
| 138 | Front panel fixer | 1 | 5442 |
| 139 | Front panel packing | 1 | 5443 |
| 140 | Igniter cover | 1 | 40476 |
| 141 | Air inlet tube | 1 | 40477 |
| 142 | Air inlet packing | 1 | 5446 |
| 143 | Combustion chamber connection | 1 | 5447 |
| 144 | Connecting tube fixer | 1 | 5448 |
| 145 | Back pressure tube | 1 | 5529 |
| 146 | Clip hose 8 mm | 1 | 10495 |
| 147 | Air inlet A | 1 | 5451 |
| 148 | Air inlet packing | 1 | 4053 |
| 149 | Air intake flexible hose | 1 | 4041 |
| 150 | Air intake elbow | 1 | 4040 |
| 151 | Exhaust elbow assembly | 1 | 5454 |
| 152 | O-ring | 1 | 4037 |
| 153 | Cover | 1 | 2972 |
| 154 | Stainless steel sheath clamp | 1 | 4171 |
| 155 | Flue lock clamp | 1 | 3455 |
| 156 | Plastic inlet hose clips | 2 | 4373 |
| 157 | Gas inlet | 1 | 4360 |
| 158 | Gas filter | 1 | 40079 |
| 159 | Packing | 1 | 1732 |
| 160 | Clip hose 6 mm | 1 | 10465 |
| 161 | Hose band N | 1 | 40480 |
| 162 | Air intake baffle ring | 1 | 40481 |
| 400 | Convection fan assembly | 1 | 40482 |
| 401 | Convection fan motor | 1 | 40483 |
| 402 | Sirocco fan assembly | 1 | 48484 |
| 403 | Convection fan case assembly | 1 | 40485 |
| 404 | Heat shield board assembly | 1 | 5459 |
| 405 | TF fixing plate | 1 | 5460 |
| 406 | Cable clip (0248) | 1 | 5391 |
| 407 | Wire clip | 1 | 5541 |
| 408 | Cable clip | 1 | 5393 |
| 409 | Edge saddle | 1 | 5862 |
| 410 | Truss FT screw | 1 | 40486 |
| 700 | Igniter | 1 | 5466 |
| 700 | PCB assembly (igniter incl.) | 1 | 40487 |
| 701 | Control panel assembly | 1 | 40488 |
| 702 | Power supply cord | 1 | 40489 |
| 703 | Pressure sensor | 1 | 40490 |
| 704 | Pressure sensor harness | 1 | 40491 |
| 705 | High tension cord | 1 | 5467 |
| 706 | Ignition harness assembly | 1 | 40492 |
| 707 | POVSV harness | 1 | 40493 |
| 708 | Thermistor relay harness assembly | 1 | 40494 |
| 709 | TF harness | 1 | 40495 |
| 710 | Thermostat | 1 | 40496 |
| 711 | Thermostat | 1 | 40497 |
| 712 | Room thermistor assembly | 1 | 40498 |
| 713 | FR lead | 1 | 40499 |
| 714 | Overheat switch | 1 | 4385 |
| 716 | Electrode sleeve | 1 | 7564 |
| 780 | PC board bracket assembly | 1 | 40487 |
| 800 | Water line label | 1 | 5556 |
