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| INSTRUCTIONS FOR EXAMINING THE FURNACE | ||
| VENT PIPE | INSTALLATION | ||
| CONDENSATE | It is the owner’s responsibility to ensure that an annual inspection of the | ||
BLOWER | entire heating portion of the unit is made by a qualified service agency. | |||
HOSE | ||||
ACCESS | 1. Examine the heat exchanger, through a field installed access | |||
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PANEL |
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CONTROL |
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| panel located on the supply air plenum. Visually examine the exte- | |
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| rior sections of the vent/combustion air piping and the vent con- | ||
BOARD |
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| RAIN |
| nectors to be sure that they are physically sound without holes or | |
TRANSFORMER | GUTTER |
| excessive corrosion. | |
| INDUCER |
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PRESSURE | 2. Examine the vent pipe making sure it is firmly in place, that it | |||
HOUSING | ||||
SWITCH | INDUCER |
| slopes slightly upward and is physically sound without holes and | |
TUBING |
| all of the connections are secure. | ||
MOTOR |
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PRESSURE | CONDENSATE | 3. Examine the | ||
SWITCHES | DRAIN HOSE |
| physically sound, sealed to the furnace casing, and the ducts ter- | |
| CONDENSATE |
| minate outside the space containing the furnace. | |
GAS | 4. | Examine the furnace casing making sure the physical support is | ||
TRAP | ||||
VALVE | ||||
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| sound without sagging, cracks or gaps. Examine the furnace base | ||
| LIMIT |
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| making sure it is physically sound without cracks, gaps or sagging | ||
GAS | SWITCH |
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| and has a good seal. | |||
REFERENCE |
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HOSE |
| 5. | Examine the furnace casing for obvious signs of deterioration. | |
| BURNER BOX | |||
| 6. | Examine the burner flames to make sure they are in good adjust- | ||
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FIGURE 1: Component Locations |
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| ment. Refer to the pictorial sketch shown in Figure 2 as a compari- | |
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| son to the actual flame. | ||
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7.NEVER . . .Store flammable materials of any kind near your fur- nace. Gasoline, solvents, and other volatile liquids should be stored only in approved containers outside your home. These materials vaporize easily and are extremely dangerous.
8.NEVER . . .Store cleaning materials near your furnace. Materials such as bleaches, detergents, powdered cleansers, etc., can cause corrosion of the heat exchangers.
9.NEVER . . . Use the area around your furnace as a storage area for items which could block the normal flow of air. This flow of air is required for ventilation of the various furnace components.
FIRE OR EXPLOSION HAZARD
This furnace is designed and approved for use with Nat- ural Gas and (LP) Propane Gas ONLY. DO NOT BURN ANY LIQUID FUEL OR SOLID FUEL IN THIS FURNACE.
Burning any unapproved fuel will result in damage to the furnace heat exchanger, which could result in Fire, Per- sonal Injury, and/or Property Damage.
7.Examine the furnace as outlined above in steps 1 - 6 before each heating season. Use Figure 3 for visual reference.
MAIN BURNER | END OF |
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MANIFOLD | BURNER | BURNER |
| FLAME | |
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YELLOW
TIPS
INNER FLAME CONES (Blue Flame)
COMBUSTION AIR TRANSITION (not shown)
FIGURE 2: Burner Flame Drawing
3EXAMINE RETURN AIR 
DUCT CONNECTION
BLOWER DOOR
2REMOVE THIS PANEL TO EXAMINE VENT PIPE
4 EXAMINE |
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| 1 | PLACE A FIELD | 4 | EXAMINE |
FURNACE |
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| FURNACE | |
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| INSTALLED ACCESS |
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CASING |
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| CASING | |
6 REMOVE THIS |
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| PANEL LOCATED IN |
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| PANEL TO |
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| THE DOWNFLOW |
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5 EXAMINE | EXAMINE THE |
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| PLENUM TO EXAMINE |
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BURNER FLAMES | BURNER DOOR |
| THE HEAT EXCHANGER | 5 EXAMINE CASING | ||
CASING FOR |
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DETERIORATION |
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| FOR DETERIORATION | |
FIGURE 3: Furnace Examination Checkpoints
2 | Unitary Products Group |
