INSTRUCTIONS FOR EXAMINING THE FURNACE INSTALLATION
It is the owner’s responsibility to ensure that an annual inspection of the entire heating portion of the unit is made by a qualified service agency. Examine the furnace as outlined below in steps “1 - 6” before each heating season. Use Figures 5 & 6 for visual reference.
1.Examine the heat exchanger, vent/combustion air piping, vent connectors and chimney to be sure they are clear and free of obstructions.
2.Examine the vent pipe making sure it is firmly in place, that it slopes slightly upward and is physically sound without holes and all of the connections are secure.
3.Examine the
4.Examine the furnace casing making sure the physical support is sound without sagging, cracks or gaps. Examine the furnace base making sure it is physically sound without cracks, gaps or sagging and has a good seal.
5.Examine the furnace casing for obvious signs of deterioration.
6.Examine the burner flames to make sure they are in good adjust- ment. Refer to the pictorial sketch shown in Figure 4 as a compar- ison to the actual flame.
BLUE CONE PORTION OF FLAME SHOULD
ENTER HEAT EXCHANGER TUBE
FIGURE 4: Burner Flame Drawing
| 5 EXAMINE ENTIRE |
EXAMINE EXTERNAL | FURNACE CASING |
VENT PIPE | SHOWN IN ALL |
| DRAWINGS |
4 EXAMINE |
| 6 REMOVE |
| PANEL | |
FURNACE |
| TO EXAMINE |
CASING |
| BURNER |
|
| |
|
| FLAMES |
3 EXAMINE RETURN AIR DUCT CONNECTION
1 EXTERNAL HEAT EXCHANGER INTERNAL VENT COMBUSTION AIR PIPE. MUST REMOVE PANEL TO EXAMINE.
6 REMOVE | 4 EXAMINE | |
PANEL |
| FURNACE |
TO EXAMINE | CASING | |
BURNER |
| |
FLAMES |
| |
3EXAMINE RETURN AIR DUCT CONNECTION
FIGURE 5: Furnace Examination Checkpoints - Upflow
3 EXAMINE RETURN | EXAMINE | 5 EXAMINE ENTIRE | ||
AIR DUCT | EXTERNAL | FURNACE CASING | ||
VENT PIPE | ||||
CONNECTION | SHOWN IN ALL | |||
| ||||
| DRAWINGS | |||
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1 EXTERNAL HEAT EXCHANGER INTERNAL VENT COMBUSTION AIR PIPE. MUST REMOVE PANEL TO EXAMINE.
3EXAMINE RETURN AIR DUCT CONNECTION
4 EXAMINE |
|
|
|
| 4 EXAMINE |
FURNACE |
| 6 REMOVE | 6 REMOVE | FURNACE | |
CASING |
| CASING | |||
|
| PANEL | PANEL |
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| TO EXAMINE | TO EXAMINE |
| |
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| BURNER | BURNER |
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| FLAMES | FLAMES |
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FIGURE 6: Furnace Examination Checkpoints - Downflow
Unitary Products Group | 3 |
