| SERVICE |
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PROCEDURES |
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| Continued |
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Changing Burner Orifice | Burner | ||
1. | Shut off gas supply to |
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| heater. |
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2. | Remove lower front |
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| access panel on heater. | Orifice | |
3. | Disconnect burner tube | ||
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| from orifice holder (see | Burner | |
| Figure 25). | ||
| Tube | ||
4. | Remove orifice holder | ||
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| from burner (see Figure |
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| 25). |
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5. | Use socket or |
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| wrench to remove the old | Orifice | |
| orifice from the orifice | ||
| Holder | ||
| holder. |
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6. | Clean and replace orifice, | Figure 25 - Orifice Location (35,000 BTU/Hr Burner Shown) | |
| or replace with new | ||
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| orifice. |
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7.Turn on gas to heater and check for gas leaks. Apply
a mixture of liquid soap and water to all joints. Bubbles forming show a leak. Correct all leaks at once.
8.Replace lower front access panel.
Figure 26 - Orifice
BLOWER |
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| Fan Switch |
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WIRING |
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| (Off/On/Auto) |
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| Auto |
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DIAGRAM |
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| Off |
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(For Models With |
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| On |
| Fan | |
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Blower Assembly) |
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| Red | |
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| Switch | ||
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| Black Blue |
| (N.O.) | |
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| Black |
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| Blower |
| 110/115 V.A.C. |
| Motor | |||
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| Black |
| Red | |
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| White |
| White | |
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| Green |
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