W | ROTATE THE FRONT |
| COVER AS SHOWN |
| INSERT THE TOP |
| FLANGE OF THE |
| FRONT COVER |
| UNDER THE LIP |
| INSIDE THE BOX |
| ALL SIDE FLANGES |
| MUST BE OUTSIDE |
| OF THE BOX |
| ROTATE THE FRONT |
| COVER INWARD |
| MAKING SURE THAT |
| ALL SIDE FLANGES |
| ARE OUTSIDE OF THE |
| BOX. |
ANSI Z223.1/ NFPA 54 or National Standard of Canada, Natural Gas and Propane Installation Code, CSA B149.1. Installation of this furnace at altitudes above 2,000 ft. (610m) shall be made in accordance with the listed high Altitude Conversion Kit available with this furnace.
IMPORTANT:
See Table 15 for help in selecting orifices if orifice change is required. Furnace input rate and tempera- ture rise should be checked again after changing ori- fices to confirm the proper rate for the altitude.
Installations above 4,000 feet may require a pressure switch change. If required, use the BAYHALT*** Kit (High Altitude Accessory Kit) listed in PRODUCT DATA.
TABLE 14
PART NUMBERS FOR REPLACEMENT ORIFICES
DRILL | PART | DRILL | PART |
SIZE | NUMBER | SIZE | NUMBER |
44 | ORF00501 | 54 | ORF00555 |
45 | ORF00644 | 55 | ORF00693 |
46 | ORF00909 | 56 | ORF00907 |
47 | ORF00910 | 57 | ORF00908 |
48 | ORF01099 | 58 | ORF01338 |
49 | ORF00503 | 59 | ORF01339 |
50 | ORF00493 |
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REINSTALLATION OF THE BURNER BOX COVER
Figure 52 shows the correct way to reinstall the burner box cover if adjustment or replacement of the flame sensor, hot surface igniter, or main burner orifices have required removal of the cover.
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| TABLE 15 |
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Orifice |
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| ALTITUDE ABOVE SEA LEVEL |
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Twist Drill |
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Size If |
| and Orifice Required At Other Elevations | ||||||||||
Installed |
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At Sea |
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Level | 2000 | 3000 | 4000 | 5000 | 6000 | 7000 | 8000 | 9000 | 10000 | |||
42 | 42 |
| 43 |
| 43 | 43 | 44 | 44 | 45 |
| 46 | 47 |
43 | 44 |
| 44 |
| 44 | 45 | 45 | 46 | 47 |
| 47 | 48 |
44 | 45 |
| 45 |
| 45 | 46 | 47 | 47 | 48 |
| 48 | 50 |
45 | 46 |
| 47 |
| 47 | 47 | 48 | 48 | 49 |
| 49 | 50 |
46 | 47 |
| 47 |
| 47 | 48 | 48 | 49 | 49 |
| 50 | 51 |
47 | 48 |
| 48 |
| 49 | 49 | 49 | 50 | 50 |
| 51 | 52 |
54 | 54 |
| 55 |
| 55 | 55 | 55 | 55 | 56 |
| 56 | 56 |
55 | 55 |
| 55 |
| 55 | 56 | 56 | 56 | 56 |
| 56 | 57 |
56 | 56 |
| 56 |
| 57 | 57 | 57 | 58 | 59 |
| 59 | 60 |
57 | 58 |
| 59 |
| 59 | 60 | 60 | 61 | 62 |
| 63 | 63 |
58 | 59 |
| 60 |
| 60 | 61 | 62 | 62 | 63 |
| 63 | 64 |
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▲! WARNING
CARBON MONOXIDE POISONING HAZARD
Failure to follow the installation instructions for the venting system being placed into operation could re- sult in carbon monoxide poisoning or death.
START UP AND ADJUSTMENT
PRELIMINARY INSPECTIONS
With gas and electrical power “OFF”
1.Duct connections are properly sealed
2.Filters are in place
3.Venting is properly assembled
4.Blower door is in place
Flip the switch on main gas valve within the unit to the “OFF” position. Turn the external gas valve to “ON”. Purge the air from the gas lines. After purging, Check all gas connections for leaks with a soapy solution — DO NOT CHECK WITH AN OPEN FLAME. Allow 5 min- utes for any gas that might have escaped to dissipate. LP Gas being heavier than air may require forced venti- lation. Flip the switch on the gas valve in the unit to the “ON” position.
E | Outlet Pressure Boss | Regulator |
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Inlet Pressure |
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Boss (opt.) | On/Off Switch |
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| 33 |