CAUTION: Selection of the correct Natural Gas Orifice requires the following information for the specific installation:
1) Altitude in of the installation (ft.).
2) Average energy content of the Natural Gas fuel from the local supplier (BTU/cu. ft.).
For detailed information and instructions for Orifice selection, see the Gas Furnace LP Conversion Kit Index 92-21519-59 and the latest edition of the
National Fuel Gas Code Handbook, or the National Standard of Canada, Natural Gas and Propane Installation Code, CAN B149.1.
CAUTION:This information is provided for replacement purposes only. Conversion for operation at High Altitude must be done using the kit specified
on the product specification sheet for the unit.
NOTE:This Orifice sizing chart is based on 25,000 BTU/HR per burner.
NOTE: Factory installed orifices are calculated and sized based on a Natural Gas heating valueof 1075 BTU/cu. ft. and an elevation of 0 - 3000 ft.
Elevation (ft.)
CAUTION: Selection of the correct LP Orifice requires the altitude of the specific installation (ft.).
For detailed information and instructions for Orifice selection, see the Gas Furnace LP Conversion Kit Index 92-21519-59 and the latest edition of the
National Fuel Gas Code Handbook (NFG), or the National Standard of Canada, Natural Gas and Propane Installation Code, CAN B149.1.
CAUTION:This information is provided for replacement purposes only. Conversion to LP or for operation at High Altitude should be done using the
kit(s) specified on the product specification sheet for the unit.
NOTE:This Orifice sizing chart is based on 25,000 BTU/HR per burner. Also, the chart is developed using the specified pressure setting of 10 in. water column
instead of the 11.0 in water column used by the NFG and CANB149.1.
NOTE: Orifices supplied in the LP Conversion Kit are calculated and sized based on an altitude of 0 - 4000 ft.
80% GAS FURNACE - ORIFICE SELECTION CHART - NATURAL GAS
80% GAS FURNACE - ORIFICE SELECTION CHART - LP
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92-42800-RGPT
Page 10
Exploded View
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Page 11
Blower Assembly
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Page 12
Burner Assembly
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Page 13
NOTES
Stk It is recommended that stock be maintained for this part.
N/A Not Applicable
1 Order GasValve for Natural Gas along with LP Conversion Kit.
2 Jacket is not available for replacement.
3 Replacement of Power Factor Choke is optional on units with 1/2 hp, X-13 and ECM, motors produced before
F1712. After approximate date code F1712, production units will be supplied with a JumperWire Assembly
(45-104318-01) in lieu of a Power Factor Choke. This Jumper Wire Assembly can be retrofitted to units built before
Date Code F1712.
DISCLAIMER: This document is intended to provide general replacement parts information to aid qualified
service personnel in the repair of these models. The complete Model and Serial Number of the unit under repair
should be specified when selecting and ordering replacement parts. Specifications and illustrations are subject
to change without notice. Document 92-42800-RGPT supersedes all previous parts lists for these models. See
http://www.rheempartslists.net/92-42800-RGPT for the latest revision of this document. The manufacturer
assumes no obligation for errors or omissions. Service personnel must verify the proper and safe operation of
equipment after the replacement of any original components.
P.O. Box 17010
Fort Smith, AR 72917-7010
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