SECTION 1—MODELS 58DXT, 58TMA, 58TUA, 58UHV, 58UXT, 58UXV, 330AAV, 330JAV, 331AAV, 331JAV, 333BAV,
AND 333JAV INDUCED-COMBUSTION, HOT SURFACE IGNITION, 2-SPEED AND VARIABLE-SPEED,
NON-CONDENSING FURNACES
PROCEDURE 1—INSTALL MAIN BURNER ORIFICES
NOTE:
See Fig. 1 or 2 for component location.
1. Turn off main gas and electrical supplies to furnace.
2. Remove control access door.
3. Turn furnace gas valve control knob or electric switch to OFF position.
4. Remove burner hold-down bracket.
5. Remove burners from manifold.
6. Remove and discard orifices from manifold.
7. Determine natural gas orifice size for correct input at installed altitude by using Table 2 (for upflow and upflow/horizontal models) or Table
3 (for downflow and downflow/horizontal models). (See also Fig. 3.)
Furnace gas input rate on rating plate is for installations at altitudes up to 2000 ft.
In the U.S.A., the input rating for altitudes above 2000 ft must be reduced by 4 percent for each 1000 ft above sea level.
Fig. 1—Upflow and Upflow/Horizontal, 2-Speed and
Variable-Speed, Non-Condensing Furnace
Compartment and Conversion Label Location
A95461
CONVERSION
RESPONSIBILITY
LABEL
CONVERSION
RATING
PLATE
BURNERS
CLEARANCE LABEL
FURNACE
RATING
PLATE
BURNER
HOLD–DOWN
BRACKET
MANIFOLD
GAS VALVE
Fig. 2—Downflow and Downflow/Horizontal, 2-Speed,
Non-Condensing Furnace Compartment
and Conversion Label Location
A95462
GAS VALVE
BURNER
HOLD–DOWN
BRACKET
CONVERSION
RESPONSIBILITY
LABEL
CONVERSION
RATING
PLATE
MANIFOLD
BURNERS
CLEARANCE LABEL
FURNACE
RATING
PLATE
→
Fig. 3—Conversion Rating Plate Label
(Used for Natural Gas, Non-Condensing, 2-Speed and Variable-Speed Furnaces)
A97180
CONVERSION KIT RATING PLATE - CARRIER CORP.
APPLIANCE MODELS
58MVP, 355MAV
323870-101
REV. B
Max. Inlet Gas Pressure
(Press. Max. D’Admission De Gaz)
Manifold
Pressure
13.6
3,386
4.5
1,121
0-2,000 ft.
(0 - 610 m)
3.2 - 3.8
797 - 946
Refer to installation manual
Respecter les instruction D’Installation
2%
5%
4%
10%
58TMA, 58DXT,
331AAV, 331JAV
58TUA, 58UXT,
58UHV, 58UXV,
330AAV, 330JAV,
333BAV, 333JAV
THIS APPLIANCE HAS BEEN CONVERTED TO USE NATURAL GAS FOR FUEL REFER TO KIT INSTRUCTIONS FOR CONVERSION
PROCEDURES. USE PARTS SUPPLIED BY CARRIER CORPORATION AND INSTALLED BY QUALIFIED PERSONNEL. SEE EXISTING
RATING PLATE FOR APPLIANCE MODEL NO. AND INPUT RATING.
NOTE: Furnace gas input rate on rating plate is for installations up to 2000 ft. above sea level. In U.S.A. the input rating for altitudes above
2000 ft. must be derated (per chart below) for each 1000 ft above sea level. In Canada the input rating must be derated (per chart below) for
altitudes of 2000 ft. to 4500 ft. above sea level.
Pression
Tubulure
High Heat
1.3 - 1.7
324 - 423
4%
10%
Min. Inlet Gas Pressure
(Press. Min. D’Admission DeGaz)
2,000 - 10,000 ft
(610 - 3050 m)
KIT NO. KGAPN20012SP
FUEL USED: NATURAL GAS
(For Purpose of Input Adjustment)
(Pour L’Adjustment D’Entree)
A l t i t u d e
IN. W.C. (PO C.E.)
Pa
Low Heat
% DERATE
PER
1000 FT
% DERATE
FOR
2000-4500 FT
USA
CANADA
NATURAL GAS PRESSURE
—3—
→
→
