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Service and Maintenance Instructions
NOTE: Read the entire instruction manual before starting the
installation.
Index
SAFETY CONSIDERATIONS .....................................................1
CARE AND MAINTENANCE..................................................1-8
Air Filter Arrangement..........................................................2-3
Blower Motor and Wheel......................................................3-4
Cleaning Heat Exchanger......................................................4-5
Electrical Controls and Wiring .............................................5-6
Pilot ...........................................................................................6
Troubleshooting ........................................................................6
Unit Wiring Diagram................................................................7
Troubleshooting Chart ..............................................................8
SAFETY CONSIDERATIONS
Installing and servicing heating equipment can be hazardous due to
gas and electrical components. Only trained and qualified person-
nel should install, repair, or service heating equipment.
Untrained personnel can perform basic maintenance functions
such as cleaning and replacing air filters. All other operations must
be performed by trained service personnel. When working on
heating equipment, observe precautions in the literature, on tags,
and on labels attached to or shipped with the unit and other safety
precautions that may apply.
Follow all safety codes. In the United States, follow all safety
codes including the National Fuel Gas Code NFPA No. 54-
1992/ANSI Z223.1-1992 (NFGC). In Canada, refer to the current
edition of the National Standard of Canada CAN/CGA-B149.1-
and .2-M91 Natural Gas and Propane Gas Installation Codes
(NSCNGPIC). Wear safety glasses and work gloves. Have fire
extinguisher available during start-up and adjustment procedures
and service calls.
Recognize safety information. This is the safety-alert symbol
When you see this symbol on the furnace and in instructions or
manuals, be alert to the potential for personal injury.
Understand the signal word DANGER, WARNING, or CAU-
TION. These words are used with the safety-alert symbol. DAN-
GER identifies the most serious hazards which will result in severe
personal injury or death. WARNING signifies a hazard that could
result in personal injury or death. CAUTION is used to identify
unsafe practices which would result in minor personal injury or
product and property damage. NOTE is used to highlight sugges-
tions that will result in enhanced installation, reliability, or
operation.
Manufacturer reserves the right to discontinue, or change at any time, specifications or designs without notice and without incurring obligations.
Book 1 4
PC 101
Catalog No. 565-801
Tab 6a 8a
Induced-Combustion Furnaces
For Sizes 065-150 Series 120
Page
.
Printed in U.S.A.
®
Fig. 2-Model 58GFA Upflow
Form 58D,G-3SM
Pg 1
58DFA, 58GFA
ama
A PP R O VED
R
Fig. 1-Model 58DFA-
Downflow
A92057
11-93
Replaces: 58D,G-2SM
A92058

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Summary of Contents for Carrier 58DFA

  • Page 1: Table Of Contents

    Recognize safety information. This is the safety-alert symbol When you see this symbol on the furnace and in instructions or manuals, be alert to the potential for personal injury. Understand the signal word DANGER, WARNING, or CAU- TION.
  • Page 2: Care And Maintenance

    (1) 16 X 25 X 1 (1) 20 X 25 X 1* Cleanable 24-1/2 (2) 16 X 25 X 1* (1) 24 X 25 X 1 Cleanable * Factory provided with the furnace. Filters may be field modified by cutting as required. INSTALLATION...
  • Page 3 Replace access door and secure with 2 screws. h. Restore electrical power to furnace. 2. Upflow Each furnace requires 1 or 2 filters which are installed in the blower compartment. (See Fig. 4.) To remove filters for cleaning or replacement, proceed as follows: a.
  • Page 4: Cleaning Heat Exchanger

    1. Turn off gas and power to furnace. 2. Remove 2 screws from blower access door (downflow furnace only). Remove control and blower access doors. 3. Remove vent pipe enclosure (downflow furnace only) and disconnect vent pipe from relief box.
  • Page 5: Electrical Controls And Wiring

    Refer to Fig. 7 for proper location of pilot on burner assembly. TROUBLESHOOTING — Page 8 contains a troubleshooting chart. This chart can be a useful tool in isolating furnace operation problems. Beginning with the word ‘‘Start,’’ answer each question and follow the appropriate arrow to the next item.
  • Page 6 ONLY AUXILIARY 115-VOLT FIELD- J-BOX SUPPLIED CONTROL FUSED DISCONNECT 24-VOLT TERMINAL BLOCK FURNACE Fig. 8—Heating and Cooling Application Wiring Diagram FIELD 24-VOLT WIRING FIELD 115-, 208/230-, 460-VOLT WIRING FACTORY 24-VOLT WIRING FACTORY 115-VOLT WIRING THERMOSTAT TERMINALS CONDENSING UNIT WIRE NOTE:...
  • Page 8: Pilot

    NOTE: After replacing any component, verify correct operating sequence as indicated by bold arrows. Copyright 1993 CARRIER Corp. • 7310 W. Morris St. • Indianapolis, IN 46231 Manufacturer reserves the right to discontinue, or change at any time, specifications or designs without notice and without incurring obligations.

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