Product Data 58EFA Horizontal Gas Furnace 50,000 125,000 Btuh Input GAS SUPPLY MANUAL SHUTOFF VALVE SEDIMENT TRAP UNION Carrier presents the 58EFA, a dedicated horizontal gas furnace that excels in the competitive market of mid-efficiency gas furnaces. The 58EFA furnace offers dependable and economical heating. The 58EFA utilizes an intermittent ignition system which ignites the pilot eliminating a gas-wasting continuous pilot. The 58EFA incorporates control of ignition, inducer, and blower operation into 2 printed-circuit boards, resulting in a reliable and uncomplicated system. Induced combustion contributes significantly to the heat transference efficiency of the 58EFA. A corrosion-resistant steel heat exchanger extracts heat in the 58EFA and conveys it to the airstream that warms the home. This heat exchanger is the clam-shell type utilized for years because of its reliability. All these features result in a furnace that will not only heat your home comfortably for many years to come, but do it with an Annual Fuel Utilization Efficiency (AFUE) of 80%. The 58EFA is easy to install, which means lower installation costs. At 50- in. long, it can be conveniently employed in either new or replacement applications. The furnace can be field reversed for left or right gas, electrical, and vent pipe connections and is equipped with adjustable blower speeds to fit most applications. Carrier makes adjusting blower speeds easy with a speed-tap selector located on the blower motor. There is no need to remove the blower or perform other complex procedures. Copyright 1993 Carrier Corporation This document was created with FrameMaker 4.0.4 Form 58EFA-2PD
With a Carrier gas furnace, your options are open when it comes to expanding your comfort system air conditioners, humidifiers, and electronic air cleaners are among the offerings. A factory-installed 40-va transformer, air conditioner relay, and multispeed blower simplify the installation of add-on options. Carrier s 58EFA Horizontal Gas Furnace heat exchangers are backed by a 10-year warranty. See your dealer for more details. 58EFA FEATURES/ BENEFITS Certifications The 58EFA units are A.G.A. and C.G.A. design certified for use with natural and propane gases. The efficiency is GAMA efficiency rating certified. The 58EFA surpasses California minimum seasonal efficiency requirements, and meets the oxides of nitrogen (NOx) emission levels set by South Coast and Bay Area Air Quality Management Districts in California. Warranty 10-year warranty on the heat exchangers, 1-year warranty on control boards. Your dealer has details. Intermittent Ignition No continuous-pilot flame to waste gas or cause problems. Redundant Gas Valve Shuts off gas to burners if 1 of the valves fails to close completely for any reason. Insulation Foil-faced insulation in heat exchanger section of the casing minimizes heat loss. Printed-Circuit Board Controls sequencing and furnace operation. Solid-state blower control actuates blower after main burners ignite to eliminate cold air blowing into rooms. Adjustable Blower Speed For precise airflow selection. Monoport Burners The burners are finely tuned for smooth, quiet combustion plus economical gas usage. C C 1 2 3 4 5 X X Y 1 2 3 4 D1 HONEYWELL G W C Y R HEAT EXCHANGER A91194 PRINTED-CIRCUIT BOARD A91333! WARNING Explosion hazard. Can cause serious injury or death. This device can malfunction if it gets wet. Never try to use a device that has been wet replace it. REV. A 97-3998 MPLS.. MN 55422 S8600H 100% SHUTOFF IP 90 SEC. L.O. 24V, 60 Hz PV=1A MAX., MV=1A MAX. AUTO IGNITION SYSTEMS ANSI Z21.20 If module has been used with vent damper, it will only work with damper connected. MV MV/PV PV (BURNER) 24V () 24V TH-W (OPT.) SPARK 1 2 3 4 5 6 7 8 9 INTERMITTENT IGNITION CONTROL A91334 INDUCER BLOWER A91335 2
MEETS DOE RESIDENTIAL CONSERVATION SERVICES PROGRAM STANDARDS. Before purchasing this appliance, read important energy cost and efficiency information available from your retailer. ama CANADIAN GAS ASSOCIATION R A PP R O VED Model number nomenclature Horizontal Gas-Fired Furnace 58EFA 050 120 12 Input Capacity 050 50,000 Btuh 075 75,000 Btuh 100 100,000 Btuh 125 125,000 Btuh Series Cooling Size (Airflow: 400 CFM per 12,000 Btuh) 12 1200 CFM 16 1600 CFM 20 2000 CFM Carrier accessories* ELECTRONIC AIR CLEANER HUMIDIFIER THERMOSTAT CATEGORY III VENT KIT GAS CONVERSION KIT NATURAL-TO-PROPANE* PROPANE-TO-NATURAL* UNIT SIZE 050-12 075-12 100-16 125-20 * Factory authorized and field installed. Gas conversion kits are A.G.A. recognized. 31KAX 49FH See Master Price Pages KGASW01012SP KGANP1901IID KGAPN1401IID MODEL 31KAX ELECTRONIC AIR CLEANER A91465 Cleans the air of smoke, dirt, and many pollens commonly found in the air. Saves on decorating and cleaning expenses. MODEL 49FH HUMIDIFIER A91365 By adding moisture to winter-dry air, a Carrier humidifier can often improve comfort and keep furniture, rugs, and draperies in better condition. Moisturizing household air also helps to retain normal body heat and provides comfort at lower temperatures. 3
8 7 3 4 5 6 2 1 A91336 NOTE: The 58EFA Furnaces are for use with natural gas. These furnaces can be field-converted for propane gas with a factory-authorized and listed accessory conversion kit. NOTE: Component location and configuration may be different than shown above. ➊ Burner Assembly with Intermittent Ignition (Inside) ➋ Gas Control Valve ➌ Vent Pipe Connection ➍ Inducer Motor Assembly ➎ Blower Assembly (Inside) ➏ Control Box ➐ Pressure Switch ➑ Heat Exchanger 4
Physical data UNIT SIZE 050-12 075-12 100-16 125-20 OUTPUT CAPACITY BTUH (Nonweatherized ICS) 40,000 60,000 80,000 100,000 INPUT BTUH* 50,000 75,000 100,000 125,000 SHIPPING WEIGHT (Lb) 144 153 175 197 CERTIFIED TEMP RISE RANGE ( F) 40 70 40 70 40 70 40 70 CERTIFIED EXT STATIC PRESSURE (In. wc) Heating 0.10 0.12 0.15 0.20 Cooling 0.50 0.50 0.50 0.50 AIRFLOW CFM Heating 955 1210 1330 1525 Cooling 1200 1280 1615 2015 LIMIT CONTROL HEATING BLOWER CONTROL * Gas input ratings are certified for elevations to 2000 ft. For elevations above 2000 ft, reduce ratings 4% for each 1000 ft above sea level. In Canada, derate the unit 10% for elevations 2000 to 4500 ft above sea level. Capacity in accordance with U.S. Government DOE test procedures. ICS Isolated Combustion System SPST Solid-State Time Operation BURNERS (Monoport) 2 3 4 5 GAS CONNECTION SIZE GAS VALVE (Redundant) Manufacturer Minimum Inlet Pressure (In. wc) Maximum Inlet Pressure (In. wc) IGNITION DEVICE 1/2-in. NPT Honeywell 4.5 (Natural Gas) 13.6 (Natural Gas) Intermittent Dimensions (In.) 1 3 16 5 8 1 3 16 A B 2 1 2 7 8 ELECTRICAL CONNECTION B 5 8 A AIR FLOW 7 8 10 26 5 8 4 VENT 1 7 8 CONNECTION 5 7 8 3 1 2 2 3 4 4 1 4 T-STAT CONNECTION 19 1 2 4 1 2 17 1 4 28 7 8 50 18 21 3 8 23 1 8 6 5 16 7 8 C ( NUMBER OF TUBES) COMBUSTION AIR CONNECTION 1 2 GAS CONNECTION A91337 UNIT SIZE UNIT WIDTH DUCT SUPPLY AND RETURN OPENINGS NUMBER OF HX A B C 050-12 13-1/2 11-1/8 2 075-12 13-1/2 11-1/8 3 100-16 17 14-5/8 4 125-20 20-1/2 18-1/8 5 5
CLEARANCES (In.) UNIT SIZE 050-12, 075-12, 100-16, and 125-20 SIDES 6* BACK 6* TOP 2* VENT CONNECTOR 6* FRONT CASING 6* FRONT SERVICE 30** * Measured from end of inducer motor. Performance data PSC Permanent Split Capacitor UNIT SIZE 050-12 075-12 100-16 125-20 DIRECT-DRIVE MOTOR Hp (PSC) 1/3 1/3 1/3 1/2 MOTOR FULL LOAD AMPS 7.9 8.5 8.5 10.3 RPM (Nominal) SPEEDS 1075 3 BLOWER WHEEL DIAMETER WIDTHS (in.) 10x8 10x8 12x9 12x12 FILTER SIZE (in.) (WASHABLE) 13x23x1 16x23x1 20x23x1 EFFICIENCY FURNACE MODEL 58EFA 050-12 075-12 100-16 125-20 CAPACITY* Nonweatherized ICS 40,000 60,000 80,000 100,000 AFUE %* Nonweatherized ICS 80.0 80.0 80.0 80.0 * Capacity and AFUE in accordance with U.S. Government DOE test procedures. California Seasonal Efficiencies based on California-specified procedures. ICS Isolated Combustion System UNIT SIZE 050-12 075-12 100-16 125-20 * Airflow values in cubic ft per minute (CFM), rounded to nearest 5 CFM. AIR DELIVERY CFM* (Without Filter) EXTERNAL STATIC PRESSURE (in. wc) SPEED 0.1 0.2 0.3 0.4 0.5 0.6 0.7 0.8 High 1455 1390 1315 1250 1200 1100 1000 850 Med 1225 1175 1125 1065 1000 930 830 725 Low 955 935 910 860 805 735 650 535 High 1565 1490 1425 1355 1280 1195 1095 1000 Med 1410 1355 1315 1225 1160 1090 1000 895 Low 1215 1190 1140 1090 1040 980 895 780 High 1945 1885 1795 1710 1615 1530 1415 1290 Med 1640 1600 1545 1490 1410 1335 1230 1120 Low 1340 1320 1295 1265 1220 1140 1050 905 High 2265 2210 2160 2090 2015 1940 1870 1790 Med 2015 1965 1920 1870 1800 1735 1660 1565 Low 1575 1525 1485 1450 1395 1315 1225 1170 6
Electrical data UNIT SIZE 050-12 075-12 100-16 125-20 UNIT VOLTS HERTZ PHASE 115 60 1 MINIMUM WIRE SIZE 14 14 12 12 MAXIMUM WIRE LENGTH* (Ft) 44 44 49 49 MAXIMUM UNIT AMPS 10.5 10.5 15 15 OPERATING VOLTAGE RANGE (Min Max) 104 127 MAXIMUM FUSE SIZE OR HACR-TYPE CKT BKR (Amps) 15 15 20 20 TRANSFORMER (24v) EXTERNAL CONTROL POWER AVAILABLE Heating 12VA Cooling 21VA AIR CONDITIONING BLOWER RELAY * Length shown is as measured 1 way along wire path between unit and service panel for maximum 2% voltage drop. Permissible limits of the voltage range at which the unit will operate satisfactorily. Time-delay fuse is recommended. 40VA Standard Typical wiring schematic FIELD 24-VOLT WIRING FIELD 115-, 208/230-, 460-VOLT WIRING FACTORY 24-VOLT WIRING FACTORY 115-, 208/230-, 460-VOLT WIRING FOUR WIRE G W Y R THERMOSTAT TERMINALS FIELD-SUPPLIED FUSED DISCONNECT 115-VOLT SINGLE PHASE 115-VOLT FIELD-SUPPLIED FUSED DISCONNECT TWO-WIRE HEATING- ONLY G W Y C R 24-VOLT TERMINAL BLOCK CONDENSING UNIT TWO WIRE 208/230- OR 460-VOLT THREE PHASE 208/230- VOLT SINGLE PHASE NOTE : 1. Connect Y-terminal as shown for proper cooling operation. 2. If any of the original wire, as supplied, must be replaced, use same type or equivalent wire. 3. Proper polarity must be maintained for 115-volt wiring. A91338 7
Typical installation A91339 Carrier Corporation Syracuse, New York 13221 2-94 Manufacturer reserves the right to discontinue, or change at any time, specifications or designs without notice and without incurring obligations. Book 1 4 Page 8 Catalog No. 523-832 Printed in U.S.A. PC 101 Form 58EFA-2PD Tab 6a 8a Replaces: 58EFA-1PD