Page 1: Table Of Contents
58SU0A 4---Way Multipoise Induced---Combustion, 80% AFUE Gas Furnace Input Capacities: 40,000 thru 100,000 Btuh Installation, Start---up, Operating and Service and Maintenance Instructions SAFETY CONSIDERATIONS ......PARTS REPLACEMENT INFORMATION GUIDE .
Page 2: Safety Considerations
SAFETY CONSIDERATIONS 1. Use only with type of gas approved for this furnace. Refer to the furnace rating plate. WARNING 2. Install this furnace only in a location and position as specified in the “Location” section of these instructions. 3. Provide adequate combustion and ventilation air to the FIRE, EXPLOSION, ELECTRICAL SHOCK, AND furnace space as specified in “Air for Combustion and CARBON MONOXIDE POISONING HAZARD...
Page 3 A190257 Fig. 1 - - Dimensional Drawing Table 1 – Dimensions ACCESSORY VENT FILTER CONNEC- MEDIA CABINET OUTLET TOP FLUE BOTTOM TION SHIP CABINET WIDTH WIDTH COLLAR ONLY INLET WIDTH IN. (MM) WT. LB. SIZE FURNACE SIZE IN. (MM) IN. (MM) IN.
Page 4: Codes And Standards
Duct Systems Air Conditioning Contractors Association (ACCA) Manual D, Sheet Metal and Air Conditioning Contract- ors National Association (SMACNA), or American Society of Heating, Refrigeration, and Air Condition- ing Engineers (ASHRAE) 2005 Fundamentals Hand- book Chapter 35 or 2004 HVAC Systems and Equip- ment Handbook Chapters 9 and 16.
Page 5 furnace. Put all used and new controls into containers 7. An ESD service kit (available from commercial sources) before touching ungrounded objects. may also be used to prevent ESD damage. THE BLOWER IS LOCATED BELOW THE BURNER SECTION, AND CONDITIONED AIR IS DISCHARGED UPWARD.
Page 6 CAUTION PERSONAL INJURY AND/OR PROPERTY DAMAGE Improper use or installation of this furnace may cause premature furnace component failure. This furnace is not permitted to be used for heating of buildings under construction. 18-IN. (457.2 mm) MINIMUM TO BURNERS A93044 Fig.
Page 7 WARNING WARNING CARBON MONOXIDE POISONING HAZARD FIRE HAZARD Failure to follow this warning could result in personal injury Failure to follow this warning could result in personal or death. injury, death and/or property damage. The operation of exhaust fans, kitchen ventilation fans, Do not install the furnace on its back or hang furnace with clothes dryers, attic exhaust fans or fireplaces could create a control compartment facing downward.
Page 8 c. TWO HORIZONTAL DUCTS require 1 square inch of The Standard Method: free area per 2,000 Btuh (1,100 mm /kW) of combined 1. The space has no less volume than 50 cubic feet per 1,000 input for all gas appliances in the space per Fig. 7 and Btuh of the maximum input ratings for all gas appliances Table 2.
Page 9: Upflow Installation
additional air MUST be provided using the methods de- NOTE: Side return- -air openings can be used in UPFLOW and scribed in the Outdoor Combustion Air Method section. most HORIZONTAL configurations. Do not use side return- -air Unusually tight construction is defined as construction with: openings in DOWNFLOW configuration.
Page 10 hand seamers to bend flange back and forth until it breaks off. Be careful of sharp edges. (See Fig. 14) FURNACE (OR COIL CASING Bottom Return Air Inlet WHEN USED) These furnaces are shipped with bottom closure panel installed in bottom return- -air opening.
Page 11: Horizontal Installation
HORIZONTAL INSTALLATION Side Return Air Inlet These furnaces are shipped with bottom closure panel installed in WARNING bottom return- -air opening. This panel MUST be in place when side return air inlet(s) is used without a bottom return air inlet. FILTER ARRANGEMENT FIRE, EXPLOSION, AND CARBON MONOXIDE POISONING HAZARD...
Page 12 openings using light assistance or a probe can be inserted for flange temporarily while the remaining attachment and sealing of sampling the airstream. The cover attachment shall prevent leaks. the coil are performed. Upflow and Horizontal Furnaces Downflow Furnaces Connect supply- -air duct to flanges on furnace supply- -air outlet. Connect supply- -air duct to supply- -air outlet on furnace.
Page 13 METHOD 2 USE (4) #8 x 3/4 (19 mm) SHEET METAL SCREWS FOR EACH STRAP. THE STRAPS SHOULD BE VERTICAL AGAINST THE FURNACE SIDES AND NOT PULL AWAY FROM THE FURNACE SIDES. METHOD 1 FOLD ALL STRAPS UNDER FURNACE AND SECURE WTH (4) #8 x 3/4 (19 mm) SHEET METAL SCREWS (2 SCREWS IN SIDE AND 2 SCREWS IN BOTTOM).
Page 14: Gas Piping
Return Air Connections WARNING WARNING FIRE OR EXPLOSION HAZARD FIRE HAZARD Failure to follow this warning could result in personal injury, death, and/or property damage. Failure to follow this warning could cause personal injury, death and/or property damage. If local codes allow the use of a flexible gas appliance connector, always use a new listed connector.
Page 15 Table 5 – Air Delivery - - CFM (With Filter) Test Airflow Delivery @ Various External Static Pressures Wire Lead Wire Lead Furnace Function External Static Pressure (IN. W.C.) Color Gray Cooling. Do not use for heating. 1530 1485 1445 1400 1355 1310...
Page 16 A02075 Fig. 19 - - Upflow Return Air Configurations and Restrictions A02163 Fig. 20 - - Downflow Return Air Configurations and Restrictions A180279 Fig. 21 - - Horizontal Return Air Configurations and Restrictions...
Page 17: Electrical Connections
Table 7 – Electrical Data Maximum Maximum Operating Voltage* Volts- Minimum Maximum Unit Wire Fuse or Range Unit Size Hertz- Wire Size Unit Amps Ampacity# Length‡ ft CKT BKR† Phase Maximum Minimum Amps 040-12 115-60-1 10.6 13.9 26 (8) 115-60-1 10.6 13.9 26 (8)
Page 18: 24- -V Wiring
ELECTRICAL CONNECTION TO J- -BOX Electrical Box on Furnace Casing Side WARNING FIRE OR ELECTRICAL SHOCK HAZARD Failure to follow this warning could result in personal injury, death, or property damage. If field- -supplied manual disconnect switch is to be mounted on furnace casing side, select a location where a drill or fastener cannot damage electrical or gas components.
Page 19 SW1 – SEE SW1 - FAULT INDUCER MOTOR DIAGNOSTIC RECALL/CLEAR LOW VOLTAGE LABEL FOR USE AND COMPONENT CONNECTOR OF THIS SWITCH TEST BUTTON INDUCER MOTOR AND COOL ON-DELAY AND HEAT OFF- IGNITER 115-VAC / NEUTRAL DELAY (JUMPER SHOWN IN CONNECTOR FACTORY DEFAULT POSITION) COOL HEAT...
Page 20: Venting
VENTING GENERAL VENTING REQUIREMENTS The furnace shall be connected to a listed factory built chimney Follow all safety codes for proper vent sizing and installation or vent, or a clay- -tile lined masonry or concrete chimney. Venting requirements, including local building codes, the current edition into an unlined masonry chimney or concrete chimney is of National Fuel Gas Code ANSI Z223.1/NFPA 54 (NFGC), prohibited.
Page 21: Appliance Application Requirements
If all of these conditions cannot be met, an alternative venting Table 9 – Minimum Allowable Input Rating of design shall be used, a listed chimney- -lining system, or a Type- -B Space- -Heating Appliance in Thousands of BTUH per Hour common vent.
Page 22 A180242 Fig. 25 - - Chimney Inspection Chart...
Page 23: Additional Venting Requirements
To prevent condensation in the furnace and vent system, the extension to the vent elbow with at least two field- -supplied, following precautions must be observed: corrosion- -resistant, sheet metal screws located 180_ apart. Fasten the vent connector to the flue extension with at least two 1.
Page 24 SEE NOTES: 1,2,4,7,8,9 on the page following these figures SEE NOTES: 1,2,4,5,6,7,8,9 on the page following these figures A03208 A03207 Fig. 26 - - Upflow Application- -Vent Elbow Up Fig. 29 - - Downflow Application- -Vent Elbow Left then Up SEE NOTES: 1,2,4,7,8,9 on the page following these figures A03214...
Page 25: Start- -Up, Adjustment, And Safety Check
VENTING NOTES FOR FIGURES 26 - - 31 1. For common vent, vent connector sizing and vent material: United States- -- -use the NFGC. 2. Immediately increase to 5- -inch (127 mm) or 6- -inch (152 mm) vent connector outside furnace casing when 5- -inch (127 mm) vent connector is required, refer to Note 1 above.
Page 26 b. Obtain average yearly gas specific gravity from local gas h. Install regulator seal cap. supplier. i. Leave manometer or similar device connected and pro- c. Find closest natural gas heat value and specific gravity ceed to next step. in Tables 12 through NOTE: If orifice hole appears damaged or it is suspected to have d.
Page 27: Check Safety Controls
it to the HEAT terminal (See Table 5 for lead color identi- CAUTION fication). Reconnect original lead to SPARE terminal. f. Repeat steps a through e. FURNACE OVERHEATING HAZARD g. When correct input rate and temperature rise is achieved, turn gas valve ON/OFF switch to OFF. Failure to follow this caution may result in reduced furnace life.
Page 28 if there is a restricted duct system or motor failure. If limit c. Restore power to furnace and set room thermostat control does not function during this test, cause must be above room temperature. determined and corrected. d. After normal start- -up, allow furnace to operate for 2 a.
Page 29 Table 12 – Gas Valve Outlet Pressure for Gas Heat Values at Table 13 – Gas Valve Outlet Pressure for Gas Heat Values at Altitude - - 40,000 Altitude - - 60,000 (Tabulated Data Based on 40,000 BTUH Input for 0-ft (0m) to (Tabulated Data Based on 60,000 BTUH Input for 0-ft (0m) to 5000-ft (1524 M) above sea level) 5000-ft (1524 M) above sea level)
Page 30: Service And Maintenance Procedures
Table 14 – Gas Valve Outlet Pressure for Gas Heat Values at Table 15 – Gas Valve Outlet Pressure for Gas Heat Values at Altitude - - 80,000 Altitude - - 100,000 (Tabulated Data Based on 80,000 BTUH Input, for 0-ft (0-m) to (Tabulated Data Based on 100,000 BTUH Input for 0-ft (0m) to 5000-ft (1524 M) above sea level) 5000-ft (1524 M) above sea level)
Page 31: Electrical Controls And Wiring
The electrical ground and polarity for 115- -v wiring must be WARNING properly maintained. Refer to Fig. 24 for field wiring information and to Fig. 38 for furnace wiring information. ELECTRICAL SHOCK, FIRE OR EXPLOSION NOTE: If the polarity is not correct, the STATUS LED on the HAZARD control will flash rapidly RED and prevent the furnace from Failure to follow this warning could result in personal...
Page 32: Care And Maintenance
CARE AND MAINTENANCE 3. Check blower motor and wheel for cleanliness each heating and cooling season. Clean as necessary. WARNING 4. Check electrical connections for tightness and controls for proper operation each heating season. Service as necessary. FIRE OR EXPLOSION HAZARD 5.
Page 33: Flame Sensor Cleaning
To ensure long life and high efficiency, clean accumulated dirt NOTE: Refer to Table 5 for motor speed lead relocation if leads and grease from blower wheel and motor annually. were not identified before disconnection. The inducer and blower motors are pre- -lubricated and require no 14.
Page 34: Cleaning Heat Exchanger
9. Clean the flame sensor with fine steel wool (0000 grade). Inducer assembly and elbow need not be removed from Do not use sand paper or emery cloth. collector box. 6. Disconnect gas supply line from gas valve. To reinstall ignitor and flame sensor: 7.
Page 35: Sequence Of Operation
(9.) Reinstall the insulation assembly. WARNING NOTE: If insulation assembly is damaged, do not attempt to repair, must be replaced with insulation kit. FIRE OR EXPLOSION HAZARD NOTE: Proper use of Personal Protective Equipment (PPE) must be followed, including safety glasses, gloves, and dust mask Failure to follow this warning could result in personal injury, when removing and reinstalling the heat exchanger insulation death and/or property damage.
Page 36: Fault Code Recall
(1.) The call for heat is satisfied (the connection between 2. Operation: The control must be powered and the “R” & “W” is removed). thermostat satisfied (no call for heat or cool). Depress and release the SW1 button once (less than 5 seconds); the (2.) Flame sense is lost (flame out), in which case the LED will flash the Fault Code History (up to 5 fault codes control will initiate an inter-purge (45s) and recycle.
Page 37 A180211 Fig. 38 - - Wiring Diagram...
Page 38 SERVICE GUIDE LED CODES STATUS CONTINUOUS OFF No 24 VAC Power to Control. FLASHING (RED, AMBER, GREEN) Power- -up verification of LED. CONTINUOUS ON (RED) Internal Control Fault Detected, control will try to Auto- -Reset, power cycle recommended. Replace control if power cycle doesn’t correct fault. CONTINUOUS ON (GREEN) Standby, Normal Operation, No Thermostat Requests.
Page 39: Parts Replacement Information Guide
Consumer Relations Department P.O. Box 4808 Syracuse, New York 13221- -4808 1- -800- -CARRIER Have available the model number, series number, and serial number located on the unit rating plate to ensure correct replacement part. Example of Model Number HEATING...
Page 40 Catalog No: 58SU0A ---03SI Copyright 2019 Carrier Corp. S 7310 W. Morris St. S Indianapolis, IN 46231 Edition Date: 09/19 Replaces: 58SU0A- -02SI Manufacturer reserves the right to change, at any time, specifications and designs without notice and without obligations.

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Carrier 58SU0A Series Installation, Start-Up, Operating And Service And Maintenance Instructions

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