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59SC5B
Single Stage, 4---Way Multipoise, 35---in. (889 mm)
Condensing Gas Furnace
Installation, Start---up, Operating and
Service and Maintenance Instructions
NOTE: Read the entire instruction manual before starting the installation.
SECTIONS
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CONDENSATE DRAIN
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INSTALLATION
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Parts Replacement GUIDE
Portions of the text and tables are reprinted from NFPA 54/ANSI Z223.1E, with permission of National Fire Protection Association,
Quincy, MA 02269 and American Gas Association, Washington DC 20001. This reprinted material is not the complete and official position
of the NFPA or ANSI on the referenced subject, which is represented only by the standard in its entirety.
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Use of the AHRI Certified TM Mark indicates a
manufacturer's participation in the program.
For verification of certification for individual
products, go to www.ahridirectory.org .
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Filter Size Information
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Air Delivery CFM
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Hangar Spacing
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Combustion- -Air Vent Pipe, Fitting & Cement Material..
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Maximum Allowable Exposed Vent Lengths Insulation
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Related Manuals for Carrier 59SC5B
Summary of Contents for Carrier 59SC5B
- Page 1 59SC5B Single Stage, 4---Way Multipoise, 35---in. (889 mm) Condensing Gas Furnace Installation, Start---up, Operating and Service and Maintenance Instructions NOTE: Read the entire instruction manual before starting the installation. SECTIONS TABLES Loose Parts Bag ........
- Page 2 Required Notice for Massachusetts Installations IMPORTANT The Commonwealth of Massachusetts requires compliance with regulation 248 CMR as follows: 5.08: Modifications to NFPA- -54, Chapter 10 2) Revise 10.8.3 by adding the following additional requirements: a. For all side wall horizontally vented gas fueled equipment installed in every dwelling, building or structure used in whole or in part for residential purposes, including those owned or operated by the Commonwealth and where the side wall exhaust vent termination is less than seven (7) feet above finished grade in the area of the venting, including but not limited to decks and porches, the following requirements shall be satisfied:...
- Page 3 SAFETY CONSIDERATIONS personnel 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 WARNING performed by trained service personnel. When working on heating equipment, observe precautions in literature, on tags, and on labels FIRE, EXPLOSION, ELECTRICAL SHOCK, AND attached to or shipped with furnace and other safety precautions CARBON MONOXIDE POISONING HAZARD...
- Page 4 9. The furnace may be used for construction heat provided that These furnaces are not approved for installation in recreational the furnace installation and operation complies with the first vehicles or outdoors. Single- -stage furnaces (40,000 through CAUTION in the LOCATION section of these instruc- 120,000) approved installation...
- Page 5 CODES AND STANDARDS Electrical Connections S US: Current edition of National Electrical Code (NEC) NFPA Follow all national and local codes and standards in addition to these instructions. The installation must comply with regulations of the serving gas supplier, local building, heating, S CANADA: Current edition of Canadian Electrical Code CSA plumbing, and other codes.
- Page 6 A180203 SHIP WT. FURNACE SIZE LB (KG) CABINET WIDTH OUTLET WIDTH BOTTOM INLET WIDTH AIR INTAKE 026E14--- 10 14--- 3/16 (361) 12--- 1/2 (319) 12--- 9/16 (322) 7--- 1/8 (181) 118.5 (53.7) 040E14--- 10 14--- 3/16 (361) 12--- 1/2 (319) 12--- 9/16 (322) 7--- 1/8 (181) 120 (54.4)
- Page 7 LOCATION WARNING CAUTION CARBON MONOXIDE POISONING / COMPONENT DAMAGE HAZARD PERSONAL INJURY AND/OR PROPERTY Failure to follow this warning could result in personal injury DAMAGE HAZARD or death and unit component damage. Improper use or installation of this furnace may result in Corrosive or contaminated air may cause failure of parts premature furnace component failure.
- Page 8 THE BLOWER IS LOCATED BELOW THE BURNER SECTION, AND CONDITIONED AIR IS DISCHARGED UPWARD. THE BLOWER IS LOCATED TO THE RIGHT OF THE BURNER SECTION, AND CONDITIONED AIR IS DISCHARGED TO THE LEFT. THE BLOWER IS THE BLOWER IS LOCATED TO THE LEFT LOCATED ABOVE THE OF THE BURNER SECTION, BURNER SECTION, AND...
- Page 9 AIR FOR COMBUSTION AND WARNING VENTILATION Introduction CARBON MONOXIDE POISONING HAZARD 2- - pipe Applications Failure to follow this warning could result in personal injury or death. When the furnace is installed as a 2-pipe furnace, no special The operation of exhaust fans, kitchen ventilation fans, provisions for air for combustion are required.
- Page 10 Indoor Combustion AirE NFPA & AGA of the floor. The minimum dimension of air openings shall be at least 3 in. (80 mm). See Fig. 7. Standard and Known- - Air- - Infiltration Rate Methods c. Combining space on different floor levels. The volumes of Indoor air is permitted for combustion, ventilation, and dilution, if spaces on different floor levels shall be considered as com- the Standard or Known- -Air- -Infiltration Method is used.
- Page 11 Table 3 – Minimum Free Area Required for Each Combustion Air Opening or Duct to Outdoors TWO OPENINGS OR TWO HORIZONTAL DUCTS SINGLE DUCT OR OPENING VERTICAL DUCTS (1 SQ. IN./2,000 BTUH) (1 SQ. IN./3,000 BTUH) (1 SQ. IN./4,000 BTUH) (1,100 SQ.
- Page 12 CONDENSATE TRAP NOTICE Condensate Trap - - Upflow Orientation When the furnace is installed in the upflow position, it is not The field- -supplied, accessory horizontal drain trap grommet is necessary to relocate the condensate trap or associated tubing. ONLY REQUIRED FOR DIRECT VENT APPLICATIONS. Refer to Fig.
- Page 13 Vent Pipe Clamp Condensate Trap Vent Elbow Clamp Relief Port Collector Box Plugs Vent Elbow Collector Box Plug Condensate Trap Relief Port Condensate Trap Outlet Pressure Switch Port UPFLOW TRAP CONFIGURATION 1 & 2 Stage Units A11307 Fig. 9 - - Upflow Trap Configuration (Appearance may vary)
- Page 14 Remove pressure switch tube from front pressure switch and discard. A new tube is shipped in the loose parts bag. Remove relief tube from relief Remove tube from relief port. port on condensate trap. Remove the screw that secures the trap to the collector box and remove trap.
- Page 15 Remove plug from If alternate vent position collector box. is required, loosen clamp DO NOT DISCARD. on inlet of vent elbow. Remove the screw that secures the trap to the collector box and remove trap. Unconverted Factory Configuration As Viewed in the Horizontal Right Orientation NOTE: Remove knockout in casing before re installing the condensate trap.
- Page 16 Remove the screw that secures the condensate trap to the collector box and remove trap. If alternate vent position is required, loosen clamp on vent elbow inlet. Remove relief tube from relief port on condensate trap. Remove front pressure switch tube and discard. A new tube is shipped in the Loose Parts bag.
- Page 17 CONDENSATE DRAIN CONNECTION c. All condensate piping is at least 3/4-in. PVC and there is a relief tee at the top of condensate drain piping as shown CAUTION in Fig. 18. NOTE: On narrower casings, it may be easier to remove the condensate trap, connect the drain line components and re-install FROZEN AND BURST WATER PIPE HAZARD the condensate trap.
- Page 18 6. From the outside of the casing, insert the angled end of the Z-pipe through drain hole in the left side of the casing and behind the inducer or gas valve. Allow the Z-pipe to temporarily rest on the blower shelf (upflow) or burner box (downflow).
- Page 19 misalignment of the drain pipe which may cause kinks in ATTACH ELBOW TO FORMED END the elbow or grommet. CONDENSATE TRAP OF GROMMET CUT FORMED END OFF 7. The remaining drain line can be constructed from field- - CONDENSATE DRAIN supplied 1/2- -in.
- Page 20 Evaporator Coil + + + + = Positive pressure < + = Pressure lower than areas with + − = Negative pressure Condensing Furnace Blower creates positive pressure. Positive pressure extends into coil condensate drain (no trap). < + < + <...
- Page 21 Ä Ä Ä Ä Ä Ä Ä Ä Ä Ä Evaporator Coil + + + Ä Ä Ä Ä Ä Ä Ä Ä Ä Ä Ä Ä Ä Ä Ä Ä Ä Ä Ä Ä 3/4” PVC Ä Ä Ä Ä Ä Ä Ä Ä Ä Ä Ä...
- Page 22 UPFLOW DOWNFLOW HORIZONTAL PERFORATED DISCHARGE DUCT 90° 90° FLANGE 120° 120° 120° A10493 Fig. 19 - - Duct Flanges Return Air Connections 3. Install another nut on other side of furnace base. (Install flat washer if desired.) WARNING 4. Adjust outside nut to provide desired height, and tighten in- side nut to secure arrangement.
- Page 23 3. Construct plenum to dimensions specified in Table 8 and WARNING Fig. 30. 4. Install special base coil assembly or coil box as shown in in Fig. 30. FIRE, EXPLOSION, AND CARBON MONOXIDE POISONING HAZARD NOTE: It is recommended that the perforated supply- -air duct flanges be completely removed from furnace when installing the Failure to follow this warning could result in personal injury, death, or property damage.
- Page 24 or suspended furnaces closer than 12- -in. (305 mm) to joists. The sheet metal MUST extend underneath the furnace casing by 1- -in. (25 mm) with the door removed. The bottom closure panel on furnaces of widths 17- -1/2- -in. (445 mm) and larger may be used for flame roll- -out protection when HORIZONTAL TOP RETURN NOT...
- Page 25 COMBUSTION - AIR PIPE (SEE VENTING SECTION) 30 IN. (762 mm) MIN. WORK AREA 2-IN. (51 mm) ROLLOUT PROTECTION REQUIRED Install 12” x 22” (305x559 mm) sheet metal in front of burner compartment area. The sheet metal MUST extend underneath the furnace casing by 1-in. (25 mm) with the door removed.
- Page 26 Supply Air Connections For a furnace not equipped with a cooling coil, the outlet duct shall be provided with a removable access panel. This opening shall be accessible when the furnace is installed and shall be of such a size that the heat exchanger can be viewed for possible openings using light assistance or a probe can be inserted for sampling the air stream.
- Page 27 Filter and Return Duct Sizing NOTICE Pressure drop must be taken into account when sizing filters, filter racks, IAQ devices, and associated system ductwork. See Table 5 for a comparison of Pressure Drop (initial/clean resistance to Design the duct system FIRST to determine how much airflow) versus Airflow for a variety of filter media types and sizes.
- Page 28 Table 6 – Filter Media Pressure Drop (Clean) Versus Face Velocity- - In. W.C. (Pa) Representative After-Market Filter Media* Factory-Accessory Face Velocity Washable Fiberglass* Pleated* (m/s) (1-in. / 2.5 cm) (1-in. / 2.5 cm) (2-in. / 5 cm) (1-in. / 2.5 cm) (2-in.
- Page 29 4-in. 21-in. Furnace Block Off 14-3/16 and 17-1/2-in. Plate Furnace 4-Ton or less, AC capacity airflow 1/2-in. Screws 20-in. Media Cabinet 16-in. Media Cabinet Media Cabinet Installation Media Cabinet Installation Option for Side Return 4-Ton or Less A/C Capacity 21- or 24-1/2-in. 21-in.
- Page 30 FURNACE FURNACE (OR COIL CASING WHEN USED) APPROVED COIL ASSEMBLY COIL BOX COMBUSTIBLE COMBUSTIBLE FLOORING FLOORING PLENUM OPENING DOWNFLOW SUBBASE SHEET METAL PLENUM FLOOR SHEET METAL PLENUM OPENING FLOOR FLOOR OPENING OPENING A10491 Fig. 30 - - Installation on Combustible Flooring Table 8 –...
- Page 31 General Requirements The duct system should be designed and sized according to accepted national standards such as those published by: Air Conditioning Contractors Association (ACCA Manual D), Sheet Metal and Air Conditioning Contractors National Association (SMACNA) or American Society of Heating, Refrigerating and Air Conditioning Engineers (ASHRAE) or consult The Air Systems Design Guidelines reference tables available from your local distributor.
- Page 32 Table 9 – Air Delivery - - CFM (With Filter) SPEED EXTERNAL STATIC PRESSURE (IN.W.C.) WIRE LEAD 2, 3 TAPS UNIT SIZE COLOR (Function) Black Cooling. Do not use for heating. 1045 1010 Yellow Alt Cooling or alt Heating Orange Alt Cooling or alt Heating 026E14--- 10 Blue...
- Page 33 GAS PIPING WARNING WARNING FIRE OR EXPLOSION HAZARD A failure to follow this warning could result in personal FIRE OR EXPLOSION HAZARD injury, death, and/or property damage. Failure to follow this warning could result in personal If local codes allow the use of a flexible gas appliance injury, death, and/or property damage.
- Page 34 ELECTRICAL CONNECTIONS Table 10 – Maximum Capacity of Pipe NOMINAL LENGTH OF PIPE --- FT (M) IRON PIPE WARNING SIZE (3.0) (6.0) (9.1) (12.1) (15.2) IN. (MM) 1/2 (13) ELECTRICAL SHOCK, FIRE OR EXPLOSION 3/4 (19) HAZARD 1 ( 25) Failure to follow safety warnings could result in 1-1/4 (32) 1400...
- Page 35 electrical box. Do not leave splice connections unprotected inside CAUTION the furnace. The J- -Box cover, mounting bracket and screws are shipped in the loose parts bag included with the furnace. See Fig. 34 for J- -Box FURNACE MAY NOT OPERATE HAZARD mounting locations.
- Page 36 2. Install the threaded end of a strain- -relief bushing through 2. Align the J- -Box bracket with the pilot holes inside the the J- -Box bracket and the furnace casing. Strain- -relief furnace casing. bushing should be installed so that the bushing can be 3.
- Page 37 FIELD 24-V WIRING FIELD 115-, 208/230-, 460-V WIRING FACTORY 24-V WIRING FACTORY 115-V WIRING NOTE 2 THERMOSTAT FIVE WIRE FIELD-SUPPLIED TERMINALS DISCONNECT THREE-WIRE HEATING-ONLY 208/230- OR BLOWER DOOR SWITCH 460-V THREE PHASE 208/230-V SINGLE PHASE AUXILIARY 115-V FIELD- J-BOX SUPPLIED NOTE 1 DISCONNECT CONDENSING...
- Page 38 A190023 Fig. 37 - - Example of Single Stage Furnace Control Table 11 – Electrical Data OPERATING VOLTAGE MINIMUM MAXIMUM MAXIMUM VOLTS--- MAXIMUM RANGE* UNIT WIRE WIRE FUSE OR CKT FURNACE SIZE HERTZ--- UNIT AMPACITY# SIZE LENGTH PHASE AMPS Maximum* Minimum* FT (M)} AMPS{...
- Page 39 A190081 Fig. 38 - - Thermostat Wiring Diagrams NOTES FOR THERMOSTAT WIRING DIAGRAMS 1. Heat pump MUST have a high pressure switch for HYBRID HEATr dual fuel applications. 2. Refer to outdoor equipment Installation Instructions for additional information and setup procedure. 3.
- Page 40 system - do not mix primers and cements from one manufacturer WARNING with a vent system from a different manufacturer. Follow the manufacturer’s instructions in the use of primer and cement and never use primer or cement beyond its expiration date. CARBON MONOXIDE POISONING HAZARD The safe operation, as defined by ULC S636, of the vent system is Failure to follow the steps outlined below for each appliance...
- Page 41 local code, the current edition of the National Fuel Gas Code, and Venting Systems the vent or liner manufacturer’s installation instructions. Care must WARNING be taken to prevent the exhaust gases from one appliance from contaminating the combustion air of other gas appliances. Do not take combustion air from inside the chimney when using CARBON MONOXIDE POISONING HAZARD ventilated combustion air or single- -pipe vent option.
- Page 42 obstacles such as inside corners, windows, doors or other appliances. It NOTICE is less prone to icing conditions, and it often has less visible vent vapors. Sidewall terminations may require sealing or shielding of building OPTIONAL VENTING BELOW THE FURNACE surfaces with a corrosive resistance material due to the corrosive The venting system may be positioned below the furnace properties of combustion products from the vent system, as well as...
- Page 43 required by National code authorities. Allowable vent terminations Size the Vent and Combustion Air Pipes are shown in Fig. 55. The combustion air pipe terminates in a General well- -ventilated attic or crawl space. Follow the clearances as Furnace combustion air and vent pipe connections are sized for shown in Fig.
- Page 44 TO CODE- - APPROVED DRAIN OR CONDENSATE PUMP Recommend “T” fitting with 4--inch minimum height standpipe (A) of same diameter or larger extending upward. Dry Well Dry Well (water tight Dry Well and removable) (water tight (water tight and removable) and removable) Representative drawing only, some models may vary in appearance.
- Page 45 Recommended Combustion Air Inlet Moisture Trap 1. Measure the individual distance from the furnace to the ter- mination for each pipe. Recommended to prevent moisture from trickling into the furnace 2. Count the number of elbows for each pipe. vestibule, a trap can be installed in the intake air pipe near the furnace.
- Page 46 6. Install the insulation per the insulation manufacturer’s in- Near Furnace Vent Connections stallation instructions. Offsets in the vertical portion of the vent pipe should be made with NOTE: Pipe length (ft. / M) specified for maximum pipe lengths 45 deg. elbows instead of 90 deg. elbows. Short horizontal runs of located in unconditioned spaces cannot exceed total allowable pipe vent pipe are difficult to pitch correctly and may trap water in the length as calculated from Table 16.
- Page 47 Installing the Vent Pipe Adapter and Combustion Air NOTE: The rubber coupling that attaches to the vent pipe adapter must be used. The adapter seals the vent pipe to the casing and Pipe Adapter reduces the strain on the vent elbow attached to the inducer. WARNING 1.
- Page 48 TABS ON THE INDUCER OUTLET RESTRICTOR SNAP INTO THE SLOTS AT THE OUTLET OF THE INDUCER FOR USAGE: SEE MAXIMUM EQUIVALENT VENT LENGTH TABLE (10FT. (3.1 M) OF VENT OR LESS ONLY) A170006 Fig. 44 - - Inducer Vent Elbow Table 13 –...
- Page 49 15. Wipe excess cement from joint. A continuous bead of ce- 11. Slide the end of the coupling with notches in it over the ment will be visible around perimeter of a properly made standoffs in the vent pipe adapter. joint.
- Page 50 Holes in the roof for direct- -vent two- -pipe terminations should be guidelines provided in section “Locating The Vent Termination” in spaced no more than 18 in. (457 mm) apart to help avoid vent gas this instruction. recirculation into combustion air intake. 1.
- Page 51 Table 14 – Approved Combustion-Air and Vent Pipe, Fitting and Cement Materials (U.S.A. Installations) MATERIALS 1. All pipe, fittings, primers*, and solvents* must conform to American National Standards Institute (ANSI) standards and American Society for Testing and Materials (ASTM) standards or ULC S636 where required by code. 2.
- Page 52 Table 15 – Maximum Allowable Exposed Vent Length in Unconditioned Space - - Ft. / M Unit Size 26,000* BTUH 0” Insulation 3/8” Insulation 1/2” Insulation Pipe Dia. 1½ 1½ 1½ Winter Design Temp --- 20 ° F --- 40 Unit Size 40,000* BTUH 60,000 BTUH...
- Page 53 Table 16 – Maximum Equivalent Vent Length - - Ft. NOTE: Maximum Equivalent Vent Length (MEVL) includes standard and concentric vent termination and does NOT include elbows. Use Table 17 - Deductions from Maximum Equivalent Vent Length to determine allowable vent length for each application. Unit Size 26,000 40,000...
- Page 54 Venting System Length Calculations The Total Equivalent Vent Length (TEVL) for EACH combustion air or vent pipe equals the length of the venting system, plus the equivalent length of elbows used in the venting system from Table 17. Standard vent terminations or factory accessory concentric vent terminations count for zero deduction. See vent system manufacturer’s data for equivalent lengths of flexible vent pipe or other termination systems.
- Page 55 A190032 Fig. 45 - - Inside Corner Termination Inside Corner Terminations Inside corner vent terminations are permitted provided that: S Only two exterior walls come together to form an angle of 90 degrees to 135 degrees. There are no other exterior walls attached to either wall to form an alcove.
- Page 56 Rotate vent elbow to required position. Any other unused knockout may be used for combustion air connection. Rotate vent elbow to required position. & UPFLOW LEFT CONFIGURATION DOWNFLOW LEFT CONFIGURATION A11309A A11311A Rotate vent elbow to required position. Any other unused Any other unused knockout may be used knockout may be used...
- Page 57 ALTERNATE COMBUSTION AIR CONNECTIONS HORIZONTAL LEFT ---VERTICAL VENT CONFIGURATION HORIZONTAL RIGHT ---VERTICAL VENT CONFIGURATION A11327A A11337 Alternate combustion air connection. Rotate vent elbow to required position. Vent Pipe Requires Internal Vent Kit See Product Data for Current Kit Number HORIZONTAL RIGHT ---LEFT VENT CONFIGURATION HORIZONAL LEFT ---LEFT VENT CONFIGURATION A11328A A11336...
- Page 58 NOTES FOR VENTING OPTIONS 1. Attach vent pipe adapter with gasket to furnace casing. 2. Align notches in rubber coupling over standoffs on adapter. Slide clamps over the coupling. 3. Slide vent pipe through adapter and coupling into vent elbow. 4.
- Page 59 A12326 NOTE: The following is based upon National codes for gas appliances and is provided as a reference. Refer to local codes which may supersede these standards and/or recommendations. (1 ) (2 ) Canadian Installations U.S. Installations Item Clearance Description (per CAN/CSA B149.1) (per ANSI Z223.1/NFPA 54) Clearance above grade, veranda, porch, deck, balcony...
- Page 60 A12325 NOTE: The following is based upon National codes for gas appliances and is provided as a reference. Refer to local codes which may supersede these standards and/or recommendations. (1 ) (2 ) Canadian Installations U.S. Installations Item Clearance Description (per CAN/CSA B149.1) (per ANSI Z223.1/NFPA 54) Clearance above grade, veranda, porch, deck, balcony or...
- Page 61 ¾ in. (222mm) for 3 in. (76mm) ¾ in. (172mm) for 2 in. (51mm) 12 in. (305mm) min. separation between bottom of combustion air and bottom of vent (Typ.) A13305 Fig. 54 - - Combustion Air and Vent Pipe Termination for Direct Vent (2- -Pipe) System Roof Termination (Preferred) Vent Maintain 12 in...
- Page 62 OPTIONAL TERMINATION BRACKET FOR 2-PIPE TERMINATIONS OPTIONAL 12 IN. (305 MM) MIN. BRACKET SEPARATION BETWEEN COUPLING BOTTOM OFCOMBUSTION 12 IN. (305 MM) MIN. SEPARATION AIR AND BOTTOM OF VENT. BETWEEN BOTTOM OF COMBUSTION AIR AND BOTTOM OF VENT. MAINTAIN 12 IN. (305 MM) CLEARANCE ABOVE HIGHEST ANTICIPATED 12-IN.
- Page 63 Ventilated Combustion Air intake pipe Pipe hangar 3” (76 mm) 12” (305 mm) Ventilated Combustion Air intake termination in crawl space CRAWL SPACE highest level of insulation ATTIC A10497 Fig. 57 - - Vent Terminations for Ventilated Combustion Air...
- Page 64 START- - UP, ADJUSTMENT, AND SAFETY Prime Condensate Trap with Water CHECK WARNING NOTICE CARBON MONOXIDE POISONING HAZARD Failure to follow these warnings could result in personal injury Important Installation and Start- -up Procedures or death. Failure to follow this procedure may result in a nuisance Failure to use a properly configured trap or NOT smoke or odor complaint.
- Page 65 CAUTION FURNACE DAMAGE HAZARD Failure to follow this caution may result in reduced furnace life. The 26,000 BTUH model has a lower nominal manifold pressure than other models. Do not adjust the natural gas manifold pressure above 1.8- -in. W.C. The 26,000 BTUH model can be identified by the green label affixed to the solenoid of the gas valve.
- Page 66 1. Obtain average yearly gas heat value (at installed altitude) NOTICE from local gas supplier. 2. Obtain average yearly gas specific gravity from local gas supplier. The NATURAL GAS manifold pressure adjustments in Tables 18 and 19 compensate for BOTH altitude AND gas heating 3.
- Page 67 Table 18 – Orifice Size and Manifold Pressure (in. w.c.) for Gas Input Rate 40,000 BTUH to 120,000 BTUH SINGLE-STAGE FURNACE (TABULATED DATA BASED ON 20,000 BTUH PER BURNER, DERATED 2%/1000 FT (305M) ABOVE SEA LEVEL) ALTITUDE RANGE HEAT VALUE 0.58 0.60 0.62...
- Page 68 Table 18 - - Orifice Size and Manifold Pressure (in. w.c.) for Gas Input Rate (Cont.) 40,000 BTUH to 120,000 BTUH SINGLE-STAGE FURNACE (TABULATED DATA BASED ON 20,000 BTUH PER BURNER, DERATED 2%/1000 FT (305M) ABOVE SEA LEVEL) ALTITUDE RANGE HEAT VALUE 0.58 0.60...
- Page 69 Table 19 – Orifice Size and Manifold Pressure (in. w.c.) for Gas Input Rate 26,000 BTUH ONLY ORIFICE SIZE* AND MANIFOLD PRESSURE (IN WC) FOR GAS INPUT RATE (TABULATED DATA BASED ON 13,000 BTUH PER BURNER, DERATED 2%/1000 FT (305M) ABOVE SEA LEVEL ALTITUDE SPECIFIC GRAVITY OF NATURAL GAS AVG.
- Page 70 Table 21 (Continued) - - Orifice Size and Manifold Pressure (in. w.c.) for Gas Input Rate 26,000 BTUH ONLY ORIFICE SIZE* AND MANIFOLD PRESSURE (IN WC) FOR GAS INPUT RATE (TABULATED DATA BASED ON 13,000 BTUH PER BURNER, DERATED 2%/1000 FT (305M) ABOVE SEA LEVEL 7001 (2134) 8000...
- Page 71 Adjust Manifold Pressure Burner Flame NOTE: There are two manifold pressure tables in these instructions. USE TABLE 19 FOR THE LOW CAPACITY Burner 26,000 BTUH MODELS. The low capacity model can be identified by the green label affixed to the top of the gas valve. For all other models, see Table 18.
- Page 72 temperature measurements, due to possible changes in duct static blower motor lead from control HEAT terminal. See Fig. 37. Select desired blower motor speed lead from one of the other pressure and airflow. motor leads and relocate it/them to HEAT (heating blower tap) CAUTION terminal(s).
- Page 73 3. Record amp draw across terminals when furnace is in low c. Turn on 115- -v power to furnace. heat and after blower starts. d. Set thermostat to “call for heat” and wait 1 minute. When 4. Set heat anticipator on thermostat per thermostat instruc- low pressure switch is functioning properly, hot surface tions and install on subbase or wall.
- Page 74 A190099 Fig. 63 - - Service Label Information...
- Page 75 Table 22 – Gas Rate (CU ft./hr) SECONDS SECONDS SIZE OF TEST DIAL SIZE OF TEST DIAL FOR 1 FOR 1 1 Cu Ft. 2 Cu Ft. 5 Cu Ft. 1 Cu Ft. 2 Cu Ft. 5 Cu Ft. REVOLUTION REVOLUTION 1800 1636...
- Page 76 SERVICE AND MAINTENANCE label below the reference location in inches of water column, “W.C.” The maximum and minimum break point of the switch is PROCEDURES +/- - 0.05 inches of water column from the nominal break point of Untrained personnel can perform basic maintenance functions such the switch.
- Page 77 3. Remove the Main/Control door (the upper door on upflow Checklist installations). 1. Put away tools and instruments. Clean up debris. 4. BRIEFLY disconnect and reconnect ONE of the main limit 2. Verify that the jumper is removed from the TEST/TWIN wires.
- Page 78 WARNING WARNING ELECTRICAL SHOCK, FIRE OR EXPLOSION CARBON MONOXIDE POISONING AND FIRE HAZARD HAZARD Failure to follow this warning could result in personal Failure to follow this warning could result in personal injury or death, or property damage. injury, death and/or property damage. Before installing, modifying, or servicing system, main Never operate furnace without a filter or filtration device electrical disconnect switch must be in the OFF position and...
- Page 79 (clips) on blower wheel vanes. Do not bend wheel or blades as balance will be affected. 7. If greasy residue is present on blower wheel, remove wheel from the blower housing and wash it with an appropriate degreaser. To remove wheel: NOTE: The DIBC composite wheel used in some models should be cleaned with mild soapy water only.
- Page 80 proper rotation and speed changes between heating and 13. Support the burner assembly and remove the screws that at- cooling by jumpering R to G and R to Y on furnace control tach the burner assembly to the heat exchanger cell panel. thermostat terminals.
- Page 81 13. Install the gas pipe to the gas valve. b. Cold reading should be between 40 ohms and 70 ohms. 5. Remove igniter assembly. WARNING a. Using a 1/4- -in. driver, remove the two screws securing the igniter mounting bracket to the burner assembly See Fig. FIRE OR EXPLOSION HAZARD b.
- Page 82 4. Turn electric switch on gas valve to OFF. adjustment of manifold pressure, insufficient or poor quality 5. Disconnect external drain from condensate drain elbow or combustion air, improper vent termination, incorrect size or drain extension pipe inside the furnace and set aside. damaged manifold orifice(s), improper gas, or a restricted heat 6.
- Page 83 WINTERIZATION NOTE: After cleaning, inspect the heat exchangers to ensure they are free of all foreign objects that may restrict flow of combustion CAUTION products. 8. Reverse items 6 through 1 for reassembly. 9. Refer to furnace wiring diagram and reconnect wires to UNIT AND PROPERTY DAMAGE HAZARD flame rollout switch, gas valve, igniter, and flame sensor.
- Page 84 SEQUENCE OF OPERATION main energized for a 15- -sec post- -purge period. The blow- er motor BLWM and air cleaner terminal EAC- -1 will NOTE: Furnace control must be grounded for proper operation or remain energized for 90, 120, 150, or 180 sec (depending control will lock out.
- Page 86 A190093 Fig. 69 - - Troubleshooting Guide (Cont)
- Page 87 3344442- -2 Rev. B Fig. 70 - - Wiring Diagram...
- Page 88 -authorized replacement parts, kits, or accessories when modifying this product. Catalog No: 59SC5B---01SI Copyright 2019 Carrier Corp. S 7310 W. Morris St. S Indianapolis, IN 46231 Edition Date: 04/19 Manufacturer reserves the right to change, at any time, specifications and designs without notice and without obligations.