Carrier 59SC2C Series Installation, Start-Up, Operating And Service And Maintenance Instructions
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Carrier 59SC2C Series Installation, Start-Up, Operating And Service And Maintenance Instructions

Single stage 4-way multipoise condensing gas furnace series 1
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59SC2C
Single Stage 4---Way Multipoise
Condensing Gas Furnace
Series 1
Installation, Start---up, Operating and
Service and Maintenance Instructions
NOTE: Read the entire instruction manual before starting the
installation.
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General
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Introduction
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Upflow
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Downflow
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Horizontal
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INSTALLATION
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Upflow
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Downflow
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Horizontal
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Accessories
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General
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Materials
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Installing the Termination
General
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Thermostat Setup Switch
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PARTS REPLACEMENT GUIDE
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Loose Parts Bag
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Filter Size Information
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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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Deductions from Maximum Equivalent Vent Length
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Blower Off Delay Setup Switch
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Use of the AHRI Certified
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manufacturer's participation in the program. For
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go to www.ahridirectory.org.
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Portions of the text and tables are reprinted from NFPA 54/ANSI
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Z223.1- -2012E, with permission of National Fire Protection
Association, Quincy, MA 02269 and American Gas Association,
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Washington DC 20001. This reprinted material is not the complete
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and official position of the NFPA or ANSI on the referenced
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subject, which is represented only by the standard in its entirety.
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  • Page 1: Table Of Contents

    59SC2C Single Stage 4---Way Multipoise Condensing Gas Furnace Series 1 Installation, Start---up, Operating and Service and Maintenance Instructions NOTE: Read the entire instruction manual before starting the Thermostat Setup Switch ......
  • 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

    SAFETY CONSIDERATIONS CAUTION WARNING CUT HAZARD Failure to follow this caution may result in personal injury. FIRE, EXPLOSION, ELECTRICAL SHOCK, AND CARBON MONOXIDE POISONING HAZARD Sheet metal parts may have sharp edges or burrs. Use care and wear appropriate protective clothing, safety glasses and Failure to follow this warning could result in dangerous gloves when handling parts, and servicing furnaces.

  • Page 4: Codes And Standards

    13. These furnaces SHALL NOT be installed directly on carpet- regulations of the serving gas supplier, local building, heating, ing, combustible tile, or any other combustible material oth- plumbing, and other codes. In absence of local codes, the er than wood flooring. In downflow installations, factory installation must comply with the national codes listed below and accessory floor base MUST be used when installed on com- all authorities having jurisdiction.

  • Page 5: Electrostatic Discharge (Esd) Precautions

    Condensate Drain Connection 2. Firmly touch the clean, unpainted, metal surface of the fur- nace chassis which is close to the control. Tools held in a S US: National Standard Plumbing Code 2009, Section 8.7. person’s hand during grounding will be satisfactorily dis- S Canada: National Plumbing Code of Canada 2010 in Canada.
  • Page 6 A12267 59SC2 SHIP WT. LB (KG) FURNACE SIZE CABINET WIDTH OUTLET WIDTH BOTTOM INLET WIDTH AIR INTAKE 040--- 10 121.0 (55.0) 14--- 3/16 (361) 12--- 1/2 (319) 12--- 9/16 (322) 7--- 1/8 (181) 060--- 12 125.0 (56.8) 040--- 12 132.0 (60.0) 060--- 16 17--- 1/2 (445) 15--- 7/8 (403)
  • Page 7 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 8: Location

    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 9: Air For Combustion And Ventilation

    CAUTION WARNING FIRE HAZARD FURNACE CORROSION HAZARD Failure to follow this warning could result in personal Failure to follow this caution may result in furnace damage. injury, death and/or property damage. Air for combustion must not be contaminated by halogen Do not install the furnace on its back or hang furnace with compounds, which include fluoride, chloride, bromide, and control compartment facing downward.
  • Page 10 The opening shall commence within 12 in. (300 mm) of the The following requirements apply to the Standard Method and to ceiling. Appliances in the space shall have clearances of at least 1 the Known Air Infiltration Rate Method. in. (25 mm) from the sides and back and 6 in. (150 mm) from the 1.

  • Page 11: Minimum Free Area Required

    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 * Minimum opening size is 100 sq in. (64516 sq. mm) with *Minimum dimensions of 3‐in. (76mm) minimum dimensions of 3‐in. (76mm) NOTE: Use any of the following combinations of openings: { Minimum of 3‐in. (76mm) when type‐B1 vent is used. A &...

  • Page 13: Condensate Trap

    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 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

    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. 14. 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 2. To allow for servicing the trap, the condensate drain elbow Z-pipe through drain hole in the left side of the casing and in the loose parts bag can be used to make a coupler to behind the inducer or gas valve.
  • Page 19 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 20 Open standpipe for coil Evaporator Coil or humidifier drain + + + 3/4” PVC Air gap here 3/4” PVC Condensing Furnace bag.) Open standpipe (1/2” CPVC to 3/4” PVC Air gap required when another drain is connected adapter from loose parts to furnace drain.
  • Page 21 INSTALL CLAMPS ON DRAIN TUBE Attach elbow to condensate trap ATTACH DRAIN TUBE TO CONDENSATE DRAIN TRAP PULL DRAIN STUB Cut formed end off THROUGH CASING condensate drain Formed end of elbow grommet Connect short end of “Z” pipe to modified drain elbow Factory supplied 1/2 in.
  • Page 22 INSTALLATION Leveling Legs (If Desired) In upflow position with side return inlet(s), leveling legs may be NOTICE used. See Fig. 23. Install field- -supplied, 5/16 x 1- -1/2 in. (8 x 38 mm) (max) corrosion- -resistant machine bolts, washers and nuts. NOTE: Bottom closure must be used when leveling legs are used.

  • Page 23: Filter Arrangement

    Return Air Connections Suspended Furnace Support The furnace must be supported under the entire length of the WARNING furnace with threaded rod and angle iron. See Fig. 31. Secure angle iron to bottom of furnace as shown. Roll- - Out Protection FIRE HAZARD Provide a minimum 12- -in.
  • Page 24 There are no provisions for an internal filter rack in these furnaces. An external filter is required and is purchased separately. A field supplied accessory air cleaner may also be used in place of the filter rack. For upflow applications, the filter can be installed on either side of the furnace, the bottom of the furnace or any combination of side and bottom of the furnace.
  • Page 25 Table 5 – Filter Media Pressure Drop (Clean) Versus Airflow - - In. W.C. (Pa) Representative After-Market Filter Media* 14 x 25 Filter Factory-Accessory Factory-Accessory (356 x 635 mm) Washable Media* Fiberglass* Pleated* (1-in. / 2.5 cm) (4-in. / 10 cm) (1-in.
  • Page 26 Table 7 – Air Filter Selection and Duct Sizing - - In. (mm) FILTER SIZE FURNACE CASING WIDTH FILTER TYPE SIDE BOTTOM RETURN RETURN 16 x 25 x 3/4 14 x 25 x 3/4 14 ---3/16{ (360) Washable* (406 x 635 x 19) (356 x 635 x 19) 16 x 25 x 3/4 16 x 25 x 3/4...

  • Page 27: Opening Dimensions

    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. 21 - - Installation on Combustible Flooring Table 8 –...
  • Page 28 UPFLOW DOWNFLOW HORIZONTAL PERFORATED DISCHARGE DUCT 90° 90° FLANGE 120° 120° 120° A10493 Fig. 22 - - Duct Flanges 5/ 16  (8mm) (8mm) 5/ 16   (44mm)  (44mm) (8mm)  BOTTOM CLOSURE PANEL (8mm) 5/ 16  (44mm) 3/ 4 ...
  • Page 29 ANY COMBINATION OF 1, 2, OR 3 PERMITTED. A11036 A11037 Fig. 26 - - Upflow Return Air Configurations and Restrictions Fig. 27 - - Downflow Return Air Configurations and Restrictions HORIZONTAL TOP RETURN NOT PERMITTED FOR ANY MODEL A11038 Fig. 28 - - Horizontal Right Return Air Configurations and Restrictions...
  • Page 30 HORIZONTAL LEFT TOP RETURN NOT PERMITTED FOR ANY MODEL. SEE TABLE BELOW. SUPPLY RETURN *RETURN *HORIZONTAL LEFT BOTTOM RETURN NOT PERMITTED FOR ALL MODELS. SEE TABLE BELOW. A14006 Fig. 29 - - Horizontal Left Return Air Configurations and Restrictions Table 9 – Horizontal Left and Right Return Air Connections CASING HORIZONTAL LEFT RETURN AIR CONNECTIONS WIDTH...
  • Page 31 COMBUSTION - AIR PIPE (SEE VENTING SECTION) 30 IN. (762 mm) MIN. WORK AREA 2-IN. (51 mm) ROLLOUT PROTECTION REQUIRED Install 12” x 22” (305 x 559 mm) sheet metal in front of burner compartment area. A11154 Fig. 30 - - Working Platform for Attic Installation NOTE: Local codes may require a drain pan and condensate trap when a condensing furnace is installed over a finished ceiling.

  • Page 32: Air Ducts

    AIR DUCTS NOTICE Many states, provinces and localities are considering or have implemented standards and/or restrictions on duct sizing practices, ductwork leakage, and/or ductwork thermal, airflow and electrical efficiencies. CONSULT LOCAL CODE OFFICIALS ductwork design performance requirements in your area. General Requirements The duct system should be designed and sized according to accepted national standards such as those published by: Air...

  • Page 33: Air Delivery Cfm

    Table 10 – Air Delivery - - CFM (With Filter) Test Airflow Delivery @ Various External Static Pressures Return Air Wire Lead Cooling CFM / Furnace Connection Color Tons Black 388 1145 1100 1060 1015 Blue 040-10 SIDE/BOTTOM Yellow Black 385 1215 1205 1205 1195 1155 1100 1045 Blue 060-12...

  • Page 34: Gas Piping

    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 35: Electrical Connections

    ELECTRICAL CONNECTIONS Table 11 – 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 36: J- -Box Installation

    115- -V Wiring Electrical Box on Furnace Casing Side NOTE: Check that duct on side of furnace will not interfere with Furnace must have a 115-v power supply properly connected and grounded. installed electrical box. NOTE: Proper polarity must be maintained for 115-v wiring. If 1.

  • Page 37: Alternate Power Supplies

    6. Attach furnace J- -Box cover to mounting bracket with 1/4- -in. female quick connect terminals to the two male screws supplied in loose parts bag. Do not pinch wires 1/4- -in. quick- -connect terminals on the control board between cover and bracket. marked EAC- -1 and EAC- -2.
  • Page 38 GROUND NEUTRAL LINE VOLTAGE ELECTRIC DISCONNECT SWITCH COPPER WIRE ONLY ALUMINUM WIRE A11146 A12226 Fig. 35 - - Field- -Supplied Electrical Box on Furnace Casing Fig. 34 - - Installing J- -Box (When Used)
  • Page 39 To HUM Terminal On To Humidifier Leads Furnace Control Board 24 V Coil To Humidifier Leads To Com/24V Screw Terminal on Thermostat Strip A11157 Fig. 36 - - Field- -supplied Isolation Relay for Humidifiers with Internal Power Supply FIELD 24-V WIRING FIELD 115-, 208/230-, 460-V WIRING FACTORY 24-V WIRING FACTORY 115-V WIRING...
  • Page 40 TWINNING AND/OR COMPONENT TEST BLOWER OFF-DELAY TERMINAL J2 JUMPER BLOWER OFF-DELAY HUMIDIFIER TERMINAL (24-VAC 0.5 AMP MAX.) 24-V THERMOSTAT TERMINALS TRANSFORMER 24-VAC CONNECTIONS TEST/TWIN 0.5 AMP@24VAC 3-AMP FUSE FUSE 3-AMP SEC-2 SEC-1 LED OPERATION & EAC-2 DIAGNOSTIC LIGHT PL1-LOW VOLTAGE MAIN HARNESS CONNECTOR 115-VAC(L2)NEUTRAL CONNECTIONS...

  • Page 41: Special Venting Requirements For Installations In Canada

    VENTING NOTE: Planning for the venting system should be done in conjunction with planning for the ductwork, drainage, and furnace accessories, such as air cleaners and humidifiers. Begin assembling the venting system AFTER the furnace is set in place in the required orientation. Venting for this furnace shall follow all Local codes for Category IV venting systems.

  • Page 42: Venting Systems

    Other gas appliances with their own venting system may also use WARNING the abandoned chimney as a raceway providing it is permitted by local code, the current edition of the National Fuel Gas Code, and the vent or liner manufacturer’s installation instructions. Care must CARBON MONOXIDE POISONING HAZARD be taken to prevent the exhaust gases from one appliance from Failure to follow the steps outlined below for each appliance...

  • Page 43: Vent Termination Kit For Direct Vent (2- -Pipe) Systems

    Table 13 – Vent Termination Kit for Direct Vent (2- -pipe) NOTICE Systems DIAMETER OF DIRECT VENT TERMINATION COMBUSTION AIR (2--- PIPE) OPTIONAL VENTING BELOW THE FURNACE SYSTEM AND VENT PIPES --- TERMINATION KIT IN. (mm) The venting system may be positioned below the furnace 2 ---in.
  • Page 44 properties of combustion products from the vent system, as well as WARNING protection of adjacent structures. NOTICE CARBON MONOXIDE POISONING HAZARD Failure to follow the instructions outlined below for each appliance being placed into operation could result in carbon RECOMMENDED SUPPORT FOR monoxide poisoning or death.

  • Page 45: Maximum Equivalent Vent Length

    rain cap could potentially direct the flue gas plume toward the In any configuration, it will be necessary to add the equivalent intake air stream and contaminate the incoming combustion air for length of the tee (15 feet/5 M) to the Total Equivalent Vent Length the furnace.

  • Page 46: Combustion Air And Vent Piping Insulation Guidelines

    that diameter pipe MAY NOT be used for venting the vent pipe are difficult to pitch correctly and may trap water in the vent pipe. See Fig. 41. furnace. Try the next larger diameter pipe Trapped water in the vent pipe may result in nuisance pressure NOTE: If the calculated Total Equivalent Vent Lengths results in switch tripping.
  • Page 47 3. Pilot drill the screw holes for the adapter in the casing and Hangar Spacing attach the vent pipe adapter to the furnace with sheet metal Pipe Diameter Material 1 ½-in. 2-in. 2 ½-in. 3-in. 4-in. screws (38 mm) (51 mm) (64 mm) (76 mm) (102 mm)
  • Page 48 8. Slide the adapter over the vent pipe and align the screw NOTICE holes in the adapter with the dimples in the furnace casing. 9. Pilot drill 1/8- -in. screw holes for the adapter in the casing and secure the adapter to the furnace with sheet metal RECOMMENDED SUPPORT FOR VENT screws.
  • Page 49 4. Disassemble loose pipe fittings. Clean and cement using required to be installed on the outlet of the inducer assembly. The same procedures as used for system piping. DO NOT CE- outlet restrictor is shipped in the loose parts bag. MENT POLYPROPYLENE FITTINGS.
  • Page 50 Table 15 – Maximum Allowable Exposed Vent Lengths Insulation Table - - Ft. / M Maximum Allowable Exposed Vent Length in Unconditioned Space Unit Size 40,000* BTUH 60,000 BTUH Uninsulated 3/8-in. Insulation 1/2-in. Insulation Uninsulated 3/8-in. Insulation 1/2-in. Insulation Pipe Dia. 1 ½...
  • Page 51 Table 16 – Maximum Equivalent Vent Length - - Ft. (M) 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. Single Stage 92% 40,000 Outlet choke...

  • Page 52: Venting System Length Calculations

    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 53 Attach gaskets to vent pipe and Vent Coupling and Adapter combustion air adapters. A13074 Fig. 39 - - Vent Coupling and Adapter with Gaskets INDUCER OUTLET VENT ELBOW CLAMP TORQUE 15 LB-IN. VENT PIPE CLAMP TORQUE 15 LB-IN. PSC INDUCER ASSEMBLY VENT ELBOW INDUCER OUTLET CHOKE 40,000 BTUH MODELS WITH...
  • Page 54 FURNACE NOT IN HORIZONTAL SECTION PIPE DIAMETER TRANSITION IN VERTICAL SECTION A93034 Fig. 42 - - Combustion Air and Vent Pipe Diameter Transition Location and Elbow Configuration L14F028 Fig. 43 - - Inside Corner Termination...
  • Page 55 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 56 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 57 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 58 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 59 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 60 ¾ ¾ 12 in. (305mm) min. separation between bottom of combustion air and bottom of vent (Typ.) A13077 Fig. 52 - - Combustion Air and Vent Pipe Termination for Direct Vent (2- -Pipe) System Roof Termination (Preferred) Vent Maintain 12 in (305mm) minimum clearance above highest anticipated...
  • Page 61 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 62 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. 55 - - Vent Terminations for Ventilated Combustion Air...
  • Page 63 EXAMPLE FOR UPFLOW INSTALLATIONS. MAY BE APPLIED TO OTHER CONFIGURATIONS. A12220 Fig. 56 - - Sample Inlet Air Pipe Connection for Polypropylene Venting Systems TO CODE APPROVED DRAIN OR CONDENSATE PUMP Representative drawing only, some models may vary in appearance L12F028 Fig.

  • Page 64: Start- -Up, Adjustment, And Safety Check

    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: Adjustments

    Adjustments required orifice to the manifold pressure to the heat content and specific gravity of the gas. To do this: WARNING 1. Obtain average yearly gas heat value (at installed altitude) from local gas supplier. 2. Obtain average yearly gas specific gravity from local gas FIRE HAZARD supplier.
  • Page 66 i. Remove jumper R to W. 1. Place duct thermometers in return and supply ducts as close to furnace as possible. Be sure thermometers do not “see” 2. Verify natural gas input rate by clocking meter. heat exchangers so that radiant heat does not affect NOTE: Contact your HVAC distributor or gas supplier for metric thermometer readings.
  • Page 67 Adjust Cooling Airflow Checklist The cooling airflow can be set from the remaining blower speed 1. Put away tools and instruments. Clean up debris. taps. Refer to the Air Delivery Tables in these instructions. 2. Verify that the jumper is removed from the TEST/TWIN terminal.

  • Page 68: Altitude Derate Multiplier For U.s.a

    Table 19 – Altitude Derate Multiplier for U.S.A. PERCENT DERATE ALTITUDE MULTIPLIER DERATE FACTOR* 0–2000 0--- 610 1.00 2001–3000 610--- 914 4--- 6 0.95 3001–4000 914--- 1219 6--- 8 0.93 4001–5000 1219--- 1524 8--- 10 0.91 5001–6000 1524--- 1829 10--- 12 0.89 6001–7000 1829--- 2134...
  • Page 69 338309-201 Rev. E A11602 Fig. 61 - - Service Label Information...

  • Page 70: Gas Rate

    Table 20 – Gas Rate (CU ft./hr) SIZE OF TEST DIAL SIZE OF TEST DIAL SECONDS SECONDS FOR 1 REVOLUTION FOR 1 REVOLUTION 1 Cu Ft. 2 Cu Ft. 5 Cu Ft. 1 Cu Ft. 2 Cu Ft. 5 Cu Ft. 1800 1636 1500...

  • Page 71: Orifice Size And Manifold Pressure

    Table 21 – Orifice Size and Manifold Pressure (in. W.C.) for Gas Input Rate 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 0.64 AT ALTITUDE Orifice Manifold Orifice...
  • Page 72 Table 21 - - Orifice Size and Manifold Pressure (in. W.C.) for Gas Input Rate (Cont.) 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 0.64 AT ALTITUDE Orifice...

  • Page 73: Service And Maintenance Procedures

    SERVICE AND MAINTENANCE the switch. The maximum make point of the switch is 0.10 inches of water above the maximum break point of the switch. PROCEDURES Example: Nominal break point on pressure switch is 0.68- -in. Untrained personnel can perform basic maintenance functions such W.C.
  • Page 74 5. The LED will flash the last stored fault code. Refer to the 5. Verify that the Status LED glows. If not, check that the Service Label (Fig. 61) to interpret the LED. power supply is energized and that the blower door is secure.
  • Page 75 Blower Motor and Wheel Maintenance The minimum maintenance on this furnace is as follows: 1. Check and clean air filter each month or more frequently if To ensure long life, economy, and high efficiency, clean required. Replace if torn. accumulated dirt and grease from blower wheel and motor annually.
  • Page 76 11. Verify that blower wheel is centered in blower housing and WARNING set screw contacts the flat portion of the motor shaft. Loosen set screw on blower wheel and reposition if necessary. 12. Spin the blower wheel by hand to verify that the wheel does ELECTRICAL SHOCK AND FIRE HAZARD not rub on the housing.
  • Page 77 Flushing Collector Box and Drainage System 7. Install the remaining manifold mounting screws. 8. Check the igniter alignment. See Fig. 62, 63 and 68. WARNING 9. Attach the wires to the roll-out switches. 10. Align the burner assembly with the openings in the primary cell inlet panel and attach the burner assembly to the cell ELECTRICAL SHOCK AND FIRE HAZARD panel.

  • Page 78: Cleaning Heat Exchangers

    To re-install Condensate Drain and Trap: WARNING 1. Remove adhesive backing from condensate trap gasket 2. Install gasket on collector box 3. Align the condensate trap with the drain opening on the col- ELECTRICAL SHOCK, FIRE OR EXPLOSION lector box and secure the trap with the screw HAZARD 4.
  • Page 79 10. Repeat Steps 5 through 8. WARNING 11. If a condensate pump is used, check with pump manufacturer to verify pump is safe for use with antifreeze used. Allow FIRE OR EXPLOSION HAZARD pump to start and pump anti- -freeze to open drain. 12.

  • Page 80: Burner Flame

    A11273 Fig. 65 - - Cleaning Heat Exchanger Cell Burner Flame Burner Manifold A11461 Fig. 66 - - Burner Flame...
  • Page 81 GROMMET MOTOR SHAFT FLAT MOTOR ARM SCREW SET SCREW MOTOR WHEEL HUB SEE DETAIL SCREW LOCATION BLOWER HSG ASSY BRACKET BRACKET ENGAGEMENT DETAIL CUTOFF, BLOWER WHEEL, BLOWER BLOWER HSG ASSY BRACKET CAPACITOR OR POWER CHOKE (WHEN USED) MOTOR, BLOWER SCREW (GND) A11584 Fig.

  • Page 82: Sequence Of Operation

    SEQUENCE OF OPERATION Simultaneously, the electronic air cleaner terminal EAC- -1 is energized and remains energized as long as the blower NOTE: Furnace control must be grounded for proper operation or motor BLWM is energized. control will lock out. Control is grounded through green/yellow f.
  • Page 83 A11622 Fig. 69 - - Troubleshooting Guide...
  • Page 84 A12421 Troubleshooting Guide (Cont)
  • Page 85 A12420 Fig. 70 - - Wiring Diagram...

  • Page 86: Parts Replacement Information Guide

    -authorized replacement parts, kits, or accessories when modifying this product. Catalog No: 59SC2C ---02SI Copyright 2014 Carrier Corp. S 7310 W. Morris St. S Indianapolis, IN 46231 Edition Date: 09/14 Manufacturer reserves the right to change, at any time, specifications and designs without notice and without obligations.

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