Page 1: Table Of Contents
59SP5A Single Stage 4---Way Multipoise Gas Furnace Series 100 Installation, Start---up, Operating and Service and Maintenance Instructions NOTE: Read the entire instruction manual before starting the Purge Gas Lines ........
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 This is the safety- -alert symbol . When you see this symbol on the furnace and in instructions or manuals, be alert to the potential WARNING for personal injury. Understand the signal words DANGER, WARNING, and CAUTION. These words are used with the safety- -alert symbol. FIRE, EXPLOSION, ELECTRICAL SHOCK, AND DANGER identifies the most serious hazards which will result in CARBON MONOXIDE POISONING HAZARD...
Page 4: Introduction
INTRODUCTION Combustion and Ventilation Air S US: Section 9.3 of the NFPA54/ANSI Z223.1- -2009 Air for This 4- -way multipoise Category IV condensing furnace is CSA design- -certified as a direct (2-pipe) or non-direct vent (1-pipe) Combustion and Ventilation furnace. (See Fig. 2.)The furnace is factory- -shipped for use with S CANADA: Part 8 of the CAN/CSA B149.1- -2010, Venting natural gas.
Page 5: Accessories
NOT move or shuffle your feet, do not touch ungrounded control from damage. If the control is to be installed in a objects, etc.). furnace, follow items 1 through 4 before bringing the con- trol or yourself in contact with the furnace. Put all used and 4.
Page 6 A11521 Fig. 1 - - Dimensional Drawing...
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 AIR CONDITIONED AIR IS DISCHARGED TO THE LEFT. THE BLOWER IS THE BLOWER IS LOCATED TO THE LEFT LOCATED ABOVE THE OF THE BURNER SECTION,...
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 a. There are no closeable doors between rooms. ceiling. Appliances in the space shall have clearances of at least 1 b. Combining spaces on same floor level. Each opening shall in.
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: Condensate Trap
1 SQ IN. PER 4000 CIRCULATING AIR DUCTS VENT THROUGH ROOF BTUH* DUCTS OUTDOORS (305mm) 12″ MAX 12″ (305mm) 12" MAX (305mm) 1 SQ IN. VENT PER 2000 THROUGH BTUH* ROOF 1 SQ IN. 1 SQ IN. PER 1000 BTUH* IN DOOR 4000 OR WALL BTUH*...
Page 13: Horizontal
NOTE: The condensate trap extends below the side of the casing For Horizontal Right only: in the horizontal position. A minimum of 2 in. (51 mm) of S The pressure switch tube location is not modified. clearance is required between the casing side and the furnace S Loosen the clamp around the inlet of the vent elbow on the platform for the trap to extend out of the casing in the horizontal inducer.
Page 14 Remove pressure switch tube from front pressure switch and discard. Remove relief tube from relief Remove tube from relief port. port on collector trap. Remove trap from collector box. Loosen clamp on inlet Remove middle and bottom to vent elbow. plugs.
Page 15 Remove plug from collector box. DO NOT DISCARD. If alternate vent position is required, loosen clamp on inlet of vent elbow. Remove trap from collector box. Unconverted Factory Trap Configuration As Viewed in the Horizontal Right Orientation Slide relief tube in stand-offs to adjust length.
Page 16 Remove trap from collector box. If alternate vent position is required, loosen clamp Remove relief tube from on vent elbow inlet. relief port on condensate trap. Remove front pressure switch tube and discard. Remove relief tube from port on collector box.
Page 17: Condensate Drain
CONDENSATE DRAIN CONNECTION and secure the cut end of drain tube to the pipe. (See Fig. Upflow/Downflow Orientation 9. Prime the bare end of the pipe with CPVC primer. In the Upflow or Downflow orientation, the condensate trap is 10. Route the offset pipe behind the inducer assembly and inside the furnace casing.
Page 18 INSTALL CLAMPS ON DRAIN TUBE ATTACH DRAIN TUBE TO CONDENSATE DRAIN TRAP PULL DRAIN STUB THROUGH CASING A11305 CAUTION CUT HAZARD Failure to follow this caution may result in personal injury. Sheet metal parts may have sharp edges or burrs. Use care and wear appropriate protective clothing, safety glasses and gloves when handling parts, and servicing furnaces.
Page 19: Upflow
Return Air Connections Attach tube to condensate trap Cut formed end off WARNING condensate drain tube Field supplied 1/2” CPVC Connect short end coupling & drain extension of “Z” pipe to modified 17 1/2“, 21” and 24 1/2” casing drain tube FIRE HAZARD A failure to follow this warning could cause personal injury, death and/or property damage.
Page 20: Horizontal
3. Construct plenum to dimensions specified in Table 6 and WARNING Fig. 19. 4. Install special base coil assembly or coil box as shown in in Fig. 19. 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 21: Filter Arrangement
FOR FURNACES SHIPPED WITH A 1. Tilt or raise furnace and remove 4 screws holding bottom plate. (See Fig. 22.) MEDIA CABINET 2. Remove bottom plate. There are no provisions for an internal filter rack in these furnaces. 3. Remove bottom closure panel. An external filter is required.
Page 22 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 23: 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. 19 - - Installation on Combustible Flooring Table 6 –...
Page 24 UPFLOW DOWNFLOW HORIZONTAL PERFORATED DISCHARGE DUCT 90° 90° FLANGE 120° 120° 120° A10493 Fig. 20 - - Duct Flanges ″ 5/ 16 (8mm) (8mm) ″ 5/ 16 ″ (44mm) ″ (44mm) (8mm) ″ BOTTOM CLOSURE PANEL (8mm) 5/ 16 ″ (44mm) 3/ 4 ″...
Page 25 ANY COMBINATION OF 1, 2, OR 3 PERMITTED. A11036 A11037 Fig. 24 - - Upflow Return Air Configurations and Restrictions Fig. 25 - - Downflow Return Air Configurations and Restrictions HORIZONTAL TOP RETURN NOT PERMITTED FOR ANY MODEL A11038 Fig. 26 - - Horizontal Return Air Configurations and Restrictions...
Page 26 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. 27 - - Working Platform for Attic Installation COMBUSTION-AIR PIPE (SEE VENTING SECTION) 2-IN.
Page 27: Air Ducts
AIR DUCTS Ductwork passing through unconditioned space should be insulated to enhance system performance. When air conditioning is General Requirements used, a vapor barrier is recommended. The duct system should be designed and sized according to Maintain a 1- -in. (25 mm) clearance from combustible materials to accepted national standards such as those published by: Air supply air ductwork for a distance of 36- -in.
Page 28: 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 29: Electrical Connections
Table 8 – Maximum Capacity of Pipe Field- -supplied wiring shall conform with the limitations of 63_F (33_C) rise. NOMINAL LENGTH OF PIPE --- FT (M) IRON PIPE SIZE WARNING (3.0) (6.0) (9.1) (12.1) (15.2) IN. (MM) 1/2 (13) 3/4 (19) ELECTRICAL SHOCK AND FIRE HAZARD 1 ( 25) Failure to follow this warning could result in personal...
Page 30: J- -Box Installation
J- -Box Installation 3. Secure power cord to J- -Box bracket with a strain relief bushing or a connector approved for the type of cord used. WARNING 4. Pull furnace power wires through 1/2- -in. (12 mm) diameter hole in J- -Box. If necessary, loosen power wires from strain—relief wire- -tie on furnace wiring harness.
Page 31: Electrical Data
alternate power supply must generate the same voltage, phase, and Contact the alternate power supply manufacturer for specifications frequency (Hz) as shown in Table 9 or the furnace rating plate. and details. Power from an alternate power supply that is non-sinusoidal may damage the furnace electronics or cause erratic operation.
Page 32 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. 33 - - 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 33 BLOWER OFF-DELAY 24−V THERMOSTAT TERMINALS TWINNING AND/OR COMPONENT TEST TERMINAL HUMIDIFIER TERMINAL (24−VAC 0.5 AMP MAX) 3−AMP FUSE TRANSFORMER 24VAC CONNECTIONS SEC-2 SEC-1 PL1 − LOW VOLTAGE MAIN OPERATION & HARNESS CONNECTOR DIAGNOSTIC LIGHT BLOWER SPEED HEAT SELECTION TERMINALS COOL PL-2 HOT SURFACE EAC TERMINAL IGNITOR (HSI) &...
Page 34 THERMOSTAT THERMOSTAT 10, and 14 10, and 14 Single-Stage Furnace with Single-Speed Air Conditioner Single-Stage Furnace with Two-Speed Air Conditioner THERMOSTAT THERMOSTAT 10, 12 and 14 , 12, and 14 Single-Stage Furnace with Single-Speed Heat Pump Single-Stage Furnace with Two-Speed Heat Pump A11275 Fig.
Page 35 NOTES FOR THERMOSTAT WIRING DIAGRAMS 1. Heat pump MUST have a high pressure switch for dual fuel applications. 2. Refer to outdoor equipment Installation Instructions for additional information and setup procedure. 3. If the heat pump date code is 1501E or earlier, select the “ZONE” position on the two speed heat pump control. Heat pumps with date code 1601E and later do not have or require a “ZONE”...
Page 36: Special Venting Requirements For Installations In Canada
VENTING Les autoritées ayant juridiction (inspecteurs de gas, inspecteurs en bâtiments, département des incendies, etc) devraient être consultées Furnace is set in place in the required orientation. avant l’installation afin de déterminer si un permis est requis. Special Venting Requirements for Installations in WARNING Canada Installation in Canada must conform to the requirements of...
Page 37: Materials
A furnace shall not be connected to a chimney flue serving a single pipe vent system. Refer to the “Air For Combustion and separate appliance designed to burn solid fuel. Ventilation Section. Other gas appliances with their own venting system may also use Provisions for adequate combustion, ventilation, and dilution air the abandoned chimney as a raceway providing it is permitted by must be provided in accordance with:...
Page 38: Combustion Air And Vent Piping Insulation Guidelines
5. Termination or termination kit should be positioned where Length in Table 13 or 15, minus the number of fittings multiplied vent vapors are not objectionable. by the deduction for each type of fitting used from Table 14. Direct Vent / 2-Pipe System The measured length of pipe used in a single or 2- -pipe termination is included in the total vent length.
Page 39 Configure the Furnace 3. Pilot drill the screw holes for the adapter in the casing and attach the vent pipe adapter to the furnace with sheet metal WARNING screws 4. Slide the end of the rubber vent coupling with notches in it over the standoffs on the vent pipe adapter.
Page 40 2. Slide the plastic vent pipe adapter over the length of the Holes in the roof for two pipe terminations should be spaced no vent pipe down to the furnace casing. Mark the pipe where more than 18 in. (457 mm) apart. it is flush with the outlet of the adapter.
Page 41 Table 11 – Approved Combustion-Air and Vent Pipe, Fitting and Cement Materials (U.S.A. Installations) ASTM SPECIFICATION SOLVENT CEMENT MATERIAL PIPE FITTINGS DESCRIPTION (MARKED ON MATERIAL) AND PRIMERS D1527 Pipe — — Schedule--- 40 D1785 Pipe — — Schedule--- 40 D2235 For ABS —...
Page 42: Maximum Allowable Exposed Vent Lengths Insulation
Table 12 – Maximum Allowable Exposed Vent Lengths Insulation Table - - Ft. / M Maximum Length of Uninsulated and Insulated Vent Pipe-Ft (M) No Insulation 3/8-in. (9.5 mm) Insulation 1/2-in. (12.7 mm) Insulation Single Winter Pipe Pipe Diameter-in. (mm) Pipe Diameter-in.
Page 43: Venting
Table 13 – Maximum Equivalent Vent Length - - Ft. (M) 0 to 4500 Ft. (0 to 1370 M) Altitude NOTE: Maximum Equivalent Vent Length (MEVL) does NOT include elbows or terminations. Use Table 14 - Deductions from Maximum Equivalent Vent Length to determine allowable vent length for each application. DIRECT VENT (2-PIPE) AND NON---DIRECT VENT (1---PIPE) Altitude Unit Size...
Page 44 Table 15 – Maximum Equivalent Vent Length - - Ft. (M) 4501 to 10,000 Ft. (0 to 1370 M) Altitude NOTE: Maximum Equivalent Vent Length (MEVL) does NOT include elbows or terminations. Use Table 14 - Deductions from Maximum Equivalent Vent Length to determine allowable vent length for each application. DIRECT VENT (2-PIPE) AND NON---DIRECT VENT (1---PIPE) Altitude Vent Pipe Diameter...
Page 45 Attach gaskets to vent pipe and Vent Coupling and Adapter combustion air adapters. A11314 Fig. 37 - - 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 ONLY...
Page 46 Any other unused knockout may be used for combustion air Any other unused connection. knockout may be used Rotate vent elbow to for combustion air required position. connection. Rotate vent elbow to & required position. A11308 A11309 Any other unused knockout may be used for combustion air connection.
Page 47 Rotate vent elbow to required position. Rotate vent elbow to required position. Any other unused knockout may be used for combustion air connection. A11311 A11312 A11313 Downflow Vertical Requires Accessory Internal Vent Kit. See Product Data for current kit number. Attach vent pipe adapter with gasket to furnace casing.
Page 48: Horizontal Left
HORIZONTAL LEFT - HORIZONTAL LEFT - VERTICAL VENT CONFIGURATION LEFT VENT CONFIGURATION HORIZONTAL LEFT - RIGHT VENT CONFIGURATION* *Requires Accessory Internal Vent Kit See Product Data for Current Kit Number Attach vent pipe adapter with gasket to furnace casing. Align notches in rubber coupling over standoffs on adapter. Slide clamps over the coupling. Slide vent pipe through adapter and coupling into vent elbow.
Page 49 HORIZONTAL RIGHT - HORIZONTAL RIGHT - VERTICAL VENT CONFIGURATION LEFT VENT CONFIGURATION* *Requires Internal Vent Kit See Product Data for Current Kit Number HORIZONTAL RIGHT - RIGHT VENT CONFIGURATION Attach vent pipe adapter with gasket to furnace casing. Align notches in rubber coupling over standoffs on adapter. Slide clamps over the coupling. Slide vent pipe through adapter and coupling into vent elbow.
Page 50 ALIGN NOTCHES IN VENT PIPE COUPLING OVER STAND-OFF ON ADAPTER. TORQUE LOWER CLAMP 15 LB-IN. WHEN REMAINING VENT PIPE ADAPTER WITH GASKET VENT PIPE IS INSTALLED, TORQUE INSTALLED ON FURNACE VENT UPPER CLAMP TO 15 LB-IN. PIPE IS CUT FLUSH WITH TOP OF ADAPTER.
Page 51 Item Clearance Description Canadian Installation (1) U.S. Installation (2) Clearance above grade, veranda, porch, deck, bal- 12 in. (305 mm). 18 in. (457 mm) above roof surface. 12 in. (305 mm) cony or anticipated snow level 12 in. (305 mm) for appliances > 10,000 Btuh (3kW) 9 in.
Page 52 Item Clearance Description Canadian Installation (1) U.S. Installation (2) Clearance above grade, veranda, porch, deck, bal- 12 in. (305 mm). 18 in. (457 mm) above roof surface. 12 in. (305 mm) cony or anticipated snow level 6 in. (152 mm) for appliances </--- 10,000 Btuh (3kW) 12 in.
Page 53 Roof T e rm ination (Pref erred) At least 36 in. (914mm) Concent ri c V ent and Comb ustion Ai r Roof T er mination (pre fe rred) V e r tical separation between comb ustion At least air and v ent 36 in.
Page 54 NOTE: This illustration is for reference only. Your unit may differ in appearance or may not include all components shown. OVERHANG OR ROOF VENT Angle 22.5 off wall BRACKET COUPLING 12 IN. SEPARATION BETWEEN BOTTOM OF COMBUSTION AIR AND BOTTOM OF VENT MAINTAIN 12 IN.
Page 55 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. 50 - - Vent Terminations for Ventilated Combustion Air...
Page 56: Adjustments
START- -UP, ADJUSTMENT, AND SAFETY Purge Gas Lines CHECK If not previously done, purge the lines after all connections have been made and check for leaks. General WARNING 1. Furnace must have a 115-v power supply properly connec- ted and grounded. NOTE: Proper polarity must be maintained for 115-v wiring.
Page 57 Adjust Temperature Rise e. Follow heat value and specific gravity lines to point of in- tersection to find orifice size and manifold pressure setting NOTE: Blower door must be installed when taking temperature for proper operation. rise reading. Leaving blower door off will result in incorrect f.
Page 58: Blower Speed Taps
Table 16 – Blower Speed Taps CAUTION FACTORY ATTACHED COLOR SPEED Gray Cool FURNACE OVERHEATING HAZARD Yellow Spare Failure to follow this caution may result in reduced furnace Blue Heat life. Orange Spare Recheck temperature rise. It must be within limits specified LO HT/Cont.
Page 59: Altitude Derate Multiplier For U.s.a
Checklist 1. Put away tools and instruments. Clean up debris. 2. Verify that jumper for the blower OFF DELAY is set as de- sired per Table 17. 3. Verify that blower and control doors are properly installed. 4. Cycle test furnace with room thermostat. 5.
Page 60 338311-2 Rev. C A11410 Fig. 54 - - Service Label Information...
Page 61: Gas Rate
Table 19 – 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 62: Orifice Size And Manifold Pressure
Table 20 – 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 63 Table 20 - - 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 64: Service And Maintenance Procedures
SERVICE AND MAINTENANCE Electrical Controls and Wiring PROCEDURES WARNING WARNING ELECTRICAL SHOCK HAZARD FIRE, INJURY OR DEATH HAZARD Failure to follow this warning could result in personal injury or death. Failure to follow this warning could result in personal There may be more than one electrical supply to the furnace. injury, death and/or property damage.
Page 65 Component Self-Test 6. Cycle test furnace with room thermostat to be sure that it operates properly with the room thermostat. Check all NOTE: The furnace control component test allows all modes including Heat, Cool and Fan. components to run for a short time; except the gas valve and 7.
Page 66 2. Check blower motor and wheel for cleanliness each heating The inducer and blower motors are pre- -lubricated and require no and cooling season. Clean as necessary. additional lubrication. These motors can be identified by the absence of oil ports on each end of the motor. 3.
Page 67 13. Reinstall blower assembly in furnace. 1. Disconnect power at external disconnect, fuse or circuit breaker. 14. Reinstall 2 screws securing blower assembly to blower deck. 2. Turn off gas at external shut-off or gas meter. 15. Reconnect blower leads to furnace control. Refer to furnace 3.
Page 68 1. Turn off gas and electrical supplies to furnace. WARNING 2. Remove control door. 3. Disconnect pressure switch tube from pressure switch port. NOTE: Ensure the pressure switch tube disconnected from the FIRE OR EXPLOSION HAZARD pressure switch is higher than the collector box opening or water Failure to follow this warning could result in personal will flow out of tube.
Page 69: Cleaning Heat Exchangers
9. Turn gas on at electric switch on gas valve and at external 2. Remove control door. shut-off or meter 3. Disconnect wires or connectors to flame rollout switch, gas 10. Turn power on at external disconnect, fuse or circuit break- valve, igniter, and flame sensor.
Page 70 reach 32_F (0_C) or lower unless winterized. Follow these procedures to winterize your furnace: CAUTION 2-in. UNIT COMPONENT DAMAGE HAZARD 3/8-in. Failure to follow this caution may result in damage to the furnace and other property damage. 3/16-in. Do not use ethylene glycol (automotive antifreeze coolant or equivalent).
Page 71 A11347 Fig. 60 - - Blower Assembly...
Page 72 IGNITER BURNER SUPT. ASSY BRACKET, IGNITER BURNER ASSY FLAME ROLLOUT SWITCH FLAME SENSOR (BELOW BURNER) A11403 Fig. 61 - - Burner Assembly...
Page 73: Sequence Of Operation
SEQUENCE OF OPERATION stopping gas flow to the burners, and de- -energizing the hu- midifier terminal HUM. The inducer motor IDM will re- NOTE: Furnace control must be grounded for proper operation or main energized for a 15- -sec post- -purge period. The control will lock out.
Page 74 tion after 20 minutes, the furnace control CPU will drop 5. Heat pump the blower speed back to HEAT speed. This alternating 10- - (See Fig. 35 and 36 for thermostat connections.) When in- minute cycle will continue as long as there is a call for cool- stalled with a heat pump, the furnace control automatically ing.
Page 75 A11324B Fig. 62 - - Troubleshooting Guide...
Page 76 A11440 Troubleshooting Guide (Cont)
Page 77 338311-2 Rev. C A11409 Fig. 63 - - Wiring Diagram...
Page 78: Parts Replacement Information Guide
The qualified installer or service agency must use only factory- -authorized replacement parts, kits, or accessories when modifying this product. Catalog No: 59SP5A ---04SI Copyright 2011 Carrier Corp. S 7310 W. Morris St. S Indianapolis, IN 46231 Printed in U.S.A. Edition Date: 09/11 Manufacturer reserves the right to change, at any time, specifications and designs without notice and without obligations.

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