Carrier PG95ESA Installation, Start-Up, Operating And Service And Maintenance Instructions

Carrier PG95ESA Installation, Start-Up, Operating And Service And Maintenance Instructions

Single--stage, 4--way multipoise 35--in. (889 mm), condensing

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Installation, Start- -up, Operating and
Service and Maintenance Instructions
NOTE: Read the entire instruction manual before starting the installation.
SECTIONS
INTRODUCTION
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LOCATION
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WINTERIZATION
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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 .
SINGLE- -STAGE, 4- -WAY MULTIPOISE
35- -IN. (889 MM), CONDENSING GAS FURNACE
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Opening Dimensions
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Filter Size Information
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Air Delivery CFM
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Deductions from Maximum Equivalent Vent Length
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Maximum Allowable Exposed Vent Lengths Insulation
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Hangar Spacing
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Combustion- -Air Vent Pipe, Fitting & Cement Material..
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Blower Off Delay Setup Switch
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TABLES
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PG95ESA
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Summary of Contents for Carrier PG95ESA

  • Page 1: Table Of Contents

    PG95ESA 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 A180203 SHIP WT. FURNACE SIZE BOTTOM INLET LB (KG) CABINET WIDTH OUTLET WIDTH AIR INTAKE WIDTH 30026A 14--- 3/16 (361) 12--- 1/2 (319) 12--- 9/16 (322) 7--- 1/8 (181) 118.5 (53.7) 30040A 14--- 3/16 (361) 12--- 1/2 (319) 12--- 9/16 (322) 7--- 1/8 (181) 120 (54.4) 36040B...
  • Page 4: Safety Considerations

    SAFETY CONSIDERATIONS 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 attached to or shipped with furnace and other safety precautions FIRE, EXPLOSION, ELECTRICAL SHOCK, AND that may apply.
  • Page 5: Minimum Clearances To Combustible Materials

    10. These Multipoise Gas- -Fired Furnaces are CSA design- -cer- This 4- -way multipoise Category IV condensing furnace is CSA tified for use with natural and propane gases (see furnace design- -certified as a direct- -vent (2-pipe) furnace for 40,000 BTUh rating plate) and for installation in alcoves, attics, base- through 140,000 BTUh models using outside air for combustion.
  • Page 6: Codes And Standards

    Table 2 – Loose Parts Bag DESCRIPTION QUANTITY Outlet Restrictor Plate (provided with 26K and 40K BTUH furnaces only; see Note) Air Intake Pipe Flange Vent Pipe Flange Pipe Flange Gaskets Sharp Tip Screws (Vent and Inlet Flanges) Vent Pipe Coupling Vent Pipe Coupling Clamps Pressure Switch Tube Rubber Drain Elbow...
  • Page 7: Electrostatic Discharge (Esd) Precautions

    LOCATION In the state of Massachusetts: S This product must be installed by a licensed plumber or gas fitter. CAUTION S When flexible connectors are used, the maximum length shall not exceed 36 in. (914 mm). S When lever type gas shutoffs are used they shall be T- -handle type. PERSONAL INJURY AND/OR PROPERTY S The use of copper tubing for gas piping is not approved by the DAMAGE HAZARD...
  • Page 8: Air For Combustion And Ventilation

    General Ventilated Combustion Air Applications These furnaces are shipped with materials to assist in proper When the furnace is installed using the ventilated combustion air furnace installation. These materials are shipped in the main option, the attic or crawlspace must freely communicate with the blower compartment.
  • Page 9: 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 10 Outdoor Combustion Air Method Table 4 - - Minimum Space Volumes were determined by using the following equations from the current edition of the National Fuel 1. Provide the space with sufficient air for proper combustion, Gas Code ANSI Z223.1/NFPA 54, 9.3.2.2: ventilation, and dilution of flue gases using permanent hori- 1.
  • Page 11: Condensate Trap

    b. Outdoor opening size reduction Factor is 1 minus the Ra- tio in a. above. c. Minimum size of Outdoor openings shall be the size re- quired in Outdoor Combustion Air Method above multi- plied by reduction Factor in b. above. The minimum di- mension of air openings shall be not less than 3 in.
  • Page 12 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 13 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 14: Condensate Drain

    CONDENSATE DRAIN CONNECTION INSTALL CLAMPS ON DRAIN TUBE ATTACH DRAIN TUBE TO CONDENSATE DRAIN TRAP CAUTION PULL DRAIN STUB THROUGH CASING PROPERTY DAMAGE HAZARD Failure to follow this caution may result in burst water pipes and/or property damage. If a condensate pump is installed, a plugged condensate drain or a failed pump may cause the furnace to shut down.
  • Page 15 furnace casing. A pre-formed 1/2- -in. CPVC “Z-pipe” is downflow orientations, the Z-pipe should NOT be resting provided with the furnace. The Z-pipe is long enough to on any sheet metal parts. extend across the casing for drain connections. 13. Secure the rubber elbow to the drain trap and the Z-pipe 2.
  • Page 16 7. The remaining drain line can be constructed from field- - (when used). DO NOT cut main furnace casing side to attach supplied 1/2- -in. CPVC or 3/4- -in. PVC pipe, in compliance supply air duct, humidifier, or other accessories. All supply- -side with local building codes.
  • Page 17 Side Return Air Inlet These furnaces are shipped with bottom closure panel installed in bottom return- -air opening. This panel MUST be in place when only side return air is used. Where required by code, seal bottom closure to furnace with tape, mastic or other durable sealing method.
  • Page 18 Table 5 – Opening Dimensions - - In. (mm) FURNACE PLENUM OPENING FLOOR OPENING CASING APPLICATION WIDTH IN. (mm) Upflow Applications on Combustible or Noncombustible 12--- 11/16 21--- 5/8 13--- 5/16 22--- 1/4 Flooring (subbase not required) (322) (549) (338) (565) Downflow Applications on Noncombustible Flooring (subbase 12--- 9/16...
  • Page 19: Accessories

    Bottom Return Air Inlet (406 mm) media cabinet may be used with the 14- -3/16-in. (360 mm) furnace and includes block-off plates These furnaces are shipped with bottom closure panel installed in Table 6 – Air Filter Selection and Duct Sizing - - In. (mm) bottom return- -air opening.
  • Page 20 Table 7 – Filter Media Pressure Drop (Clean) Versus Airflow - - In. W.C. (Pa) Factory-Accy Representative After-Market Filter Media* Fiberglass* Pleated* Washable 14 x 25 Filter (1-in. / 2.5 cm) (1-in. / 2.5 cm) (2-in. / 5 cm) (1-in. / 2.5 cm) (2-in.
  • Page 21 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 22: Air Ducts

    Leveling Legs (If Desired) 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 In upflow position with side return inlet(s), leveling legs may be bottom of furnace is used for return air connection. See Fig. 26 for used.
  • Page 23 Table 9 – Air Delivery - - CFM (With Filter) SPEED EXTERNAL STATIC PRESSURE (IN.W.C.) WIRE LEAD 2, 3 UNIT SIZE TAPS COLOR (Function) Black Cooling. Do not use for heating 1045 1010 Yellow Alt Cooling or alt Heating Orange Alt Cooling or alt Heating 30026A Blue...
  • Page 24: Gas Piping

    GAS PIPING 1 1/2 inch for Gas WARNING 7/8 inch for 115 VAC Electric FIRE OR EXPLOSION HAZARD Failure to follow this warning could result in personal injury, death, and/or property damage. Never purge a gas line into a combustion chamber. Never test for gas leaks with an open flame.
  • Page 25: Electrical Connections

    ELECTRICAL CONNECTIONS WARNING WARNING FIRE OR EXPLOSION HAZARD ELECTRICAL SHOCK, FIRE OR EXPLOSION A failure to follow this warning could result in personal HAZARD injury, death, and/or property damage. If local codes allow the use of a flexible gas appliance Failure to follow safety warnings could result in connector, always use a new listed connector.
  • Page 26: Electrical Data

    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 27 A190279 Fig. 33 - - Field- -Supplied External Electrical Box on Furnace Casing J- -Box Installation WARNING FIRE OR ELECTRICAL SHOCK HAZARD Failure to follow this warning could result in personal injury, death, or property damage. High voltage field connections must be located in J- -Box with furnace, or in field supplied external disconnect mounted to furnace.
  • Page 28 2. Install the threaded end of a strain- -relief bushing through 2. Route BX connector through 7/8- -in. (22 mm) diameter the J- -Box bracket and the furnace casing. Strain- -relief hole in casing and J- -Box bracket. bushing should be installed so that the bushing can be 3.
  • Page 29 A190023 Fig. 36 - - Example of Single Stage Furnace Control A11157 Fig. 37 - - Field- -Supplied Isolation Relay for Humidifiers with Internal Power Supply...
  • Page 30 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 31 VENTING WARNING NOTE: Planning for the venting system should be done in conjunction with planning for the ductwork, drainage, and furnace CARBON MONOXIDE POISONING HAZARD accessories, such as air cleaners and humidifiers. Begin assembling the venting system AFTER the furnace is set in place in the Failure to follow the instructions outlined below for each appliance being placed into operation could result in carbon required orientation.
  • Page 32: Vent Termination Kit For Direct Vent (2- -Pipe) System

    Table 12 – Vent Termination Kit for Direct Vent (2- -pipe) Systems Approved Two---Pipe Termination Fittings Vent and Allowable 1 1/2---in. 2---in. 2 1/2---in. 3---in. 4---in. Combustion Air Concentric Vent (38 mm) (51 mm) (64 mm) (76---mm) (102 mm) Pipe Diameters 1 1/2--- in.
  • Page 33 Ventilated Combustion Air Systems single pipe vent system. Refer to the “Air For Combustion and Ventilation” Section. In a ventilated combustion air option, the vent terminates and Non-Direct Vent (1-pipe) System discharges the flue products directly to the outdoors similar to a direct vent system.
  • Page 34 A12326 Fig. 41 - - Direct Vent Termination Clearance 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.
  • Page 35 A12325 Fig. 42 - - Ventilated Combustion Air and Non- -Direct Vent Termination Clearance 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...
  • Page 36 3. Termination or termination kit should be positioned where WARNING vent vapors will not damage plants/shrubs, air conditioning equipment or utility meters. 4. Do not locate termination directly into prevailing winds. CARBON MONOXIDE POISONING HAZARD Termination should be positioned so that it will not be Failure to follow the instructions outlined below for each affected by sustained prevailing winds over 30 mph, wind appliance being placed into operation could result in carbon...
  • Page 37 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 38 A10497 Fig. 46 - - Vent Terminations for Ventilated Combustion Air helps to ensure stable combustion, as well as allow for sound attenuation. To aid sound attenuation, point the inlet air pipe away from occupants. An extra elbow and/or five feet of pipe may be used to accomplish the sound attenuation function.
  • Page 39 If the unobstructed distance from the foundation to the property line of the adjacent lot is no less than 4 ft. (1.2 M) and no greater than 8 ft. (2.4 M), it will be necessary to re-direct the flue gas plume.
  • Page 40 TO CODE- - APPROVED DRAIN OR CONDENSATE PUMP Recommend “T” fitting with 4--inch minimum height standpipe (A) of same diameter or larger extending upward. Representative drawing only, some models may vary in appearance. Dry Well Dry Well (water tight Dry Well and removable) (water tight (water tight...
  • Page 41 Table 13 – Maximum Equivalent Vent Length - - Ft. NOTE: Maximum Equivalent Vent Length (MEVL) includes standard and concentric vent termination and does NOT include elbows. Use Table 14 - Deductions from Maximum Equivalent Vent Length to determine allowable vent length for each application. Unit Size 26,000 40,000...
  • Page 42 The measured length of pipe used in a single or 2- -pipe termination Combustion Air and Vent Piping Insulation is included in the total vent length. Include deductions from the Guidelines Maximum Equivalent Vent Length (MEVL) contained in the NOTE: Use closed cell, neoprene insulation or equivalent. Venting Tables for elbows and flexible vent pipe.
  • Page 43 A14546 Fig. 51 - - Near Furnace Vent Connections A170006 Fig. 52 - - Inducer Vent Elbow...
  • Page 44 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 A11309A DOWNFLOW LEFT CONFIGURATION A11311A Rotate vent elbow to required position. Any other unused knockout may be used Any other unused for combustion air...
  • Page 45 ALTERNATE COMBUSTION AIR CONNECTIONS HORIZONTAL RIGHT ---VERTICAL VENT CONFIGURATION A11337 HORIZONTAL LEFT ---VERTICAL VENT CONFIGURATION A11327A 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 A11336 A11328A...
  • Page 46 Table 15 – Maximum Allowable Exposed Vent Length in Unconditioned Space - - Ft. / M Unit Size 26,000* BTUH Pipe Dia. 0” Insulation 3/8” Insulation 1/2” Insulation 1½ 1½ 1½ Winter Design Temp --- 20 ° F --- 40 Unit Size 40,000* BTUH 60,000 BTUH...
  • Page 47 Installing the Vent Pipe Adapter and Combustion Air Pipe Adapter WARNING CARBON MONOXIDE POISONING HAZARD Failure to follow this warning could result in personal injury or death. To route the vent pipe and combustion air pipe through the furnace, the manufacturer supplied kit must be used. Failure to properly seal the blower compartment from the furnace vestibule could result in the circulation of carbon monoxide throughout the structure.
  • Page 48 CAUTION WARNING CARBON MONOXIDE POISONING HAZARD FURNACE RELIABILITY HAZARD Failure to follow this warning could result in personal injury Failure to follow this caution may result in nuisance short or death. cycling, frozen vent termination, and/or no heat. DO NOT use cement to join polypropylene venting systems. Slope the vent and combustion air piping downward towards Follow the polypropylene venting system manufacturer’s furnace a minimum of 1/4- -in.
  • Page 49: Maximum Equivalent Vent Length

    Installing the Vent Termination 3. Slide assembled kit with rain shield REMOVED through hole. Roof Terminations NOTE: Do not allow insulation or other materials to accumulate A roof termination of any type will require a 4-in. (102 mm) inside of pipe assembly when installing it through hole. flashing for a 2 in.
  • Page 50 Table 17 – 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 51: Start- -Up, Adjustment, And Safety Check

    Example 2 A direct-vent 60,000 BTUH furnace installed at 2100 ft. (640M). Venting system includes FOR EACH PIPE: 100 feet (30 M) of vent pipe, 95 feet (29 M) of combustion air inlet pipe, (3) 90º long-radius elbows, and a polypropylene concentric vent kit. Also includes 20 feet (6.1 M) of flexible polypropylene vent pipe, included within the 100 feet (30 M) of vent pipe.
  • Page 52 4. Remove funnel; replace collector box drain plug. CAUTION 5. Connect field-supplied 5/8-in. (16 mm) ID tube to middle collector box drain port. 6. Pour one quart (liter)of water into funnel/tube. Water should FURNACE DAMAGE HAZARD run through collector box, overfill condensate trap, and Failure to follow this caution may result in reduced furnace flow into open field drain.
  • Page 53: Altitude Derate Multiplier For U.s.a

    NOTE: To convert gas manifold Table pressures to Pascals, NOTICE multiply the in. w.c. value by 249.1 Pa/in. w.c. (1 in. w.c. = 249.1 Pa). Check Inlet Gas Pressure If orifice hole appears damaged or it is suspected to have been The inlet gas pressure must be checked with the furnace operating redrilled, check orifice hole with a numbered drill bit of in maximum heat.
  • Page 54: Gas Rate

    i. When correct input is obtained, replace cap that conceals NOTE: Contact your HVAC distributor or gas supplier for metric gas valve regulator adjustment screws. Main burner flame gas meter Tables, if required. should be clear blue, almost transparent See Fig. 61. 2.
  • Page 55 f. Multiply gas rate cu ft./hr by heating value (Btuh/cu ft.) Change the blower heat taps as required to maintain proper to obtain input rate. temperature rise for Heating and Cooling as described above. To g. If clocked rate does not match required input from Step 1, change blower motor speed selections for heating mode, remove increase manifold pressure to increase input or decrease blower motor lead from control HEAT terminal.
  • Page 56 Adjust Cooling Airflow a. Run furnace for at least 5 minutes. b. Gradually block off return air with a piece of cardboard or The cooling airflow can be set from the remaining blower speed sheet metal until the limit trips. taps.
  • Page 57: Orifice Size And Manifold Pressure

    Table 21 – Orifice Size and Manifold Pressure (in. w.c.) for Gas Input Rate 40,000 BTUH to 140,000 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 58 Table 21 - - Orifice Size and Manifold Pressure (in. w.c.) for Gas Input Rate (Cont.) 40,000 BTUH to 140,000 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 59 Table 22 – 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 60 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 61 A190099 Fig. 64 - - Service Label Information...
  • Page 62: 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 63 Component Self-Test 8. Review Owner’s Manual with owner. 9. Attach entire literature packet to furnace. NOTE: The furnace control component test allows all Care and Maintenance components to run for a short time; except the gas valve and humidifier terminal HUM are not energized. The EAC-1 terminal WARNING is energized when the blower is energized.
  • Page 64 5. Inspect the vent pipe/vent system before each heating sea- Blower Motor and Wheel Maintenance son for water leakage, sagging pipes or broken fittings. WARNING Have vent pipes/vent system serviced by a qualified service agency. 6. Inspect any accessories attached to the furnace such as a hu- ELECTRICAL OPERATION HAZARD midifier or electronic air cleaner.
  • Page 65 g. Clean wheel per instructions on degreaser cleaner. Do not NOTE: If R- -W/W1 thermostat terminals are jumpered at the time get degreaser in motor. blower door switch is closed, blower will run for 90 sec before 8. Reassemble motor and blower wheel by reversing items 7b beginning a heating cycle.
  • Page 66 20. Clean the flame sensor with fine steel wool (0000 grade). 16. Turn power on at external disconnect, fuse or circuit break- Do not use sand paper or emery cloth. 17. Run the furnace through two complete heating cycles to check for proper operation 18.
  • Page 67 10. Replace control door. 3. Align the condensate trap with the drain opening on the col- lector box and secure the trap with the screw Flushing Collector Box and Drainage System 4. Attach the relief hose to the relief port on the condensate WARNING trap and collector box.
  • Page 68 9. Refer to furnace wiring diagram and reconnect wires to WARNING flame rollout switch, gas valve, igniter, and flame sensor. 10. Turn on gas and electrical supplies to furnace. ELECTRICAL SHOCK, FIRE OR EXPLOSION 11. Check furnace operation through 2 complete heat operating HAZARD cycles.
  • Page 69: Sequence Of Operation

    SEQUENCE OF OPERATION f. Blower- -Off Delay- - When the thermostat is satisfied, the R- -to- -W circuit is opened, de- -energizing the gas valve GV, NOTE: Furnace control must be grounded for proper operation or stopping gas flow to the burners, and de- -energizing the hu- control will lock out.
  • Page 71 A190093 Fig. 70 - - Troubleshooting Guide (Cont)
  • Page 72 344442- -2 Rev. C A190259 Fig. 71 - - Wiring Diagram...
  • Page 73 VARIATIONS SERIES CAPACITY INPUT PG95ESA WARNING FIRE, EXPLOSION, ELECTRICAL SHOCK AND CARBON MONOXIDE POISONING HAZARD Failure to follow this warning could result in dangerous operation, personal injury, death or property damage. Improper installation, adjustment, alteration, service, or maintenance can cause personal injury, property damage, or death. Consult a qualified installer, service agency, or your local gas supplier for information or assistance.
  • Page 74 Catalog No: IM---PG95ESA ---03 E2020 Carrier D 7310 W. Morris St. D Indianapolis, IN 46231 Edition Date: 03/20 Replaces: IM--- PG95ESA--- 02 Manufacturer reserves the right to change, at any time, specifications and designs without notice and without obligations.

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