Carrier R92ESN Installation, Start-Up, Operating And Service And Maintenance Instructions
Carrier R92ESN Installation, Start-Up, Operating And Service And Maintenance Instructions

Carrier R92ESN Installation, Start-Up, Operating And Service And Maintenance Instructions

Single-stage, 35-in. (889 mm) tall, 4-way multipoise high efficiency condensing gas furnace

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R92ESN
Single-Stage, 35-in. (889 mm) Tall, 4-Way Multipoise
High Efficiency Condensing Gas Furnace
NOTE: Read the entire instruction manual before starting the
installation.

TABLE OF CONTENTS

IMPORTANT . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2
SAFETY CONSIDERATIONS . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3
Table 1 - Minimum Clearances to Combustible Materials for All Units
5
INTRODUCTION . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 5
Table 2 - Loose Parts Bag . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 6
CODES AND STANDARDS. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 6
DURE . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 7
ACCESSORIES . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 7
LOCATION . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 7
AIR FOR COMBUSTION AND VENTILATION . . . . . . . . . . . . . . 8
Table 3 - Minimum Free Area Required for Each Combustion Air
Opening or Duct to Outdoors. . . . . . . . . . . . . . . . . . . . . . . . . . . . . 9
Table 4 - Minimum Space Volumes for 100% Combustion, Ventila-
tion and Dilution Air from Outdoors . . . . . . . . . . . . . . . . . . . . . . . 9
CONDENSATE TRAP. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 11
CONDENSATE DRAIN CONNECTION . . . . . . . . . . . . . . . . . . . . 13
INSTALLATION . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 16
Table 5 - Opening Dimensions - In. (mm) . . . . . . . . . . . . . . . . . 18
Table 6 - Filter Media Pressure Drop (Clean) Versus Airflow - In.
W.C. (Pa) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 20
Table 7 - Filter Media Pressure Drop (Clean) Versus Face Velocity-
In. W.C. (Pa) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 20
Table 8 - Air Filter Selection and Duct Sizing - In. (mm) . . . . . 21
AIR DUCTS . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 22
GAS PIPING. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 23
Table 9 - Maximum Capacity of Pipe . . . . . . . . . . . . . . . . . . . . . 23
ELECTRICAL CONNECTIONS. . . . . . . . . . . . . . . . . . . . . . . . . . . 24
Table 10 - Electrical Data . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 25
VENTING. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 28
Table 11 - Vent Termination Kit for Direct Vent (2-pipe) Systems29
Table 12 - Approved Combustion-Air and Vent Pipe, Fitting and Ce-
ment Materials . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 30
Table 13 - Maximum Equivalent Vent Length . . . . . . . . . . . . . . 40
Table 14 - Deductions from Maximum Equivalent Vent Length - Ft.
(M) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 40
Table 15 - Maximum Allowable Exposed Vent Lengths in Uncondi-
tioned Space Table - Ft. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 43
Table 16 - Hanger Spacing . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 45
Table 17 - Altitude Derate Multiplier for U.S.A. . . . . . . . . . . . . 50
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
Installation, Start-up, Operating and
Service and Maintenance Instructions
on the referenced subject, which is represented only by the standard in its entirety.
Table 18 - Gas Rate (CU ft./hr). . . . . . . . . . . . . . . . . . . . . . . . . . 51
Table 19 - Orifice Size and Manifold Pressure (in. w.c.) for Gas Input
Rate . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 52
Table 20 - Blower Off Delay Jumper Positions . . . . . . . . . . . . . 53
Table 21 - Air Delivery - CFM (With Filter) . . . . . . . . . . . . . . . 53
SERVICE AND MAINTENANCE PROCEDURES. . . . . . . . . . . . 55
WINTERIZATION. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 62
SEQUENCE OF OPERATION . . . . . . . . . . . . . . . . . . . . . . . . . . . . 62
PARTS REPLACEMENT INFORMATION GUIDE . . . . . . . . . . . 67
MODEL NOMENCLATURE . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 67
WARNING
!
CARBON MONOXIDE POISONING HAZARD
Failure to follow this warning could result in personal injury and/or
death.
Carbon Monoxide (CO) is a colorless, odorless, and tasteless poisonous
gas that can be fatal when inhaled. Follow all installation, maintenance,
and service instructions. See additional information below regarding
the installation of a CO Alarm.
Most states in the USA and jurisdictions in Canada have laws that
require the use of Carbon Monoxide (CO) alarms with fuel burning
products. Examples of fuel burning products are furnaces, boilers, space
heaters, generators, water heaters, stoves/ranges, clothes dryers,
fireplaces, incinerators, automobiles, and other internal combustion
engines. Even if there are no laws in your jurisdiction requiring a CO
Alarm, it's highly recommended that whenever any fuel burning product
is used in or around the home or business that the dwelling be equipped
with a CO Alarm(s). The Consumer Product Safety Commission
recommends the use of CO Alarm(s). The CO Alarm(s) must be
installed, operated, and maintained according to the CO Alarm
manufacturer's instructions. For more information about Carbon
Monoxide, local laws, or to purchase a CO Alarm online, please visit the
following website. https://www.kidde.com.
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 .
A200326

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  • Page 1: Table Of Contents

    R92ESN Single-Stage, 35-in. (889 mm) Tall, 4-Way Multipoise High Efficiency Condensing Gas Furnace Installation, Start-up, Operating and Service and Maintenance Instructions NOTE: Read the entire instruction manual before starting the Table 18 – Gas Rate (CU ft./hr)......51 Table 19 –...
  • Page 2: Required Notice For Massachusetts Installations

    R92ESN: Installation, Start-up, Operating and Service and Maintenance Instructions 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.
  • Page 3: Safety Considerations

    R92ESN: Installation, Start-up, Operating and Service and Maintenance Instructions NOTE: ALL DIMENSIONS IN INCH (MM) U.S. ECCN: Not Subject to Regulation (N.S.R.) SD5660-4 REV. - A210210 Fig. 1 – Dimensional Drawing SHIP WT. FURNACE SIZE LB (KG) CABINET WIDTH OUTLET WIDTH...
  • Page 4 R92ESN: Installation, Start-up, Operating and Service and Maintenance Instructions exceed certain local codes and ordinances, especially those that may not WARNING have kept up with changing residential construction practices. We require these instructions as a minimum for a safe installation.
  • Page 5: Introduction

    R92ESN: Installation, Start-up, Operating and Service and Maintenance Instructions Table 1 – Minimum Clearances to Combustible Materials for All This furnace is designed for minimum continuous return-air temperature Units of 60°F (15°C) db or intermittent operation down to 55°F (13°C) db such as when used with a night setback thermostat.
  • Page 6: Codes And Standards

    R92ESN: Installation, Start-up, Operating and Service and Maintenance Instructions Table 2 – Loose Parts Bag DESCRIPTION QUANTITY Outlet Restrictor Plate (provided with 40K BTUH furnaces only; see Note) Air Intake Pipe Flange Vent Pipe Flange Pipe Flange Gaskets Sharp Tip Screws (Vent and Inlet Flanges)
  • Page 7: Electrostatic Discharge (Esd) Precautions Proce

    R92ESN: Installation, Start-up, Operating and Service and Maintenance Instructions • When flexible connectors are used, the maximum length shall not Table 2 for loose parts bag contents. exceed 36 in. (914 mm). This furnace must: • When lever type gas shutoffs are used they shall be T-handle type.
  • Page 8: Air For Combustion And Ventilation

    R92ESN: Installation, Start-up, Operating and Service and Maintenance Instructions CAUTION CAUTION PERSONAL INJURY AND/OR PROPERTY FURNACE RELIABILITY HAZARD DAMAGE HAZARD Failure to follow this caution may result in nuisance limit switch cycling and unit component damage. Improper use or installation of this furnace may result in premature furnace component failure.
  • Page 9 R92ESN: Installation, Start-up, Operating and Service and Maintenance Instructions The requirements for combustion and ventilation air depend upon WARNING whether or not the furnace is located in a space having a volume of at least 50 cubic feet per 1,000 BTUh input rating for all gas appliances CARBON MONOXIDE POISONING HAZARD installed in the space.
  • Page 10 R92ESN: Installation, Start-up, Operating and Service and Maintenance Instructions *Minimum dimensions of 3‐in. (76mm) * Minimum opening size is 100 sq in. (64516 sq. mm) with NOTE: Use any of the following combinations of openings: minimum dimensions of 3‐in. (76mm) A &...
  • Page 11: Condensate Trap

    R92ESN: Installation, Start-up, Operating and Service and Maintenance Instructions Combination of Indoor and Outdoor Air Infiltration rates greater than 0.60 ACH shall not be used. The minimum required volume of the space varies with the number of ACH and shall 1.
  • Page 12 R92ESN: Installation, Start-up, Operating and Service and Maintenance Instructions Remove the screw that secures the Remove pressure switch tube from condensate trap to the collector box front pressure switch and discard. A If alternate vent position and remove trap. new tube is shipped in the loose parts bag.
  • Page 13: Condensate Drain Connection

    R92ESN: Installation, Start-up, Operating and Service and Maintenance Instructions To Relocate the Condensate Trap: NOTICE • Orient the furnace in the downflow position. • Fig. 9 shows the condensate trap and tubing before and after The field-supplied, accessory horizontal drain trap grommet is ONLY relocation.
  • Page 14 R92ESN: Installation, Start-up, Operating and Service and Maintenance Instructions from sagging or being dislocated from the furnace or termination point. In the absence of local codes, consult the current edition of the National Standard Plumbing Code, in the current edition of U.S. or the National Plumbing Code of Canada in Canada.
  • Page 15 R92ESN: Installation, Start-up, Operating and Service and Maintenance Instructions 17. Connect additional condensate piping to a code-approved drain, or to a condensate pump approved for use with acidic furnace condensate and compatible with mineral and vegetable oils, such as canola oil.
  • Page 16: Installation

    R92ESN: Installation, Start-up, Operating and Service and Maintenance Instructions condensate and compatible with mineral and vegetable oils, such as LEVEL 0-IN. (0 MM) TO Carolan oil. 1/2-IN. (13 MM) MAX Allow at least 1/4-in. per foot (20 mm per meter) of slope down and away from the furnace in horizontal sections of drain line.
  • Page 17 R92ESN: Installation, Start-up, Operating and Service and Maintenance Instructions BOTTOM CLOSURE SCREWS (2) Representative drawing. Models may vary. Lay furnace on the back or side Remove the two (2) screws that secure the bottom closure panel to the furnace casing and remove the...
  • Page 18 R92ESN: Installation, Start-up, Operating and Service and Maintenance Instructions CAUTION CAUTION CUT HAZARD MINOR PROPERTY HAZARD Failure to follow this caution may result in personal injury. Failure to follow this caution may result in minor property damage. Sheet metal parts may have sharp edges or burrs. Use care and wear...
  • Page 19 R92ESN: Installation, Start-up, Operating and Service and Maintenance Instructions Table 5 – Opening Dimensions - In. (mm) (Continued) FURNACE PLENUM OPENING FLOOR OPENING CASING WIDTH APPLICATION IN. (mm) Upflow Applications on Combustible or Noncombustible Flooring 21-5/8 16-5/8 22-1/4 (Subbase not required)
  • Page 20: Pa)

    R92ESN: Installation, Start-up, Operating and Service and Maintenance Instructions match the required filter or IAQ device dimensions. See the instructions supplied with factory-accessory duct adapters. Table 6 – Filter Media Pressure Drop (Clean) Versus Airflow - In. W.C. (Pa) Representative After-Market Filter Media...
  • Page 21 R92ESN: Installation, Start-up, Operating and Service and Maintenance Instructions Table 8 – Air Filter Selection and Duct Sizing - In. (mm) FILTER SIZE † FURNACE CASING WIDTH FILTER TYPE SIDE RETURN BOTTOM RETURN 16 x 25 x 3/4 14 x 25 x 3/4...
  • Page 22: Air Ducts

    R92ESN: Installation, Start-up, Operating and Service and Maintenance Instructions AIR DUCTS 4. Adjust outside nut to provide desired height, and tighten inside nut to secure arrangement. NOTICE 5. Reinstall bottom closure panel if removed. 5/ 16 Many states, provinces and localities are considering or have...
  • Page 23: Gas Piping

    R92ESN: Installation, Start-up, Operating and Service and Maintenance Instructions GAS PIPING Gas entry can be from left or right side, or top panel. See Fig. 29 Fig. WARNING Left Side Gas Entry. Gas Pipe Gas Pipe Grommet Required Grommet Required For Direct For Direct Vent Applications Vent Applications.
  • Page 24: Electrical Connections

    R92ESN: Installation, Start-up, Operating and Service and Maintenance Instructions Refer to current edition of NSCNGPIC in Canada. After all connections NOT exceed maximum 0.5 psig (14-in. w.c.) stated on gas control valve. have been made, purge lines and check for leakage at furnace prior to Fig.
  • Page 25 R92ESN: Installation, Start-up, Operating and Service and Maintenance Instructions specifications. A readily accessible means of electrical disconnect must WARNING be located within sight of the furnace. FIRE HAZARD FIELD 24-V WIRING FIELD 115-, 208/230-, 460-V WIRING FACTORY 24-V WIRING Failure to follow this warning could result in personal injury, death, or FACTORY 115-V WIRING property damage.
  • Page 26 R92ESN: Installation, Start-up, Operating and Service and Maintenance Instructions used, the field and factory spliced connections must be located inside the external electrical box. Do not leave splice connections unprotected inside the furnace. GROUND NEUTRAL LINE VOLTAGE A190278 Fig. 35 – Field-Supplied External Electrical Box on Furnace Casing...
  • Page 27 R92ESN: Installation, Start-up, Operating and Service and Maintenance Instructions 6. Pull the ground wire of the field line voltage wiring through the could cause this fuse to blow. If fuse replacement is required, use ONLY strain-relief bushing into the furnace casing.
  • Page 28: Venting

    R92ESN: Installation, Start-up, Operating and Service and Maintenance Instructions 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. 37 – Field-Supplied Isolation Relay for Humidifiers with Internal Power Supply...
  • Page 29 R92ESN: Installation, Start-up, Operating and Service and Maintenance Instructions In Canada, the primer and cement must be of the same manufacturer as raccords, ciments et apprêts conformes au ULC S636. La tuyauterie de the vent system – GVS-65 Primer (Purple) for Royal Pipe or IPEX...
  • Page 30 R92ESN: Installation, Start-up, Operating and Service and Maintenance Instructions Table 12 – Approved Combustion-Air and Vent Pipe, Fitting and Cement Materials 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 2.
  • Page 31 R92ESN: Installation, Start-up, Operating and Service and Maintenance Instructions Do not take combustion air from inside the chimney when using WARNING ventilated combustion air or single-pipe vent option. These furnaces can be vented as direct-vent (two-pipe), ventilated CARBON MONOXIDE POISONING HAZARD combustion air or non-direct (single-pipe) vent system.
  • Page 32 R92ESN: Installation, Start-up, Operating and Service and Maintenance Instructions abandoned chimney to supply outside air to the furnace. See Fig. 47 pipe adapter on the furnace. See Fig. 48. This short inlet air pipe helps to references to vent clearances required by National code authorities.
  • Page 33 R92ESN: Installation, Start-up, Operating and Service and Maintenance Instructions 2. The vent termination must be located at least 3 feet from an inside WARNING corner and follow the clearance distances in the Inside Corner Termination drawing. See Fig. CARBON MONOXIDE POISONING HAZARD 3.
  • Page 34 R92ESN: Installation, Start-up, Operating and Service and Maintenance Instructions No operable windows, doors or Clearance distances for intakes of any type within the items greater than 3 feet shaded areas of Wall A and B. (1 meter ) away from the...
  • Page 35 R92ESN: Installation, Start-up, Operating and Service and Maintenance Instructions There are no additional restrictions on unobstructed distances greater than 8 ft. (2.4 M). All single, two-pipe and concentric vents may be used, providing all other Code and manufacturer’s requirements in these instructions are adhered to.
  • Page 36 R92ESN: Installation, Start-up, Operating and Service and Maintenance Instructions A12326 Fig. 46 – 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.
  • Page 37 R92ESN: Installation, Start-up, Operating and Service and Maintenance Instructions A12325 Fig. 47 – 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.
  • Page 38 R92ESN: Installation, Start-up, Operating and Service and Maintenance Instructions FURNACE NOT IN HORIZONTAL SECTION PIPE DIAMETER TRANSITION IN VERTICAL SECTION OPTIONAL TERMINATION BRACKET FOR 2-PIPE A93034 Fig. 49 – Combustion Air and Vent Pipe Diameter Transition TERMINATIONS Location and Elbow Configuration 12 IN.
  • Page 39 R92ESN: Installation, Start-up, Operating and Service and Maintenance Instructions Include a deduction for a Tee when used for Alberta and Saskatchewan 1. Measure the individual distance from the furnace to the termination terminations. for each pipe. NOTE: Polypropylene venting systems MAY require additional 2.
  • Page 40 R92ESN: Installation, Start-up, Operating and Service and Maintenance Instructions Table 13 – Maximum Equivalent Vent Length 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.
  • Page 41 R92ESN: Installation, Start-up, Operating and Service and Maintenance Instructions Combustion Air and Vent Piping Insulation Guidelines NOTE: Use closed cell, neoprene insulation or equivalent. The vent pipe may pass through unconditioned areas. The amount of exposed pipe allowed is shown in...
  • Page 42 R92ESN: Installation, Start-up, Operating and Service and Maintenance Instructions Rotate vent elbow to required position. Any other unused knockout may be used for combustion air connection. A11312A DOWNFLOW RIGHT CONFIGURATION Requires Accessory Vent Kit See Product Data for Current Kit Number...
  • Page 43 R92ESN: Installation, Start-up, Operating and Service and Maintenance Instructions NOTES FOR VENTING OPTIONS ALTERNATE 1. Attach vent pipe adapter with gasket to furnace casing. COMBUSTION AIR CONNECTIONS 2. Align notches in rubber coupling over standoffs on adapter. Slide clamps over the coupling.
  • Page 44 R92ESN: Installation, Start-up, Operating and Service and Maintenance Instructions 80,000 BTUH Unit Size Uninsulated 3/8-in. Insulation 1/2-in. Insulation Winter Pipe Dia. Design Temp 12.2 12.2 10.7 15.2 27.4 22.9 19.8 15.2 21.3 21.3 21.3 °C 15.2 13.7 10.7 15.2 15.2 12.2...
  • Page 45 R92ESN: Installation, Start-up, Operating and Service and Maintenance Instructions 4. Slide the end of the rubber vent coupling with notches in it over the Table 16 – Hanger Spacing standoffs on the vent pipe adapter. Material 5. Insert a length of vent pipe through the coupling into the outlet of...
  • Page 46 R92ESN: Installation, Start-up, Operating and Service and Maintenance Instructions Two-Pipe and Single-Pipe Terminations 2. Slide the plastic vent pipe adapter over the length of the vent pipe down to the furnace casing. Mark the pipe where it is flush with the Single and two pipe vent must be installed as shown in Fig.
  • Page 47 R92ESN: Installation, Start-up, Operating and Service and Maintenance Instructions 2. Loosely install elbow in bracket (if used) and place assembly on required to be installed on the outlet of the inducer assembly. The outlet combustion-air pipe. restrictor is shown in the footnote of...
  • Page 48: Start-Up, Adjustment, And Safety Check

    R92ESN: Installation, Start-up, Operating and Service and Maintenance Instructions 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 49 R92ESN: Installation, Start-up, Operating and Service and Maintenance Instructions CAUTION WARNING UNIT OPERATION HAZARD FIRE OR EXPLOSION HAZARD Failure to follow this warning could result in personal injury, death, Failure to follow this caution may result in intermittent unit operation and/or property damage.
  • Page 50 R92ESN: Installation, Start-up, Operating and Service and Maintenance Instructions NOTICE NOTICE The NATURAL GAS manifold pressure adjustments in Table 19 If orifice hole appears damaged or it is suspected to have been redrilled, compensate for BOTH altitude AND gas heating value. DO NOT apply check orifice hole with a numbered drill bit of correct size.
  • Page 51 R92ESN: Installation, Start-up, Operating and Service and Maintenance Instructions b. Turn gas valve ON/OFF switch to OFF. c. Loosen set screw on manifold tower pressure tap no more than Burner Flame one full turn with a 3/32-in. hex wrench, or remove the 1/8 inch Burner NPT plug from the manifold pressure tap on the gas valve.
  • Page 52 R92ESN: Installation, Start-up, Operating and Service and Maintenance Instructions g. If clocked rate does not match required input from Step 1, Table 19 - Orifice Size and Manifold Pressure (in. w.c.) for Gas increase manifold pressure to increase input or decrease manifold Input Rate (Cont.)
  • Page 53 R92ESN: Installation, Start-up, Operating and Service and Maintenance Instructions exchangers so that radiant heat does not affect thermometer Change the blower heat taps as required to maintain proper temperature readings. This is particularly important with straight run ducts. rise for Heating and Cooling as described above. To change blower motor speed selections for heating mode, remove blower motor lead 2.
  • Page 54 R92ESN: Installation, Start-up, Operating and Service and Maintenance Instructions Table 21 – Air Delivery - CFM (With Filter) (Continued) EXTERNAL STATIC PRESSURE (IN.W.C.) FURNACE SPEED Function SIZE TAPS 0.10 0.20 0.30 0.40 0.50 0.60 0.70 0.80 0.90 1.00 5, 6 Cooling.
  • Page 55: Service And Maintenance Procedures

    R92ESN: Installation, Start-up, Operating and Service and Maintenance Instructions a. Run furnace for at least 5 minutes. CAUTION b. Gradually block off return air with a piece of cardboard or sheet metal until the limit trips. ENVIRONMENTAL HAZARD c. Unblock return air to permit normal circulation.
  • Page 56 R92ESN: Installation, Start-up, Operating and Service and Maintenance Instructions The electrical ground and polarity for 115-v wiring must be properly Caution must be taken when manually closing this switch for service maintained. Refer to Fig. 32 for field wiring information and to Fig.
  • Page 57 R92ESN: Installation, Start-up, Operating and Service and Maintenance Instructions Care and Maintenance 5. Inspect the vent pipe/vent system before each heating season for water leakage, sagging pipes or broken fittings. Have vent WARNING pipes/vent system serviced by a qualified service agency.
  • Page 58 R92ESN: Installation, Start-up, Operating and Service and Maintenance Instructions 3. All factory wires can be left connected, but field thermostat and WARNING accessory wiring may need to be disconnected depending on their length and routing. ELECTRICAL OPERATION HAZARD 4. If the vent and combustion air pipe passes through the blower compartment, it will be necessary to remove the pipes from the Failure to follow this warning could result in personal injury or death.
  • Page 59 R92ESN: Installation, Start-up, Operating and Service and Maintenance Instructions Cleaning Burners and Flame Sensor 19. Clean burner with a brush and a vacuum. 20. Clean the flame sensor with fine steel wool (0000 grade). Do not The following items must be performed by a qualified service use sand paper or emery cloth.
  • Page 60 R92ESN: Installation, Start-up, Operating and Service and Maintenance Instructions 4. Remove the collector box plug from the top port on the upper WARNING corner of the collector box. See Fig. 5. Attach a funnel with a flexible tube to port on the collector box.
  • Page 61 R92ESN: Installation, Start-up, Operating and Service and Maintenance Instructions 10. Turn power on at external disconnect, fuse or circuit breaker. WARNING 11. Run the furnace through two complete heating cycles to check for proper operation ELECTRICAL SHOCK AND FIRE HAZARD 12.
  • Page 62: Winterization

    R92ESN: Installation, Start-up, Operating and Service and Maintenance Instructions WINTERIZATION LED will be ON continuous, as long as no faults are detected. After the 90-sec period, the furnace will respond to the thermostat normally. CAUTION The blower door must be installed for power to be conducted through the...
  • Page 63 R92ESN: Installation, Start-up, Operating and Service and Maintenance Instructions vac when the blower motor BLWM is operating. When the thermostat is satisfied, the R-to-G-and-Y circuits are opened. The outdoor unit will stop, and the furnace blower motor BLWM will continue operating on the COOL speed for an additional 90 sec.
  • Page 64 R92ESN: Installation, Start-up, Operating and Service and Maintenance Instructions A200518 Manufacturer reserves the right to change, at any time, specifications and designs without notice and without obligations.
  • Page 65 R92ESN: Installation, Start-up, Operating and Service and Maintenance Instructions A190093A Fig. 71 – Troubleshooting Guide Manufacturer reserves the right to change, at any time, specifications and designs without notice and without obligations.
  • Page 66 R92ESN: Installation, Start-up, Operating and Service and Maintenance Instructions 344442-2 Rev. D A210134 Fig. 72 – Wiring Diagram Manufacturer reserves the right to change, at any time, specifications and designs without notice and without obligations.
  • Page 67: Parts Replacement Information Guide

    R92ESN: Installation, Start-up, Operating and Service and Maintenance Instructions PARTS REPLACEMENT INFORMATION GUIDE Casing Group Gas Control Group Blower door Burner Bottom plate Flame sensor Control door Gas valve Door knob assembly Hot surface igniter Top filler plate Manifold Orifice...
  • Page 68 R92ESN: Installation, Start-up, Operating and Service and Maintenance Instructions © 2022 Carrier. All rights reserved. Edition Date: 08/22 Catalog No: R92ESN-03SI REV C A Carrier Company Replaces: R92ESN-03SI REV B Manufacturer reserves the right to change, at any time, specifications and designs without notice and without obligations.

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