International comfort products N9MSE0401410A Service And Technical Support Manual
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International comfort products N9MSE0401410A Service And Technical Support Manual

Single stage, psc blower motor 35” tall, high efficiency condensing gas furnace
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35" Tall, High Efficiency Condensing Gas Furnace
DANGER, WARNING, CAUTION, and NOTE
The
signal
words
CAUTION, and NOTE are used to identify levels of
hazard seriousness. The signal word DANGER is
only used on product labels to signify an immediate
hazard. The signal words WARNING, CAUTION,
and NOTE will be used on product labels and
throughout this manual and other manual that may
apply to the product.
DANGER − Immediate hazards which will result in
severe personal injury or death.
WARNING − Hazards or unsafe practices which
could result in severe personal injury or death.
CAUTION − Hazards or unsafe practices which
may result in minor personal injury or product or
property damage.
NOTE − Used to highlight suggestions which will
result in enhanced installation, reliability, or
operation.

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Printed in U.S.A.
SERVICE AND TECHNICAL
SUPPORT MANUAL
Single Stage, PSC Blower Motor
Save this manual for future reference.
Safety Labeling and Signal Words
DANGER,
WARNING,
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N9MSE
Signal Words in Manuals
The signal word WARNING is used throughout
this manual in the following manner:
WARNING
!
The signal word CAUTION is used throughout
this manual in the following manner:
CAUTION
!
Signal Words on Product Labeling
Signal words are used in combination with
colors and/or pictures or product labels.
Safety−alert symbol
When you see this symbol on the unit and in
instructions or manuals, be alert to the
potential for personal injury.
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MODELS
N9MSE0401410A
N9MSE0601410A
N9MSE0601714A
N9MSE0801716A
N9MSE0802120A
N9MSE1002114A
N9MSE1002120A
N9MSE1202420A
N9MSE1402420A
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 .
440 04 4401 00
Dec. 2011

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Summary of Contents for International comfort products N9MSE0401410A

  • Page 1: Table Of Contents

    PRIME CONDENSATE TRAP WITH WATER ....N9MSE0401410A PURGE GAS LINES ........

  • Page 2: Safety Considerations

    SAFETY CONSIDERATIONS WARNING Improper ins t allation, adjus t ment, alteration, serv ic e, maintenance, or use can cause explosion, fire, electrical shock, PERSONAL INJURY, AND/OR PROPERTY or other conditions which may cause death, personal injury, or DAMAGE HAZARD property damage. Consult a qualified installer, service agency, Failure to carefully read and follow this warning could or your distributor or branch for information or assistance.

  • Page 3: Start−Up Check Sheet

    SERVICE AND TECHNICAL MANUAL Gas Furnace: N9MSE START−UP CHECK SHEET For PSC Models N9MSE (This sheet is optional. Keep for future reference.) Date of Start−Up: Calculated Input (BTU) Rate: (See Checks and Adjustments Section). Dealer Name: Heating Check Address: Measured Line Pressure During Heat: City, State(Province), Zip or Postal Code: Measured Manifold Pressure: Heat...

  • Page 4: Start−Up, Adjustment, And Safety Check

    SERVICE AND TECHNICAL SUPPORT MANUAL Gas Furnace: N9MSE START−UP, ADJUSTMENT, AND SAFETY Figure 1 Priming Condensate Drain CHECK General 1. Furnace must have a 115-v power supply properly connected and grounded. NOTE: Proper polarity must be maintained for 115-v wiring. Control status indicator light flashes code 10 and furnace does not operate if polarity is incorrect.
  • Page 5 SERVICE AND TECHNICAL SUPPORT MANUAL Gas Furnace: N9MSE b. Remove manifold pressure tap plug from gas valve. Figure 2 Orifice Hole c. Connect a water column manometer or similar device to manifold pressure tap. d. Turn gas valve ON/OFF switch to ON. e.
  • Page 6 SERVICE AND TECHNICAL SUPPORT MANUAL Gas Furnace: N9MSE h. When correct input is obtained, replace cap that 2. Verify natural gas input rate by clocking meter. conceal gas valve regulator adjustment screw. Main a. Turn off all other gas appliances and pilots served by burner flame should be clear blue, almost transparent the meter.
  • Page 7 SERVICE AND TECHNICAL SUPPORT MANUAL Gas Furnace: N9MSE Table 2 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.
  • Page 8 SERVICE AND TECHNICAL SUPPORT MANUAL Gas Furnace: N9MSE Table 3 Orifice Size and Manifold Pressure (in. w.c.) for Gas Input Rate − Single Stage SINGLE-STAGE FURNACE (TABULATED DATA BASED ON 20,000 BTUH PER BURNER, DERATED 2%/1000 FT (305M) ABOVE SEA LEVEL) ALTITUDE RANGE HEAT VALUE...

  • Page 9: Adjust Temperature Rise

    SERVICE AND TECHNICAL SUPPORT MANUAL Gas Furnace: N9MSE Table 3 (CONT.) Orifice Size and Manifold Pressure (in. w.c.) for Gas Input Rate − Single Stage SINGLE-STAGE FURNACE (TABULATED DATA BASED ON 20,000 BTUH PER BURNER, DERATED 2%/1000 FT (305M) ABOVE SEA LEVEL) ALTITUDE RANGE HEAT VALUE...

  • Page 10: Adjust Blower Off Delay (Heat Mode)

    SERVICE AND TECHNICAL SUPPORT MANUAL Gas Furnace: N9MSE Check Safety Controls Change these settings as required to maintain proper temperature rise for Heating and Cooling, as described, above. The flame sensor, gas valve, and pressure switch were all To change blower motor speed selections for heating mode, checked in the Start−up procedure section as part of normal remove blower motor lead from control HEAT terminal.
  • Page 11 SERVICE AND TECHNICAL SUPPORT MANUAL Gas Furnace: N9MSE Table 5 COOLING AIR DELIVERY - CFM (With Filter) EXTERNAL STATIC PRESSURE (IN.W.C.) UNIT RETURN-AIR SPEED SIZE CONNECTION TAPS Black 1100 1055 1010 Yellow 0401410 SIDE/BOTTOM Blue Black 1340 1295 1245 1190 1130 1065 1005...

  • Page 12: Service And Maintenance Procedures

    SERVICE AND TECHNICAL SUPPORT MANUAL Gas Furnace: N9MSE SERVICE AND MAINTENANCE Figure 6 Multipoise Orientations PROCEDURES WARNING FIRE, INJURY OR DEATH HAZARD Failure to follow this warning could result in personal injury, death and/or property damage. The ability to properly perform maintenance on this equipment requires certain knowledge, mechanical skills, tools, and equipment.

  • Page 13: Retrieving Stored Fault Codes

    SERVICE AND TECHNICAL SUPPORT MANUAL Gas Furnace: N9MSE Figure 7 Heating and Cooling Application Wiring Diagram − Single−Stage Thermostat 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...

  • Page 14: Care And Maintenance

    SERVICE AND TECHNICAL SUPPORT MANUAL Gas Furnace: N9MSE Care and Maintenance 3. Check electrical connections for tightness and controls for proper operation each heating season. Service as necessary. WARNING 4. Inspect burner compartment before each heating season for rust, corrosion, soot or excessive dust. If necessary, FIRE OR EXPLOSION HAZARD have furnace and burner serviced by a qualified service agency.
  • Page 15 SERVICE AND TECHNICAL SUPPORT MANUAL Gas Furnace: N9MSE 2. Remove blower door. Figure 8 Blower Assembly 3. All factory wires can be left connected, but field MOTOR SHAFT FLAT thermostat and accessory wiring may need to be disconnected depending on their length and routing. 4.

  • Page 16: Cleaning Burners And Flame Sensor

    SERVICE AND TECHNICAL SUPPORT MANUAL Gas Furnace: N9MSE 9. Torque motor mounting bolts to 40 +/− 10 lb−in. when Cleaning Burners and Flame Sensor reassembling. The following items must be performed by a qualified service 10. Torque blower wheel set screw to 160 +/− 20 lb−in. when technician.

  • Page 17: Servicing Hot Surface Igniter

    SERVICE AND TECHNICAL SUPPORT MANUAL Gas Furnace: N9MSE Figure 9 Burner Assembly Figure 11 Igniter Position − Side View URNER UPT. 2−in. 50 mm URNER 3/8−in. 9.6 mm LAME OLL−OUT WITCH 3/16−in. 4.6 mm LAME ENSOR ELOW URNER) L11F064 +0.8 2.5 mm −1.5 Representative drawing only, some models may vary in appearance.

  • Page 18: Flushing Collector Box And Drainage System

    SERVICE AND TECHNICAL SUPPORT MANUAL Gas Furnace: N9MSE c. Inspect igniter for signs of damage or failure. 5. Disconnect external drain from condensate drain elbow or drain extension pipe inside the furnace and set aside. d. If replacement is required, remove the screw that secures the igniter on igniter bracket and remove the 6.

  • Page 19: Winterization

    SERVICE AND TECHNICAL SUPPORT MANUAL Gas Furnace: N9MSE NOTE: If the heat exchangers get a heavy accumulation of Figure 13 Burner Flame soot and carbon, both the primary and secondary heat exchangers should be replaced rather than trying to clean them Burner Flame thoroughly due to their intricate design.
  • Page 20 SERVICE AND TECHNICAL SUPPORT MANUAL Gas Furnace: N9MSE 6. Insert a field supplied funnel into the tube. CAUTION 7. Pour 1 quart of anti−freeze solution into the funnel/tube. Antifreeze should run through the collector box, overfill condensate trap and flow to an open drain. UNIT COMPONENT DAMAGE HAZARD 8.

  • Page 21: Service Label

    SERVICE AND TECHNICAL SUPPORT MANUAL Gas Furnace: N9MSE Figure 14 Service Label 338310−2 Rev F 440 04 4401 00 Specifications subject to change without notice.

  • Page 22: Wiring Diagram

    SERVICE AND TECHNICAL SUPPORT MANUAL Gas Furnace: N9MSE Figure 15 Wiring Diagram 338310−2 Rev F 440 04 4401 00 Specifications subject to change without notice.

  • Page 23: Troubleshooting Flow Chart

    SERVICE AND TECHNICAL SUPPORT MANUAL Gas Furnace: N9MSE Figure 16 Troubleshooting − Flow Chart 440 04 4401 00 Specifications subject to change without notice.
  • Page 24 SERVICE AND TECHNICAL SUPPORT MANUAL Gas Furnace: N9MSE Figure 16 (CONT.) Troubleshooting − Flow Chart 440 04 4401 00 Specifications subject to change without notice.

  • Page 25: Sequence Of Operation

    SERVICE AND TECHNICAL SUPPORT MANUAL Gas Furnace: N9MSE SEQUENCE OF OPERATION EAC will remain energized for 90, 120, 150, or 180 seconds (depending on the heat−OFF delay selection). NOTE: Furnace control must be grounded for proper operation The furnace control CPU is factory−set for a or control will lock out.

  • Page 26: Parts Replacement Information Guide

    SERVICE AND TECHNICAL SUPPORT MANUAL Gas Furnace: N9MSE PARTS REPLACEMENT INFORMATION GUIDE Casing GROUP Gas Control Group Control door Manifold Blower door Burner Top filler plate Orifice Bottom filler plate Flame sensor Door Knob Assembly Hot surface igniter Gas valve Electrical group Heat exchanger group Control box...

  • Page 27: Product Nomenclature

    16 = 1600 CFM (max) 20 = 2000 CFM (max) 22 = 2200 CFM (max) COOLING AIRFLOW SALES (MAJOR) REVISION DIGIT ENGINEERING (MINOR) REVISION DIGIT International Comfort Products, LLC Consumer Relations Department P.O. Box 128 Lewisburg, TN 37091, USA 931−270−4100 440 04 4401 00...

This manual is also suitable for:

N9mse0601410aN9mse0601714aN9mse0801716aN9mse0802120aN9mse1002114aN9mse1002120a ... Show all

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