Nordyne O4LD-091A-12-RA Installation, Operation And Maintenance Manual
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Nordyne O4LD-091A-12-RA Installation, Operation And Maintenance Manual

Nordyne O4LD-091A-12-RA Installation, Operation And Maintenance Manual

Oil fired warm air furnaces
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Installation, Operation and
Maintenance Manual
Oil Fired Warm Air Furnaces
O4LD-091A-12-RA (Lowboy Model)
O4LD-091A-14-RA-DV (Lowboy Model)
FOR YOUR SAFETY:
Do not store or use gasoline or other flammable liquids or
vapors in the vicinity of this, or any other appliance.
ALL INSTALLATIONS MUST MEET ALL
LOCAL, PROVINCIAL/STATE, AND
FEDERAL CODES WHICH MAY
DIFFER FROM THIS MANUAL
NORDYNE INC.
Read this complete manual before
beginning installation. These instructions
must be kept with the furnace for future
reference.
152B-0909

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Summary of Contents for Nordyne O4LD-091A-12-RA

  • Page 1 Installation, Operation and Maintenance Manual Oil Fired Warm Air Furnaces O4LD-091A-12-RA (Lowboy Model) O4LD-091A-14-RA-DV (Lowboy Model) FOR YOUR SAFETY: Do not store or use gasoline or other flammable liquids or vapors in the vicinity of this, or any other appliance.

  • Page 2: Table Of Contents

    A.3 START UP ............................11 OPERATION OF OIL BURNER ......................16 OIL PRIMARY CONTROL DETAILED SEQUENCE OF OPERATION (APPENDIX C)......17 OIL PRIMARY CONTROL LED DIAGNOSTIC LIGHT ................21 FINAL CHECK OUT..........................27 PARTS LISTING: LOWBOY MODEL: O4LD-091A-12-RA AND O4LD-091A-14-RA-DV ....29...

  • Page 3: Introduction

    A central location minimizes the trunk duct sizing. All models may be installed on MODELS O4LD-091A-12-RA AND O4LD-091A- combustible floors. 14-RA-DV The minimum installation clearances are listed in Table...

  • Page 4: Combustion Air

    wiring and electrical connections of the air conditioning NOTE: RECOMMENDED OVER-FIRE controls. DRAFT PRESSURE IS -0.02 IN. W.C. (SEE FIG. 5. COMBUSTION AIR The flue pipe must not pass through any floor or If the furnace is installed in a closet or utility room, two ceiling, but may pass through a wall where suitable fire openings must be provided connecting to a well- protection provisions have been installed.

  • Page 5: Optional Side Wall Venting

    The limit control is thermally operated and automatically resets. The limit control is factory The power requirement for the O4LD-091A-12-RA and installed, pre-set and is not adjustable. O4LD-091A-14-RA-DV models is: 120 VAC, 1 Ø, 60 Hz., 12A.

  • Page 6: Humidifier

    "R" and "W" terminals of the high stack temperatures resulting in poor fuel thermostat. To reduce the risk of damaging the heat efficiency. The O4LD-091A-12-RA and O4LD-091A- anticipator, do not measure this current with the 14-RA-DV furnaces operate most efficiently with a No.

  • Page 7: Burner Primary (Safety) Control

    19. CIRCULATING AIR BLOWER (O4LD-091A- DISCONNECT THE POWER SUPPLY TO THE 12-RA AND O4LD-091A-14-RA-DV) FURNACE BEFORE OPENING THE BLOWER The O4LD-091A-12-RA and O4LD-091A-14-RA-DV ACCESS DOOR TO SERVICE THE AIR furnace models are equipped with PSC motor Direct FILTER, FAN AND MOTOR. FAILURE TO Drive blower systems.

  • Page 8: Maintenance And Service

    Annual Service By Contractor 20. MAINTENANCE AND SERVICE A: Routine Maintenance By Home Owner Other than remembering to arrange for the annual THE COMBUSTION CHAMBER (FIREPOT) IS professional servicing of the furnace by the service or FRAGILE. USE CARE WHEN INSPECTING installation contractor, the most important routine service performed by the homeowner is to maintain the AND CLEANING THIS AREA.

  • Page 9: Operating Instructions

    operate until the fan off time is achieved. The oil burner will then resume operation and continue until the thermostat is satisfied. Restore the thermostat setting to a comfortable temperature. 21. OPERATING INSTRUCTIONS (O4LD-091A- 12-RA AND O4LD-091A-14-RA-DV) To Shut Down Unit Before Lighting Set the thermostat to the lowest possible setting.
  • Page 10 APPENDIX A - O4LD-091A-12-RA and O4LD-091A-14-RA-DV O4LD-091A-12-RA and O4LD-091A-14-RA-DV furnaces may be used with the following oil burners. Please note: The Beckett AF oil burner is for applications using indoor air for combustion only. For sidewall venting applications utilizing outdoor air for combustion, use the Beckett AFII (Balanced Flue) oil burner only.

  • Page 11: Oil Burner Air Adjustment

    A.1 OIL BURNER AIR ADJUSTMENT A.3 START UP For complete details, consult the oil burner instruction The furnace should be operated for a minimum of 10 manual provided in the furnace documents envelope. minutes to reach steady state conditions before fine tuning combustion.
  • Page 12 Power Range Speed Motor Speed Motor O4LD-070A-12-RA 10-10T O4LD-070A-14-RA-DV 1/2 HP Med-Low 1/2 HP 1/2 HP 700 – 1600 O4LD-091A-12-RA 10-10T O4LD-091A-14-RA-DV Med-Low 1/2 HP Med-Low 1/2 HP 1/2 HP 700 – 1600 O4LD-105A-12-RA 10-10T Med- O4LD-105A-14-RA-DV Med-Low 1/2 HP...
  • Page 13 Table A-9: General Dimensions (Inches) CABINET PLENUM OPENINGS FLUE SHIP FILTER WEIGHT WIDTH LENGTH HEIGHT SUPPLY RETURN HEIGHT DIAM. (PERM) (LBS.) D X E F X G O4LD-091A-12-RA and O4LD-091A-14-RA-DV 51½ 20½ x 19 20½ x 18½ 26.25 20 x 20 x 1...
  • Page 14 Chimney Vent Burner Wiring Diagram APPENDIX B: WIRING DIAGRAMS O4LD-091A-12-RA LEGEND/ legende INDOOR BLOWER ventilateur FACTORY WIRING 120 V N (COMMON) principale 24 V filage a l'usine MOTOR FIELD WIRING moteur 120 V filage au champs 24 V 530SE GROUND/Terre...
  • Page 15 Direct Vent Burner Wiring Diagram O4LD-091A-14-RA-DV LEGEND/ legende FACTORY WIRING 120 V INDOOR 24 V filage a l'usine BLOWER FIELD WIRING 120 V ventilateur TO T1 filage au champs principale 24 V N (COMMON) MOTOR TO T2 moteur GROUND/Terre RIELLO 40BF BURNER/brûleur (IF AVAILABLE)/(si disponible) TERMINAL PROVIDED/ point de raccord fourni...

  • Page 16: Operation Of Oil Burner

    the heat anticipator. Set the heat anticipator to the OPERATION OF OIL BURNER amperage measured. Once the furnace flue pipe, electrical and oil line NOTE: FURNACE SHOULD connections have been made, use the following THROUGH AT LEAST THREE FULL CYCLES instructions to set the burner: BEFORE LEAVING...

  • Page 17: Oil Primary Control Detailed Sequence Of Operation

    APPENDIX C OIL PRIMARY CONTROL DETAILED SEQUENCE OF OPERATION Power is applied to unit. The oil primary control completes a self-diagnostic procedure. If no light or flame is present, and unit passes its self-diagnostic procedure, the control enters into the idle mode. Thermostat calls for heat: A) Safety check is made for flame (4 second delay).
  • Page 18 IDLE STATE THERMOSTAT CALLS FOR HEAT OIL PRIMARY CONTROL SEQUENCE OF SAFETY CHECK FOR FLAME REMAINS IN IDLE STATE OPERATION (5 SEC.) NO FLAME BURNER MOTOR & IGNITOR START FLAME 10 SEC. SAFETY CHECK FOR FLAME (5 SEC.) NO FLAME FLAME SOLENOID VALVE OPENS LOCKOUT STATE...
  • Page 19 Table C-1: 1158-120 ELECTRONIC FAN TIMER (EFT) DETAILED SEQUENCE OF OPERATION Mode Action System Response EFT closes the oil primary control T - T connections). Ignition system and the oil primary control start the furnace. Oil flows as long as the oil Thermostat calls for heat.
  • Page 20 FIGURE 2: UNITED TECHNOLOGIES 1158-120 FAN TIMER BOARD (O4LD-019A-12-RA AND O4LD-091A-14-RA-DV)

  • Page 21: Oil Primary Control Led Diagnostic Light

    Troubleshooting OIL PRIMARY CONTROL LED DIAGNOSTIC LIGHT IMPORTANT: Due to the potential hazard of line voltage, only a trained, experienced service The LED diagnostic light has several functions. It indicates the state or mode in which the oil burner technician should perform the troubleshooting is operating.
  • Page 22 Preliminary Checks: Make sure that limit switches are closed and contacts are clean. ELECTRICAL SHOCK HAZARD. Check for line voltage power on the oil primary control TROUBLESHOOTING IS DONE WITH THE black and white lead wires. SYSTEM POWERED. BE CAREFUL TO OBSERVE ALL NECESSARY Refer to Table C-4 or C-5 for further troubleshooting information.
  • Page 23 Condition: Burner starts then locks out on safety with indicator light flashing at 1 Hz rate (½ second on, ½ second off) Procedure Status Corrective Action Check that the limit switches are - - - - - - closed and contacts are clean. Check for line voltage power at the oil primary control.
  • Page 24 Condition: Burner starts then locks out on safety with indicator light flashing at 1 Hz rate (½ second on, ½ second off) Procedure Status Corrective Action Burner locks out. Go to step 10. Check cad cell sighting for Burner keeps running System is OK.
  • Page 25 Table C4: System and General Troubleshooting Problem Possible Cause Remedy Check thermostat and adjust. Also, check thermostat for accuracy; if it is Thermostat not calling for heat. a mercury switch type, it might be off level. Check furnace switch, main electrical panel furnace fuse or circuit breaker.
  • Page 26 Problem Possible Cause Remedy Check electrode settings. Check electrodes for dirt build-up or cracks in Electrodes out of adjustment or porcelain. defective. Poor transformer high voltage Check contacts between the igniter and electrodes. If OK, replace the connections or defective igniter transformer.

  • Page 27: Final Check Out

    Table C-4: System and General Troubleshooting continued Problem Possible Cause Remedy Airflow blocked or dirty air filter. Clean or replace air filter. Supply air temperature too Check all dampers. Open closed dampers including registers in unused hot. Insufficient airflow. rooms. Check system temperature rise. If temperature rise is too high, speed up blower fan.
  • Page 28 HOMEOWNER’S REFERENCE TABLE Model No. Serial No. Date Installed Contractor Contact Address Postal Code Telephone No. After Hours No. If different from Installation Contractor: Service Tech. Telephone No. After Hours No. Fuel Supplier Fuel Oil Supplier Contact Telephone No. After Hours No.

  • Page 29: Parts Listing: Lowboy Model: O4Ld-091A-12-Ra And O4Ld-091A-14-Ra-Dv

    PARTS LISTING: LOWBOY MODEL: O4LD-091A-12-RA AND O4LD-091A- 14-RA-DV Ref. No. Description Part No. Left Side Panel Assembly 29631L Right Side Panel Assembly 29630L Upper Rear Panel 29638L Blower Division Panel Assembly 29676 Base Panel Assembly 28459 Inner Front Panel 30154...
  • Page 30 PARTS LISTING: LOWBOY MODEL O4LD-091A-12-RA and O4LD-091A-14- RA-DV Ref. No. Description Part No. All parts are the same as listed on the previous pages for Model O4LD-091A-12-RA and O4LD-091A-14-RA-DV except where noted below. Oil Burner Mounting Plate Assembly 29872 Oil Burner Mounting Plate...
  • Page 32 NOTES: Nordyne, Inc., 8000 Phoenix Parkway, O’Fallon, Missouri, 63368 152B-0909...

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O4ld-091a-14-ra-dvO4ldO4

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