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Thermo Pride OME-72T36 Installation And Service Manual

Oil-fired furnace down flow & direct vent (sealed combustion)
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DOWN FLOW & DIRECT VENT (SEALED COMBUSTION)
MODEL: OME-72D36 / OME-72T36
INSTALLATION AND SERVICE MANUAL
For installation in:
1. Manufactured Homes
2. Modular Homes/Buildings
3. Site Construction—Residential
Do not store or use gasoline or other flammable vapors and liquids in the vicinity of this or
any other appliance.
Do not try to light any appliance.
Do not touch any electrical switch; do not use any phone in your building.
Immediately call your gas supplier from a neighbor's phone.
Follow the gas supplier's instructions.
If you cannot reach your gas supplier, call the fire department.
:
If the information in these instructions is not followed exactly, a fire or explosion may result
causing property damage, personal injury or loss of life.
: Improper installation, adjustment, alteration, service, or maintenance can cause injury or
property damage. Refer to this manual. For assistance or additional information consult a qualified installer,
service agency, or fuel supplier.
: Do not use this appliance if any part has been underwater. Immediately call a qualified service
technician to inspect the appliance and to replace any part of the electrical or control system that has been
underwater.
PLEASE READ THESE INSTRUCTIONS PRIOR TO INSTALLATION, INITIAL FIRING, AND BEFORE
PERFORMING ANY SERVICE OR MAINTENANCE. THESE INSTRUCTIONS MUST BE LEFT WITH THE USER
AND SHOULD BE RETAINED FOR FUTURE REFERENCE BY QUALIFIED SERVICE PERSONNEL.
MO-487
ECN 5577-MA 190924
OIL-FIRED FURNACE
FOR YOUR SAFETY
WHAT TO DO IF YOU SMELL GAS
THERMO PRODUCTS, LLC.
POST OFFICE BOX 237
DENTON, NC 27239
PHONE: 800-476-4328
:
MADE IN USA

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Summary of Contents for Thermo Pride OME-72T36

  • Page 1 OIL-FIRED FURNACE DOWN FLOW & DIRECT VENT (SEALED COMBUSTION) MODEL: OME-72D36 / OME-72T36 INSTALLATION AND SERVICE MANUAL For installation in: 1. Manufactured Homes 2. Modular Homes/Buildings 3. Site Construction—Residential FOR YOUR SAFETY Do not store or use gasoline or other flammable vapors and liquids in the vicinity of this or any other appliance.

  • Page 3: Safety Section

    NEVER burn garbage or refuse in your furnace. NEVER try to ignite oil or gas by tossing burning papers or other material into your furnace. Thermo Pride oil furnaces are designed to burn commercial standards of No. 1 and No. 2 fuel oil. NEVER USE GASOLINE OR A MIXTURE OF OIL AND GASOLINE.
  • Page 4 All installations and services must be performed by qualified service personnel. If you do not follow these instructions exactly, a fire or explosion may result causing personal injury, loss of life or property damage. NEVER use gasoline or a mixture of oil and gasoline to start the burner or furnace.
  • Page 5 All installations and services must be performed by qualified service personnel. If you suspect there is a problem with the furnace, the venting system or any other related problem, immediately contact a qualified service agency. If a service agency is not available contact your fuel supplier.
  • Page 6 All installations and services must be performed by qualified service personnel. This page and the following page contain reproductions of the various warning and instruction labels placed on the Thermo Pride Oil Furnace. Please read and comply with the contents of these labels.
  • Page 7 All installations and services must be performed by qualified service personnel.

  • Page 8: Table Of Contents

    All installations and services must be performed by qualified service personnel. TABLE OF CONTENTS SECTION BEGINNING PAGE SAFETY SECTION GENERAL INSTRUCTIONS AND CLEARANCES III. FURNACE SPECIFICATIONS INSTALLATION A. ROOF JACK B. STANDARD CHIMNEY C. FURNACE LOCATION D. BASE INSTALLATION 1. Combustible Floor Base Model: 70-BASE 2.

  • Page 9: General Instructions And Clearances

    All installations and services must be performed by qualified service personnel. II. GENERAL INSTRUCTIONS AND CLEARANCES NOTE: READ THIS SECTION BEFORE STARTING INSTALLATION 1. The selection of a furnace heating capacity for a proposed installation should be based on a heat loss calculation made according to the manuals provided by the Air Conditioning Contractors of America (ACCA) or the American Society of Heating, Refrigeration and Air Conditioning Engineers, Inc.
  • Page 10 All installations and services must be performed by qualified service personnel. b. Non-combustible material: “...material that is not capable of being ignited and burned; such as material consisting entirely of, or a combination of, steel, iron, brick, concrete, slate, asbestos, glass, and plaster.” This heating appliance must be installed with clearances to combustible material surfaces of not less than the minimum distances given below.

  • Page 11: Furnace Specifications

    All installations and services must be performed by qualified service personnel. III. FURNACE SPECIFICATIONS MODEL OME-72 Low Fire High Fire HEAT INPUT RATE (BTUH) 70,000 85,000 HEATING CAPACITY (BTUH) 60,000 72,000 BURNER NOZZLE (GPH X ANGLE, HOLLOW CONE) 0.50X80°A 0.60X80°A OIL PUMP PRESSURE (PSIG) VENT PIPE SIZE (INCHES) DESIGN TEMPERATURE RISE (°F)
  • Page 12 All installations and services must be performed by qualified service personnel. FOR BURNER COMBUSTION INFORMATION, REFER TO SECTION (M) – FLUE GAS COMBUSTION ANALYSIS. BLOWER DATA FURNACE MODEL OME-72D36 OME-72T36 BLOWER MODEL 12-9T 12-9T MOTOR H.P. ½ HP ½ HP NO.

  • Page 13: Installation

    All installations and services must be performed by qualified service personnel. IV. INSTALLATION A. ROOF JACK The roof jack assembly and accessories must be listed by a nationally recognized testing agency for the appropriate fuel. The roof jack assembly must be installed according to the vent manufacturer’s instructions prior to the furnace installation.

  • Page 14: Base Installation

    All installations and services must be performed by qualified service personnel. 4. This furnace is ETL listed for closet, alcove or freestanding applications. All applications must comply with the requirements of this manual. Combustible Floor Base Model: 70-BASE Figure 1A. Cottage Base Model: 01COT-BASE Figure 1B.
  • Page 15 ( e.g. high temperature silicone caulk and/or aluminum tape). Notice: If desired, combustion air can be brought in thru the roof of the dwelling and into to the furnace cabinet with Thermo Products Kit AOPS7512. See your local Thermo Pride representative for details or call customer service.
  • Page 16 All installations and services must be performed by qualified service personnel. If the combustion air passageway cannot terminate outside of the skirting or enclosure, a permanent opening with a minimum of 50 square inches of unobstructed infiltration (free area) for ventilation air must be provided for adequate combustion. This permanent opening must be located no less than 12 inches from the bottom of the enclosure or skirting.
  • Page 17 All installations and services must be performed by qualified service personnel. IMPORTANT: Adequate combustion air must be provided under all circumstances. If the underside of the home is skirted or enclosed (e.g. by an enclosed crawlspace), the combustion air intake should exit through the side of cottage base and terminate outside of the structure. All joints and seams of supply ducts and combustion air ducts must be closed with a sealing method suitable to the application conditions and temperatures (e.g.

  • Page 18: Alcove Installation

    All installations and services must be performed by qualified service personnel. E. ALCOVE INSTALLATION In this application, a minimum of 18 inches of clearance must be provided to the front of the unit. Refer to Figure 4. Alcove installations must use the No. 70 mobile home base.

  • Page 19: Combustion Air

    All installations and services must be performed by qualified service personnel. 2. The return air opening may be located in the top, the center or (ideally) the bottom of the closet door, or side wall. Do not obstruct any return air openings, including the return grille on the furnace.
  • Page 20 All installations and services must be performed by qualified service personnel. The preferred location of the outside combustion air intake termination (e.g. an optional stainless steel intake hood, part no.370183) is through the side of the structure, skirting or enclosure. An alternate termination location is under the structure in the skirted or crawlspace area providing a minimum of 50 square inches of free area exists around the perimeter for outside combustion air to be drawn through.
  • Page 21 All installations and services must be performed by qualified service personnel. Figure 6.

  • Page 22: Fuel Piping

    All installations and services must be performed by qualified service personnel. H. FUEL PIPING Sizing and installation of fuel lines must be in accordance with federal, state and local regulations. 1. Oil Tank and Piping All local codes and ordinances take precedence with regard to tank and oil lines. All lines must have oil shutoff valves, a good pipe joint compound approved for use with oil on all pipe threads, no kinks;...
  • Page 23 All installations and services must be performed by qualified service personnel. condensate, which causes the tank to rust. It is also recommended to use a water trap or additives to prevent condensate accumulation. If the tank is above the burner, and gravity oil feed to the burner is permitted, a single line system may be used.

  • Page 24: Electrical Wiring

    All installations and services must be performed by qualified service personnel. Figure 7. J. ELECTRICAL WIRING All electrical wiring must be installed in strict accordance with local ordinances and codes. In the absence of local ordinances and codes, all electrical wiring must conform to the requirements of the National Electric Code, ANSI/NFPA 70-1999, or latest edition.

  • Page 25: Electrical Branch Supply Circuit

    All installations and services must be performed by qualified service personnel. When testing electrical equipment, always follow standard electrical procedures and precautions. 1. Electrical Branch Supply Circuit Route all electrical wiring to the left side of the furnace. The power supply circuit to the furnace must be installed and grounded in accordance with the provisions of the National Electrical Code, ANSI/NFPA-70-1999, or latest edition, and all local codes having jurisdiction.

  • Page 26: Blower Controller Information For Psc/Ctm Motor

    All installations and services must be performed by qualified service personnel. Once the furnace is installed, check the thermostat heat anticipator the proper nominal setting. a. Connect a multimeter, capable of reading milliamps (mA), in series with the low voltage wires to the thermostat.
  • Page 27 All installations and services must be performed by qualified service personnel. “FAN” Fan On Signal “X” 24 VAC from transformer “C” 24 VAC common from transformer “CC” Compressor Contactor “CC_COM” Compressor Contactor Common “LOW” Continuous Blower Speed “HEAT” Blower heat speed tap “COOL”...
  • Page 28 All installations and services must be performed by qualified service personnel. The switched 120 VAC power from the LIMIT switch passes through the board between Pins 1 & 2 of connector P1. EAC (electronic air cleaner) The control provides a 120 VAC output for an electronic air cleaner. This output is energized whenever the fan motor is energized (either low, heat or cool speed).
  • Page 29 All installations and services must be performed by qualified service personnel. To prevent compressor short cycling, a call for cooling will be ignored for four minutes after the termination of any cooling call. The anti-short cycle delay is also in effect at power-up. Heat Mode When a call for heat (“W”) is received from the thermostat, if the “Cool”...
  • Page 30 All installations and services must be performed by qualified service personnel. OME-72D36 ALTERATIONS REQ’D FOR A/C @ DESIGN EXTERNAL STATIC PRESSURE HTG Speed by Input Recommended CLG COOLING High Fire Low Fire Speed UNIT 24,000 Med Low 30,000 Med High 36,000 High Furnace Airflow (CFM) vs.
  • Page 31 All installations and services must be performed by qualified service personnel. OME-72T36 ALTERATIONS REQ’D FOR A/C @ DESIGN EXTERNAL STATIC PRESSURE HTG Speed by Input COOLING UNIT Low fire High Fire Recommended CLG Speed (Color) 24,000 Med / ML 30,000...
  • Page 32 All installations and services must be performed by qualified service personnel. TROUBLE SHOOTING DIAGNOSTIC FEATURES The control board is equipped with 4 green Input Status LEDs and 1 red Board Status LED. These are intended to provide a quick view into furnace performance without requiring a voltmeter. The green Input Status LEDs are driven by the “Y”, “W”, “G”, and “DEHUM”...

  • Page 33: Wiring Diagram

    All installations and services must be performed by qualified service personnel. WIRING DIAGRAM...
  • Page 34 All installations and services must be performed by qualified service personnel.

  • Page 35: Burner Installation

    All installations and services must be performed by qualified service personnel. K. BURNER INSTALLATION The burner mounts to the furnace on three mounting bolt studs, located on the burner mounting plate, in the lower portion of the vestibule, directly in front of the heat exchanger. The burner insertion depth has been fixed by the factory for the design-specified, combination of the air tube length and the combustion chamber used with the furnace.
  • Page 36 All installations and services must be performed by qualified service personnel. NEVER use gasoline or a mixture of oil and gasoline to start the burner or furnace. 1. Qualified service personnel must perform the first lighting of the burner. 2. The burner instructions must be read and understood before any attempt is made to light this burner.

  • Page 37: Flue Gas Combustion Analysis

    All installations and services must be performed by qualified service personnel. combustion efficiency. However, the CO and O values recommended are slightly less, though this means slightly lower efficiency, to allow the burner to better tolerate adverse operating conditions, such as a cold heat exchanger, downdraft conditions, heating content changes in the fuel.
  • Page 38 All installations and services must be performed by qualified service personnel. For typical burner combustion analysis results, refer to the table below. BURNER COMBUSTION PARAMETERS FURNACE MODEL OME-72 LOW-FIRE HIGH-FIRE FUEL TYPE #1 OR #2 FUEL OIL #1 OR #2 FUEL OIL CO (CARBON MONOXIDE) 50PPM OR LESS 50PPM OR LESS...

  • Page 39: Dealer Maintenance

    All installations and services must be performed by qualified service personnel. V. DEALER MAINTENANCE THIS SECTION IS ONLY TO BE PERFORMED BY TRAINED, QUALIFIED SERVICE PERSONNEL, AND NOT BY THE FURNACE OWNER. A. TROUBLESHOOTING Note: Check diagnostic code through view port prior to removing doors. When testing electrical equipment, always follow standard electrical procedures and precautions.
  • Page 40 All installations and services must be performed by qualified service personnel. TROUBLESHOOTING FLOWCHART Note: Check diagnostic code through view port Set thermostat subbase to "HEAT" prior to removing doors. Does thermostat make contact? Is room temperature Wait for room air to cool. above 90 deg.
  • Page 41 All installations and services must be performed by qualified service personnel. Are the thermostat wires Correct wire connections. connected properly? Is the oil primary control supplying 24 VAC to the Replace thermostat. thermostat? Try resetting the oil primary control. Replace the oil primary control, if necessary.
  • Page 42 All installations and services must be performed by qualified service personnel. Try resetting the oil primary After pre-purge, does the control by depressing the oil primary produce a Is there 120 VAC across RESET button. Check cad cell spark at the the ignition transformer? function.
  • Page 43 All installations and services must be performed by qualified service personnel. Check the fuel supply. After fuel valve opens, Is oil present in Open all manual shutoff does the burner ignite? the fuel line at the valve? valves serving the unit. Purge any air in the fuel line.
  • Page 44 All installations and services must be performed by qualified service personnel. Has the high limit thermostat Does system run until Check all wiring for or auxiliary high limit thermostat is satisfied? loose connections. thermostat activated? Check for reduced airflow through the furnace.

  • Page 45: Cad Cell Checkout Procedure

    All installations and services must be performed by qualified service personnel. B. CAD CELL CHECKOUT PROCEDURE: 1. Remove cad cell lead wires, then start the burner. Shortly after burner starts, place a temporary jumper between terminals f & f of the oil primary control. Connect ohmmeter across cad cell lead wires - resistance should be less than 1600 ohms.
  • Page 46 All installations and services must be performed by qualified service personnel. To vacuum and brush the outer radiator of the heat exchanger, go through the cleanout openings in both directions, as shown in Figure 8. Figure 8. Reassemble the furnace to the original factory-built condition. Remount the burner, being certain that the air tube is properly inserted into the chamber opening.

  • Page 47: Cleaning Or Replacing Flue Pipes

    All installations and services must be performed by qualified service personnel. ADJUSTMENT”, SECTION L. : Do not start burner unless blower door is secured in place. D. CLEANING OR REPLACING FLUE PIPES Flue pipes should be inspected during the annual maintenance check-up or during each subsequent service call.

  • Page 48: Users Information Section

    All installations and services must be performed by qualified service personnel. Do not attempt to start burner when excess fuel has accumulated inside the furnace. 6. Follow the “BURNER OPERATION AND ADJUSTMENT” procedure in Section L. VI. USER INFORMATION SECTION A.
  • Page 49 All installations and services must be performed by qualified service personnel. Should the furnace not operate – note diagnostic code through view port prior to removing doors.

  • Page 50: Component Locations

    All installations and services must be performed by qualified service personnel. B. COMPONENT LOCATIONS The following diagram shows a typical furnace installation and typical position of the components referenced in these instructions. Figure 9. C. INSPECTION AREAS IMPORTANT: For safe operation it is the responsibility of the owner and/or user that the burner, chimney/vent pipe, heat exchanger and controls should be inspected every year by a qualified heating contractor.

  • Page 51: Filter Location And Cleaning

    All installations and services must be performed by qualified service personnel. 2. EXTERIOR OF FURNACES: The furnace exterior should be inspected for signs of excessive heat such as discoloration of materials or damage from rust or corrosion. 3. VENT CONNECTOR: The furnace vent pipe should be inspected for signs of rust, corrosion pitting, or holes in the pipe.

  • Page 52: Appendix A. Replacement Parts List

    All installations and services must be performed by qualified service personnel. APPENDIX A. REPLACEMENT PARTS LIST...
  • Page 53 All installations and services must be performed by qualified service personnel.
  • Page 54 All installations and services must be performed by qualified service personnel.

This manual is also suitable for:

Ome-72d36

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