OIL-FIRED FURNACE DOWN FLOW & DIRECT VENT (SEALED COMBUSTION) MODEL: OME-72D36 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. WHAT TO DO IF YOU SMELL GAS • Do not try to light any appliance. • Do not touch any electrical switch; do not use any phone in your building.
All installations and services must be performed by qualified service personnel. I. SAFETY SECTION This page and the following two pages contain various warnings and cautions found throughout this furnace Service and Installation Manual. Please read and comply with the statements on the cover and the statements below. : All local codes and ordinances must be followed with regard to the oil tank and oil lines.
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. : HAZARD OF ASPHYXIATION: Negative pressure inside the closet with closet door closed and the furnace blower operating shall be no more negative than minus 0.05 inch water column.
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. : Personal injury, or property damage, could result from major repair or service of this furnace by anyone other than a qualified contractor.
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.
All installations and services must be performed by qualified service personnel.
All installations and services must be performed by qualified service personnel. TABLE OF CONTENTS SECTION BEGINNING PAGE I. II. III. IV. SAFETY SECTION GENERAL INSTRUCTIONS AND CLEARANCES FURNACE SPECIFICATIONS INSTALLATION A. ROOF JACK B. STANDARD CHIMNEY C. FURNACE LOCATION D. BASE INSTALLATION 1. Combustible Floor Base Model: 70-BASE 2. Cottage Base Model: 01COT-BASE E. ALCOVE INSTALLATION F. CLOSET INSTALLATION G. COMBUSTION AIR H. FUEL PIPING 1. Oil Tank and Piping J. ELECTRICAL WIRING 1.
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. (ASHRAE). 2.
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.
All installations and services must be performed by qualified service personnel. III. FURNACE SPECIFICATIONS MODEL OME-72 Low Fire High Fire1 70,000 85,000 60,000 72,000 HEAT INPUT RATE (BTUH) HEATING CAPACITY (BTUH) BURNER NOZZLE (GPH X ANGLE, HOLLOW CONE) 0.50X80°A OIL PUMP PRESSURE (PSIG) 120 VENT PIPE SIZE (INCHES) 4 DESIGN TEMPERATURE RISE (°F) 65 MINIMUM RETURN AIR TEMP. (°F) 50 SEASONAL EFFICIENCY (AFUE2 *, %) 86 0.60X80°A 1 Burner shipped with 0.
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 MANUFACTURER: MORRISON PRODUCTS, INC. BLOWER MODEL:12-9T, DIRECT DRIVE NOMINAL MOTOR POWER OUTPUT (HORSEPOWER): 1/2 HP 4 SPEED HIGH SPEED AIRFLOW (SCFM) @ 0.5 IN. W.G. EXTERNAL STATIC PRESSURES 1195 ALL SPECIFICATIONS ARE SUBJECT TO CHANGE WITHOUT NOTICE.
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. (Refer to Figure 2 for flue location on furnace.
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. D. BASE INSTALLATION 1.
All installations and services must be performed by qualified service personnel. Use the base bottom panel as a template to mark floor opening locations (see Figure 2). Cut a square opening in the floor for the supply air connector duct. Cut the opening 1-inch larger than the square template opening. (duct requires 1-inch clearance to combustible floor). Cut a combustion air duct opening in the floor 1/8-inch larger than the template opening. Figure 2.
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. Figure 3.
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 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. Note – access to diagnostic view port. Refer to section G. COMBUSTION AIR for additional combustion air requirements. Figure 4. F.
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. To do so may cause the furnace to activate the high temperature limit and shutdown, or it may cause asphyxiation. 3.
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.
All installations and services must be performed by qualified service personnel. Figure 6.
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; no sharp bends and be properly tested for leaks.
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. The line should have a gradual slope downward of approximately 1/2 inch per foot, or more, to a point directly below where it is connected to the pump.
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.
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.
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. b. Increase the thermostat setting, or create a “call for heat”. c. Read the value of the thermostat current, in milliamps. d. Adjust the heat anticipator of the thermostat to the value read by the multimeter.
All installations and services must be performed by qualified service personnel. “X” “C” “CC” “CC_COM” “LOW” “HEAT” “COOL” 24 VAC from transformer 24 VAC common from transformer Compressor Contactor Compressor Contactor Common Continuous Blower Speed Blower heat speed tap Blower cool speed tap A. Inputs Power supplies Line voltage is applied between the “S1” and “N1” quick connect terminals.
All installations and services must be performed by qualified service personnel. 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). Connection is made via male quick connect terminal labeled “EAC”. Humidifier The control provides a 120 VAC output for a humidifier. Connections are made to a male quick connect terminal labeled “FAN”.
All installations and services must be performed by qualified service personnel. Heat Mode When a call for heat (“W”) is received from the thermostat, if the “Cool” mode is not already active, the “TT” terminal is energized and the blower on delay is started. The on-off pattern of DIP switch SW2 (positions 1 and 2) select one of four blower on delay values (see Table 11). When the delay time has elapsed, the “HEAT” blower speed is energized.
All installations and services must be performed by qualified service personnel. DIP SWITCH 2 SECTION STATE FACTORY SETTING 1 2 OFF OFF 30 ON OFF 60 OFF ON 120 ON ON 240 FACTORY SETTING 3 BLOWER DELAY TIMES 4 ON - SEC OFF - MIN OFF OFF 2 ON OFF 4 OFF ON 6 ON ON 8 Table 11: ON and OFF Blower Delay Time Switch Settings Blower On and Off Delays Four Heat blower on and four blower off delays are selected by two dip switches for each function.
All installations and services must be performed by qualified service personnel. 5.
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.
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. 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.
All installations and services must be performed by qualified service personnel. 1. CARBON DIOXIDE (CO2) or OXYGEN (O2): Take a CO2 sample from the flue pipe or vent connector at a position close to the furnace. It is possible to achieve relatively high CO2 (or low O2) readings with low stack temperatures to produce maximum combustion efficiency.
All installations and services must be performed by qualified service personnel. M. FLUE GAS COMBUSTION ANALYSIS : Burner adjustments must be confirmed by instrumentation. Failure to use accurate or calibrated instrumentation to correctly setup the burner may result in reduced efficiency, sooting, and/or the production of hazardous carbon monoxide gas. For typical burner combustion analysis results, refer to the table below.
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. 1. Check for line voltage (110-120VAC) to the furnace.
All installations and services must be performed by qualified service personnel. TROUBLESHOOTING FLOWCHART Set thermostat subbase to "HEAT" Does thermostat make contact? Note: Check diagnostic code through view port prior to removing doors. No Is room temperature above 90 deg. F? Yes Wait for room air to cool. No Yes Yes Turn thermostat setting above room temp.
All installations and services must be performed by qualified service personnel. Are the thermostat wires connected properly? No Correct wire connections. Yes Yes Is the oil primary control supplying 24 VAC to the thermostat? Yes Replace thermostat. No Try resetting the oil primary control. Replace the oil primary control, if necessary.
All installations and services must be performed by qualified service personnel. After pre-purge, does the oil primary produce a spark at the ignition electrodes? No No Is there 120 VAC across the ignition transformer? Try resetting the oil primary control by depressing the RESET button. Check cad cell function. If all else fails, replace the oil primary. Yes Yes Check wiring to the ignition transformer and the electrodes. Also, check ignition electrode gap. Reset if necessary.
All installations and services must be performed by qualified service personnel. No After fuel valve opens, does the burner ignite? No Check the fuel supply. Open all manual shutoff valves serving the unit. Purge any air in the fuel line. Is oil present in the fuel line at the valve? Yes No Are the ignition electrodes positioned correctly? Reposition to correct location. Yes Yes Check for blocked or severely worn burner nozzle. Clean or replace as required.
All installations and services must be performed by qualified service personnel. Yes Does system run until thermostat is satisfied? No Has the high limit thermostat or auxiliary high limit thermostat activated? No Check all wiring for loose connections. Yes Check for reduced airflow through the furnace. This may be caused by an excessively restrictive duct system, an inadequate amount of supply air,especially for furnaces installed in closets, or extremely dirty air filters.
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. 2. Stop the burner and remove temporary jumper. 3. With the burner off, check dark cell resistance across cad cell lead wires.
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. If heavy soot deposits were found in the heat exchanger, this indicates that the burner may be out of adjustment.
All installations and services must be performed by qualified service personnel. D. CLEANING OR REPLACING FLUE PIPES Flue pipes should be inspected during the annual maintenance check-up or during each subsequent service call. Check all flue pipes for restrictions due to soot, or carbon build-up, as well as foreign matter, or any materials, that cause the venting system to restrict the proper venting of combustion products.
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. WARNINGS AND CAUTIONS: : If you suspect there is a problem with the furnace, pertaining to the venting system or any other related problem, immediately contact a qualified service agency.
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. 1.
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. Check for leakage around seams in pipe indicated by soot or condensate streaks. 4.
All installations and services must be performed by qualified service personnel. OIL NOZZLES VESTIBULE HARNESS OIL BURNER POWER HARNESS BLOWER SUB-ASSEMBLY (OME-72D36) AUX LIMIT (NOT SHOWN) ITEMS NOT SHOWN APPENDIX A.
All installations and services must be performed by qualified service personnel.
