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OIL FIRED FURNACE
INSTALLATION AND OPERATION MANUAL
WITH USERS INFORMATION SECTION
MODELS:
OC2-56 OL2-56 OH2-56
OC5-85 OL5-85 OH3-72
OL11-105 OH5-85
OT5-85 OL16-125 OH11-105
OT11-105 OL20-151 OH16-125
OT16-125 OL33-200
OL37-250
OL39-320
WARNING: 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.
DO NOT STORE OR USE GASOL
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I. SAFETY SECTION This page contains various warnings and cautions found throughout the Oil Furnace Manual. Please read and comply with the statements below. WARNING AND CAUTIONS: WARNING: This furnace is not to be used as a construction heater. See Page 1. CAUTION MUST BE TAKEN NOT TO EXCEED 90° ROTATION (OF THE FLUE ELBOW) COUNTERCLOCKWISE FROM THE VERTICAL POSITION. See Page 2. WARNING: When cutting openings in the casing DO NOT CUT ANY SUPPORTING CLIP
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All installations and services must be performed by qualified service personnel. This page contains reproductions of the various instruction and warning labels placed on the Thermo Pride Oil Furnaces. Please read and comply with the contents of these labels. ii
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All installations and services must be performed by qualified service personnel. TABLE OF CONTENTS SECTION BEGINNING PAGE I. SAFETY SECTION i II. GENERAL INSTRUCTIONS 1 A. DRAFT REGULATORS 3 B. DUCT WORK/AIR CONDITIONING 3 C. FILTERS MOUNTED EXTERNAL TO FURNACE 4 D. FAN AND LIMIT POSITION AND LOCATION 6 E. BURNER INSTALLATI
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All installations and services must be performed by qualified service personnel. II. GENERAL INSTRUCTIONS - READ BEFORE START OF INSTALLATION 1. The heating output capacity of the furnace proposed for 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 local codes and/or regulations tak
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All installations and services must be performed by qualified service personnel. The minimum clearances listed in the preceding table are for fire protection. Clearance for servicing the front of the furnace and the rear of the lowboy models should be at least 24 inches. A clearance of 24 inches is recommended for passage to all points on the furnace requiring service access. The OH2-3-5-11-16 furnaces may be installed on combustible flooring. The OL2-5-11-16-20-33-37-39 and OC2-5
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All installations and services must be performed by qualified service personnel. NOTE: ROTATION OF FLUE PIPE IS ONLY ALLOWED FOR LEFT HAND SIDE VENTING APPLICATIONS. TABLE 1: Suggested sizes and positions of flue pipe opening on left hand side of casing. TRIM COLLAR/ UNIT DIA. HOLE “X” DIM. “Y” DIM. FLUE DIA. GASKET PART # OC2 5-1/2” 3-5/8” 28-3/8” 5” 14121/330073 OC5 6-1/2” 4-3/4” 31-7/16” 6” 14131/330005 OH2 5-1/2” 3/5/8” 28-3/8” 5” 14121/330073 OH3
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All installations and services must be performed by qualified service personnel. The duct system should again follow the current design standard of Air Conditioning Contractors of America (ACCA) or ASHRAE Fundamentals volume. The most common location for the A-shaped coil (A style) is shown in Fig. 2. Fig 2: Acceptable locations for the air conditioner evaporator coil. NOTICE: The minimum coil pan clearance for a sectional or drum type heat exchanger is three inches
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All installations and services must be performed by qualified service personnel. On highboy furnaces, it is necessary to cut the return air opening in the side or rear casing, depending upon the needs of the specific installation. The filter rack provided with the furnace, refer to Fig. 5, will serve as a template to scribe a mark for the return air opening on the casing. Place the filter rack on the casing one inch up from the bottom of the furnace and centered from side to side. Place
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All installations and services must be performed by qualified service personnel. D. FAN AND LIMIT POSITION AND LOCATION WARNING: The predetermined fan and limit locations on all of the Thermo Pride oil fired furnaces have been tested and approved by Thermo Products, LLC. in conjunction with Underwriters Laboratories, Inc. Any attempt to relocate these safety controls or replace these safety controls with a control that is not approved, or is incompatible, may result in personal i
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All installations and services must be performed by qualified service personnel. The oil burner will mount on three stud mounting bolts on the lower mounting plate covering the opening in the front of the heat exchanger. The end of the burner tube should be inserted no further than 1/4 inch back from the inside surface of the combustion chamber. A distance further than 1/4 inch back from the inside chamber wall may cause impingement and sooting. NOTE: OVERFIRE AIR TAP MAY BE LOCATED ON
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All installations and services must be performed by qualified service personnel. Fig. 10: (Side view) Burner insertion illustration F. HORIZONTAL FURNACE POSITIONS: The horizontal furnace may be turned end for end, or rotated, making the top into the bottom, as shown in Fig. 11. Fig. 11: A horizontal furnace rotated 180° (or flipped end for end) to reverse airflow direction After the furnace has been positioned, the bottom burner mounting stud must be broken off before mounting
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All installations and services must be performed by qualified service personnel. The OL33, 37 and 39 furnaces have an external wire harness that mounts in pre-punched holes in the side casings (See Fig. 13). A Horizontal furnace is shown below with external wire harness and fan speed terminal strip (blower access panel removed). (See Fig. 14). Fig. 14: The wiring system of a typical horizontal furnace H. BURNER SPECIFICATIONS AND APPLICATIONS THERMO PRIDE BURNER APPLICATIONS FURN
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All installations and services must be performed by qualified service personnel. STANDARD BURNER NOZZLES: The OL2, OH2, OC2 and OC1, along with the OL33, OL37 and OL39 have the nozzles already installed in the burners. The balance of the oil units has the nozzles shipped as loose items with the furnace. Below is a chart showing the heating capacity of the furnace for each approved nozzle size. OIL NOZZLE CAPACITY CHART EQUIVALENT EFFECTIVE HEAT HEATING INPUT RAT
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All installations and services must be performed by qualified service personnel. RIELLO BURNER APPLICATION CHART The optional F3 and F5 Riello flame retention oil burners have been UL listed (UL File #MP3252) for application on the following Thermo Pride oil fired furnaces. MODEL OC5, OL5, OL11, OH11, OL16, OH16, OH3 OL20 PART OH5, OT5 OT11 OT16 MTG. PLATE TOP-25752 35750 35750 35750 35750 PART NO. BTM-35733 MTG. PLATE GASKET 330090 330088 330088 330088 330088
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All installations and services must be performed by qualified service personnel. Fig. 15: Typical Heat Exchanger Cleanout Cover Locations. With access to the inside of the heat exchanger through the burner area, clean-out openings, and vent pipe connection, it is possible to use a long, flexible wire brush and an industrial type vacuum cleaner to remove any soot build-up. NOTE: A one inch (outside diameter) vacuum cleaner hose will fit
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All installations and services must be performed by qualified service personnel. C. INSPECTION AREAS VESTIBULE: The furnace vestibule area or burner compartment should be inspected by removing the front door of the furnace and looking for signs of excessive heat such as discoloration of components materials damage, from rust or corrosion, soot or carbon build-up. EXTERIOR OF FURNACE: The furnace exterior should be inspected for signs of excessive heat such as discoloration of materia
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All installations and services must be performed by qualified service personnel. Fig. 17: Location of the air filter and blower compartment access door on the typical lowboy furnace. OH Series (Highboy) The filter rack will be located between the return air plenum and the return air opening on the side of the furnace, refer to figure 18. Slide the dirty filter out, clean it with a mild soap and water solution. Make sure filter is thoroughly dry before replacing. Fig. 18: Locat
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All installations and services must be performed by qualified service personnel. COMBUSTION AND EFFICIENCY TESTING FOR THERMO PRIDE OIL FIRED CENTRAL FURNACES. Complete this form for each Thermo Pride furnace installed. Read instruction manual carefully before making tests. Retain this form with furnace. CUSTOMER NAME ADDRESS CITY, STATE BURNER MODEL NO. BLAST TUBE LGTH. AIR SHUTTER OPENING HEATING INS. % OF MAX. (EST) SYSTEM CONDITION MATERIAL FURNACE MODEL COMBUSTION CHAMBER TYPE OF VENTING
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All installations and services must be performed by qualified service personnel. APPENDIX-A Replacement Parts List 16
