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OIL FIRED FURNACE
INSTALLATION AND OPERATION MANUAL
WITH USERS INFORMATION SECTION
MODEL:
OH6FA072D48B OH6FA072DV4B OH8FA119D60B OH8FA119DV5B
OH6FA072D48R OH6FA072DV4R OH8FA119D60R OH8FA119DV5R
OH6FA072D48N OH6FA072DV4N
OH6FX072DV4R
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 GASOLINE OR OTHER FLAMMABLE VAPORS AND LIQUIDS IN THE
VI
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CONTENTS SECTION PAGE I. SAFETY SECTION 1 A. CODES AND CLEARANCES 3 B. MAKE-UP AIR 4 II. GENERAL INSTRUCTIONS 5 A. CHIMNEY 6 B. VENTING 10 C. DRAFT REGULATORS 11 D. DUCT WORK/AIR CONDITIONING 11 E. AIR FILTER(S) 15 F. LIMIT POSITION AND LOCATION 17 G. BURNER INSTALLATION 18 H. BURNER SPECIFICATIONS AND APPLICATIONS 19 I. OILTANK AND PIPING 22 J. OIL FILTER 2
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Model Number Digit 1 2 3 4 5 6 7 8 9 10 11 12 Oil Furnace Model Nomenclature Example Model Numbers O H 6 F A 0 7 2 D 4 8 B O H 6 F A 0 7 2 D V 4 R O H 8 F A 1 1 9 D 6 0 B O H 8 F A 1 1 9 D V 5 R O = Oil O H = Highboy D = Downflow H 6 = Heat Exchanger Size Identifier 6 F = Front F R = Rear R A = Single Stage A X = 2
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I. SAFETY SECTION This page and the following 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 3 WARNING: The predetermined limit locations on all of the Thermo Pride oil fired furnaces have been tested and approved by Thermo Products, LLC. Any attempt to relocate these safety controls or replace the
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The entire text of these instructions must be read and understood, before installing the appliance. It is the installer's responsibility to do the following: 1. Inform and demonstrate to the user, the correct operation and maintenance of the appliance, as explained in the Homeowner/User Information and Routine Maintenance section of this manual. 2. Inform the user of the hazards of flammable liquids and vapors and to remove such liquids and vapors from the vicinity of the appliance.
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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.” : Carefully read and thoroughly understand the following guidelines and warnings before continuing with the installation of this appliance. Failure to follow these guidelines can cause improper and unsafe operation of this appliance. Unsafe operation can result in
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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 take precedence over the instructions in this manual and should be followed ac
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A. CHIMNEY: The furnace must be connected to an adequate chimney or an approved vent in accordance with these instructions. An adequate chimney is one that is sealed and lined with the capability of producing a (-).04" WC flue draft and having the capacity to handle the amount of stack gases that are introduced into it. A chimney with an internal construction of corrosion resistant tile, stainless steel, or some other material that will withstand flue gas temperatures up to 900°F is re
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2. PROPER CHIMNEY HEIGHT: The chimney shall terminate at least 3 feet above the highest point where it passes through the roof of a building and at least 2 feet higher than any portion of a building within a horizontal distance of 10 feet. (See Fig. 2a). Fig. 2: Proper chimney termination height for pitched roofs If the chimney penetrates a roof more than 10 feet from a ridge, wall or parapet, a minimum of 3 feet above roof or exit point must be maintained
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4. PROPER CHIMNEY BOTTOM LEVEL: In cases where the chimney extends to the basement floor, the draft can usually be improved by filling the base of the chimney with sand to within 12 inches of the vent connector pipe after relocating the clean-out door. (See Fig. 5). Fig. 5: Suggested method to improve chimney draft. 5. TIGHT JOINTS: All joints of the chimney must be tightly sealed. The inside of the chimney should be free of any obstructions, such as loose brick, broken pieces of ti
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Fig. 7: Alternate constructions that allow reduced clearances to combustible materials. REDUCTION OF CLEARANCES WITH SPECIFIED FORMS OF PROTECTION: Type of protection applied to and covering all surfaces of combustible material within the distance specified as the required clearance with no protection unless otherwise noted, all dimensions in inches, refer to Fig. 7. 18 inches 9 inches 6 inches Required clearance with no protection from the appliance or Sides & Sides & Sides &
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B. VENTING: NOTE: On the OH6 & OH8 it is possible to rotate the flue elbow (which is factory installed for vertical discharge) 90° counter clockwise from the vertical position to adapt to various venting systems. The OH8 flue elbow can also be rotated 90° clockwise. Notice: Blocked Vent Switch Installation The blocked vent switch kit must be installed to comply with CAN STD B140.4 where applicable. For installation instructions see AOPS2687 kit. CAUTION MUST BE TAKEN NOT
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C. DRAFT REGULATORS: Note: Do not use with Direct Vent application. A draft regulator is supplied with the furnace and should be installed according to the regulator manufacturers recommendations. With the burner operating, use a draft gauge to adjust the regulator to the proper setting. (refer to the instructions enclosed with draft regulator to adjust to the proper setting). When the burner air supply and draft are properly adjusted, the over fire draft should be a negative (-).01"
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1. Supply and return air ducts have to be furnished by the installer and run between the appliance, which must be installed outdoors, and the interior of the structure the appliance serves. These ducts must be sealed to the casing of the appliance. 2. To reduce the transmission of vibration and noise to the duct system and to reduce flexure of the duct system due to thermal expansion and contraction, it is recommended that flexible joints be installed at the supply and return duct conn
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g. Using the selected air flow rates for each component of the duct system and manufacturer’s literature, or published literature on duct system pressure drops, the pressure drop for each component in the duct system can be estimated. The ASHRAE Handbook – Fundamentals is an excellent source of duct system design principles and pressure drop data. Conversely, for a specified type of fitting, it is also possible to determine the required size or diameter of the component for a specifie
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Table 3: Suggested Duct Sizes for Homes, Quiet Offices, Or Similar Installations (Based on a 0.1 in. W.G. static pressure drop per 100 ft. of duct.) 7. The supply and return air ducts, or flexible joints, should be carefully secured and sealed to the appliance housing to prevent air leakage from, or into, the duct system. For best performance, insulate the outside surfaces of the ducts to reduce heat loss from, or heat gain to, the ducts. 8. As a final step in the installation,
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SIZING THE DUCT WORK FOR A COMBINATION HEATING AND COOLING SYSTEM: Two formulas must be used in determining the CFM requirements of a combustion heating and cooling system. 1. HEATING CFM: HEAT OUTPUT OF FURNACE (BTUH) 1.1 X TR (TEMPERATURE RISE, °F) = HEATING(CFM) EXAMPLES: A. 110,000 BTUH OUTPUT 1.1 X 85°F TR = 1176 CFM FOR HEATING B. 110,000 BTUH OUTPUT 1.1 X 70°F TR = 1429 CFM FOR HEATING 2. COOLING CFM: 400 CFM X COOLING TONNAGE (
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Connect the return air plenum to the filter rack and slide the filter into place. Dimensions for adapting the return air plenum to the filter rack are provided (See Fig. 10a & 10b). Fig. 10a: A typical filter rack and dimensions for the OH6 furnace. Fig. 10b: A typical filter rack and dimensions for the OH8 furnace. : Failure to comply with minimum filter installation requirements may affect the performance and/or void the warranty on this unit. If a method other
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Maximum Filter Type Air Velocity Model Number (ft/min) OH6 OH8 *Thermo Products 600 384 in² 480 in² Supplied Permanent Standard 500 461 in² 576 in² Permanent Disposable 300 768 in² 960 in² Table 4: Minimum Required Filter Area (in square inches) * The Thermo Products supplied filter can be cut to size to fit other filter retention systems as long as the maximum air velocity is not exceeded. NOTICE: Any internal stiffeners used in the filter must not be removed, although
