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P/N: MO-426 (Printed Instruction Manual)
Note: This page is not to be included as part of printed hard copy.
Overall Specifications:
Material: white plain paper
Printed text: black
Binder: staple upper left corner
Individual page specifications:
Cover page: printed single-side up
The balance of instruction manual pages to be printed utilizing both front and back side of paper.
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OIL-FIRED CENTRAL FURNACE Installation, Operation, And Service Manual With Users Information Section Models: CHB68-112 CHC68-96 CLBF68-112 CLBR68-112 c WARNING: • Do NOT store or use gasoline or other flammable vapors and liquids in the vicinity of this or any other appliance. • Improper installation, adjustment, alteration, service, or maintenance can cause a fire or explosion resulting in property damage, personal injury, or loss of l
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Contents SECTION PAGE Notice to the Installer .................................................................................................. 4 INSTALLATION GUIDELINES ...................................................................................... 5 Codes ................................................................................................................. 5 Installation Location .................................................................
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APPENDIX A: SOURCES FOR REFERENCED STANDARDS ................................... 40 APPENDIX B: ELECTRICAL DIAGRAMS ..................................................................... 41 APPENDIX C: SPECIFICATION SHEETS .................................................................... 43 APPENDIX D: REPLACEMENT PARTS ....................................................................... 46 3
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Notice to the Installer Installation of this oil-fired furnace must be performed by a qualified installer in accordance with all local codes and authorities having jurisdiction. In the absence of local governing codes, installation shall conform to these instructions and to the regulations of the National Fire Protection Association’s Standard for the Installation of Oil-Burning Equipment, NFPA 31- 2001, and the National Electrical Code, ANSI/NFPA 70-2002, or the latest editions thereof.
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INSTALLATION GUIDELINES Codes All local codes and regulations take precedence over the instructions in this manual and shall be followed accordingly. In the absence of local codes, this installation must conform to these instructions and to the regulations of the National Fire Protection Association (NFPA) publications, the Standard for the Installation of Oil-Burning Equipment, NFPA 31-2001, and the National Electrical Code, ANSI/NFPA 70-2002, or the latest editions thereof. To obtai
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Figure 1: Recommended Support Frame for Horizontal / Counterflow Furnaces Closet and Alcove Installation All furnace models may be installed in a closet or alcove on combustible flooring with specified (standard) clearances to combustible construction. The horizontal / counterflow furnace model requires an optional combustible surface-mounting base (model # CSFB-HC68) for vertical installation (i.e., counterflow configuration) directly on combustible materials, refer to Figure 2.
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Accessibility clearances, which are typically greater, may exceed fire protection clearances. Therefore, consider providing at least 24 inches of clearance from the front (and the rear, for lowboy furnaces) of the furnace to obstructions and surfaces for adequate service and maintenance access. The minimum clearances from furnace casing surfaces to combustible materials are: • 3 inches from casing sides and rear • 8 inches from front casing of furnace to the closet door, with exceptio
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Often, household chemicals contain chloride-bearing compounds. There are many compounds representative of this classification of chemicals. A few common examples are listed below. • Cleaning solvents • Varnish and paint removers • Bleaches • Fabric softeners • Water softener salt • Tile adhesives Avoid storing or using these chemicals within close proximity to the furnace. In addition, avoid storing or using any chemicals, of an unknown and possibly flammable nature, in close prox
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Provide two (2) permanent openings, one (1) located within 12 inches of the floor and one (1) within 12 inches of the ceiling, or roof, of the room. These openings shall allow for direct exchange of air between the room and outdoors. If required, ducting between the room and the outdoors shall be provided. • For horizontally -oriented ducts, each opening shall have a minimum free area of one (1) square inch per 2000 BTUH of the total input rate (sum of the individual appliance input ra
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Chimney Inspection The chimney, vent, or any passageway for the stack gases to flow to the outdoor atmosphere is a very important part of the heating system. No furnace, regardless of the efficiency of the design, can perform satisfactorily when the chimney to which it is connected is inadequate or in poor condition. Any of the following symptoms may indicate a chimney has severe structural damage and is unsuitable for use. • Chimney appears to be leaning to the side. • Chimney appear
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If desired, with the furnace flue elbow turned to the right, the standard furnace top front panel (p/n 52-17346-1) may be replaced with the top front panel from the rear flue lowboy model (p/n 52-17383-1). Refer to Appendix D: Replacement Parts for sketches of these parts. Contact your Crown distributor to purchase this part. All horizontal sections of the vent connector must slope upward not less than ¼ inch per foot from the furnace to the vent termination. Long horizontal sections of t
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Duct Work and Air Conditioning Design and installation of the duct system should follow the current guidelines of the Air Conditioning Contractors of America (ACCA) or the American Society of Heating, Refrigeration and Air Conditioning Engineers, Inc. (ASHRAE). Refer to the Residential Duct Systems, Manual D, from the ACCA, and the ASHRAE Handbook Fundamentals volume, from ASHRAE, for recommended practices in duct system design and installation. To obtain copies of these publications for
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On the highboy furnace, it is necessary to cut the return air opening in the lower side, or rear, of the casing depending upon the needs of the specific installation, refer to Figure 3. Figure 3: Cutaway view of fan section of a typical highboy furnace. The side casings have each been pre-punched with four (4), square, knockout openings for use in locating the proper position for the return air filter rack. On the side of the furnace, where the return air duct will attach, scribe a l
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Electrical Connections NOTICE: All field wiring must conform to local, state, and national installation codes. A disconnecting switch equipped with overcurrent protection rated at 15 A. (e.g. a time delay-type fuse or inverse time, circuit breaker) should be installed in the service line for shutting down and protecting the furnace and electrical system. Since the furnace is entirely pre-wired at the factory, it is only necessary to connect the building electrical service lines to
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The room thermostat should be located on an interior wall in the natural circulating path of the room air. The thermostat should not be installed in a location where it is directly exposed to, • cold air infiltration, i.e. drafts from outside openings such as windows and doors, • air currents produced by supply air registers, and • heat from a nearby source, such as a fireplace, electrical appliances, lamps, solar radiation, a wall enclosing warm air ducts, a chimney, or a flue gas ve
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Nozzle selection (i.e. heating capacity of the furnace) shall be based on a rate of heat loss (heating load) calculation for the building. These calculations should be 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). Refer to the Residential Load Calculation, Manual J, from the ACCA, and the ASHRAE Handbook Fundamentals volume, from ASHRAE, for t
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Figure 4: Side view of correct burner insertion into combustion chamber 4) Push the burner flange gasket (included with the burner) on to the burner mounting plate threaded studs. Seat the gasket against the mounting plate. 5) Using fasteners supplied in the parts bag with each furnace, three (3) 5/16 in. brass hex nuts and three (3) steel flat washers, install and secure the burner to the mounting studs on the burner mounting plate, refer to Figure 5. (For counterflow /
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the gap between the outer surface of the air tube and the inner wall surface of the combustion chamber opening to provide a seal, keeping hot combustion gases within the chamber. 6) Insert and secure the cable or conduit from the wiring harness in the burner junction box. Snap together the two (2) mating, multipin quick connections, on the wiring harness from the furnace fan center and the wiring harness of the oil burner, inside the burner junction box. • For the Riello 40-F3 burner
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Horizontal / Counterflow Furnace Setup The horizontal / counterflow furnace is shipped from the factory upright for vertical installation (counterflow configuration). If the furnace is to be installed lying down on the right-hand or left-hand side (horizontal configuration), the positions of the oil burner and the fan and limit control thermostat may have to be changed. The horizontal furnace may be turned end for end, or rotated, making the top into the bottom, as shown in Figure 6. R
