Carrier 58DFA Installation, Start-up, And Operating Instructions Manual

Also see for 58DFA: Installation, start-up, and operating instructions Service and maintenance instructions

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Carrier 58DFA Installation, Start-up, And Operating Instructions Manual Manual pdf 1 page image

58DFADownflow Induced-Combustion FurnacesInstallation, Start-Up, and Operating InstructionsSizes 071-135 Series 120NOTE: Read the entire instruction manual before starting theinstallation.Index PageSAFETY CONSIDERATIONS .....................................................1Clearance From Combustible Materials...................................1INTRODUCTION.......................................................................1-2Dimensional Drawing ...............................................................2LOCATION....................................................................................3General ......................................................................................3Location Relative To Cooling Equipment ...............................3Hazardous Locations.................................................................3AIR FOR COMBUSTION AND VENTILATION...................3-5Unconfined Space..................................................................3-4Confined Space......................................................................4-5SUPPLY-AIR PLENUM INSTALLATION..............................5-6Concrete Slab ............................................................................5Combustible Floor ..................................................................5FILTER ARRANGEMENT...........................................................6GAS PIPING ..................................................................................6ELECTRICAL CONNECTIONS...............................................6-7115-v Wiring..........................................................................6-724-v Wiring .............................................................................7Accessory ..................................................................................7VENTING ......................................................................................7START-UP, ADJUSTMENT, AND SAFETY CHECK ..............7General ......................................................................................7Sequence Of Operation .......................................................7-10Heating Mode............................................................................8Cooling Mode ......................................................................8-10Continuous Blower Mode.......................................................10Start-Up Procedures ................................................................10Adjustments .......................................................................10-12Check Safety Controls.......................................................12-13Checklist ................................................................................13SAFETY CONSIDERATIONSInstalling and servicing heating equipment can be hazardous due togas and electrical components. Only trained and qualified person-nel should install, repair, or service heating equipment.Untrained personnel can perform basic maintenance functionssuch as cleaning and replacing air filters. All other operations mustbe performed by trained service personnel. When working onheating equipment, observe precautions in the literature, on tags,and on labels attached to or shipped with the unit, and other safetyprecautions that may apply.Follow all safety codes. In the United States, follow all safetycodes including the National Fuel Gas Code NFPA No. 54-1992/ANSI Z223.1-1992 (NFGC). In Canada, refer to the currentedition of the National Standard of Canada CAN/CGA-B149.1-and .2-M91 Natural Gas and Propane Gas Installation Codes(NSCNGPIC). Wear safety glasses and work gloves. Have fireextinguisher available during start-up and adjustment proceduresand service calls.Understand the signal word DANGER, WARNING, or CAU-TION. These words are used with the safety-alert symbol. DAN-GER identifies the most serious hazards which will result in severepersonal injury or death. WARNING signifies hazards that couldresult in personal injury or death. CAUTION is used to identifyunsafe practices which would result in minor personal injury orproduct and property damage.NOTE is used to highlight suggestions that will result in enhancedinstallation, reliability, or operation.These instructions cover minimum requirements and conform toexisting national standards and safety codes. In some instances,these instructions exceed certain local codes and ordinances,especially those that may not have kept up with changing residen-tial construction practices. We require these instructions as aminimum for a safe installation.Table 1—Clearances From CombustibleMaterials (In.)UNIT SIZE 071 091-135Sides Single-Wall Vent 1 0Type B-1 Double-Wall Vent 0 0Back 0 0Top 1 1Front Single-Wall Vent 6* 6*Type B-1 Double-Wall Vent 3 3Vent Single-Wall Vent 6 6Type B-1 Double-Wall Vent 1 1NOTES:1. Provide 30-in. front clearance for servicing. An open door in front of thefurnace can meet this requirement.2. A minimum clearance of 3 in. must be provided in front of the furnace forcombustion air and proper operation.INTRODUCTIONThe model 58DFA Series 120 Continuous-Pilot Furnaces areavailable in sizes 71,000 through 135,000 Btuh input capacities.® ama CANADIAN GAS ASSOCIATIONA P P R O V E DRManufacturer reserves the right to discontinue, or change at any time, specifications or designs without notice and without incurring obligations.Book 1 4Tab 6a 8a PC 101 Catalog No. 565-812 Printed in U.S.A. Form 58DF-9SI Pg 1 11-93 Replaces: 58DF-6SI→→→