59MN7B
Modulating 4---Way Multipoise
Condensing Gas Furnace
Installation, Start---up, Operating and
Se rvice and Maint enance Inst ructions
NOTE: Read the entire instruction manual before starting the installation.
SECTIONS
SAFETY CONSIDERATIONS 3.........................
INTRODUCTION 4...................................
CODES AND STANDARDS 5...........................
ELECTROSTATIC DISCHARGE (ESD) PRECAUTIONS 5...
ACCESSORIES 6.....................................
LOCATION 6........................................
AIR FOR COMBUSTION AND VENTILATION 9..........
CONDENSATE T RAP 10...............................
CONDENSATE DRAIN CONNECTION 15................
INSTALLATION 19...................................
AIR DUCTS 28.......................................
GAS PIPING 32......................................
ELECTRICAL CONNECTIONS 33.......................
VENTING 40........................................
START-- UP, ADJUSTMENT, AND SAFETY CHECK 64......
SERVICE AND MAINTENANCE PROCEDURES 79........
SEQUENCE OF OPERATION 92........................
PARTS REPLACEMENT GUIDE 97......................
TABLES
Loose Parts Bag Contents 6..............................
Minimum Clearances to Combustible Materials 6.............
Minimum Free Area Required 10.........................
Minimum S pace Volumes 10.............................
Filter Size Information 24...............................
Opening Dimensions 26................................
Air Delivery CFM 29...................................
Electrical Data 29......................................
Maximum Capacity of Pipe 32...........................
Vent Termination Kit for Direct Vent (2--Pipe) Systems 42......
Hangar Spacing 49.....................................
Combustion--Air Vent Pipe, Fitting & Cement Material.. 52.....
Maximum Allowable Exposed Vent Lengths Insulation 53......
Maximum Equivalent Vent Length 54......................
Deductions from Maximum Equivalent Vent Length 54........
Altitude Derate Multiplier for U.S.A. 67....................
Blower Off Delay Setup Switch 70........................
Gas Rate 75..........................................
Orifice Size and Manifold Pressure 75.....................
Use of the AHRI Certified TM Mark indicates a
manufacturer’s participation in the program.
For verification of certification for individual
products, go to www.ahridirectory.org .
Portions of the text and tables are reprinted from NFPA 54/ANSI Z223.1E, with permission of National Fire Protection Association,
Quincy, MA 02269 and American Gas Association, Washington DC 20001. This reprinted material is not the complete and official position
of the NFPA or ANSI o n the referenced subject, which is represented only by the standard in its entirety.
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