Installation, Start-up, Operating andService and Maintenance InstructionsNOTE: Read the entire instruction manual before starting the installation.Approved for installations up to 5,400 feet (1646 meters)TABLE OF CONTENTSRequired Notice for Massachusetts Installations . . . . . . . . . . . . . . . . 2SAFETY CONSIDERATIONS . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4Table 1 – Minimum Clearances to Combustible Materials for All Units5INTRODUCTION . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 5Table 2 – Loose Parts Bag . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 6CODES AND STANDARDS. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 6ELECTROSTATIC DISCHARGE (ESD) PRECAUTIONS PROCE-DURE . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 7ACCESSORIES . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 7LOCATION . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 7AIR FOR COMBUSTION ANDVENTILATION . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 8Table 3 – Minimum Free Area Required for Each Combustion AirOpening or Duct to Outdoors. . . . . . . . . . . . . . . . . . . . . . . . . . . . 10Table 4 – Minimum Space Volumes for 100% Combustion, Ventila-tion and Dilution Air from Outdoors . . . . . . . . . . . . . . . . . . . . . . 10CONDENSATE TRAP. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 11Condensate Drain Connection . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 11Table 5 – Condensate Trap Configurations . . . . . . . . . . . . . . . . . 13INSTALLATION . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 13Table 6 – Evaporator Coil Spacer or Shield Requirements. . . . . 16AIR DUCTS . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 20Table 7 – Air Filter Selection and Duct Sizing - In. (mm) . . . . . 21Table 8 – Opening Dimensions - In. (mm) . . . . . . . . . . . . . . . . . 21Table 9 – Filter Media Pressure Drop (Clean) Versus Airflow - In.W.C. (Pa) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 21Table 10 – Filter Media Pressure Drop (Clean) Versus Face Velocity-In. W.C. (Pa) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 22Table 11 – Air Delivery - CFM (With Filter) . . . . . . . . . . . . . . . 22GAS PIPING. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 23Table 12 – Maximum Capacity of Pipe . . . . . . . . . . . . . . . . . . . . 24ELECTRICAL CONNECTIONS. . . . . . . . . . . . . . . . . . . . . . . . . . . 25Table 13 – Electrical Data . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 29NOTES FOR THERMOSTATS. . . . . . . . . . . . . . . . . . . . . . . . . . . . 31VENTING. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 31Table 14 – Vent Termination Kit for Direct Vent (2-pipe) Systems32Table 15 – Hanger Spacing . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 38Notes for Venting Options . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 40Table 16 – Approved Combustion-Air and Vent Pipe, Fitting and Ce-ment Materials (U.S.A. Installations) . . . . . . . . . . . . . . . . . . . . . 41Table 17 – Maximum Allowable Exposed Vent Length in Uncondi-tioned Space - Ft. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 41Table 18 – Maximum Equivalent Vent Length - Ft. . . . . . . . . . . 42Table 19 – Deductions from Maximum Equivalent Vent Length - Ft.(M) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 42START-UP, ADJUSTMENT, AND SAFETY CHECK . . . . . . . . . 48Table 20 – Altitude Derate Multiplier for USA. . . . . . . . . . . . . . 50Table 21 – Blower Off Delay Setup Switch . . . . . . . . . . . . . . . . 51Table 22 – Gas Rate (CU ft./hr). . . . . . . . . . . . . . . . . . . . . . . . . . 52Table 23 – Gas Valve Outlet Pressure for Gas Heat Values at Altitude- 60,000 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 53Table 24 – Gas Valve Outlet Pressure for Gas Heat Values at Altitude- 80,000 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 53Table 25 – Gas Valve Outlet Pressure for Gas Heat Values at Altitude- 100,000 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 54SERVICE AND MAINTENANCEPROCEDURES . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 54WINTERIZATION. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 61SERVICE GUIDE . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 68PARTS REPLACEMENT INFORMATION GUIDE . . . . . . . . . . . 69Model Nomenclature . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 69A200352Portions of the text and tables are reprinted from NFPA 54/ANSI Z223.1E, with permission of National Fire Protection Association, Quincy, MA02269 and American Gas Association, Washington DC 20001. This reprinted material is not the complete and official position of the NFPA or ANSIon the referenced subject, which is represented only by the standard in its entirety.59CU5ASingle-Stage, Upflow/Horizontal Communicating,Variable Speed ECM, Ultra Low NOx, 35-in TallCondensing Gas Furnace