Installation, Start-up, Operating and
Service and Maintenance Instructions
NOTE:
Read the entire instruction manual before starting the installation.
Approved for installations up to 5,400 feet (1646 meters)
TABLE OF CONTENTS
Required Notice for Massachusetts Installations . . . . . . . . . . . . . . . . 2
SAFETY CONSIDERATIONS . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4
Table 1 – Minimum Clearances to Combustible Materials for All Units
INTRODUCTION . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 5
Table 2 – Loose Parts Bag . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 6
CODES AND STANDARDS. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 6
ELECTROSTATIC DISCHARGE (ESD) PRECAUTIONS PROCE
ACCESSORIES . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 7
LOCATION . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 7
VENTILATION . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 8
Table 3 – Minimum Free Area Required for Each Combustion Air
Opening or Duct to Outdoors. . . . . . . . . . . . . . . . . . . . . . . . . . . . 10
Table 4 – Minimum Space Volumes for 100% Combustion, Ventila
tion and Dilution Air from Outdoors . . . . . . . . . . . . . . . . . . . . . . 10
CONDENSATE TRAP. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 11
Condensate Drain Connection . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 11
Table 5 – Condensate Trap Configurations . . . . . . . . . . . . . . . . . 13
INSTALLATION . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 13
Table 6 – Evaporator Coil Spacer or Shield Requirements. . . . . 16
AIR DUCTS . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 20
Table 7 – Air Filter Selection and Duct Sizing - In. (mm) . . . . . 21
Table 8 – Opening Dimensions - In. (mm) . . . . . . . . . . . . . . . . . 21
Table 9 – Filter Media Pressure Drop (Clean) Versus Airflow - In.
W.C. (Pa) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 21
Table 10 – Filter Media Pressure Drop (Clean) Versus Face Velocity-
In. W.C. (Pa) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 22
Table 11 – Air Delivery - CFM (With Filter) . . . . . . . . . . . . . . . 22
GAS PIPING. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 23
Table 12 – Maximum Capacity of Pipe . . . . . . . . . . . . . . . . . . . . 24
ELECTRICAL CONNECTIONS. . . . . . . . . . . . . . . . . . . . . . . . . . . 25
Table 13 – Electrical Data . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 29
NOTES FOR THERMOSTATS. . . . . . . . . . . . . . . . . . . . . . . . . . . . 31
VENTING. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 31
Table 14 – Vent Termination Kit for Direct Vent (2-pipe) Systems32
Table 15 – Hanger Spacing . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 38
Notes for Venting Options . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 40
Table 16 – Approved Combustion-Air and Vent Pipe, Fitting and Ce
ment Materials (U.S.A. Installations) . . . . . . . . . . . . . . . . . . . . . 41
Table 17 – Maximum Allowable Exposed Vent Length in Uncondi
tioned Space - Ft. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 41
Table 18 – Maximum Equivalent Vent Length - Ft. . . . . . . . . . . 42
Table 19 – Deductions from Maximum Equivalent Vent Length - Ft.
START-UP, ADJUSTMENT, AND SAFETY CHECK . . . . . . . . . 48
Table 20 – Altitude Derate Multiplier for USA. . . . . . . . . . . . . . 50
Table 21 – Blower Off Delay Setup Switch . . . . . . . . . . . . . . . . 51
Table 22 – Gas Rate (CU ft./hr). . . . . . . . . . . . . . . . . . . . . . . . . . 52
Table 23 – Gas Valve Outlet Pressure for Gas Heat Values at Altitude
- 60,000 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 53
Table 24 – Gas Valve Outlet Pressure for Gas Heat Values at Altitude
- 80,000 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 53
Table 25 – Gas Valve Outlet Pressure for Gas Heat Values at Altitude
- 100,000 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 54
PROCEDURES . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 54
WINTERIZATION. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 61
SERVICE GUIDE . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 68
PARTS REPLACEMENT INFORMATION GUIDE . . . . . . . . . . . 69
Model Nomenclature . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 69
A200352
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
on the referenced subject, which is represented only by the standard in its entirety.
59CU5A
Single-Stage, Upflow/Horizontal Communicating,
Variable Speed ECM, Ultra Low NOx, 35-in Tall
Condensing Gas Furnace