Carrier 59MN7C - User Manual

Installation, Start-up, Operating and Service
and Maintenance Instructions
NOTE: Read the entire instruction manual before starting the
installation.
TABLE OF CONTENTS
REQUIRED NOTICE FOR MASSACHUSETTS INSTALLATIONS
IMPORTANT . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2
Table 1 – Dimensions . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3
SAFETY CONSIDERATIONS . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3
Table 2 – Minimum Clearances to Combustible Materials for All Units
5
INTRODUCTION . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 5
Table 3 – Loose Parts Bag . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 6
CODES AND STANDARDS. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 6
ELECTROSTATIC DISCHARGE (ESD) PRECAUTIONS PROCE-
DURE . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 7
ACCESSORIES . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 7
LOCATION . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 7
AIR FOR COMBUSTION AND VENTILATION . . . . . . . . . . . . . . 8
Table 4 – Minimum Free Area Required for Each Combustion Air
Opening or Duct to Outdoors. . . . . . . . . . . . . . . . . . . . . . . . . . . . . 9
Table 5 – Minimum Space Volumes for 100% Combustion, Ventila-
tion and Dilution Air from Outdoors . . . . . . . . . . . . . . . . . . . . . . . 9
CONDENSATE TRAP. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 10
CONDENSATE DRAIN CONNECTION . . . . . . . . . . . . . . . . . . . . 12
INSTALLATION . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 14
Table 6 – Opening Dimensions - In. (mm) . . . . . . . . . . . . . . . . . 17
FILTER ARRANGEMENT . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 18
Table 7 – Filter Information. . . . . . . . . . . . . . . . . . . . . . . . . . . . . 19
AIR DUCTS . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 21
GAS PIPING. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 21
Table 8 – Maximum Capacity of Pipe . . . . . . . . . . . . . . . . . . . . . 22
ELECTRICAL CONNECTIONS. . . . . . . . . . . . . . . . . . . . . . . . . . . 23
Table 9 – Electrical Data . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 24
115-V WIRING . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 24
24-V WIRING . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 26
TEMPERATURE SENSORS. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 26
ACCESSORIES (See Fig. 38 and Fig. 37.) . . . . . . . . . . . . . . . . . . . 26
VENTING. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 27
Table 10 – Vent Termination Kit for
Direct Vent (2-pipe) Systems. . . . . . . . . . . . . . . . . . . . . . . . . . . . 28
Table 11 – Approved Combustion-Air and Vent Pipe,
Fitting and Cement Materials. . . . . . . . . . . . . . . . . . . . . . . . . . . . 28
Table 12 – Maximum Equivalent Vent Length - Ft. . . . . . . . . . . 37
Table 13 – Deductions from Maximum Equivalent Vent
Length-Ft.(M) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 38
Table 14 – Maximum Allowable Exposed Vent Length in Uncondi-
tioned Space - Ft./M. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 41
Table 15 – Hanger Spacing . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 43
Table 16 – Air Delivery - CFM (with filter) . . . . . . . . . . . . . . . . 45
FURNACE CONTROL PROGRAMMING
AND NAVIGATION . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 46
Table 17 – System Status Display Codes . . . . . . . . . . . . . . . . . . 46
Table 18 – Main Menu Options. . . . . . . . . . . . . . . . . . . . . . . . . . 47
SERVICE LABEL . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 49
START-UP, ADJUSTMENT, AND SAFETY CHECK . . . . . . . . . 49
Table 19 – Test Sequence . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 50
WIRING DIAGRAM . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 50
Table 20 – Altitude Derate Multiplier for U.S.A.* . . . . . . . . . . . 52
Table 21 – Gas Rate (CU ft./hr). . . . . . . . . . . . . . . . . . . . . . . . . . 54
Table 22 – Orifice Size and Manifold Pressure (in. w.c.) for Gas Input
Rate . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 55
Table 23 – Orifice Size and Manifold Pressure (in. w.c.) for Gas Input
Rate . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 55
SERVICE AND MAINTENANCE PROCEDURES. . . . . . . . . . . . 57
ELECTRICAL CONTROLS AND WIRING . . . . . . . . . . . . . . . . . 57
CARE AND MAINTENANCE . . . . . . . . . . . . . . . . . . . . . . . . . . . . 58
WINTERIZATION. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 63
SEQUENCE OF OPERATION . . . . . . . . . . . . . . . . . . . . . . . . . . . . 63
TROUBLESHOOTING . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 68
PARTS REPLACEMENT INFORMATION GUIDE . . . . . . . . . . . 71
MODEL NOMENCLATURE . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 71
TRAINING. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 71
To learn more about this appliance and installation via a mobile device,
go to https://carrier.hvacpartners.com/NFC or use the QR code below. To
access airflow tables or troubleshooting guide on your mobile device go
to mlctraining.com/training/techdocs/104/ or use the QR code below.
A230294
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.
59MN7C
Modulating, High Efficiency Condensing Gas
Furnace, 4-Way Multipoise

Carrier 59MN7C Specifications