Carrier A Series User Manual

Installation, Start-up, Operating and
Service and Maintenance Instructions
SAFETY CONSIDERATIONS . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3
INTRODUCTION . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4
CODES AND STANDARDS . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4
ELECTROSTATIC DISCHARGE (ESD) PRECAUTIONS PROCE-
DURE. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 5
LOCATION . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 6
GENERAL . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 6
AIR FOR COMBUSTION AND VENTILATION . . . . . . . . . . . . 6
Table 1 – Minimum Free Area Required for Each Combustion Air
opening of Duct to Outdoors . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 7
Table 2 – Minimum Space Volumes for 100% Combustion, Ventila-
tion, and Dilution from Indoors . . . . . . . . . . . . . . . . . . . . . . . . . . . 8
INSTALLATION . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 9
UPFLOW INSTALLATION . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 9
DOWNFLOW INSTALLATION . . . . . . . . . . . . . . . . . . . . . . . . . 9
Table 3 – Opening Dimensions - In. (mm) . . . . . . . . . . . . . . . . . 10
HORIZONTAL INSTALLATION . . . . . . . . . . . . . . . . . . . . . . . 10
LOCATION RELATIVE TO COOLING EQUIPMENT . . . . . . 11
AIR DUCTS . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 12
GENERAL REQUIREMENTS . . . . . . . . . . . . . . . . . . . . . . . . . . 12
SUPPLY AIR CONNECTIONS . . . . . . . . . . . . . . . . . . . . . . . . . 12
RETURN AIR CONNECTIONS. . . . . . . . . . . . . . . . . . . . . . . . . 12
Table 4 – Air Delivery - CFM (With Filter)* . . . . . . . . . . . . . . . 13
GAS PIPING. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 19
Table 5 – Maximum Capacity of Pipe . . . . . . . . . . . . . . . . . . . . . 19
ELECTRICAL CONNECTIONS. . . . . . . . . . . . . . . . . . . . . . . . . . . 20
Table 6 – Electrical Data . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 21
J-BOX RELOCATION . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 21
NOTES FOR FIGURES 28 - FIGURES 35: . . . . . . . . . . . . . . . . . . 24
ACCESSORIES . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 25
VENTING. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 25
GENERAL VENTING REQUIREMENTS . . . . . . . . . . . . . . . . 25
Table 7 – Combined Appliance Maximum Input Rating
in Thousands of Btuh per Hour . . . . . . . . . . . . . . . . . . . . . . . . . . 27
Table 8 – Minimum Allowable Input Rating of
Space-Heating Appliance in Thousands of Btuh per Hour . . . . . 27
START-UP, ADJUSTMENT, AND SAFETY CHECK . . . . . . . . . 31
GENERAL . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 31
START-UP PROCEDURES . . . . . . . . . . . . . . . . . . . . . . . . . . . . 31
ADJUSTMENTS . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 32
Table 9 – Altitude Derate Multiplier for U.S.A. . . . . . . . . . . . . . 32
Table 10 – Blower Off Delay Setup Switch . . . . . . . . . . . . . . . . 34
Table 11 – Gas Rate (CU ft./hr). . . . . . . . . . . . . . . . . . . . . . . . . . 34
Table 12 – Orifice Size and Manifold Pressure (In. W.C.) for Gas Input
Rate (Tabulated Data Based on 22,000 Btuh High-Heat/14,500 Btuh
for Low-Heat per Burner, Derated 4 Percent for Each 1000 Ft.(305 M)
Above Sea Level). . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 35
SERVICE AND MAINTENANCE
PROCEDURES . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 38
GENERAL. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 38
CARE AND MAINTENANCE. . . . . . . . . . . . . . . . . . . . . . . . . . 39
Table 13 – Filter Size Information - In. (mm) . . . . . . . . . . . . . . . 40
SEQUENCE OF OPERATION . . . . . . . . . . . . . . . . . . . . . . . . . . . . 42
WIRING DIAGRAM . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 46
TROUBLESHOOTING GUIDE . . . . . . . . . . . . . . . . . . . . . . . . . . . 47
PARTS REPLACEMENT INFORMATION GUIDE . . . . . . . . . . . 49
CASING GROUP . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 49
ELECTRICAL GROUP . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 49
BLOWER GROUP . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 49
GAS CONTROL GROUP . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 49
HEAT EXCHANGER GROUP. . . . . . . . . . . . . . . . . . . . . . . . . . 49
INDUCER GROUP . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 49
NOTE: Read the entire instruction manual before starting the
installation.
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.
PG80VTLA
Variable-Speed, ECM
Induced-Combustion, 2-Stage
4-Way Multipoise, Non-Condensing Gas Furnace
Series A
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.
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Carrier A Series Specifications

General

Brand	Carrier
Model	A Series
Category	Controller
Language	English