1
922SA
SINGLE--STAGE, 4--WAY MULTIPOISE
CONDENSING GAS FURNACE
SERIES A
Installation, Start---up, Operating and
Service and Maintenance Instructions
NOTE
: Read the entire instruction manual before starting the installation.
SECTIONS
SAFETY CONSIDERATIONS
3
. . . . . . . . . . . . . . . . . . . . . . . . .
INTRODUCTION
4
. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
CODES AND STANDARDS
4
. . . . . . . . . . . . . . . . . . . . . . . . . . .
ELECTROSTATIC DISCHARGE (ESD) PRECAUTIONS
5
. . .
ACCESSORIES
5
. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
LOCATION
8
. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
AIR FOR COMBUSTION AND VENTILATION
9
. . . . . . . . . .
CONDENSATE TRAP
12
. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
CONDENSATE DRAIN
16
. . . . . . . . . . . . . . . . . . . . . . . . . . . . .
INSTALLATION
20
. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
AIR DUCTS
30
. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
GAS PIPING
32
. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
ELECTRICAL CONNECTIONS
33
. . . . . . . . . . . . . . . . . . . . . . .
VENTING
40
. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
START--UP, ADJUSTMENT, AND SAFETY CHECK
64
. . . . . .
SERVICE AND MAINTENANCE PROCEDURES
73
. . . . . . . .
SEQUENCE OF OPERATION
81
. . . . . . . . . . . . . . . . . . . . . . . .
PARTS REPLACEMENT GUIDE
86
. . . . . . . . . . . . . . . . . . . . . .
CERTIFIED
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 current edition of
NFPA 54/ANSI Z223.1, 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.
TABLES
Loose Parts Bag
5
. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Minimum Clearances to Combustible Materials
5
. . . . . . . . . . . . .
Minimum Free Area Required
11
. . . . . . . . . . . . . . . . . . . . . . . . .
Minimum Space Volumes
11
. . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Filter Size Information
23
. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Opening Dimensions
26
. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Air Delivery CFM
31
. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Maximum Capacity of Pipe
33
. . . . . . . . . . . . . . . . . . . . . . . . . . .
Electrical Data
36
. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Vent Termination Kit for Direct Vent (2--Pipe) System
42
. . . . . . .
Hangar Spacing
46
. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Combustion--Air Vent Pipe, Fitting & Cement Material..
48
. . . . .
Maximum Allowable Exposed Vent Lengths Insulation
49
. . . . . .
Maximum Equivalent Vent Length
50
. . . . . . . . . . . . . . . . . . . . . .
Deductions from Maximum Equivalent Vent Length
50
. . . . . . . .
Blower Off Delay Setup Switch
67
. . . . . . . . . . . . . . . . . . . . . . . .
Altitude Derate Multiplier for U.S.A.
68
. . . . . . . . . . . . . . . . . . . .
Gas Rate
70
. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Orifice Size and Manifold Pressure
71
. . . . . . . . . . . . . . . . . . . . .
