441 01 7201 00
6/14/2019
Installation Instructions
WFEU
ECM Blower Motor
80% Furnaces
SINGLE- STAGE
INDUCED- COMBUSTION
4- WAY MULTIPOISE FURNACE
SAFETY CONSIDERATIONS
2
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INTRODUCTION
2
. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
CODES AND STANDARDS
4
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SAFETY
4
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GENERAL INSTALLATION
4
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COMBUSTION AND VENTILATION AIR
4
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DUCT SYSTEMS
4
. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
ACOUSTICAL LINING AND FIBROUS GLASS DUCT 5
GAS PIPING AND GAS PIPE PRESSURE TESTING
5
. . .
ELECTRICAL CONNECTIONS
5
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VENTING
5
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ELECTROSTATIC DISCHARGE
(ESD) PRECAUTIONS PROCEDURE
5
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UPFLOW INSTALLATION
9
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DOWNFLOW INSTALLATION
10
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HORIZONTAL INSTALLATION
11
. . . . . . . . . . . . . . . . . .
AIR DUCTS
12
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GAS PIPING
15
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ELECTRICAL CONNECTIONS
18
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115- V WIRING
18
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J- BOX RELOCATION
18
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24- V WIRING
19
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ACCESSORIES
19
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VENTING
21
. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
MASONRY CHIMNEY REQUIREMENTS
21
. . . . . . . . . .
APPLIANCE APPLICATION REQUIREMENTS
22
. . . . .
ADDITIONAL VENTING REQUIREMENTS
24
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SIDEWALL VENTING
24
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START- UP, ADJUSTMENT, AND SAFETY CHECK
26
. . . . .
START- UP PROCEDURES
26
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ADJUSTMENTS
26
. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
CHECK SAFETY CONTROLS
28
. . . . . . . . . . . . . . . . . . .
SERVICE AND MAINTENANCE PROCEDURES
30
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INTRODUCTION
31
. . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
ELECTRICAL CONTROLS AND WIRING
31
. . . . . . . . .
CARE AND MAINTENANCE
32
. . . . . . . . . . . . . . . . . . . .
CLEANING AND/OR REPLACING AIR FILTER
32
. . . .
BLOWER MOTOR AND WHEEL
32
. . . . . . . . . . . . . . . . .
CLEANING HEAT EXCHANGER
33
. . . . . . . . . . . . . . . . .
SEQUENCE OF OPERATION
34
. . . . . . . . . . . . . . . . . . . .
FAULT CODE RECALL
35
. . . . . . . . . . . . . . . . . . . . . . . . .
CLEAR FAULT MEMORY
35
. . . . . . . . . . . . . . . . . . . . . . .
COMPONENT TEST
35
. . . . . . . . . . . . . . . . . . . . . . . . . . .
WIRING DIAGRAMS
35
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TROUBLESHOOTING
35
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PARTS REPLACEMENT INFORMATION GUIDE
38
. . . .
Approved for installations up to 2,000 feet (610 meters)
NOTE
: Read the entire instruction manual before starting the
installation.
Portions of the text and tables are reprinted from current edition
of NFPA 54/ANSI Z223.1
E
, 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.