International Comfort Product WFEU Series, Installation Instructions Manual

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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 . . . . . . . . . . . . . . . . . . . . . . . .
INTRODUCTION 2 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
CODES AND STANDARDS 4 . . . . . . . . . . . . . . . . . . . . . . .
SAFETY 4 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
GENERAL INSTALLATION 4 . . . . . . . . . . . . . . . . . . . . . .
COMBUSTION AND VENTILATION AIR 4 . . . . . . . . . . .
DUCT SYSTEMS 4 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
ACOUSTICAL LINING AND FIBROUS GLASS DUCT 5
GAS PIPING AND GAS PIPE PRESSURE TESTING
5 . . .
ELECTRICAL CONNECTIONS 5 . . . . . . . . . . . . . . . . . . .
VENTING 5 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
ELECTROSTATIC DISCHARGE
(ESD) PRECAUTIONS PROCEDURE 5 . . . . . . . . . . . . . . .
UPFLOW INSTALLATION 9 . . . . . . . . . . . . . . . . . . . . . . .
DOWNFLOW INSTALLATION 10 . . . . . . . . . . . . . . . . . . .
HORIZONTAL INSTALLATION 11 . . . . . . . . . . . . . . . . . .
AIR DUCTS 12 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
GAS PIPING 15 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
ELECTRICAL CONNECTIONS 18 . . . . . . . . . . . . . . . . . .
115- V WIRING 18 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
J- BOX RELOCATION 18 . . . . . . . . . . . . . . . . . . . . . . . . . .
24- V WIRING 19 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
ACCESSORIES 19 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
VENTING 21 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
MASONRY CHIMNEY REQUIREMENTS 21 . . . . . . . . . .
APPLIANCE APPLICATION REQUIREMENTS 22 . . . . .
ADDITIONAL VENTING REQUIREMENTS 24 . . . . . . . .
SIDEWALL VENTING 24 . . . . . . . . . . . . . . . . . . . . . . . . . .
START- UP, ADJUSTMENT, AND SAFETY CHECK 26 . . . . .
START- UP PROCEDURES 26 . . . . . . . . . . . . . . . . . . . . . .
ADJUSTMENTS 26 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
CHECK SAFETY CONTROLS 28 . . . . . . . . . . . . . . . . . . .
SERVICE AND MAINTENANCE PROCEDURES 30 . . . . . . .
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 . . . . . . . . . . . . . . . . . . . . . . . . . . .
TROUBLESHOOTING 35 . . . . . . . . . . . . . . . . . . . . . . . . . .
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.