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AIRFLOW WARNING: Neverstoreanythingon,near,orincontact with the furnace, such as: 1. Spray or aerosol cans, rags, brooms, dust mops, vacuum cleaners, or other cleaning tools. 2. Soap powders, bleaches, waxes or other cleaning UPFLOW compounds, plastic or plastic containers, gasoline, kerosene,cigarettelighterfluid,drycleaningfluids,or other volatile fluids. 3. Paint thinners and other painting compounds, paper bags, or other paper products. Failure to follow this warning can cause corrosion of t
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WASHABLE
FILTER FILTER
RETAINER WASHABLE
FILTER FILTER
FILTER
RETAINER SUPPORT A93046 A93045 Fig. 3—Bottom Filter Arrangement Fig. 4—Filter Installed for Side Inlet 8. Recapture filter retainer wire. a. Markblowerwheellocationonshaftbeforedisassembly to ensure proper reassembly. 9. Replace blower access panel and main furnace door. b. Loosen setscrew holding blower wheel on motor shaft. 10. Turn on electrical supply to furnace. NOTE: Markblowermountingarmsandblowerhousingsoeach NOTE: Ifthef
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INSTALLATION LEVEL (0") LEVEL (0") TO TO This appliance requires a special venting system. Refer to the 1/2" MAX 1/2" MAX installation instructions for parts list and method of installation. Furnace must be installed level, or pitched forward within 1/2 inch of level for proper drainage. Failure will result in equipment or property damage. See Installation Manual for IMPORTANT unit FRONT FRONT UPFLOW OR support details on horizontal applications. DOWNFLOW HORIZONTAL Furnace is shipped from facto
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HOT SURFACE EAC-ELECTRONIC AIR IGNITOR CONNECTOR CLEANER TERMINALS (115-VAC 1 AMP MAX) 115-V CONNECTORS PRESSURE SWITCH CONNECTOR HUM-HUMIDIFIER MAIN BLOWER TERMINAL CONTROL WIRE (24-VAC 0.5 AMP MAX) CONNECTOR 24-V THERMOSTAT TERMINALS DEHUMIDIFY ENABLE (DE) (WHEN PROVIDED) TRANSFORMER 24-V CONNECTORS DEHUMIDIFIER (DEHUM) CONNECTOR 3-AMP FUSE STATUS AND DIAGNOSTIC LED LIGHTS AIR CONDITIONING (A/C) SETUP SWITCH CONTINUOUS FAN (CF) SETUP SETUP SWITCHES SWITCHES (SW) AND BLOWER OFF DELAY SETUP SWI
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(1.) Release blower access panel door switch and turn setup switch SW-6 to OFF position. (2.) Replace blower access panel. (3.) Operate furnace through 1 heat cycle to check for proper operation and check LED status. (4.) If furnace is operating properly and LEDs indicate proper operation, replace main furnace door. IX. CHECKING HEAT TAPE OPERATION (IF APPLICABLE) 32°F MINIMUM INSTALLED
AMBIENT OR FREEZE
In applications where the ambient temperature around the furnace PROTECTION REQUIRED is 32
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—12— SERVICE LED CODE STATUS RED LED1 ON Furnace is operating in emergency heat. RED LED2 ON The microprocessor has malfunctioned. To reset: Put setup switch "SW-1" in the "ON" position and jumper thermostat terminals "R", "W/W1", and "Y/Y2" simultaneously with the door switch pushed in and power to the unit "ON". Disconnect jumper and place setup switch in the "OFF" position. If LED2 reappears replace main control board. YELLOW LED3 ON Furnace is operating in high heat. GREEN LED4 ON Furnace is
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FUSE 1 2 3 1 2 3 OFF OFF 1 2 3 45 6 7 8 OFF SETUP SW,(SW1-8) —13— 34 IGNITION PROVING FAULT - Control will try three more times before a lockout #14 occurs. Check for: - Gas valve turned "OFF". - Oxide buildup on flame sensor (clean with fine sandpaper.) - Main shutoff valve turned "OFF". - Green wire MUST be connected to furnace sheet metal. - Proper flame sense microamps (.5 microamps D.C. minimum) - Inadequate flame carryover or rough ignition. - Low inlet gas pressure 41 BLOWER OUTSIDE VALID
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SERVICE TRAINING Packaged Service Training programs are an excellent way to increase your knowledge of the equipment discussed in this manual, including:
• Unit Familiarization • Maintenance
• Installation Overview • Operating Sequence
A large selection of product, theory, and skills programs is available, using popular video-based formats and materials. All include video and/or slides, plus companion book.
Classroom Service Training plus "hands-on" the products in our labs can mean
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©1998 Bryant Heating & Cooling Systems 7310 W. Morris St. Indianapolis, IN 46231 Printed in U.S.A. sp0539 Catalog No. 5335-505 —16—
