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Table of Contents
XIV. Startup Procedure & Adjustment ............................................................................................................................. 26
HEAT ANTICIPATOR SETTING ................................................................................................................................ 26
DRAIN TRAP PRIMING ....................................................................................................................................... 26
FURNACE OPERATION ......................................................................................................................................... 26
GAS SUPPLY PRESSURE MEASUREMENT .............................................................................................................. 27
GAS MANIFOLD PRESSURE MEASUREMENT AND ADJUSTMENT .................................................................................. 28
GAS INPUT RATE MEASUREMENT (NATURAL GAS ONLY) ......................................................................................... 29
TEMPERATURE RISE ......................................................................................................................................... 29
CIRCULATOR BLOWER SPEEDS ........................................................................................................................... 29
XV. Normal Sequence of Operation ................................................................................................................................ 30
POWER UP .....................................................................................................................................................
HEATING MODE ...............................................................................................................................................
COOLING MODE ..............................................................................................................................................
FAN ONLY MODE .............................................................................................................................................
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XVI. Operational Checks .................................................................................................................................................. 30
BURNER FLAME ............................................................................................................................................... 30
PRIMARY LIMIT ................................................................................................................................................ 30
XVII. Safety Circuit Description ....................................................................................................................................... 31
GENERAL ....................................................................................................................................................... 31
INTEGRATED CONTROL MODULE .......................................................................................................................... 31
PRIMARY LIMIT ................................................................................................................................................ 31
AUXILIARY LIMIT ............................................................................................................................................... 31
ROLLOUT LIMIT ................................................................................................................................................ 31
PRESSURE SWITCHES ........................................................................................................................................ 31
FLAME SENSOR ............................................................................................................................................... 31
XVIII. Troubleshooting ...................................................................................................................................................... 31
ELECTROSTATIC DISCHARGE (ESD) PRECAUTIONS ................................................................................................. 31
DIAGNOSTIC CHART .......................................................................................................................................... 31
RESETTING FROM LOCKOUT ............................................................................................................................... 31
XIX. Maintenance ............................................................................................................................................................. 32
ANNUAL INSPECTION .......................................................................................................................................... 32
FILTERS .......................................................................................................................................................... 32
BURNERS ....................................................................................................................................................... 32
INDUCED DRAFT AND CIRCULATOR BLOWERS ......................................................................................................... 32
CONDENSATE TRAP AND DRAIN SYSTEM (QUALIFIED SERVICER ONLY) ...................................................................... 32
FLAME SENSOR (QUALIFIED SERVICER ONLY) ...................................................................................................... 32
FLUE PASSAGES (QUALIFIED SERVICER ONLY) ..................................................................................................... 32
XX. Internal Filter Removal ............................................................................................................................................. 33
XXI. Before Leaving an Installation ................................................................................................................................ 33
XXII. Repair & Replacement Parts .................................................................................................................................. 33
AMS95 Wiring Diagram .................................................................................................................................................... 36
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