Instruction manual

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XII. Gas Supply and Piping ........................................................................................................................................... 25
GENERAL ........................................................................................................................................................................................................... 25
High Altitude Derate .................................................................................................................................................................................... 25
Propane Gas Conversion ............................................................................................................................................................................ 27
Gas Valve .................................................................................................................................................................................................... 27
GAS PIPING CONNECTIONS ............................................................................................................................................................................ 27
General ........................................................................................................................................................................................................ 27
Direct/Standard Inlet Piping ........................................................................................................................................................................ 28
Indirect/Alternate Inlet Piping ...................................................................................................................................................................... 28
Gas Piping Checks ...................................................................................................................................................................................... 28
Propane Gas Tanks and Piping .................................................................................................................................................................. 28
PROPANE GAS PIPING CHARTS ..................................................................................................................................................................... 29
XIII. Circulating Air and Filters ..................................................................................................................................... 30
DUCTWORK - AIR FLOW .................................................................................................................................................................................. 30
FILTERS - READ THIS SECTION BEFORE INSTALLING THE RETURN AIR DUCTWORK .......................................................................... 30
UPRIGHT INSTALLATIONS ................................................................................................................................................................................ 30
HORIZONTAL INSTALLATIONS ......................................................................................................................................................................... 31
XIV. Startup Procedure and Adjustment ..................................................................................................................... 31
HEAT ANTICIPATOR SETTING.......................................................................................................................................................................... 31
DRAIN TRAP PRIMING ...................................................................................................................................................................................... 31
FURNACE OPERATION ..................................................................................................................................................................................... 31
Furnace Startup........................................................................................................................................................................................... 31
Furnace Shutdown ...................................................................................................................................................................................... 31
GAS SUPPLY PRESSURE MEASUREMENT .................................................................................................................................................... 31
GAS MANIFOLD PRESSURE MEASUREMENT AND ADJUSTMENT ............................................................................................................. 32
GAS INPUT RATE MEASUREMENT (NATURAL GAS ONLY) .......................................................................................................................... 32
TEMPERATURE RISE ........................................................................................................................................................................................ 34
CIRCULATOR BLOWER SPEEDS ..................................................................................................................................................................... 34
BLOWER HEAT OFF DELAY TIMINGS ............................................................................................................................................................. 35
XV. Normal Sequence of Operation ............................................................................................................................. 35
POWER UP ......................................................................................................................................................................................................... 35
HEATING MODE ................................................................................................................................................................................................. 35
COOLING MODE ................................................................................................................................................................................................ 35
FAN ONLY MODE ............................................................................................................................................................................................... 36
XVI. Operational Checks ............................................................................................................................................... 36
BURNER FLAME ................................................................................................................................................................................................ 36
PRIMARY LIMIT .................................................................................................................................................................................................. 36
XVII. Safety Circuit Description.................................................................................................................................... 36
GENERAL ........................................................................................................................................................................................................... 36
INTEGRATED CONTROL MODULE .................................................................................................................................................................. 36
PRIMARY LIMIT .................................................................................................................................................................................................. 36
AUXILIARY LIMIT ................................................................................................................................................................................................ 37
ROLLOUT LIMIT ................................................................................................................................................................................................. 37
PRESSURE SWITCHES .................................................................................................................................................................................... 37
FLAME SENSOR ................................................................................................................................................................................................ 37
XVIII. Troubleshooting................................................................................................................................................... 37
ELECTROSTATIC DISCHARGE (ESD) PRECAUTIONS .................................................................................................................................. 37
DIAGNOSTIC CHART......................................................................................................................................................................................... 37
RESETTING FROM LOCKOUT.......................................................................................................................................................................... 37
XIX. Maintenance ........................................................................................................................................................... 37
ANNUAL INSPECTION ....................................................................................................................................................................................... 40
FILTERS .............................................................................................................................................................................................................. 40
Maintenance ................................................................................................................................................................................................ 40
Filter Removal ............................................................................................................................................................................................. 40
UPRIGHT UPFLOW FILTER REMOVAL ................................................................................................................................................ 40
MEDIA AIR FILTER OR ELECTRONIC AIR CLEANER REMOVAL ...................................................................................................... 40
UPRIGHT COUNTERFLOW FILTER REMOVAL ................................................................................................................................... 41
HORIZONTAL UNIT FILTER REMOVAL ................................................................................................................................................ 41
BURNERS ........................................................................................................................................................................................................... 41
INDUCED DRAFT AND CIRCULATOR BLOWERS ........................................................................................................................................... 41
CONDENSATE TRAP AND DRAIN SYSTEM (QUALIFIED SERVICER ONLY) ............................................................................................... 41
FLAME SENSOR (QUALIFIED SERVICER ONLY) ........................................................................................................................................... 41
FLUE PASSAGES (QUALIFIED SERVICER ONLY) .......................................................................................................................................... 41
XX. Before Leaving an Installation .............................................................................................................................. 42
XXI. Repair and Replacement Parts ............................................................................................................................ 42
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