Fedders FV95A090 - Manual (Page 2)

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Case 1: Furnace Located In An
Case 2: Furnace Located In A
Case 3: Furnace Located In A Confined Space,
Case 4: Furnace Located In A Confined Space,
Sequence of Operation if the Furnace
Circulating Air Blower and
FIELD SUPPLIED AND INSTALLED
Table of Contents
AIR CONDITIONING
INSPECTION/ACCESS PANEL
Vertical Termination of Combustion Air and
Horizontal Termination of Combustion Air and
Termination of Combustion Air and Ventilation
L.P
INTRODUCTION ....................................................................... 1
AFETY ..................................................................................... 1
afety Rules ................................................................... 1
ODES....................................................................................... 3
FURNACE SIZING ..................................................................... 4
................................................................. 4
................................................... 4
LOCATION OF UNIT ................................................................. 5
General ......................................................................... 5
Other Considerations:................................................... 5
CLEARANCES ........................................................................... 6
UNIT DIMENSIONS ................................................................... 6
DUCTWORK ............................................................................. 7
Guide: ........................................................................... 7
Ductwork Steps: ........................................................... 7
INSTALLATION POSITIONS ....................................................... 8
Inducer Blower Rotation ............................................. 9
Inducer Rotation Steps ............................................... 9
Non-Suspended Installation ......................................... 9
Suspended Installation ................................................. 9
Upflow Installation ...................................................... 10
Downflow Installation ................................................ 11
Horizontal Installation ................................................ 12
AIR FOR COMBUSTION .......................................................... 13
Unconfined Space .......................................... 13
Confined Space .............................................. 13
Outdoor Air From Attic Or Crawl Space ...... 13
Outdoor Air Ducted Horizontally.................. 13
FURNACE VENTING ................................................................ 14
Direct Venting Pipe Connection .................................. 14
Combustion Air Inlet Piping........................................ 14
Air Filters....................................................................... 15
Exhaust Vent Piping...................................................... 15
Guidelines...................................................................... 16
Joining Pipe And Fittings.............................................. 16
Calculating Piping Length............................................ 18
Pipe Using A Concentric Venting Kit.......................... 19
Exhaust Vent................................................................. 20
Exhaust Vent................................................................. 21
Non Direct Vent Furnace Installations......................... 22
Direct Vent Piping Termination................................... 17
CONDENSATE DRAINS............................................................. 25
Drain Hose Installation............... ................................... 25
Condensate Drain Installation....................................... 27
GAS SUPPLY ............................................................................. 28
Gas Piping ..................................................................... 28
Leak Testing ................................................................. 28
High Altitude ................................................................ 29
CONVERSIONS ......................................................................... 29
Natural to L.P. Gas ....................................................... 29
. to Natural Gas ........................................................ 29
Conversion Steps .......................................................... 29
HIGH ALTITUDE & AIRFLOW SPECIFICATION TABLES ........... 30
ELECTRICAL SPECIFICATIONS................................................... 32
Furnace Connection ..................................................... 32
Low Voltage Wiring ..................................................... 32
Thermostat ................................................................... 33
Thermostat Location..................................................... 33
Thermostat Heat Anticipator Setting ......................... 33
START UP PROCEDURES ......................................................... 34
To Start The Furnace: ................................................... 34
To Shut Down The Furnace: ......................................... 34
Sequence of Operation ............................................... 34
Does Not Light or Detect Flame ................................. 34
Setting The Manifold Gas Pressure ............................. 34
Checking Furnace Input ............................................... 34
Temperature Rise Check ............................................... 35
Temperature Rise Check ............................................... 35
AIR FLOW ................................................................................. 35
Calculating Airflow....................................................... 35
Adjusting Dip Switches................................................. 36
ADJUSTING BLOWER SPEEDS ................................................. 37
Cooling Mode ............................................................... 37
Heating Mode ............................................................... 37
How To Remove The Blower ....................................... 37
How To Install The Blower ........................................... 37
MAINTENANCE ....................................................................... 38
Air Filter......................................................................... 38
Lubrication ................................................................... 38
Vent Connector ............................................................. 38
Operating Tips ............................................................. 38
ANNUAL INSPECTION/SERVICE ............................................... 38
Heat Exchanger............................................................. 38
Burners ......................................................................... 38
Induced Blower ............................................................. 38
Circulating Fan ............................................................. 38
Electrical ....................................................................... 39
Furnace Operation ....................................................... 39
OPTIONAL ACCESSORIES ......................................................... 39
Electronic Air Cleaner ................................................... 39
Humidifier/ Electronic Air Cleaners ............................. 39
TROUBLESHOOTING ............................................................... 39
WIRING DIAGRAM .................................................................. 43