Whirlpool WGFD295 Instruction Manual download pdf (Page 2)

TABLE OF CONTENTS

GAS FURNACE SAFETY PRECAUTIONS....................................3

PRODUCT DESCRIPTION AND APPLICATION ..........................4

Shipping Inspection .....................................................................4

Electrostatic Discharge (ESD)......................................................4

To The Installer.............................................................................4

Important Note to the Owner Regarding Product Warranty .......4

Product Application......................................................................5

LOCATION REQUIREMENTS AND CONSIDERATIONS ............5

Clearances and Accessibility.......................................................6

Furnace Suspension ....................................................................7

Existing Furnace Removal ...........................................................7

Thermostat Location ....................................................................7

Combustion and Ventilation Air Requirements ...........................8

HORIZONTAL APPLICATIONS AND CONSIDERATIONS..........8

Drain Trap and Lines....................................................................8

Leveling ........................................................................................8

Alternate Vent/Flue Connections .................................................8

Alternate Electrical and Gas Line Connections ...........................9

Drain Pan......................................................................................9

Freeze Protection .........................................................................9

Furnace Suspension ....................................................................9

PROPANE GAS/HIGH ALTITUDE INSTALLATIONS...................9

VENT/FLUE PIPE AND COMBUSTION AIR PIPE......................10

Dual Certification: Nondirect/Direct Vent...................................10

Materials and Joining Methods..................................................10

Proper Vent/Flue and Combustion Air Piping Practices ...........10

Termination Locations................................................................11

Canadian Venting Requirements ...............................................11

Standard Furnace Connections.................................................11

Vent/Flue Pipe............................................................................12

Combustion Air Pipe—Direct Vent Installations ........................12

Combustion Air Pipe—Nondirect Vent Installations..................12

Alternate Furnace Connections .................................................12

Alternate Vent/Flue Location......................................................13

Alternate Combustion Air Intake Location.................................14

Nondirect Vent (Single Pipe) Piping...........................................14

Nondirect Vent Applications ......................................................15

Vent/Flue Pipe Terminations......................................................15

Direct Vent (Dual Pipe) Piping....................................................16

Vent/Flue and Combustion Air Pipe Lengths and Diameters....16

Vent/Intake Terminations for Installation

of Multiple Direct Vent Furnaces................................................19

Concentric Vent Termination .....................................................19

Side Wall Vent Kit.......................................................................19

CONDENSATE DRAIN LINES AND DRAIN TRAP.....................19

Standard Right or Left Side Drain Hose Connections...............20

Upright Installations—Trap on Right Side .................................20

Upright Installations—Trap on Left Side....................................21

Upright Drain Trap Mounting—Left or Right Side Panel...........21

Horizontal Installations—Right Side Down................................21

Horizontal Installations—Left Side Down ..................................22

Horizontal Drain Trap Mounting—Left or Right Side Panel.......23

ELECTRICAL CONNECTIONS....................................................23

Wiring Harness...........................................................................23

115-Volt Line Connections.........................................................23

Junction Box Relocation............................................................23

24-Volt Thermostat Wiring .........................................................24

24-Volt Dehumidistat Wiring ......................................................25

Fossil Fuel Applications .............................................................25

115-Volt Line Connection of Accessories

(Humidifier and Electronic Air Cleaner) ......................................25

GAS SUPPLY AND PIPING..........................................................26

High Altitude Derate ...................................................................26

Propane Gas Conversion...........................................................26

Gas Control Valve.......................................................................27

Gas Piping Connections ............................................................27

Gas Piping Checks.....................................................................29

Propane Gas Tanks and Piping .................................................29

CIRCULATING AIR AND FILTERS..............................................31

Ductwork—Airflow .....................................................................31

Bottom Return Air Opening—Upflow Models ...........................31

Filters—Read This Section Before Installing

the Return Air Ductwork.............................................................31

START-UP PROCEDURE AND ADJUSTMENT .........................33

Heat Anticipator Setting.............................................................33

Drain Trap Priming......................................................................33

Furnace Operation......................................................................33

Furnace Start-Up........................................................................33

Furnace Shutdown.....................................................................33

Gas Supply Pressure Measurement ..........................................33

Gas Manifold Pressure Measurement and Adjustment.............34

Gas Input Rate Measurement—Natural Gas Only.....................35

Temperature Rise.......................................................................35

Circulator Blower Speeds ..........................................................36

Blower Heat Off Delay Timings ..................................................38

NORMAL SEQUENCE OF OPERATION.....................................38

Power Up....................................................................................38

Heating Mode.............................................................................38

Cooling Mode.............................................................................39

Fan Only Mode...........................................................................39

Operational Checks....................................................................39

SAFETY CIRCUIT DESCRIPTION...............................................39

General .......................................................................................39

Integrated Control Module .........................................................39

Primary Limit Control..................................................................39

Auxiliary Limit Controls...............................................................39

Rollout Limit Controls.................................................................39

Pressure Switches......................................................................40

Flame Sensor..............................................................................40

MAINTENANCE ............................................................................40

Annual Inspection.......................................................................40

Filters ..........................................................................................40

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

Before Leaving an Installation....................................................41

Repair and Replacement Parts..................................................41

TROUBLESHOOTING ..................................................................42

Electrostatic Discharge (ESD) ....................................................42

Fault Recall.................................................................................42

Resetting from Lockout..............................................................42

Status Codes..............................................................................42

Diagnostic Chart.........................................................................43

DIP Switch Chart........................................................................49

WIRING DIAGRAMS.....................................................................50

ASSISTANCE OR SERVICE.........................................................52

1 2 3 4 5 6 7 ... 51 52

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Whirlpool WGFD295 Instruction Manual Page 2

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