Manuals
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Lennox International Inc
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Household Appliance
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Furnace
Lennox International Inc
DAVE LENNOX SIGNATURE COLLECTION GAS FURNACE, SL280DFV FIGURE Page
Models:
DAVE LENNOX SIGNATURE COLLECTION GAS FURNACE
SL280DFV
1
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60
60
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Troubleshooting
Install
Repair Parts List
SL280DFV Schematic Wiring Diagram
Dimension
Reconfigure the system. Replace control if heating
System Wiring
Integrated Control Diagnostic Modes
burner box assembly
Gas Pressure Adjustment
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Image 29
SL280DFV Schematic Wiring Diagram
FIGURE 23
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Page 29
Image 29
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Contents
INSTALLATION INSTRUCTIONS SL280DFV
Table of Contents
2P0611
P506710-01
FRONT VIEW
Unit Dimensions − inches mm
TOP VIEW
SIDE VIEW
Page
Parts Arrangement
SL280DFV Gas Furnace
Safety Information
Shipping and Packing List
DANGER
General
Use of Furnace as Construction Heater
Combustion, Dilution & Ventilation Air
Confined Space
EQUIPMENT IN CONFINED SPACE ALL AIR FROM OUTSIDE
Downflow Installation
Setting Equipment
Filters
VENT CONNECTION
Duct System
Venting
Page
General Venting Requirements
Page
Page
Serving a Single Category I Appliance
Serving Two or More Category I Appliances
TABLE Vent Connector Capacity
TABLE Common Vent Capacity
Serving Two or More Category I Appliances
Serving Two or More Category I Appliances
TABLE Vent Connector Capacity
TABLE Common Vent Capacity
Serving Two or More Category I Appliances
Gas Piping
Page
TABLE Gas Pipe Capacity − ft3/hr m3/hr
Electrical
Thermostat Selection
Generator Use − Voltage Requirements
Page
SYSTEM WIRING
120V CONNECTIONS
NOTE 24V UV LIGHT
Page
Page
Page
Page
FIGURE Page
SL280DFV Schematic Wiring Diagram
FIELD INSTALLED CLASS
TYPICAL SL280DFV FIELD WIRING DIAGRAM
FIELD INSTALLED LINE VOLTAGE
FIGURE Page
THERMOSTAT CONNECTIONS TB1
Integrated Control
RS−BUS LINK TB82, future use
RS−BUS OUTDOOR TB83
Heating Operation DIP Switch Settings
TABLE Cooling Mode Blower Speed Ramping
On−Board Links
HEATING
BLOWER DATA
COOLING
HEATING
HEATING
BLOWER DATA
COOLING
HEATING
Page
Page
Unit Start−Up
Proper Combustion
Gas Pressure Adjustment
TABLE Manifold Pressure Settings
High Altitude
TABLE High Altitude Pressure Switch Kits
TABLE Honeywell Gas Valve Conversion Kits
Heating Sequence of Operation
Other Unit Adjustments
HEATING OPERATION WITH TWO−STAGE THERMOSTAT
Service
burner box assembly
rollout switch
pressure switch
HEAT EXCHANGER REMOVAL
16− Reconnect all wires
Repair Parts List
Planned Service
Integrated Control Diagnostic Codes
Integrated Control Diagnostic Modes
Integrated Control Diagnostic Codes continued
Reconfigure the system. Replace control if heating
Integrated Control Diagnostic Codes continued
Code
Integrated Control Diagnostic Codes continued
to the pressure switch opening
Integrated Control Diagnostic Codes continued
Code
Integrated Control Diagnostic Codes continued
LSOM − Compressor open start circuit
Integrated Control Diagnostic Codes continued
Program Unit Capacity/Size Mode
PRESSURE SWITCH
Troubleshooting Heating Sequence of Operation
CLOSED WITHIN
SECONDS?
3 CALL FOR HEAT SATISFIED
CALL FOR SECOND−STAGE HEAT
FIRST−STAGE HEAT SECOND−STAGE HEAT
CALL FOR HEAT SATISFIED
2ND STAGE HEAT
1ST STAGE HEAT
CALL FOR COOLING
1GO TO CALL FOR 1ST STAGE HEAT
4GO TO CALL FOR COOLING
CALL FOR FAN
CALL FOR FAN
