Lennox International Inc SL280UH090V36B, SL280UH090V48B, SL280UH070V36A installation instructions

Models: SL280UH090V36B SL280UH070V36A DAVE LENNOX SIGNATURE COLLECTION GAS FURNACE UPFLOW / HORIZONTAL AIR DISCHARGE SL280UH090V48B

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TABLE 11

SL280 Field Wiring Applications With Conventional Thermostat (Continued)

 

DIP Switch Settings and On−Board Links (See figure 34)

 

 

 

 

DIP Switch 1

On Board Links Must Be Cut To Select

 

 

 

Thermostat

Thermostat

 

Wiring Connections

System Options

 

 

Heating

 

 

 

 

 

 

 

 

 

Stages

 

 

 

 

2 Heat / 2 Cool

OFF

 

S1

FURNACE

OUTDOOR

 

 

CUT ON−BOARD LINK

T’STAT

TERM. STRIP

UNIT

 

 

 

 

 

 

 

W915

 

 

 

 

 

2 STAGE

 

 

 

 

 

COMPR

 

 

 

 

 

 

 

 

*

2 Heat / 2 Cool

OFF

S1

FURNACE

OUTDOOR

with t’stat with

CUT ON−BOARD LINK

T’STAT

TERM. STRIP

UNIT

humidity control

W915

 

 

 

2 STAGE

 

 

 

 

 

 

 

 

COMPR

 

 

 

 

 

 

 

 

*

 

 

CUT ON−BOARD LINK

 

 

 

 

 

W914

 

 

 

 

 

DEHUM

 

 

 

 

 

OR

 

 

 

 

 

HARMONY

 

 

 

 

 

 

o

 

 

2 Heat / 1 Cool

OFF

S1

FURNACE

 

OUTDOOR

with t’stat with

 

T’STAT

TERM. STRIP

UNIT

humidity control

 

 

 

 

 

 

 

CUT ON−BOARD LINK

 

 

*

 

 

W914

 

 

 

 

DEHUM

 

 

 

 

 

OR

 

 

 

 

 

HARMONY

 

 

 

 

 

 

o

 

 

2 Heat / 1 Cool

OFF

S1

FURNACE

OUTDOOR

 

 

T’STAT

TERM. STRIP

 

UNIT

DO NOT CUT ANY

ON−BOARD LINKS

*

* Not required on all units.

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Lennox International Inc SL280UH090V36B, SL280UH090V48B, SL280UH070V36A installation instructions