Lennox International Inc SL280UH070V36A, SL280UH090V48B, SL280UH090V36B 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

 

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

 

 

 

 

1 Heat / 1 Cool

ON

 

S1

FURNACE

OUTDOOR

NOTE − Use DIP

 

 

T’STAT

TERM. STRIP

UNIT

 

 

 

 

 

switch 2 to set

 

 

 

 

 

second−stage

 

 

 

 

 

heat ON delay.

 

DO NOT CUT ANY

 

 

 

OFF−7 minutes.

 

ON−BOARD LINKS

 

 

*

 

 

 

 

ON−12 minutes.

 

 

 

 

 

1 Heat / 2 Cool

ON

S1

FURNACE

OUTDOOR

NOTE − Use DIP

 

T’STAT

TERM. STRIP

UNIT

 

 

 

 

switch 2 to set

 

 

 

 

second−stage

 

 

 

 

heat ON delay.

 

CUT ON−BOARD LINK

 

*

OFF−7 minutes.

 

W915

 

 

2 STAGE

 

ON−12 minutes.

 

 

 

 

COMPR

 

 

1 Heat / 2 Cool

ON

CUT ON−BOARD LINK

S1

FURNACE

OUTDOOR

with t’stat with

 

T’STAT

TERM. STRIP

UNIT

 

W915

humidity control

 

2 STAGE

 

 

 

 

COMPR

 

 

 

 

 

 

 

 

NOTE − Use DIP

 

 

 

 

 

switch 2 to set

 

 

 

 

*

second−stage

 

 

 

 

heat ON delay.

 

 

 

 

 

OFF−7 minutes.

 

CUT ON−BOARD LINK

 

 

 

 

W914

 

 

 

ON−12 minutes.

 

 

 

 

 

DEHUM

 

 

 

 

 

OR

 

 

 

 

 

HARMONY

 

 

 

 

 

 

 

o

 

* Not required on all units.

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Lennox International Inc SL280UH070V36A, SL280UH090V48B, SL280UH090V36B installation instructions