E2006 Lennox Industries Inc. Dallas, Texas, USA

HOMEOWNER’S

MANUAL

Harmony IIIt Zone Control System

CONTROLS

 

505,024M

Litho U.S.A.

05/06

 

Supersedes 01/06

 

IMPORTANT: Read this instruction manual completely! Retain for future reference.

Contents

Page

What Is the Harmony IIIt Zone Control System?

. . 2

What does the system consist of?

. . 2

How do I set the control center switches?

. . 2

How do I use the thermostat controls?

. . 4

What does the service light indicate?

. . 4

How do I use the central (Vacation) mode?

. . 4

How do I use the zone mode?

. . 4

How are zones determined?

. . 5

Thermostat replacement and maintenance

. . 5

Homeowner’s Zone Information Record

. . 6

05/06

505,024M

*2P0506*

*P505024M*

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Lennox International Inc Lennox Zone Control System, Harmony III owner manual HOMEOWNER’S Manual, Contents