Lennox International Inc. Lennox Zone Control System user manual

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HOMEOWNER’S
MANUAL

2006 Lennox Industries Inc.
Dallas, Texas, USA
Harmony III
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 III 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

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Motor (VSM) and either a single- or two-speed con- What is the Harmony III
Zone Control Sys- densing unit. tem? 2. Option 2Blower coil unit with variable speed blower Lennox Harmony III Zone Control System manages the motor and either a single- or two-speed heat pump. distribution of conditioned air to as many as four specific 3. Option 3Gas furnace with variable speed blower areas or zones in the home. The Harmony III control is motor and heat pump. an advanced control system that allows a

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2. Emergency Heat switchWhen the Harmony III NOTE − Usually, Emergency Heat is more expensive control center is used with a heat pump and the Emer- to operate than Heat Pump heating. If so equipped, gency Heat switch is turned ON, the unit will satisfy all use Emergency Heat only when necessary. heating demands with electric backup heat. When the To turn off the system, either: A − Turn each thermostat to Emergency Heat switch is OFF, the heat pump is used OFF, or B − Turn the master thermosta

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How do I use the thermostat controls? What does the service light indicate? On heat pump systems only, the service light, located on Whether in central mode (where only zone 1 thermostat is the master thermostat, indicates that the outdoor unit re- functional) or in the zone mode (where all thermostats are quires service. The service lights on zone 2, 3 and 4 ther- functional), thermostats function as in a traditional, non− mostats are not functional. Call your Lennox service tech- zoned, system

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time are zoned together. Bedrooms which are general- How are zones determined? ly used at night, should not zoned with a living room Your Lennox dealer has sectioned the rooms of your home that is used only during the day or evening. or building into zones using the following considerations: OWNER REMINDER! Be sure the system installer has re- 1. Structural and Architectural ConsiderationsIn multi- level houses using regular HVAC systems, heated air corded the zoning information in Table 1 on p

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Table 1. Homeowner’s Zone Information Record Zone number Record which rooms are zoned together and controlled by thermostat # 1 2 3 4 Lennox Dealer: Contact: Telephone Number: Installation Date: Page 6