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Harmony III
™
Zoning System
Features
The Harmony III
™
Zoning
System delivers the ultimate in
temperature control for the
ultimate in home comfort.
Designed for use with Lennox’
variable speed furnaces, air
handlers, air conditioners, or heat pumps** and digital
thermostat, the Harmony III Zoning System provides
the desired temperature in each zone. The system
includes an easy-to-use control panel, comfort-
enhancing dampers and a duct-mounted sensor that
relays data to the control panel.
Solid-State Control Panel Controls up to four zones in your home Provides desired temperatures and consistent airflow
Discharge Air-Sensor Probe Continually monitors the temperature in the supply airstream Helps prolong the life of the equipment
Digital Thermostats Control temperatures in each zone Precisely regulate heating and cooling temperatures
(one for each zone)
Vacation Mode Defaults to Zone 1 thermostat settings, which controls Maximizes efficiency
the temperature for your entire home while you’re away
Auto Changeover Automatically alternates between heating and cooling Delivers enhanced comfort and peace of mind
during transitional weather
Continuous Fan Allows continuous fan operation by zone Creates better indoor air quality
Feature How It Works How It Helps
Comfortable Provides consistent
air temperatures for exceptional home comfort
The Harmony III Zoning System meets the airflow
requirements of one area, without affecting other areas.
And it works with advanced heating and cooling systems,
so it can regulate temperature to as little as one degree*
of the thermostat setting.
Flexible Divides your home into up to
four different zones
The Harmony III system lets you increase, reduce or shut
off heating or cooling in each zone to match the needs
of your household.
Quiet Increases your comfort, without
increasing sound levels
The Harmony III system allows your Lennox
®
HVAC
equipment to deliver peak performance without
continually operating at peak capacity. Lower speeds
mean lower sound levels.
*Depending on the brand of digital thermostat.
**System provides stand-alone dual-fuel capability.