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Harmony III
Installation, setup and user manual
Lennox HARMONY III Installation, Setup And User Manual
Zoning system
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Also See for HARMONY III
:
Installation instructions manual
(60 pages)
,
Manual
(13 pages)
,
Homeowner's manual
(8 pages)
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Contents
Table of Contents
Troubleshooting
Bookmarks
Table of Contents
Table of Contents
General
Shipping and Packing List
Acronyms Used
Additional Parts Required
Introduction
Residential Zone Control System - Overview of Field Wiring
System Components
Zone Control System
Discharge Air Sensor (DAS)
Thermostats
Transformers
Dampers
Remote Vacation Switch
Installation Planning and Selecting Heating and Cooling Equipment
Installation Considerations
Variable Speed Blower Motor (VSM)
Selecting/Installing Indoor and Outdoor Units
Optional Dehumidification Accessories
Installing Zone Control Components
Discharge Air Sensor (DAS)
Zone Control Panel
Thermostats
Transformer
Dampers
Zone Linking
Zone Control Panel Jumpers
Setup for Controlling Equipment Staging and Volume of Air to Zones
PIAB Jumpers Affect Blower Operation
Upgrading from Harmony II Zoning System
Zone 1 PIAB Jumpers - 140ºF das
Determining PIAB Jumper Settings
Continuous Air Reduction Jumpers
Heating Air Reduction Jumpers
Heat/Cool Staging
Heating Staging Temperature Jumper
Cooling Staging Temperature Jumper
Gas Furnace and Air Conditioning
Heat Pump with Electric Backup Heat
Heat Pump - Dual Fuel Heating, 1-Stage or 2 Stage Heat Pump and Gas Furnace
1.11. Common System Component Wiring
1.11.1. Dampers and Damper Transformer
System Configuration/E-Heat Stages)
1.11.2. Discharge Air Sensor (DAS) Probe
1.12. Component Specific Wiring
1.12.1. Zone Control Transformer Phasing
Thermostat
1.12.3. Gas Furnace
Air Conditioner Unit
Minimum CFM in Variable Speed Furnace and Air Handlers
1.14. System Flow Diagrams
Heat Pump
Installing Heat Pump and Accessories
Equipment Installation
Pressure Switch
Pressure Switch Wiring
Tee (High Pressure Switch; Heat Pumps Only)
Balance Point Sensor (Outdoor Thermostat)
Defrost Tempering Kit
Variable Speed Motor (VSM) Air Handler and Heat Pump - Option
(Zoning System)
Heat Pump System Start-Up and Checkout
Powering the System (All Systems)
Checkouts
Typical Heat Pump Heating Checkout (Single Zone)
Typical Heat Pump Heating Checkout (Multiple Zone)
Typical Heat Pump Heating Checkout (Central Mode)
Heat Pump System Start-Up and Checkout
Troubleshooting Diagram
Heat Pump Heating Operation
Defrost Operations
Gas Furnace
Typical Wiring for Variable-Speed Gas Furnace and Outdoor AC Unit - Option 1
Furnace Variable Speed Motor Electrical Adjustments
Variable Speed Motor Furnace System Operations
Operation
Integrated Furnace Control W2 Terminal to Harmony III Zoning System Control
Installation Setup Worksheets
SLP98V - Cooling/Heating (Non-Heat Pump Applications)
SL280V, SL280NV, EL296V and SL297NV - Cooling/Heating (Non-Heat Pump)
Zone Control Operation in a Gas Furnace System
Zone Thermostats
3.3.4.2. Balance Point Setting
Zone Mode
Central (Vacation) Mode
Cooling Operation
Installation Setup Worksheets for Honeywell 2-Stage IFC Control - Cooling/Heating (Non-Heat Pump)
Furnace System Start-Up and Checkout
Start-Up the System (All Models)
Checkouts
Typical Gas Heating Checkout (Single Zone)
Typical Gas Heating Checkout (Multiple Zone)
Typical Gas Heating Checkout (Central Mode)
Zoning System with Gas Furnace Troubleshooting - Option 1
Troubleshooting Diagrams
Gas Heating Operation
Discharge Air Upper Limit and Differential Temperatures
Air Handlers
Variations on Common AC Unit Applications
Heating/Cooling Equipment Installation
Air Handler Wiring
Variations
Electrical Adjustments
Communicating Indoor Control
Non-Communicating Indoor Control
Installation Worksheets
Cooling/Heating with Electric Strip Heat (Non-Heat Pump)
4.2.3.2. Heat Pump - Electric Strip Heat
Cooling Only or Cooling with Hot Water Coil (Non-Heat Pump)
Dual Fuel (Option 3)
Zone Control System Wiring - Option 3
Dual Fuel System Start-Up Defrost Temperating Sensor Placement and Checkout
Start-Up the System (All Models)
Defrost Temperating Sensor Placement
Checkouts
Typical Dual Fuel Gas Heating (Single Zone)
Typical Dual Fuel Gas Heating (Multiple Zone)
Typical Dual Fuel Gas Heating (Central Mode)
Zoning System with Dual Fuel Troubleshooting - Option 3
Troubleshooting Diagram
Dual Fuel Operation (below Balance Point)
Discharge Air Upper Limit and Differential Temperatures
Dual Fuel Operation (above Balance Point)
Defrost Operation
Installation Setup Worksheets
5.3.6.1. Dual Fuel - Indoor Unit Honeywell 2-Stage Ifc Control And Heat
Pump
5.3.6.2. Dual Fuel - SLP98 Variable Capacity and Heat Pump
Dual Fuel - Variable Speed SL280V, EL296V, SL297NV and Heat Pump
Troubleshooting
Operation and Troubleshooting Indicators
Zone Control Panel Leds
Fault Recall and Time Delay Override
Time Delays
Discharge Air Probe Checkout (All Systems)
Blower Speed Checkout
Diagnostic LED Error Codes
Air Delivered by Blower
Formulas
PIAB Calculation Worksheet
Airflow Data
User Guide
What Is the Harmony III™ Zoning System
What Does the Harmony III™ Zoning System Consist of
How Do I Set the Control Center Switches
How Do I Use the Thermostat Controls
How Do I Use the Central (Vacation) Mode
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Quick Links
1
Residential Zone Control System - Overview of Field Wiring
2
Diagnostic Led Error Codes
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HARMONY III™ zoning system (X9953)
507936-01 6/2021
Supersedes 7/2019
Installation, Setup and User Guide
2021
Lennox Industries Inc.
©
Dallas, Texas, USA
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Table of Contents
Troubleshooting
Heat Pump System Start-Up and Checkout
24
Zoning System with Gas Furnace Troubleshooting - Option 1
36
Zoning System with Dual Fuel Troubleshooting - Option 3
53
Troubleshooting
59
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