Lennox International Inc Touch Screen Programmable Communicating Thermostat Table of Contents

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Table of Contents

 

icomfortt Thermostat Terms and Acronyms

3

icomfortt Technical Description

4

icomfortt Thermostat Features

5

Installing icomfortt Thermostat

5

Installer setup

6

System settings

7

Setting time and date

8

Add/remove/modify non−communicating devices

9

Modify communicating device settings

10

Indoor air quality controls

12

Tests

14

Diagnostics

17

Alerts

18

Access installer program from User Home screen

22

Reconfiguring a system

23

Editable parameters table (user and Installer)

25

Alarm Codes and Descriptions

31

Wiring Diagrams

36

WARNING

Always turn off power at the main power source by switching the circuit breaker to the OFF position before installing or removing this thermostat.

All wiring must conform to local and national building and electri- cal codes and ordinances.

Do not switch system to cool if the outdoor temperature is below 45°F (7°C). This can damage the cooling system.

CAUTION

This is a 24VAC low−voltage thermostat. Do not install on volt- ages higher than 30VAC.

Do not short (jumper) across terminals on the gas valve or at the system control to test installation. This will damage the thermo- stat and void the warranty.

IMPORTANT

Read this manual before programming this thermostat.

Use this thermostat only as described in this manual.

506052−01 11/09

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Contents Touch Screen Programmable Communicating Thermostat Controls 506052−01Shipping and Packing List1 11/09Table of Contents Icomfortt Thermostat Terms and Acronyms Icomfortt Technical Description + I − COutdoor Temperature Sensor Icomfortt Thermostat FeaturesInstalling icomfortt thermostat Thermostat TypeThepress here to contin- ue Installer setup − Page 1Critical alert Thermostat Use this Thermostat? Press hereUp/down arrows Installer setup − Page 2Some settings Scroll through a Numeric range forSettings and return to previous settings screen Installer setup − Page 3Setting time and date Oct 2009Add/remove/modify non−communicating devices Installer setup − Page 4Cancel Save YesSetup System devices Installer setup − Page 5Modify communicating device settings About Edit Reset ALL BackInstaller setup − Page 6 ConfirmcancelOnly Installer setup − Page 7Indoor air quality controls System 49W95 A109K00139Dehumidification modes Installer setup − Page 8Humidification modes MIN adj. − Indoor temp 2F below cooling setpointTests to run screen appears Press start to begin testingTests − Page 1 Single test example Current Test Blower Check Blower Operation Cancel nextCurrent Test Blower Check Blower Operation Cancel done Equipment − Page 1 Equipment details editRun diagnostics on Diagnostics − Page 1Select type of device to run Diagnostics on HP Diagnostics RemovestartActive alerts Remind later Alerts − Page 1Alert description Clear BackIngly Alerts − Page 2Clearing alerts If you press yes to ’was action taken?’,10 19 AM UsingAlerts − Page 3 12 19Alerts − Page 4 View cleared alertsAccess installer program from Home screen − Page 1 Qualified Lennox equipment installer warningSetup Tests Equipment Reconfiguring a system − Page 1Setup Tests Equipment tests Start BackReconfiguring a system − Page 2 Changes tonext to advance to the next screenTable on next Editable Parameters Table User and InstallerInstaller settings Table on next AIR Handler Furnace Heat Pump Airflow Setting User settings Alarm Codes and Troubleshooting Alarm ID Message Name Action required to Clear/RecoverIOM Alarm Codes and Troubleshooting Alarm Codes and Troubleshooting Alarm Codes and Troubleshooting Wiring Diagrams − Communicating Systems Optional DIS Charge AIR SEN SOR see DAS Optional Accessories for use with any icomfortt system Discharge AIR Sensor Required for Even HeatFurnace or AIR Handlerstandard 1 or 2 Stage