Installer setup − Page 1 of 8

After power is applied to the thermostat for the first time, the processor checks the system for installed communicating devices, the discovery" screen (figure 2) is displayed on the thermostat; followed by

thepress here to contin- ue.

SYSTEM DISCOVERY IN PROGRESS

 

Figure 2. System discovery

 

tests

setup

HELP

Thermostat 1

Use this Thermostat?

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Figure 3. Use this thermostat screen

During the setup process, alerts may pop open to inform the installer some item of information that affects the setup (figure 4). Tend to any such alerts prior to continuing setup.

critical alert

Active

Critical Alert Code: 31

AIR HANDLER reports:

Lost Communication with

THERMOSTAT −

Latest occurrence: 8/23/09

1:57 PM

close

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Figure 4. Alert window

506052−01 11/09

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Lennox International Inc P506052-01, 2P1109 Installer setup − Page 1, Critical alert, Thepress here to contin- ue