Honeywell RTHL2410 User Manual

Make sure heating and cooling temperatures are set to acceptable ranges:

•  Heat: 40° to 90°F (4.5° to 32°C).
•  Cool: 50° to 99°F (10° to 37°C).

•  Compressor protection feature is engaged. Wait 5 minutes for the system 

to restart safely, without damage to the compressor (see page 15).

•  Set the System switch to Heat, and set the temperature level above the 

current room temperature (see page 7).

•  Set the System switch to Cool, and set the temperature level below the 

current room temperature (see page 7).