Honeywell RTHL2410 Installation Guide

SETUP

WIRING

ASSIST

ANCE

TR
OUBLESHOO

TING

1

0

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0  Heating & cooling: Gas, oil or electric heating with 

central air conditioning or heat pump without auxiliary/
back-up heat.

1  Heat pump with auxiliary/backup heat: 

Outside compressor provides both heating and cooling.

Press the s or t button to select the type of Heat/Cool 

system you have in your home.

Press to 

change 

setting.

When finished, 

press s and t 

to advance to the 

next function.

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AND

OR