Honeywell RTHL3550D User Manual

Operating Manual
69-2583ES—01 6
About your new thermostatSelect the fan setting
Press the FAN button to select Auto or On.
In “Auto” mode (the most commonly used setting),
the fan runs only when the heating or cooling sys-
tem is on. If set to “On,” the fan runs continuously.
MCR32591
SystemFan
Auto Heat
SystemFan
On Heat

Honeywell RTHL3550D Specifications

General

Brand	Honeywell
Model	RTHL3550D
Category	Thermostat
Language	English