Honeywell CT3550 User Manual

Page 4

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4

M18594

Aux Ht

System

Off

Auto

WakeLeaveReturnSleep

Mon

Wait

Fan

On Auto

In

Room

Humid

Outdoor

Filter

AM

Hold for

Repl Batt

Recovery

Cool

TueWedThuFriSatSun Days

Set Program

Set Day/Time Temporary Setting

Em

Heat

Em Ht

DISPLAYS EITHER CURRENT
TIME OF DAY OR PROGRAM TIMES

SHOWS THERMOSTAT IS IN
THE SET DAY/TIME MODE

SHOWS TEMPERATURE SETTING
CHANGED FOR THIS PROGRAM PERIOD

SHOWS THE TEMPERATURE
DISPLAYED IS THE CURRENT
SET TEMPERATURE

SHOWS THE TEMPERATURE
DISPLAYED IS THE CURRENT
ROOM TEMPERATURE

SHOWS THE BATTERIES ARE
LOW AND MUST BE
REPLACED

DISPLAYS EITHER ROOM
OR SET TEMPERATURES

SHOWS CURRENT FAN
KEY POSITION ON/AUTO

SHOWS THERMOSTAT IS
CALLING FOR THE FAN

SHOWS SMART RESPONSE IS OFF.
CONVENTIONAL RECOVERY IS ON

SHOWS THERMOSTAT IS PROCESSING
INFORMATION AND WAITING TO CALL FOR HEAT OR COOL

SHOWS SMART RESPONSE IS CHANGING
THE TEMPERATURE TO MEET THE
CURRENT PROGRAMS

SHOWS THAT THERMOSTAT IS
"CALLING" FOR HEAT OR COOL

SHOWS CURRENT
SYSTEM KEY POSITION
HEAT/OFF/COOL

SHOWS CURRENT
PROGRAM PERIOD
OR PERIOD BEING
PROGRAMMED

SHOWS CURRENT
DAY OR DAYS BEING
PROGRAMMED

SHOWS VACATION
HOLD DURATION

SHOWS WHEN
THERMOSTAT IS IN THE
PROGRAMMING MODE

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