Operating The Thermostat - Honeywell CHRONOTHERM T8624C User Manual

5-1-1 day programming fuel saver thermostats

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Table of Contents

T8624C,D

PROGRAMMING THE THERMOSTAT • OPERATING THE THERMOSTAT

Use the WARMER/COOLER keys to set the tempera-

ture.

You have completed programming the cooling tempera-

tures.

Press and release to start the program.

Go to Step 4.

STEP 4

cleaning.

OFF: Both the heating and cooling systems are off.

This completes the programming of the thermostat.

If the thermostat is removed from the wall to program, replace it following the procedure on page 5.

TEMPORARILY CHANGING THE PROGRAM

These features allow the program to be customized for

those times when someone comes home early, or stays

up late, or plans to be out for the evening.

To keep the current temperature through the

next program period:

To go back to the temperature of the previ-

ous program period:

SET THE SYSTEM AND FAN

SWITCHES ON THE SUB-

BASE.

Depending on thermostat model,

some of the switch positions shown

may not be available on the ther-

mostat. Note the positions provided

on the subbase, then set the

switch(es) as desired.

First set the fan switch.

FAN ON: The fan runs continuously. Use for improved

air circulation during special occasions or for more effi-

cient

FAN AUTO: Normal setting

for most homes. The fan goes

on and off with the air condi-

tioner in summer. In winter, the

fan

systems starts a few minutes

after the furnace comes on. It

stops a few minutes after the

furnace goes off. The fan starts

and stops with the furnace in

some electric heat systems and

with the compressor in heat

pump systems.

Then set the system switch.

HEAT: The thermostat controls

your heating system.

AUTO (select models only): The thermostat controls

either your heating or cooling system, depending on

room temperature.