Temperature Settings; Installer Setup - Honeywell DMULTISTAGE T8524C Installation Instructions Manual

T8524C,D MULTISTAGE MICROELECTRONIC THERMOSTATS
HEAT OFF COOL
SYSTEM
Selection for heating or cooling
equipment operation.
ON AUTO
Heat - Heating equipment
Off - No equipment
Cool - Cooling equipment
Fig. 7. T8524C system and fan switches location.
System Fan
Press to select Press to select
heating or cooling heating or cooling
equipment. equipment.
Em. Ht.-Emergency heating On— Fan runs continuously
Heat— Heating equipment Auto—Fan runs when
System
Off — No equipment heating or cooling
Cool—Cooling equipment equipment operates
Auto—Thermostat
automatically selects
heating and cooling
equipment.
1 CHECK LIGHT ON SELECT MODELS
Fig. 8. T8524D system and fan keys location.
NOTE: Always press the system and fan keys with your
fingertip or similar blunt tool. Sharp instruments
like a pen or pencil point can damage the
keyboard.

Temperature Settings

The default setpoint for heat is 70°F (21°C) and for cool is
78°F (25.5°C). Press the increase
change the present setting. To change between heat and
cool, press the Information i key until the setting to be
changed appears.

INSTALLER SETUP

NOTE: For most applications, the thermostat factory-
settings do not need to be changed. Review the
factory-settings in Table 2 and if no changes are
necessary, go to the Installer System Test
section.
The Installer Setup is used to customize the thermostat to
specific systems. Installer Setup Numbers are listed in
Table 2. The table includes all the configuration options
available.
69-1055—1
i
HEAT
FAN
On - Fan runs continuously
Auto - Fan runs when
heating or cooling
ON AUTO
equipment operates
M10146
i
System
Fan
Fan
1
M10147
or decrease
A combination of key presses are required to use the
Installer Setup feature.
— To enter the Installer Setup mode, press and hold the
Information i key with the increase
keys until the first number is displayed. All display
OFF COOL
segments appear for approximately three seconds
before the number is displayed. See Fig. 9 and 10.
— To advance to the next Installer Setup number, press
the Information i key.
— To change a setting, use the increase
crease
— To exit the Installer Setup, press and hold the
Information i key until the display returns to normal
(approximately three seconds). The display scrolls the
numbers backwards to get to the normal display. The
Installer Setup is automatically exited if no key
presses are made for five minutes.
IMPORTANT
Only configurable numbers are shown on the
device. Example: If the thermostat does not have
a system key, Installer Setup Number 12 will not
be displayed. Review Table 2 factory-settings
and mark any desired changes in the Actual
Setting column. When Installer Setup in com-
plete, review the settings to confirm that they
match the system.
Em Ht Temporary Setting
Aux Ht
Repl
Batt
System
Em HeatOffCool Auto Only
Fig. 9. Display of all the segments of the LCD.
key to
Fig. 10. Display of Installer Setup mode and setting.
CAUTION
Electric heat systems must be configured to 01 in
Installer Setup 02 to prevent equipment damage
caused by the system running without the fan.
4
key.
Wait Heat Cool
MODE NUMBER DISPLAY
(COLUMN 2 OF TABLE 2)
FACTORY SETTING OR
OTHER CHOICE DISPLAY
(COLUMN 3 OR 5 OF TABLE 2)
and decrease
or de-
Remote
Room
%Humid
Outdoor
Fan
OnAuto
M4844
M10105