Operation; Setting Current Time And Day; Setting Fan And System Switches - Honeywell T8000C Installation Instructions Manual

T8000C PROGRAMMABLE THERMOSTAT

Operation

Setting FAN and SYSTEM Switches

Fan and system settings are controlled manually by using
the switches located at the bottom of the thermostat case.
See Fig. 10.
FAN Switch
Fan switch settings are:
On: The fan runs continuously. Use for improved air
circulation and air quality.
Auto: Normal setting for most homes. In cooling, the fan
starts and stops with the cooling equipment. In
heating, the fan is controlled directly by the heating
equipment and may start a few minutes after the
heating equipment turns on (most systems). When
the fan operation (fuel) switch is in the E position,
the fan starts and stops with the heating equipment.
Slide the FAN switch in the lower left corner of the
thermostat to select the desired fan setting.
SYSTEM Switch
System switch settings control thermostat operation as
follows:
Cool: The thermostat controls the cooling system.
Off: Both heating and cooling are off.
Heat: The thermostat controls the heating system.
Slide the SYSTEM switch in the lower right corner of the
thermostat to select the desired system setting.
T U E
Fig. 9. Digital Display and System Switches.
69-1434–1
H o l d
S e l e
c t
M14693

Setting Current Time and Day

1. To Set Current Time.
a. Press Select twice.
b. Press
set current time.
2. To Set Day of Week.
a. Press Select
again.
b. Press
set current day.
To use the preprogrammed time and temperature (see
Table 3), press Hold to exit the programming mode.
Setting Time and Temperature
The T8000C is preprogrammed with the time and tem-
perature settings shown in Table 3. For instructions on
programming the thermostat refer to the Owner's Guide,
form no. 69-1143.
Table 3. Preprogrammed Time
and Temperature Settings.
Period Time
Wake 6:00 AM
Leave 8:00 AM
Return 6:00 PM
Sleep 10:00 PM
CHECKOUT
Heating
1. Slide the SYSTEM switch to Heat and the FAN
switch to Auto.
2. Press and hold the
setting several degrees above the room tempera-
ture; the heating equipment should start. In conven-
tional systems, the system turns on the fan through
the use of a time delay relay or through a limit
control. When the fan operation (fuel) switch is in the
E position, the fan starts immediately.
3. Press the key to lower the temperature setting
below the room temperature. Heating equipment
should stop.
6
SET
PM
or to
SET
PM
or to
Heat Setpoint Cool Setpoint
70°F (21°C) 78°F (26°C)
62°F (17°C) 85°F (29°C)
70°F (21°C) 78°F (27°C)
62°F (17°C) 82°F (28°C)
key to raise the temperature
M12591A
M12592A
M12593A
M12594A