69-1432-1
5
T8000, T8001 PROGRAMMABLE THERMOSTAT
NOTE: In installer setup only, each press of the ▲ key
momentarily displays 1. Each press of the ▼ key
momentarily displays 2. When the keys are
released, these one-digit codes are no longer
displayed.
2. Setting °C or °F.
a. Press the ▲ key
again to display
the current setting.
b. Press the ▼ key to
change the °C or
°F indication.
3. Setting Heat Cycle Rate
(see Table 2 for the cycle rate options and equip-
ment).
a. Press the ▲ key
to display the
current heat
cycle rate setting
of 1, 3, 4, 5, 6, 9,
or 12 cph.
b. If the desired cycle rate is displayed, press the
▲ key to exit the installer setup.
c. To change the
heat cycle rate,
press the ▼ key
until your choice of
1, 3, 4, 5, 6, 9, or
12 is displayed.
d. Press the ▲ key to
display cooling
algorithm configu-
ration default.
e. Press the ▲ key
again to change
cooling algorithm to C1 or C3.
C1 = Standard cooling algorithm.
C3 = Agressive cooling algorithm (can
cause overshooting).
f. Press the ▲ key again. Current configuration
(CC) is displayed. A typical example is shown,
but CC varies by
model. (This
information is for
factory use only.)
4. Exit Installer
Setup.
a. Press
the ▲
key to
save all
changes
and return to normal operation.
Table 2. Heating Cycle Rate
M12586
M12587
M12588
M12589
M12590A
PM
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. 11.
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.
System Cycles Per Hour
Steam, Gravity 1
Hydronic Heat, Condensing
Gas Furnaces
a
3
Gas or Oil Forced Air 6
Electric Heat 9
Special Applications
b
12
a
High efficiency furnace (90+).
b
Refer to the equipment manufacturer’s Instructions.
M1469
M1469
SYSTEM
Cool Off Heat
Auto On
FAN
M14693
Hold
Select
T
U
E
PM
4, 5, 12
Fig. 11. Digital Display and System Switches.