T8665A CHRONOTHERM® IV DELUXE PROGRAMMABLE WIRELESS THERMOSTAT
69-1535-3 6
Table 3. Thermostat Installer Setup Options.
Select
Installer Setup
Number
(Press Time V
key to
change)
Factory Setting
Other Choices
(Press V or W key to change)
Actual
SettingDisplay Description Display Description
Not used 1 — — — — —
Fan operationa2 0 Conventional
applications where
equipment controls
fan operation in heat
mode
1 Heat pump or electric heat
applications where
thermostat controls fan
operation in heat mode
Not used 3 — — — — —
Heating cycle
rate
4 6 6—6 cph used for
conventional heat
1, 3 or 9 1—1 cph used for radiant
floor heat, gravity system
3—3 cph used for hot
water systems or high
efficiency furnaces
9—9 cph used for electric
heat systems
Not used 5 thru 11 — — — — —
System setting
adjustment
12 1Manual changeover 0 or 2 0—Auto changeover
2—Auto only
Adaptive
Intelligent
Recovery™
control
13 0Adaptive Intelligent
Recovery™ control
is activated (system
starts early so
setpoint is reached
by start of program
period)
1Conventional recovery
(system starts recovery at
programmed time)
—
Degree
temperature
display
14 0Temperature is
displayed in °F
1Temperature is displayed
in °C
Not used 15 — — — — —
Clock format 16 012-hour clock format 124-hour clock format
Not used 17 and 18 — — — — —
Extended fan
operation in
heatinga
19 0No extended fan
operation after the
call for heat ends
1Fan operation is extended
90 seconds after the call
for
heat ends.
Extended fan
operation in
coolinga
20 0No extended fan
operation after the
call for cool ends
1Fan operation is extended
90 seconds after the call
for
cool ends.
Not used 21 thru 29 — — — — —
Deadband 30 3 Heating and cooling
setpoints can be set
no closer than 3°F
(1.5°C)
4 thru 10 Heating and cooling
setpoints can be set no
closer than the chosen
value:
4—4°F (2°C)
5—5°F (2.5°C)
6—6°F (3°C)
7—7°F (3.5°C)
8—8°F (4°C)
9—9°F (4.5°C)
10—10°F (5°C)
Not used 31 and 32 — — — — —
Minimum off
time for the
compressor
33 5five-minute
minimum off time for
the compressor
0 thru 4 Minimum number of
minutes (0 thru 5) the
compressor will be off
between calls for the
compressor