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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 operation
a
2 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 1 Manual changeover 0 or 2 0—Auto changeover
2—Auto only
Adaptive
Intelligent
Recovery™
control
13 0 Adaptive Intelligent
Recovery™ control
is activated (system
starts early so
setpoint is reached
by start of program
period)
1 Conventional recovery
(system starts recovery at
programmed time)
—
Degree
temperature
display
14 0 Temperature is
displayed in °F
1 Temperature is displayed
in °C
Not used 15 — — — — —
Clock format 16 0 12-hour clock format 1 24-hour clock format
Not used 17 and 18 — — — — —
Extended fan
operation in
heating
a
19 0 No extended fan
operation after the
call for heat ends
1 Fan operation is extended
90 seconds after the call
for
heat ends.
Extended fan
operation in
cooling
a
20 0 No extended fan
operation after the
call for cool ends
1 Fan 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 5 five-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