Honeywell CHRONOTERM IV T8624D User Manual
Page 6
69-1074
6
T8624D CHRONOTHERM
®
IV DELUXE ZONE MULTISTAGE THERMOSTAT
a
The cycle rate for the second stage of heat is adjustable with 6 cph being the factory setting.
(Continued)
Table 3. Thermostat Installer Setup Options.
Installer
Setup Number
(Press Time
▲
key to
Factory-Setting
Other Choices
(Press
▲
or
▼
key to change)
Actual
Select
change)
Display
Description
Display
Description
Setting
Not used
1 thru 4
—
—
—
—
—
Heating cycle
rate
a
5
6
Stage 2
3 or 9
3—3 cph used for steam
systems
6—6 cph factory setting for
all stages of system
9—9 cph used for electric
heat
Not used
6 thru 11
—
—
—
—
—
System setting
adjustment
12
1
Manual changeover
0 or 2
0—Auto changeover
2—Fixed auto changeover
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 tempera-
ture 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
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
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 23
—
—
—
—
—
Outdoor temp-
erature display
(models with OT
terminals)
24
0
No outdoor temperature
is displayed
1
Outdoor temperature is
displayed. Needs a
C7089B1000 Outdoor Sensor
to operate.
Not used
25 thru 32
—
—
—
—
—