Honeywell CHRONOTHERM IV DELUXE T8624D User Manual

Page 8

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T8624D CHRONOTHERM

®

IV DELUXE PROGRAMMABLE THERMOSTAT

68-0166—1

8

Table 6. 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 3

Heating cycle

4

6

Stage 1

3 or 9

3—3 cph used for steam

rate

a

5

Stage 2

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
temperature 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 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)

a

The cycle rate for the last stage of heat is adjustable with 6 cph being the factory setting.

(continued)

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