Honeywell CHRONOTERM IV T8624D Installation Instructions Manual Download Page 5

69-1074

5

T8624D CHRONOTHERM

 

®

 IV DELUXE ZONE MULTISTAGE THERMOSTAT

Temperature Settings

Refer to Table 2 for the default program. If the daytime
energy savings period is not used, press the period key
(Leave or Return) until the time is blank. The fan setting
feature is available on select thermostat models. See
Owners Guide, form number 69-1073, for complete
instructions on changing the program.

Table 2. Default Program Settings.

To advance to the next Installer Setup, press the Time

 

key.

To change a setting, use the increase 

 or decrease

 key.

To scroll the Installer Setup numbers backwards,
press the Time 

 

key.

To exit the Installer Setup, press Run Program.

Period

Time

Heat

Setpoint

Cool

Setpoint

Fan

Setting

Wake

6:00 AM

70°F

(21°C)

78°F

(25.5°C)

Auto

Leave

8:00 AM

62°F

(16.5°C)

85°F

(29.5°C)

Auto

Return

6:00 PM

70°F

(21°C)

78°F

(25.5°C)

Auto

Sleep

10:00 PM

62°F

(16.5°C)

82°F

(28°C)

Auto

Fig. 9. Display of all the segments of the LCD.

Aux Ht

Heat

Auto

System

Fan

Off

Auto

Wake

Mon

Wait

In

Room

Outdoor

%Humid

Auto 

Sav

AM

PM

Hold for

Cool

Repl Batt

On

Recovery

DST

Cool

TueWedThuFriSatSun

LeaveReturnSleep

M10345

Set Program

Set Day/Time

Start Time

Temporary Setting Enrg

Em Heat

Em Ht

M10349

INSTALLER SETUP
NUMBER DISPLAY
(COLUMN 2
OF TABLE 3)

FACTORY SETTING
OR OTHER CHOICE
DISPLAY (COLUMN 3
OR 5 OF TABLE 3)

Fig. 10. Display of Installer Setup number and setting.

IMPORTANT

Only configurable numbers are shown on the
device. Example: If thermostat does not have a
system key, Installer Setup Number 12 will not
be displayed. Review Table 3 factory-settings
and mark any desired changes in the Actual
Settings column. When Installer Setup is
complete, review the settings to confirm that
they match the system.

INSTALLER SETUP

NOTE:

For most applications, the thermostat factory-
settings will not need to be changed. Review the
factory settings in Table 2 and if no changes are
necessary, go to the Installer Self-Test section.

The Installer Setup is used to customize the thermostat to
specific systems. Some of the options include temperature
display, changeover and outdoor temperature display.
Installer Setup numbers are listed in Table 3. The table
includes all the configuration options and the factory-
settings for the T8624.

A combination of key presses are required to use the
Installer Setup feature.

To enter the Installer Setup, press and hold the
Information

   i   

key with the increase 

 and decrease

 keys until the first number is displayed. All display

segments appear for approximately three seconds
before the number is displayed. See Fig. 9 and 10.

Summary of Contents for CHRONOTERM IV T8624D

Page 1: ...tructions and on the product to make sure the product is suitable for your application 3 Installer must be a trained experienced service technician 4 After completing installation use these instructions to check out the product operation Location Install the thermostat about 5 ft 1 5m above the floor in an area with good air circulation at average temperature See Fig 1 Do not install the thermosta...

Page 2: ...ng Loosely insert the mounting screws into the holes Tighten mounting screws WIRING All wiring must comply with local electrical codes and ordinances Refer to Fig 3 and 4 for typical hookups A letter code is located near each terminal for identification CAUTION Disconnect power before wiring to prevent electrical shock or equipment damage Loosen the terminal screws on the wallplate and connect the...

Page 3: ...Be sure to align the subbase pins to avoid damage to the thermostat Press lower edge of case to close and latch NOTE To remove the thermostat from the wall first pull out at the bottom of the thermo stat remove top last Fig 5 Proper wiring technique O G B C Y1 R W1 W2 Y2 OT OT W2 L G Y R W M6 M4 M1 THERMOSTAT ZONE 1 M11418 TotalZone PANEL THERMOSTAT CONNECTIONS WHEN USING W2 ON THE THERMOSTAT TO C...

Page 4: ...ing Off Both the heating and cooling are off Fig 8 T8624D System and Fan key locations NOTE Always press the keys with your fingertip or similar blunt tool Sharp instruments like a pen or pencil point can damage the keyboard M15042 Hold Temp Run Program Copy Daylight Time Set Current Day Time System Fan Time Set Program Day System Fan Wake Leave Return Sleep Heat Cool Settings M10405 Time Set Prog...

Page 5: ...Em Ht M10349 INSTALLER SETUP NUMBER DISPLAY COLUMN 2 OF TABLE 3 FACTORY SETTING OR OTHER CHOICE DISPLAY COLUMN 3 OR 5 OF TABLE 3 Fig 10 Display of Installer Setup number and setting IMPORTANT Only configurable numbers are shown on the device Example If thermostat does not have a system key Installer Setup Number 12 will not be displayed Review Table 3 factory settings and mark any desired changes ...

Page 6: ...aptive 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 h...

Page 7: ...eat Cool Settings Daylight Time Copy PM Tue Set Day Time Installer Setup Number Press Time key to Factory Setting Other Choices Press or key to change Actual Select change Display Description Display Description Setting Minimum off time for the compressor 33 5 5 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 c...

Page 8: ...same time until 10 appears All segments of the display will be displayed before the 10 appears See Fig 11 and 12 M10316 Time Set Program System Fan Run Program Run Program Hold Temp Set Current Day Time Wake Leave Return Sleep Day Heat Cool Settings Daylight Time Copy Auto System Fan Wake Room AM DST Tue Heat Fig 11 Display of all the segments of the LCD Aux Ht Heat Auto System Fan Off Auto Wake M...

Page 9: ...ge one heat comes on The system fan is also energized 12 Stage two heat comes on Stage one heat and system fan remain on 11 Stage two heat turns off 10 Stage one heat and system fan turn off Cooling Equipment Self Test Time 30 Change from heating to cooling equipment self test 31 Stage one cool and system fan come on 32 Stage two cool comes on Stage one cool and system fan remain on 31 Stage two c...

Page 10: ...r to soak in the outdoor air for a minimum of five minutes before taking a reading TROUBLESHOOTING GUIDE Continued Symptom Possible Cause Action Display will not come on Thermostat is not being powered Check for 24 Vac between R and C terminals If missing 24 Vac check if the circuit breaker is tripped reset the circuit breaker check if the system fuse is blown replace the fuse check if the power s...

Page 11: ...et heating setpoint to desired temperature Cooling will not come on No power to the thermostat Check for 24 Vac between R and C If missing 24 Vac check if the circuit breaker is tripped reset the circuit breaker check if the system fuse is blown replace the fuse check if the power switch on the HVAC equipment is in the Off position set to the On position check wiring between thermostat and zone co...

Page 12: ...69 1074 12 T8624D CHRONOTHERM IV DELUXE ZONE MULTISTAGE THERMOSTAT 69 1074 J H 3 97 Printed in Taiwan R O C 57 Bushes Lane Elmwood Park NJ 07407 3204 www honeywell com yourhome ...

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