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69-1055—1

6

T8524C,D MULTISTAGE MICROELECTRONIC THERMOSTATS

Installer Setup  

Number

(Press 

  i   

key

Factory-Setting

Other Choices  

(Press 

 or  

 key to change)

Actual

Select

to change)

Display

Description

Display

Description

Setting

Heating
setpoint range
stop

a

34

90

Heating setpoint can be
set no higher than 90°F

40 thru
90

Number can be set
anywhere between 40 and
90 in 1°F increments

Cooling
setpoint range
stop

a

35

45

b

Cooling setpoint can be
set no lower than 45°F

b

45

b

 thru

99

Number can be set
anywhere between 45

b

 and

99 in 1°F increments

Not used

36

Temperature
display
adjustment

37

00

No difference in
displayed temperature
and actual room
temperature

-3 thru
3

1—Display adjusts to 1°F

higher than actual room
temperature

2—Display adjusts to 2°F

higher than actual room
temperature

3—Display adjusts to 3°F

higher than actual room
temperature

-1—Display adjusts to 1°F

lower than actual room
temperature

-2—Display adjusts to 2°F

lower than actual room
temperature

-3—Display adjusts to 3°F

lower than actual room
temperature

Table 2. Thermostat Installer Setup Options (continued).

Em HeatOffCool Auto Only

Heat Cool

OnAuto

System

Fan

Room

Outdoor

Em Ht Temporary Setting

Wait

%Humid

Aux Ht

Remote

Repl

Batt

M4844

M6792

TEST MODE
NUMBER

a

 

Available on select models.

b

 

T8524D is 48

°

F (9

°

C).

IMPORTANT

Review the settings to confirm that they match
the system.

INSTALLER SYSTEM TEST

Use the Installer System Test to check the thermostat
configurations and operation. Refer to Table 3 for a list of
the available system tests.

To start the system test::

NOTE:

The minimum off time for compressors is
bypassed during the Installer System Test.

Press and hold the increase 

 and decrease 

▼ 

keys, at

the same time, until two zeros appear. All segments of the
LCD are displayed before the two zeros appear.

Test  

Number

System Test Description

10-19

Heating equipment can be turned on and off

30-39

Cooling equipment can be turned on and off

40-49

Fan equipment (T8524D only) can be turned
on and off.  

60-69

System key or system switch position test

70-79

Thermostat information including date code
and software versions are displayed

IMPORTANT

T8524C models must set the switches to the
equipment that is being checked for the equip-
ment to operate.

NOTE:

Press and hold the increase 

 and decrease 

keys for three seconds to exit the System Test.
The System Test times out after five minutes
without any key presses.

Table 3. Tests Available In The Installer System Test.

Содержание DMULTISTAGE T8524C

Страница 1: ... your application 3 Installer must be a trained experienced service technician 4 After completing installation use these instructions to check out the product operation CAUTION Disconnect power supply to prevent electrical shock or equipment damage 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 th...

Страница 2: ...ews into the holes 6 Tighten mounting screws WIRING All wiring must comply with local electrical codes and ordinances Refer to Fig 3 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 1 Loosen the terminal screws on the wallplate and connect the system wires See Fig 4 IMPORTANT Us...

Страница 3: ...A B PRESS LOWER EDGE OF CASE TO LATCH A ENGAGE TABS AT TOP OF THERMOSTAT AND WALLPLATE M6801 DISPLAY PRESENT SETTINGS AND SCROLL THROUGH INSTALLER SETUP MODES INFORMATION KEY i DECREASE TEMPERATURE SETTING INCREASE TEMPERATURE SETTING Using Thermostat Keys The thermostat keys are used to set temperature display present setting configure Installer Setup check System Test display outdoor temperature...

Страница 4: ...ting To change between heat and cool press the Information i key until the setting to be changed appears INSTALLER SETUP NOTE For most applications the thermostat factory settings do not need to be changed Review the factory settings in Table 2 and if no changes are necessary go to the Installer System Test section The Installer Setup is used to customize the thermostat to specific systems Install...

Страница 5: ...geover Not used 13 Degree temperature display 14 00 Temperature is displayed in F 01 Temperature is displayed in C Not used 15 thru 18 Extended fan operation in heatinga b 19 00 No extended fan operation after the call for heat ends 01 Fan operation is extended 90 seconds after the call for heat ends Extended fan operation in coolinga 20 00 No extended fan operation after the call for cool ends 01...

Страница 6: ...nAuto System Fan Room Outdoor Em Ht Temporary Setting Wait Humid Aux Ht Remote Repl Batt M4844 M6792 TEST MODE NUMBER a Available on select models b T8524D is 48 F 9 C IMPORTANT Review the settings to confirm that they match the system INSTALLER SYSTEM TEST Use the Installer System Test to check the thermostat configurations and operation Refer to Table 3 for a list of the available system tests T...

Страница 7: ...n T8524C 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 cool turns off 30 Stage one cool and system fan turn off Fan Equipment System test T8524D only i 40 Change from cooling to fan equipment system test 41 Fan comes on 40 Fan turns off Key or Switch Operation System test IMPORTANT Test Numbers will only be displayed when t...

Страница 8: ...ill not come on Thermostat is not being powered Check that C terminal is connected to the system transformer Check for 24 Vac between C and R or RH 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 switch on the HVAC equipment is in the Off position set to the On position check wiring ...

Страница 9: ...pment replace any broken wires and tighten any loose connections If 24 Vac is present proceed with troubleshooting Thermostat minimum off time is activated Wait up to five minutes for the system to respond Enter Installer Setup mode number 33 Reconfigure minimum off time if required System selection is not set to Cool Set system selection to Cool Cooling setpoint is above room temperature Check co...

Страница 10: ...69 1055 1 10 T8524C D MULTISTAGE MICROELECTRONIC THERMOSTATS ...

Страница 11: ...69 1055 1 11 T8524C D MULTISTAGE MICROELECTRONIC THERMOSTATS ...

Страница 12: ...ATS Home and Building Control Honeywell Limited Honeywell Limitée 155 Gordon Baker Road North York Ontario M2H 3N7 Home and Building Control Honeywell Inc Honeywell Plaza P O Box 524 Minneapolis MN 55408 0524 69 1055 1 J H Rev 6 97 www honeywell com yourhome ...

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