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Honeywell Chronotherm T8601D Installation Instructions Manual

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T8601D Chronotherm® IV Deluxe
APPLICATION
The T8601 Chronotherm® IV Deluxe Programmable
Thermostat provides electronic control of 24 Vac single-
T8601
System
Changeover System Selection
D
Heat-Cool
Automatic
MERCURY NOTICE
If this control is replacing a control that contains
mercury in a sealed tube, do not place your old
control in the trash.
Contact your local waste management authority
for instructions regarding recycling and the
proper disposal of the old thermostat.
INSTALLATION
When Installing this Product...
1. Read these instructions carefully. Failure to follow
the instructions can damage the product or cause
a hazardous condition.
2. Check the ratings given in the instructions and on
the product to make sure the product is suitable for
your application.
® U.S. Registered Trademark
Copyright © 2002 Honeywell •
Programmable Thermostats
Table 1. Description of T8601 Thermostats.
Fan Selection
Heat-Off-Cool-Auto
• All Rights Reserved
INSTALLATION INSTRUCTIONS
stage heating and cooling systems. Refer to Table 1 for a
general description of the thermostat. All T8601
Thermostats require a common wire to supply power.
On-Auto
Use keyboard for system and fan selections
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 thermostat where it can be affected by:
— drafts, or dead spots behind doors and in corners.
— hot or cold air from ducts.
— radiant heat from sun or appliances.
— concealed pipes and chimneys.
— unheated (uncooled) areas such as an outside wall
behind the thermostat.
Comments
69- 1626
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Summary of Contents for Honeywell Chronotherm T8601D

  • Page 1 2. Check the ratings given in the instructions and on the product to make sure the product is suitable for your application. ® U.S. Registered Trademark Copyright © 2002 Honeywell • • All Rights Reserved 69- 1626...

  • Page 2: Wallplate Installation

    T8601D CHRONOTHERM® IV DELUXE PROGRAMMABLE THERMOSTATS 5 FEET [1.5 METERS] M10106 Fig. 1. Typical location of thermostat. Wallplate Installation 3. Remove the wallplate from the wall and drill two 3/16 in. holes in the wall (if drywall) as marked. For The thermostat can be mounted horizontally on the wall firmer material such as plaster, drill two 7/32 in.

  • Page 3: Mounting Thermostat

    T8601D CHRONOTHERM® IV DELUXE PROGRAMMABLE THERMOSTATS Mounting Thermostat THERMOSTAT 1. Engage tabs at the top of the thermostat and wall- plate. See Fig. 7. 2. Press lower edge of case to close and latch. HEAT COMPRESSOR COOL OUTDOOR NOTES: To remove the thermostat from the wall, first pull RELAY CONTACTOR DAMPER...

  • Page 4: System And Fan Settings

    T8601D CHRONOTHERM® IV DELUXE PROGRAMMABLE THERMOSTATS INCREASE TEMPERATURE SET RETURN TIMES SET LEAVE TIMES SET WAKE TIMES INCREASE TIME SETTING SETTING OR SCROLL AND SETPOINTS AND SETPOINTS AND SETPOINTS OR SCROLL FORWARD FORWARD THROUGH THROUGH INSTALLER SETUP INSTALLER SETUP OPTIONS AND SYSTEM TEST DECREASE TEMPERATURE SET CURRENT...
  • Page 5 T8601D CHRONOTHERM® IV DELUXE PROGRAMMABLE THERMOSTATS — To advance to the next Installer Setup, press the Time CAUTION key. — To change a setting, use the increase or decrease Equipment Damage Hazard. key. System running without fan can damage — To scroll the Installer Setup numbers backwards, equipment.
  • Page 6 T8601D CHRONOTHERM® IV DELUXE PROGRAMMABLE THERMOSTATS Table 3. Thermostat Installer Setup Options. Installer Setup Other Choices Number Factory-Setting (Press key to change) (Press Time Actual Select key to change) Display Description Display Description Setting Not used 17 and 18 — —...

  • Page 7: Setting Current Day And Time

    T8601D CHRONOTHERM® IV DELUXE PROGRAMMABLE THERMOSTATS IMPORTANT To start the self-test: Review the settings to confirm that they match the system. Press Run Program to exit the CAUTION Installer Setup. The thermostat has saved the Installer Setup changes and initiated a reset in Equipment damage can occur if the order to operate using the new settings.

  • Page 8: Thermostat Information

    T8601D CHRONOTHERM® IV DELUXE PROGRAMMABLE THERMOSTATS Table 5. Installer Self-Test Options. 4. Press the increase key again to display the soft- ware revision number (Example: 001=Revision Key to Test number 1). Press Number Description Cooling Equipment System Test Time Change from heating to cooling equipment system test Cool and system fan come on Cool and system fan turn off...
  • Page 9 T8601D CHRONOTHERM® IV DELUXE PROGRAMMABLE THERMOSTATS Table 6. Troubleshooting Guide. Symptom Possible Cause Action Display does not Thermostat is not being • Check that C terminal is connected to the system transformer. come on. powered • Check for 24 Vac between R and C terminals. —If missing 24 Vac: —...
  • Page 10 T8601D CHRONOTHERM® IV DELUXE PROGRAMMABLE THERMOSTATS Table 6. Troubleshooting Guide. Symptom Possible Cause Action Heating or cooling Heat or cool circuit is Add resistor in parallel with load or install interface relay. come on opening up or becoming momentarily and high impedance.
  • Page 11 T8601D CHRONOTHERM® IV DELUXE PROGRAMMABLE THERMOSTATS 69-1626...
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