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Honeywell Chronotherm IV T8602C Installation Instructions Manual

Deluxe programmable thermostats
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Deluxe Programmable Thermostats
APPLICATION
The T8602 Chronotherm® IV Deluxe Programmable
Thermostat provides electronic control of 24 Vac single-
stage heating and cooling systems. Refer to Table 1 for
T8602
System
Changeover
C
Heat-Cool
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. Dispose of properly.
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.
3. Installer must be a trained, experienced service
technician.
4. After completing installation, use these instruc-
tions to check out the product operation.
®U.S. Registered Trademark
Copyright © 2001 Honeywell •
Table 1. Description of T8602 Thermostats.
System
Selection
Manual
Heat-Off-Cool
• All Rights Reserved
T8602C Chronotherm
a general description of the thermostat. All T8602
thermostats are powered by batteries.
Fan
Selection
On-Auto
System and fan selections are done by
keyboard.
Location
Install the thermostat about 1.5m (5 ft) 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.
Wallplate Installation
The thermostat can be mounted horizontally on the wall
or on a 50.8 mm x 101.6 mm (2 in. x 4 in.) wiring box.
Position wallplate horizontally on the wall or on a
50.8 mm x 101.6 mm (2 in. x 4 in.) wiring box.
1. Position and level the wallplate (for appearance
only). The thermostat will function properly even
when not level.
INSTALLATION INSTRUCTIONS
Comments
®
IV
69-1567

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  Summary of Contents for Honeywell Chronotherm IV T8602C

  • Page 1 Selection Heat-Off-Cool On-Auto Location Install the thermostat about 1.5m (5 ft) 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.
  • Page 2 Fig. 2. Mounting the wallplate. 69-1567 1.5 METERS (5 FEET) Fig. 1. Typical location of thermostat. 2. Use a pencil to mark the mounting holes. See Fig. 2. 3. Remove the wallplate from the wall and drill two WALL 4.76 mm (3/16 inch) holes in the wall (if drywall) as marked.
  • Page 3: Mounting Thermostat

    ® T8602C CHRONOTHERM IV DELUXE PROGRAMMABLE THERMOSTATS Mounting Thermostat 1. Engage tabs at the top of the thermostat and 2. Press lower edge of case to close and latch. OUTDOOR NOTE: To remove the thermostat from the wall, first TEMPERATURE...
  • Page 4: System And Fan Settings

    DECREASE TIME SETTING OR SCROLL BACKWARD THROUGH INSTALLER SETUP AND SYSTEM TEST Fig. 6. T8602C key locations and descriptions. Fig. 7. Thermostat System and Fan key locations. NOTE: Always press the keys with your fingertip or INCREASE TEMPERATURE SET RETURN TIMES...
  • Page 5: Installer Setup

    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, system changeover and outdoor temperature display.
  • Page 6 Not used. Temperature display adjustment. Number 2 must be set to 1 to extend fan operation. 69-1567 Table 3. Thermostat Installer Setup Options. Factory-Setting Display Description — — Conventional applica- tions where equipment controls fan operation in heat mode.
  • Page 7: Installer System Test

    ® T8602C CHRONOTHERM IV DELUXE PROGRAMMABLE THERMOSTATS INSTALLER SYSTEM TEST Use the Installer System Test to check the thermostat operation. Refer to Table 4 for a list of the available system tests. To start the system test: Press and hold the increase the same time until 10 appears.
  • Page 8: Thermostat Information

    The Run Program key will not exit this test. Press Time Run Program key to exit. THERMOSTAT INFORMATION 1. Press the Time key to access the thermostat information. 2. Press the increase s key to display the production date code. The first two large digits are the month and the third digit is the last digit of the year (Example: 027 = February 1997).
  • Page 9: Outdoor Temperature Sensor (Select Models)

    — check if the system fuse is blown—replace the — check if the power switch on the HVAC equipment — check wiring between thermostat and HVAC — If 24 Vac is present, proceed with troubleshooting. Wait up to five minutes for the system to respond.
  • Page 10 Wait a minute after seeing the on indicator and then check the registers. Verify operation of heating or cooling equipment in self-test. Enter Installer Setup number 24 and set to 1. Thermostat must have OT terminals and a C7089B1000 installed. Refer to C7089B1000 installation instructions and check wiring between the thermostat and sensor.
  • Page 11 ® T8602C CHRONOTHERM IV DELUXE PROGRAMMABLE THERMOSTATS 69-1567...
  • Page 12 Home and Building Control Home and Building Control Honeywell Honeywell Limited-Honeywell Limitée 1985 Douglas Drive North 35 Dynamic Drive Golden Valley, MN 55422 Scarborough, Ontario M1V 4Z9 69-1567 G.H. 8-01 Printed in Taiwan R.O.C. www.honeywell.com/yourhome...