T8600D, T8601D AND T8602D CHRONOTHERM
®

IV DELUXE PROGRAMMABLE THERMOSTATS

68-0164—1 2
ORDERING INFORMATION
When purchasing replacement and modernization products from your TRADELINE® wholesaler or distributor, refer to the
TRADELINE® Catalog or price sheets for complete ordering number.
If you have additional questions, need further information, or would like to comment on our products or services, please write or
phone:
1. Your local Home and Building Control Sales Office (check white pages of your phone directory).
2. Home and Building Control Customer Logistics
Honeywell Inc., 1885 Douglas Drive North
Minneapolis, Minnesota 55422-4386
In Canada—Honeywell Limited/Honeywell Limitée, 35 Dynamic Drive, Scarborough, Ontario M1V 4Z9.
International Sales and Service Offices in all principal cities of the world. Manufacturing in Australia, Canada, Finland, France,
Germany, Japan, Mexico, Netherlands, Spain, Taiwan, United Kingdom, U.S.A.
SPECIFICATIONS
IMPORTANT
The specifications given in this publication do not
include normal manufacturing tolerances. Therefore,
this unit might not exactly match the listed
specifications. This product is tested and calibrated
under closely controlled conditions, and some minor
differences in performance can be expected if those
conditions are changed.

Thermostat Models

T8600, T8601 and T8602 Thermostats provide features listed
in Table 1.
Electrical Rating (Nominal Range):
24 Vac, 50/60 Hz.
20 to 30 Vac, 50/60 Hz.
Batteries:
Only T8602 models require batteries.
Loss of Power:
The thermostat will maintain programmed times and
temperatures for the life of the product. The clock and day
information is retained for a minimum of thirty minutes.
System Current Load Ratings:
6 VA maximum at 30 Vac, 50/60 Hz.
Output Relay Load Rating:
See Table 2.
Temperature:
Ratings:
Operating Ambient: 40°F to 110°F (4°C to 43°C).
Shipping: -30°F to +150°F (-34°C to +65°C).
Display Accuracy: ±1°F (±0.5°C).
Setpoint:
Range:
Heating: 40°F to 90°F (4.5°C to 32°C).
Cooling: 45° F to 99°F (7°C to 35°C)
Differential: 3°F (1.5°C).
Default Settings: see Table 3.
Minimum Stage Operation Time:
Minimum Off (Heat and Cool ): factory setting 5 minutes;
option 0 to 5 minutes.
Humidity Ratings:
5% to 90% RH, noncondensing.
Clock Accuracy:
+1 minute per month.
System Changeover System
Selection Fan
Selection Comments
T8600 (powered by either the heating or cooling system)
D Heat-Cool Automatic Heat-Off-Cool-Auto On-Auto System and fan selections are done by keyboard.
T8601 (powered by common wire to supply power)
D Heat-Cool Automatic Heat-Off-Cool-Auto On-Auto System and fan selections are done by keyboard.
T8602 (powered by batteries)
D Heat-Cool Automatic Heat-Off-Cool-Auto On-Auto System and fan selections are done by keyboard.
Table 1. Thermostat Features.