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T8624D CHRONOTHERM
®
IV DELUXE PROGRAMMABLE THERMOSTAT
68-0166—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 Relations
Honeywell, 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 Model
T8624D Thermostats provide features listed in Table 1.
Table 1. Thermostat Features.
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 (7°C to 31°C)
Cooling: 48°F to 99°F (9°C to 37°C).
Differential: 3°F (1.5°C).
Default Settings: see Table 3.
Table 3. Default Setpoints.
Changeover
System
Selection
Fan
Selection Comments
Automatic Heat-Off-
Cool-Auto
On-Auto System and fan
selections are done
by keyboard.
Electrical Rating (Nominal Range):
24 Vac, 50/60 Hz.
20 to 30 Vac, 50/60 Hz.
Batteries:
No batteries required.
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 Draw:
See Table 2.
Table 2. Maximum Amps at 30 Vac.
Relay Running (A) Inrush (A)
Fan 0.5 2.5
Heat (all stages) 1.5 3.5
Cool (all stages) 1.5 7.5
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
Minimum Stage Operation Time:
Minimum On (Heat and Cool) (select models): factory
setting 2 minutes; option 0 minutes.
Minimum Off (Cool and Heat Pump): factory setting
2 minutes; option 0 minutes.
Humidity Ratings:
5% to 90% RH, noncondensing.
Clock Accuracy:
+1 minute per month.
Finish:
Taupe or Premier White® color.