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T8611M
SPECIFICATIONS • ORDERING INFORMATION

Specifications

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, or specify—
1. Model number. 3. Remote temperature sensing, if desired.
2. Number of heat and cool stages desired.
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 Honeywell Home and Building Control Sales Office (check white pages of your phone directory).
2. Home and Building Control Customer Satisfaction
Honeywell inc., 1885 Douglas Drive North
Minneapolis, Minnesota 55422-4386 (612) 951-1000
In Canada—Honeywell Limited/Honeywell Limitée 740 Ellesmere Road, Scarborough, Ontario M1P 2V9. 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.

TRADELINE MODELS

TRADELINE models are selected and packaged to
provide ease of stocking and handling and also maximum replacement value.
TRADELINE models available are listed in Table 1.
TABLE 1—TRADELINE MODELS AVAILABLE.
Stages Changeover Switching
Thermostat Heat Cool Type System Fan Application Program
T8611M* 3 2 Automatic EM. HT.-HEAT-OFF- ON-AUTO Heat Pump 7-Day
AUTO-COOL
*Model available with separate sensor for remote temperature sensing.
LIGHT-EMITTING DIODES (LEDs):
SYSTEM LED (yellow) on thermostat lights during
thermostat heating and cooling ON cycles.
EM.HT. LED (red) on subbase lights when system
switch is in EM.HT. On some systems, light may
indicate need to switch to EM.HT. because of heat
pump problem.
AUX. HT. LED (green) on subbase lights when ther-
mostat is calling for operation of auxiliary heat.
CHECK LED (yellow) on subbase lights when an
equipment or system problem needs to be checked.
Consult heat pump literature to determine meaning.
VOLTAGE RATING: 15 to 30 Vac.
CURRENT RATING: 1.6A maximum, total per stage.
OPERATING HUMIDITY RANGE: 5 to 90 percent rela-
tive humidity, noncondensing.
OPERATING AMBIENT TEMPERATURE RANGE:
40° F to 110° F [4° C to 43° C].
SET POINT RANGE: 45° F to 88° F [7° C to 31° C].
CALIBRATION: Self-calibrating thermostat and thermo-
meter to ±1° F.
SHIPPING TEMPERATURE: -20° F to +120° F [-29° C
to +49° C].
CYCLES PER HOUR ADJUSTMENT:
Auxiliary heating—factory-set at 3 cph (adjustable to
6 cph for special systems); minimum off-time of five
minutes.
Nonauxiliary heating and cooling—factory-set (not
field adjustable); minimum off-time of five minutes.
FINISH: Beige matte with decorative brushed metal face-
plate.
DIMENSIONS: Thermostat (mounted on subbase)—7 in.
[178 mm] long, 5-5/16 in. [135 mm] high, 1-3/4 in.
[44 mm] deep. See Fig. 1 for subbase dimensions. See
Fig. 2 for remote sensor dimensions.
TYPICAL KEYPAD: See Fig. 3.
REPLACEMENT PARTS:
202905AA Remote Temperature Sensor.
220529 Replacement Door.
AAA alkaline batteries, available locally.
ACCESSORIES:
193121A Cover Plate Assembly. Includes cover plate,
adapter ring and screws; 6-9/10 i n. x 4- 3/4 in. [175
mm x 121 mm]. Covers marks left by old thermostat.
Allows mounting on vertical or horizontal outlet
box.
TG512 Universal Thermostat Guards. Includes clear or
opaque plastic or metal cover, ring base, opaque
plastic wallplate, tumbler lock with two keys.
TG586A Locking Cover.