Honeywell T651A, T694A, T694F, T694B, T694D User Manual 2
...
T451A, T651A, T694A,B,D,F
Line Voltage Thermostats
T451, T651, T694 Thermostats provide on-off
control of valves, fans, motors, contactors, electric
heat elements, duct furnaces and fan coil units in
heating/cooling systems. Switching subbases provide manual control of heating, cooling and fan.
Light Duty
■ T451A provides heating control only.
■ T651A provides heating and cooling control.
■ T694A,B,D,F supplied with switching subbase to pro-
vide manual control of heating, cooling and fan.
■ Q473A,B switching subbase available for T451A/
T651A.
■ Automatic cooling anticipator for 120, 208, 240 and
277 Vac.
T451A,
T651A
T694A
■ Thermostats use spst or spdt snap switches activated
by bimetal sensor.
■ T451A/T651A mount on standard vertical or horizontal junction box.
■ Options include adjustable range stops, locking cover,
concealed setpoint, locking setpoint, positive off control, cover thermometer.
T694B,D,F
CONTENTS
Specifications ................................................. 2
Ordering Information..................................... 2
Installation ..................................................... 4
Checkout......................................................... 7
1 63-2051—4J. H. • Rev. 9-92 • ©Honeywell Inc. 1992 • Form Number 63-2051—4
T451A, T651A, T694A,B,D,F
SPECIFICATIONS • ORDERING INFORMATION
Specifications
SUPER TRADELINE MODEL
TRADELINE models are selected and packaged to provide
ease of stocking, ease of handling and maximum replacement value. TRADELINE model specifications are the
same as those of standard models except as noted below.
SUPER TRADELINE MODEL AVAILABLE:
T651A2028 Light Duty Line Voltage Thermostat.
FEATURES:
— Temperature scale range 35° F to 95° F.
— Spdt switch breaks heating contacts and makes cooling
contacts on temperature rise.
— Automatic cooling anticipator for 120, 208, 240 and
277 Vac.
— Vertical faceplate with Fahrenheit scale and ther-
mometer.
— Horizontal faceplate with Fahrenheit scale and ther-
mometer.
—Blank vertical faceplate.
—Blank horizontal faceplate.
— Wallplate.
— Adjustable range stops.
— Locking cover screw.
STANDARD MODELS:
Model Changeover
Number Application System Switch Switch Fan Switch
T451A2007aHeating only. — — —
T451A2015 Heating only with positive OFF. — — —
T651A2028aHeating/cooling. — — —
T694A2002 Heating/cooling. OFF position breaks ON-OFF — HI-MEDIUM-LO
fan circuit.
T694B2001 Heating/cooling. OFF position breaks ON-OFF HEAT-COOL HI-MEDIUM-LO
cooling and fan circuits.
T694D2009 Heating/cooling. Heating circuits isolated ON-OFF HEAT-COOL HI-MEDIUM-LO
from cooling circuits. OFF position
breaks all control circuits except heat.
T694F2007 Heating/cooling. Heating circuits isolated ON-OFF HEAT-COOL HI-MEDIUM-LO
from cooling circuits. OFF position breaks
all power to fan and thermostat.
a
With thermometer.
Ordering Information
When purchasing replacement and modernization products from your TRADELINE® wholesaler or your distributor, refer to the
TRADELINE Catalog or price sheets for complete ordering number, or specify—
1. Order number.
2. Accessories, if desired.
3. Order additional components and system accessories separately.
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
Golden Valley, MN 55422-4386 (612) 951-1000
In Canada—Honeywell Limited/Honeywell Limitee, 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.
2
T451A, T651A, T694A,B,D,F
[48]
SPECIFICATIONS
ELECTRICAL RATINGS (A):
Voltage (Vac)
120 208/240/277
Full Load 8 4
a
Locked Rotor 48 24
a
Wider temperature differential ranges can occur when
used in cooling applications with current draws that are
more than four amps. If a wider differential range is
unacceptable, use a T6051 Heavy Duty Line Voltage
Thermostat for a smaller differential range.
Pilot Duty: 125 VA.
7.2A Resistive: heating contacts only.
TEMPERATURE SETTING RANGE: 35° F to 95° F [2° C
to 35° C] (with range stops removed).
STORAGE TEMPERATURE: -40° F to 150° F [-40° C to
66° C].
FIXED DIFFERENTIAL: 2° F [1° C].
SWITCHING ACTION:
T451: Spst. Contacts make on temperature fall.
T651: Spdt. Heating contacts break and cooling contacts
make on temperature rise.
T694: Spdt. Heating contacts break and cooling contacts
make on temperature rise.
FIELD WIRING CONNECTIONS: No. 10 screw terminals
on T451A/T651A; color-coded leads on T694 models.
DIMENSIONS: See Figs. 1 and 2.
FINISH: Brushed champagne gold and dark pewter face-
plate; beige and brown case.
UNDERWRITERS LABORATORIES INC.: Listed.
ACCESSORIES:
Q473A2006 Switching Subbase: Use with T651A for
HEAT-OFF-COOL manual system switching.
Q473B2005 Switching Subbase: Use with T451A/
T652A for AUTO/OFF switching in heating only or
cooling only applications.
220124A Faceplate vertical, Fahrenheit scale, with
thermometer.
a
220124B Faceplate vertical, Celsius scale, with ther-
mometer.
220124C Faceplate, horizontal, Fahrenheit scale, with
thermometer.
a
220124D Faceplate, horizontal, Celsius scale, with ther-
mometer.
220125A Faceplate, horizontal, Fahrenheit scale, with-
out thermometer.
220125B Faceplate, vertical, Fahrenheit scale, without
thermometer.
220125C Faceplate, horizontal, Celsius scale, without
thermometer.
220125D Faceplate, vertical, Celsius scale, without ther-
mometer.
220126A Faceplate, horizontal, blank (concealed setpoint,
without thermometer).
220126B Faceplate, vertical, blank (concealed setpoint,
without thermometer).
220213 Wallplate, covers old T451A/T651A wall marks
when installing new T451A/T651A.
a
a
a
199242 Wallplate, covers old T694 wall marks when
installing new T694.
Fig. 1—T451A, T651A mounting dimensions in in. [mm].
70
60
50
40
40 50 60 70 80 90
80
90
17
4
32
F
13
2
16
[70]
[114]
1
[22]
1
8
13
1
16
a
Supplied with SUPER TRADELINE model T651A.
1
[45]
15
16
[24]
3
4
15
1
32
[35]
COOL HEAT COM
1
[37]
9
16
[14]
3
[83]
1
8
[14]
M6130
9
32
17
32
3 63-2051—4
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