Put UPC Code Here
C7031B,D,G,J
C7031B,
C7041B,C
C7031G,
C7041F
C7041P
C7041R
C7041K
C7031D,
C7041D
C7031J,
C7041J
C7041B,C,D,F,J,K,P,R
Series 2000 Electronic Temperature Sensors
PRODUCT DATA
FEATURES
• C7031D, C7041D for immersion mounting sense water
temperature.
• C7031G, C7041F sense outdoor air temperature and
are weatherproof for outdoor use (knockouts allow for
1/2 in. conduit connection).
• C7031J, C7041J,R sense average duct air temperature.
• C7031B, C7041B,C sense duct air temperature.
• C7041K with strap-on mounting senses water
temperature.
• C7041P senses air temperature.
• Solid state components not affected by dust or dirt.
APPLICATION
The Series 2000 C7031, C7041 Electronic Temperature
Sensors are designed for use with electronic controllers in
domestic or commercial heating and cooling systems.
SPECIFICATIONS
Compatability: Use Series 2000 C7031, C7041 Temperature
Sensors with Excel 10, 15, 80, 100, and 500 controllers.
Series 2000 C7031B,D,G,J sensors are compatible with
various Honeywell controllers. The C7031G2014 is
compatible with the T7350 Commercial Thermostat.
Dimensions: See Fig. 1 through 9.
Sensor Accuracy: ±0.36°F at 77°F (±0.2°C at 25°C) for 20K
ohm NTC sensors.
Accessories:
32006523-001 20K Probe: to allow replacement of old style
C7031D1062-1 with non-threaded well.
50001774-001 Stainless Steel 304 Well Assembly: 1/2 in.
external and internal NPT threading. Use with C7031D/
C7041D.
50001775-001 Well Adapter: Used with C7031D/C7041D to
allow threading sensor into previously-installed Series 1000
32005960-001 Well.
Contents
Application ........................................................................ 1
Features ........................................................................... 1
Specifications ................................................................... 1
Ordering Information ........................................................ 2
Installation ........................................................................ 5
Wiring ............................................................................... 8
Operation and Checkout .................................................. 8
63-2590—3
C7031B,D,G,J C7041B,C,D,F,J,K,P,R SERIES 2000 ELECTRONIC TEMPERATURE SENSORS
Table 1. Sensor Application Guide.
Element Max
Model Control Application
Element
Insertion Length
Element
Operating Range
C7031B Duct discharge air 6 in. (152 mm) -40° to 250°F
(-40°C to 121°C)
C7031D Hot or chilled water
(order immersion
5 in. (127 mm) 40° to 350°F
(4° to 115°C)
Ambient
Tempe rature
250°F (121°C)
370°F (187°C)
Sensor Resistance
1097 at 77° (25°C)
1097 at 77° (25°C)
well separately)
C7031G
-2006
C7031G
-2014
C7031J Duct discharge air
Outdoor air — -40° to 120°F
(-40° to 49°C)
Outdoor air —
c
-40° to 120°F
(-40° to 49°C)
12 ft (3.7m) 40° to 180°F
(averaging sensor
(4° to 82°C)
120°F (49°C) 1715 at 90°F (32°C) 2.2 (3.4)
120°F (49°C)
250°F (121°C)
3484 at 77°F (25°C)
1097 at 77° (25°C)
with 4 elements)
C7041B Duct discharge air 6 in. (152 mm) or
12 in. (305 mm)
C7041C Duct discharge air 18 in. (457 mm)
C7041D Hot or chilled water
5 in. (127 mm)
(order immersion
well separately)
C7041F Outdoor air —
C7041J Duct discharge air
(averaging sensor
with 4 elements)
C7041K Hot water (strap-on
mounting)
a
C7041P Space air
12 ft (3.7m)
—
—
-40° to 250°F
(-40° to 121°C)
250°F (121°C) 20K at 77°F (25°C) —
temperature (button
probe)
C7041R Duct discharge air
(rigid copper
12 ft (3.7m) or
24 ft (7.3m)
averaging sensor)
a
Not equipped with well; temperature sensed at surface of pipe.
b
Resistance increases as temperature increases.
c
Use with T7350 Commercial Thermostat.
d
Control Sensitivity in ohms per degree F (per degree C) for element operating range.
e
Nonlinear resistance decreases as temperature increases.
in Ohms Sensitivity
b
2.1 (3.9)
b
2.1 (3.9)
b
2.1 (3.9)
b
2.1 (3.9)
d
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 Honeywell Automation and Control Products Sales Office (check white pages of your phone directory).
2. Honeywell Customer Care
1885 Douglas Drive North
Minneapolis, Minnesota 55422-4386
In Canada—Honeywell Limited/Honeywell Limitée, 35 Dynamic Drive, Toronto, 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.
63-2590—3 2
C7031B,D,G,J C7041B,C,D,F,J,K,P,R SERIES 2000 ELECTRONIC TEMPERATURE SENSORS
2-5/16
(59)
15/16
(23)
1-11/16
(43)
4-3/16
(107)
3/4
(19)
4
(70)
1-11/16
(43)
C7031B: 5-11/16 (145)
C7041B: 11-5/8 (295)
C7041C: 17-5/8 (448)
M27010
1-13/16
(46)
7/16 (12)
1/8 NPSM (3)
3-7/8 (99)
1 (26)
11/16
(18)
5/8 (16)
M22821
5/16
(8)
SPACER SENSOR
1 (26)
7/8 (22)
3/16 (4)
3/8 IN.-16 THREAD
5.75 ± 0.25
(146)
1/8 INCH NPSM
STRAIGHT
THREADS
[8] 1/2 INCH
CONDUIT
KNOCKOUTS
SINGLE GANG
RACO COVER
[2] 1/64 (5) X 5/8 (16)
MOUNTING HOLES
FOAM PAD
1-59/64
(49)
2-19/64
(58)
1-5/32
(29)
3-57/64
(99)
2-3/32 (53)
4-3/16 (106)
M27006
Fig. 4. C7031B dimensions in in. (mm)
3-5/8 (91)
1 (25)
Fig. 1. C7041B,C dimensions in in. (mm).
NOTE: The C7041D uses the 50001774-001 Well Assembly.
1/2 NPSM
INTERNALLY
THREADED
Fig. 2. 50001774-001 Immersion Well dimensions in in.
See Fig. 5 for dimensions
(26)
1
FITS 1/2 NPT TAPPED HOLE
3/4
(19)
4 (102)
3/8 (10)
M27052
(mm)
5
(127)
2-1/4 (57)
3/4
(19)
8-5/16
(211)
Fig. 3. Dimensions of the C7041P in in. (mm)
7/8
(22)
M22132
Fig. 5. C7031G, C7041F dimensions in in. (mm).
3 63-2590—3
C7031B,D,G,J C7041B,C,D,F,J,K,P,R SERIES 2000 ELECTRONIC TEMPERATURE SENSORS
2-5/16
(59)
15/16
(23)
1-11/16
(43)
4-3/16
(107)
3/4
(19)
4
(70)
1-11/16
(43)
M22818
1-13/16
(46)
7/16 (12)
1/8 NPSM (3)
3-7/8 (99)
DEPENDING ON THE MODEL, THE ELEMENT LENGTH IS EITHER 12 FT (366 CM) OR 24 FT (732 CM).
1
1
1-11/16
(43)
6-11/16 (170)
2-5/16
(59)
4-3/16
(107)
(70)
1-11/16
(43)
4
5 (127)
1/2 NPSM (13)
M22596
Fig. 6. C7031D, C7041D dimensions in in. (mm)
1/4
(6)
Fig. 7. C7041R dimensions in in. (mm).
63-2590—3 4
C7031B,D,G,J C7041B,C,D,F,J,K,P,R SERIES 2000 ELECTRONIC TEMPERATURE SENSORS
CAUTION
2-5/16
(59)
1(25)
1-11/16
(43)
4-3/16
(107)
4 THERMISTORS PLACED
ON A 12 FOOT (3.7M) WIRE.
4
(70)
1-11/16
(43)
M22133
4-3/16 (107)
1-1/2
(38)
1-1/2
2-5/16
(59)
2-5/16
(59)
(38)
9/16 (14)
1-11/16
(43)
1-1/4
(32)
7-1/8 (182)
5 (127)
1
4-3/16
(107)
MAXIMUM PIPE DIAMETER SHOWN.
1
MINIMUM PIPE DIAMETER: 1-5/8 (41)
(70)
4
Fig. 8. C7041K dimensions in in. (mm).
2. Check the ratings given in the instructions and on the
3. Installer must be a trained, experienced service
4. After installation is complete, check out product
Mounting
The method of mounting depends on the particular application
of the C7041 Temperature Sensor. The following procedures
include outdoor, duct, immersion well and strap-on
applications. Also refer to the instructions for the electronic
control.
COPPER PLATE
FOAM PAD
M22134
product to make sure the product is suitable for your
application.
technician.
operation as provided in these instructions.
Electrical Shock or Equipment Damage Hazard.
Can shock individuals or short equipment
circuitry.
Disconnect power supply before installation.
Fig. 9. C7031J, C7041J dimensions in in. (mm).
INSTALLATION
When Installing this Product...
1. Read these instructions carefully. Failure to follow them
could damage the product or cause a hazardous
condition.
Outdoor Mounting (C7031G, C7041F)
The C7031G and C7041F sense outdoor air temperature.
Mount this control where it can sense average outdoor air
temperature. Normally, the north side of a building provides a
suitable location.
NOTE: C7031G and C7041F are weatherproof for outdoor
use. Knockouts allow for 1/2 in. conduit connection.
1. Remove and set aside the wiring box cover.
2. Mount the sensor to standard 1/2 in. conduit.
NOTE: Mount sensor so that the element points down.
3. Make wiring connections using two wire nuts.
4. Reattach the wiring box cover.
5 63-2590—3
C7031B,D,G,J C7041B,C,D,F,J,K,P,R SERIES 2000 ELECTRONIC TEMPERATURE SENSORS
M8929A
SENSING ELEMENTS (4)
DUCT
GROMMET
(NOT
INCLUDE)
SENSOR
SUPPORTS (2)
PLASTIC
TIES (5)
A
Duct Mounting
The C7031B, C7031J, C7041B,C,J can be mounted in a duct
to sense air temperature.
IMPORTANT
Select a spot for the sensor where it will be exposed
to average duct air temperature. Avoid locations
where stratification can cause sensing errors.
C7041B,C MOUNTING
1. Cut a hole in the duct just large enough to accept the
sensing element.
2. Use the sensor case to mark the locations of the pilot
holes for the mounting screws.
3. Drill the pilot holes and fasten the sensor to the duct.
C7031J, C7041J MOUNTING
SENSOR
GROMMET
(NOT FURNISHED)
SENSING ELEMENTS (4)
M8928
DUCT
Fig. 11. Duct cross section showing method of installing
C7031J/C7041J in a multizone system.
C7041R MOUNTING
1. Install two supports inside the duct to hold the
averaging element.
2. Cut a 7/8 in. (22 mm) hole in the side of the duct.
3. Insert the averaging element into the duct through the
hole.
4. Fasten the terminal box to the outside of the duct and
thread the element through the hole and into the duct.
5. Use plastic wire ties to fasten the element to the
supports. Seal the hole around the element with a rubber
grommet.
6. Secure the end of the element to the duct on the
support to prevent continuous flexing or abrasion.
COPPER TUBING
WITH SENSING
ELEMENTS (4 OR 9)
SENSOR
1
Fig. 10. Duct cross section showing method of installing
C7031J, C7041J Averaging Electronic Sensor.
1. Install two supports inside the duct to hold the averaging
element.
2. Cut a 7/8 in. (22 mm) hole in the side of the duct to insert
the averaging element.
3. Fasten the terminal box to the outside of the duct and
thread the element through the hole and into the duct.
4. Use plastic wire ties to fasten the element to supports.
Seal the hole around the element with a rubber
grommet.
5. Secure the end of the element to the duct on the
support to prevent continuous flexing or abrasion.
IMPORTANT
To assure that the C7031J/C7041J senses average
duct temperature, position the temperature elements
approximately as shown in Fig. 10. Do not allow the
elements to touch or be close to the duct sides.
NOTE: When the sensor is used as a deck sensor in a
multizone system, be sure to space the elements
equally in the duct midstream as shown in Fig. 11.
Install one C7031J/C7041J just upstream from the cold deck
zone dampers and the other C7031J/C7041J upstream from
the hot deck zone dampers. Position the thermistors to sense
the average deck temperature.
PLASTIC
TIES (5)
DUCT
SUPPORTS (2)
1
NUMBER OF ELEMENTS DEPENDS
ON LENGTH OF COPPER TUBING.
M22820
Fig. 12. Duct cross section showing method of installing
C7041R Averaging Electronic Sensor.
IMPORTANT
To ensure that the C7041R senses average duct temperature, position the temperature elements approximately as shown in Fig. 12. Do not allow the elements
to touch or be close to the duct sides.
NOTE: When the sensor is used as a deck sensor in a multi-
zone system, be sure to space the elements equally
in the duct midstream as shown in Fig. 13.
Install one C7041R just upstream from the cold deck zone
dampers and the other C7041R upstream from the hot deck
zone dampers. Position the thermistors to sense the average
deck temperature.
63-2590—3 6
C7031B,D,G,J C7041B,C,D,F,J,K,P,R SERIES 2000 ELECTRONIC TEMPERATURE SENSORS
1/2 NPT (13)
M22135
SENSING ELEMENT
(SEALED IN STAINLESS STEEL
TUBE INSIDE OF INSERTION WELL)
SENSOR
1
NUMBER OF ELEMENTS DEPENDS
ON LENGTH OF COPPER TUBING.
COPPER TUBING WITH
SENSING ELEMENTS (4 OR 9)
DUCT
1
M22819
Fig. 13. Duct cross section showing method of installing
C7041R in a multizone system.
Immersion Well Mounting (C7031D, C7041D)
The C7031D Sensor includes an immersion well. The C7041D
Sensor does not include a well. For the C7041D, order the well
as an accessory (part no.: 50001774-001).
When used on a boiler, follow the manufacturer instructions for
location. If a tapped hole is not provided for the immersion well,
provide one as follows:
1. Drain boiler and drill a 23/32 in. (18 mm) hole at the
selected location.
2. Cut threads in the hole with a 1/2 in. (13 mm) by 14 NPT
tap.
In other installations, mount the immersion well in an elbow
with a heel outlet as shown in Fig. 14.
1. Drain the system, if you have not already done it, and
open the tapped hole.
2. Put pipe joint compound on the threads of the
immersion well and screw it into the tapped hole or
elbow, tightening it securely.
3. Refill the system and check for leaks.
Mount the C7031D/C7041D into the well:
NOTE: Mounting using previously installed Honeywell
wells (part no.: 32005960-001) requires an
adapter (part no.: 50001775-001).
1. When an adapter is required, first thread it into the well
no more than one or two turns.
2. Slide the sensor into the well.
3. Rotate the sensor to thread it tightly into the adapter and
the adapter tightly into the well.
Strap-On Mounting (C7041K)
Strap-on mounting is well-suited for retrofit applications where
installation costs can be reduced by not draining the system.
The C7041K Sensor mounts on metal pipes from 1-5/8 inch to
five inches in diameter using the straps supplied. Clean the
surface of the pipe where the sensor makes contact before
mounting (remove insulation from the pipe at the point of
installation if necessary). Thermal compound is recommended
with the strap-on C7041K Sensor. Locate the sensor on the
discharge pipe within 3 feet (0.9m) of the boiler. See Fig. 15.
SENSOR
COPPER PLATE MUST
MAKE GOOD CONTACT
WITH METAL PIPE
PIPE
WORM GEAR
M22136
Fig. 15. Strap-on mounting of C7041K Sensor.
NOTE: Insulation around the contact area increases sensor
accuracy.
Button Probe Mounting
The C7041P Button Probe Sensor (20K ohm NTC) design
simplifies mounting into a variety of standard structural
materials.
The locking nut can be used to secure the probe. See Fig. 17.
The plastic spacer helps insulate the probe from drywall, wood,
or other material in which the probe is mounted. See Fig. 18.
The spacer is sized to fit snugly into 1/2 in. metal conduit. See
Fig. 16.
NOTES:
— The plastic spacer is threaded for easy installation.
— Use of both the locking nut and spacer requires
cutting spacer to shorter length.
Fig. 14. Method of mounting C7031D/C7041D Sensor.
C7041P MOUNTING RECOMMENDATIONS
Determine the proper location based upon the following:
— Mount the probe to an inside wall approximately 54 in.
(1372 mm) from the floor (or in the specified location) to
allow exposure to the average zone temperature.
— Do not mount the probe to an outside wall, a wall containing
waterpipes, or near air ducts.
— Avoid locations exposed to register discharge air, or
radiation from lights, appliances, or the sun.
7 63-2590—3
C7031B,D,G,J C7041B,C,D,F,J,K,P,R SERIES 2000 ELECTRONIC TEMPERATURE SENSORS
CAUTION
CAUTION
M22797
WIRING
Fig. 16. Mounting sensor in conduit.
WALL
M22799
Fig. 17. Mounting sensor in wall with nut only.
WALL
Erratic System Operation Hazard.
Failure to follow proper wiring practices can
introduce disruptive electrical interference (noise).
Keep wiring at least one foot away from large inductive
loads such as motors line starters, lighting ballasts,
and large power distribution panels.
Shielded cable is required in installations where these
guidelines cannot be met.
Ground shield only to grounded controller case.
Electrical Shock or Equipment Damage Hazard.
Can shock individuals or short equipment
circuitry.
Disconnect power supply before installation.
IMPORTANT
1. All wiring must agree with applicable codes,
ordinances and regulations.
2. Do not mount sensor in incorrect environment.
3. Wire according to the applicable controller
instructions.
OPERATION AND CHECKOUT
Operation
The C7041 Temperature Sensors are designed for use with
XL500, XL100, XL50, XL15, XL10, and Honeywell LCBS
Controllers or any controller requiring 20K ohm NTC
non-linear input. As the temperature at the C7041 Sensor
increases, the resistance of the sensor decreases, causing
the controller to operate and offset the temperature change.
Checkout
Refer to the applicable controller instructions when checking
out the complete heating and cooling systems.
To check out the sensors, move the thermostat or remote
setpoint potentiometer below the temperature of the cooling or
M22798
Fig. 18. Mounting sensor in wall with spacer only.
Automation and Control Solutions
Honeywell International Inc. Honeywell Limited-Honeywell Limitée
1985 Douglas Drive North 35 Dynamic Drive
Golden Valley, MN 55422 Toronto, Ontario M1V 4Z9
customer.honeywell.com
® U.S. Registered Trademark
© 2006 Honeywell International Inc.
63-2590—3 J.Z. Rev. 08-07
heating medium. Watch the motor, valve or damper for the
correct movement.
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