Honeywell 2000 Series Product Data page 6

C7031B,D,G,J C7041B,C,D,F,J,K,P,R SERIES 2000 ELECTRONIC TEMPERATURE SENSORS
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
INCLUDE)
SUPPORTS (2)
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.
63-2590—3
SENSING ELEMENTS (4)
PLASTIC
TIES (5)
DUCT M8929A
6
SENSOR
GROMMET
(NOT FURNISHED)
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
1
WITH SENSING
ELEMENTS (4 OR 9)
SENSOR
DUCT
SUPPORTS (2)
1 NUMBER OF ELEMENTS DEPENDS
ON LENGTH OF COPPER TUBING.
Fig. 12. Duct cross section showing method of installing
C7041R Averaging Electronic Sensor.
IMPORTANT
To ensure that the C7041R senses average duct tem-
perature, position the temperature elements approxi-
mately 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.
SENSING ELEMENTS (4)
M8928A
DUCT
PLASTIC
TIES (5)
M22820