Product/Technical Bulletin TE-637DP-1
Issue Date 0316
24-9378- 3, Rev. C
TE-637DP-1 Surface-mount
Duct Temperature Sensor
The TE-637DP-1 provides temperature sensing in a
compact surface-mounted unit for use inside
economizer rooftop systems. The unit housing is a
durable plastic enclosure that installs easily to the duct
surface. A protective membrane prevents sensor
contamination due to dust, dirt, and insects.
The TE-637DP-1 has a thermistor temperature sensor
with a negative temperature coefficient, and a
reference resistance of 2.2k ohms at 77°F (25°C).
Figure 1: TE-637DP-1 Surface-mount Duct
Temperature Sensor
Features and Benefits
Protective Membrane Prevents sensor contamination
Quick-mount, 2-screw
Installation
Compact Enclosure for
Mounting Inside Ducts
© 2016 Johnson Controls, Inc. 1
Part No. 24-9378-3, Rev. C www.johnsoncontrols.com
Code No. LIT-216325
Reduces installation time
Designed for rooftop unit applications and
retrofits; enables surface-mount installation
roduct Overview
P
The TE-637DP-1 outputs temperature signals for use in
rooftop economizer applications. The TE-637DP-1 is
suitable for use with a Johnson Controls Direct Mount
Economizer (DME) Controller.
The TE-637DP-1 is a durable, yet cost-effective solution
for sensing temperature. It is housed in an easy-to-install
plastic enclosure, which speeds commissioning time and
reduces cost.
IMPORTANT: The TE-637DP-1 is intended to provide
an input to equipment under normal operating
conditions. Where failure or malfunction of the
TE-637DP-1 could lead to personal injury or property
damage to the controlled equipment or other property,
additional precautions must be designed into the
control system. Incorporate and maintain other
devices, such as supervisory or alarm systems or
safety or limit controls, intended to warn of or protect
against failure or malfunction of the TE-637DP-1.
IMPORTANT: Le TE-637DP-1 est destiné à
transmettre des données entrantes à un équipement
dans des conditions normales de fonctionnement.
Lorsqu'une défaillance ou un dysfonctionnement du
TE-637DP-1 risque de provoquer des blessures ou
d'endommager l'équipement contrôlé ou un autre
équipement, la conception du système de contrôle doit
intégrer des dispositifs de protection supplémentaires.
Veiller dans ce cas à intégrer de façon permanente
d'autres dispositifs, tels que des systèmes de
supervision ou d'alarme, ou des dispositifs de sécurité
ou de limitation, ayant une fonction d'avertissement ou
de protection en cas de défaillance ou de
dysfonctionnement du TE-637DP-1.
heory of Operation
T
The TE-637DP-1 has a thermistor temperature
sensor with a negative temperature coefficient, and
a reference resistance of 2.2k ohms at 77°F (25°C).
(See Figure 3.)
80,000
70,000
60,000
Resistance
(ohms)
50,000
40,000
30,000
20,000
10,000
0
-40
-20
-40
-290-1820-740460168027
Temperatu r e, °F (°C)
1003812049140
Figure 3: Temperature vs. Resistance
Relationship for the TE-637DP-1
60
imensions
D
3.0
76
3.0
76
2.5
63.5
2.5
63.5
3/16
5
Diameter
1.23
31
Figure 2: TE-637DP-1 Dimensions, in. (mm)
2 TE-637DP-1 Surface-mount Duct Temperature Sensor Product/Technical Bulletin
Table 1: Temperature vs. Resistance
Temperature Resistance
F C
-40 -40 75466
-30 -34 52571
-20 -29 37116
-10 -23 26539
0 -18 19208
10 -12 14062
20 -7 10408
30 -1 7784
40 4 5880
50 10 4484
60 16 3450
70 21 2678
80 27 2095
90 32 1652
100 38 1313
110 43 1051
120 49 847
130 54 687
140 60 561
nstallation
I
(ohms)
ocation Considerations
L
The sensor must be mounted inside a duct or
economizer rooftop system.
Orientation: The sensor must be mounted on a
flat surface in a vertical, upright position. (See
Figure 4.)
Placement: Mount the unit at least eight feet
downstream from sources of heat or humidity
and away from areas with no air flow.
IMPORTANT: Do not install this TE-637DP-1 in
condensing, wet, or damp environmeners.
Moisture may cause damage to the TE-637DP-1.
ounting
M
To mount the TE-637DP-1:
1. Using the sensor as a template, mark the
location of the two self-tapping screws.
2. Use a drill with an 1/8 in. bit to drill two holes in
the duct.
3. Attach the sensor to the duct using a 1/4 in. nut
driver and the two included No. 6 sheet metal
screws. (See Figure 4.)
Tools Needed
drill with 1/8 in. drill bit
1/4 in. nut driver
Note: The sensor must be mounted in an upright
position.
TE-637DP-1 Surface-mount Duct Temperature Sensor Product/Technical Bulletin 3
Self-tapping
Screws (2)
Duct
Figure 4: TE-637DP-1 Mounting
iring
W
!
WARNING: Electrical Shock Hazard.
Disconnect the power supply before making
electrical connections. Contact with
components carrying hazardous voltage can
cause electric shock and may result in severe
personal injury or death.
AVERTISSEMENT: Risque de décharge électrique.
Débrancher l'alimentation avant de réaliser
tout branchement électrique. Tout contact
avec des composants conducteurs de
tensions dangereuses risque d'entraîner une
décharge électrique et de provoquer des
blessures graves, voire mortelles.
heckout
C
After installation and wiring are complete, apply
power and make an operational check as shown in
the appropriate controller documentation.
epair and Replacement
R
Field repairs must not be made. To obtain a
replacement, contact the nearest Johnson Controls
representative.
rdering Information
O
To order a duct-mount temperature sensor, contact
your local Johnson Controls representative and
specify product code number TE-637DP-1.
Table 2: Accessories
Product Code
Number
ACC-BRKT-100
Description
Mounting Bracket for mounting
the sensor perpendicular
to the duct;
3.25 H x 3.62 W x 0.75 in. D
(83 x 92 x 19 mm)
IMPORTANT: Make all wiring connections in
accordance with the National
Electrical Code and local
regulations.
To wire the TE-637DP-1:
1. Route the wires from the controller to the
TE-637DP-1. Use of No. 18 AWG wire is
recommended.
2. Connect the wires to the appropriate terminals of the
wiring block. (See Figure 5 and refer to the
appropriate controller documentation.)
Controller
TEMP
COM
Figure 5: Typical TE-637DP-1 Wiring
4 TE-637DP-1 Surface-mount Duct Temperature Sensor Product/Technical Bulletin
TE-637DP-1
TEMP
TEMP
ACC-CBL-100
Wiring Harness, 53 in. (1.3 m)
pecifications
S
Product TE-637DP-1 Surface-mount Duct Temperature Sensor
Reference Resistance 2.2k ohms at 77°F (25°C)
Resistance Change Nonlinear, negative temperature coefficient
Accuracy 0.9°F (0.5°C) in the range of 32 to 158°F (0 to 70°C)
Ambient Operating
Conditions
Survival Operating
Conditions
Ambient Storage
Conditions
Terminal Connections 1/4 in. (6.35 mm) male spade
Acceptable Wire Gauge 16 to 24 AWG wire (18 AWG wire recommended)
Dimensions (H x W x L) 3.00 x 3.00 x 1.23 in. (76 x 76 x 31 mm)
Shipping Weight 0.50 lb (0.23 kg)
The performance specifications are nominal and conform to acceptable industry standards. For application at conditions beyond
these specifications, consult the local Johnson Controls office. Johnson Controls, Inc. shall not be liable for damages resulting from
misapplication or misuse of its products.
32 to 131°F (0 to 55°C)
0-100% RH, 85°F (29.4°C) maximum dew point
-22 to 140°F (-30 to 60°C)
0 to 100% RH, 85
-40 to 140°F (-40 to 60°C)
0-100% RH, 85
°F (29.4°C) maximum dew point
°F (29.4°C) maximum dew point
European Single Point of Contact: NA/SA Single Point of Contact: APAC Single Point of Contact:
JOHNSON CONTROLS
WESTENDHOF 3
45143 ESSEN
GERMANY
JOHNSON CONTROLS
507 E MICHIGAN ST
MILWAUKEE WI 53202
USA
JOHNSON CONTROLS
C/O CONTROLS PRODUCT MANAGEMENT
NO. 22 BLOCK D NEW DISTRICT
WUXI JIANGSU PROVINCE 214142
CHINA
Building Efficiency
507 E. Michigan Street, Milwaukee, WI 53202
Metasys® and Johnson Controls® are registered trademarks of Johnson Controls, Inc.
All other marks herein are the marks of their respective owners. © 2016 Johnson Controls, Inc.
TE-637DP-1 Surface-mount Duct Temperature Sensor Product/Technical Bulletin 5
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