62-0267-09
TR21, TR22, TR23, and TR24 Wall
Modules
INSTALLATION INSTRUCTIONS
FEATURES
The TR21, TR22, TR23, and TR24 family of wall modules
include:
• Models with setpoint adjustment.
• Models with humidity output.
• Models with occupied/unoccupied override (bypass)
with LED.
• Models with 3-position (auto/0/1) or 5-position
(auto/0/1/2/3 speed) fan switch.
ONWORKS
•L
and TR21-A models.
• Locking cover on all models.
• Operating range 45° to 99° F (7° to 37° C).
• Models (TR22 and TR23) with user-selectable
temperature setpoint dials in Fahrenheit, Celsius, and
Relative (- to +).
®
bus jack on all models except the TR21
PRODUCT DESCRIPTION
The TR21, TR22, TR23, and TR24 are a family of direct-wired
wall modules for use with:
— Spyder Unitary Controllers: PUL, PVL
— Excel 10 W7750, W7751
controllers
— Honeywell Excel 800, 600, 500, 100, and 80 (all fully
programmable) controllers
— W7761 Controller
— ComfortPoint LON Controllers: CP-UL, CP-VL
All models have a space temperature sensor. Some models
have a temperature dial, setpoint adjustment, L
jack, override (bypass) with LED, and fan switch.
NOTE: Refer to the TR21, TR22, TR23, and TR24 Wall
a
The TR21, TR22, TR23, and TR24 wall modules are not
compatible with W7751A,C,E,G Controllers.
Modules – Specification Data, form 63-1321, for
specific model features and additional information.
a
, W7752, and W7753
ONWORKS bus
SPECIFICATIONS
Models: For specific model information, see TR21, TR22,
TR23, and TR24 Wall Modules – Specification Data,
form 63-1321.
Environmental Ratings:
• Operating Temperature: 45° to 99° F (7° to 37° C).
• Shipping Temperature: -40° to 150° F (-40° to 65.5° C).
Accessories: 50007298-001 (pack of 12) medium, cover
plate; 6-7/8 x 5 in. (175 x 127 mm).
Approvals:
Temperature Sensor
TR21, TR22, TR23, and TR24 20K Ohm Nonlinearized
Sensor:
All models are furnished with a 20K Ohm nonlinear NTC
temperature sensor that follows a specific temperature
resistance curve. See Fig. 1 on page 2.
NOTE: The TR21-A wall module model has two (2) 20K
CE; UL94 plastic enclosure; FCC Part 15, Class B
Ohm nonlinear NTC temperature sensors in parallel,
which provide 10K NTC temperature sensing
necessary for averaging.
TR21, TR22, TR23, AND TR24 WALL MODULES
CAUTION
TEMPERATURE (DEGREES)
o
F
30
40 50 60 70
80
90
100
110
0
10
20
30
40
RESISTANCE (OHMS)
20K OHM AT
77
o
F (25oC)
80K
70K
60K
50K
40K
30K
20K
10K
o
C
M5874A
Fig. 1. Temperature vs. Resistance for Nonlinear Sensor.
Communications
All wall modules (except the TR21 and TR21-A models) have
a L
ONMARK
plug must be removed in the field, and terminals 3 and 4 wired
according to the installation instructions.
The recommended wire size for the LONMARK® bus is Level
IV, 22 AWG (0.34 sq.mm) plenum or non-plenum rated,
non-shielded, twisted pair, solid conductor wire.
®
bus communications port. If needed, the jack
IMPORTANT
All wiring must comply with local electrical codes
and ordinances or as specified on installation wiring
diagrams.
— Wall module wiring can be sized from 16 to 22 AWG
(1.31 to 0.33 sq. mm) depending on the application.
— The maximum length of wire from a device to a wall
module is 1000 ft. (305 m).
— Twisted pair wire is recommended for wire runs longer than
100 ft. (30.5 m).
INSTALLATION
Mount the wall module on 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
wall module on an outside wall, on a wall containing water
pipes, or near air ducts. Avoid locations that are exposed to
discharge air from registers or radiation from lights,
appliances, or the sun. See “Cover Disassembly” on page 3.
The wall module can be mounted on a wall, on a standard
utility conduit box using No. 6 (3.5 mm) screws or on a 60 mm
wall outlet box (see Fig. 3). When mounting directly on a wall,
use the type of screws appropriate for the wall material.
STANDARD UTILITY CONDUIT BOX
SUBBASE
NO. 6 SCREW
FRONT COVER
TEMPERATURE DIAL,
70
80
60
LON CONNECTOR,
SHOWN WITH PROTECTIVE CAP IN PLACE
(NOT AVAILABLE ON TR21 AND TR21-A MODELS)
FAHRENHEIT DIAL SHOWN
(TR22 AND TR23 MODELS ONLY)
LED (TR23 AND TR24 MODELS ONLY)
BYPASS (OVERRIDE) BUTTON
(TR23 AND TR24 MODELS ONLY)
FAN SWITCH, 3 OR 5 POSITION
DEPENDING ON MODEL
(TR22, TR23, AND TR24 MODELS ONLY)
LOCKING TAB SLOT (X2)
Fig. 2. Wall Module Features (TR23-F Shown).
BEFORE INSTALLATION
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.
62-0267—09 2
M28125
60 mm WALL
OUTLET BOX
SUBBASE
3.5 mm SCREW
FRONT COVER
M28126
Fig. 3. Mounting on Standard Utility Conduit Box or
60 mm Wall Outlet Box (TR23 Shown).
TR21, TR22, TR23, AND TR24 WALL MODULES
CAUTION
70
55
60
65
70
75
80
85
15
20
25
°F
°C
+
–
M25482
2 1/4 (57)
3/16 (5)
1 3/16 (31)
STANDARD
UTILITY
CONDUIT
BOX (2 X 4)
MOUNTING
HOLES
60
80
INSIDE OF
FRONT
COVER
TEMPERATURE LIMIT
SCREW POSITION (X12)
NOTE: IF DESIRED, INSERT THE
TWO SETPOINT SCREWS INTO
THE DESIRED POSITIONS.
2 3/8 (60)
9/16 (14)
4 13/16 (122)
3 (76)
1 1/2 (38)
7/8 (22)
3. Insert the wire in the required terminal location and
tighten the screw to complete the termination.
4. Review and verify the terminal connection wiring and
DIP switch settings illustrated in Table 1 on page 4.
Fig. 4. Wall Module Subbase Dimensions in Inches (mm)
and Temperature Limit Set Screw Locations (TR23
Shown).
Cover Disassembly
A snap-fit locking mechanism is used to attach the cover of
the wall module to its subbase. To disassemble the cover from
the subbase:
1. Insert a thin, flat blade screwdriver into each of the two
slots at the bottom of the module to release the two
locking tabs. See Fig. 2 on page 2.
2. Tilt the cover out and away from the subbase to release
the top two locking tabs.
3. To change the dial (e.g. from Fahrenheit to Celsius)
release the two tabs on the inside of the front cover and
remove the old dial.
Wiring
Attach the wires from the device sensor terminals to the
appropriate wall module terminals. See Table 1 on page 4.
NOTE: Wire the Lon connection (terminals 3 and 4) using
Level IV 22 AWG (0.34 mm
2
) plenum or non-plenum
rated, unshielded, twisted pair, solid conductor wire.
Wiring Examples
Table 1 on page 4 illustrates DIP switch settings and terminal
connections for the wall modules. Refer to the TR21, TR22,
TR23, and TR24 Wall Modules – Specification Data, form
63-1321, for additional DIP Switch information.
IMPORTANT
SW 2 on DIP Switch S2 is used for factory calibration
of the temperature setpoint potentiometer.
Depending on calibration, this switch may be set in
either the On or Off position.
DO NOT change the position of this switch.
NOTES:
1. The TR21 and TR22 models do not use DIP
Switch S1 and S3.
2. DIP Switch S1 is used only on the humidity
models, TR21-H and TR23-H.
3. Models TR21 and TR21-A use terminals 1 and 2
only. Model TR21-J uses terminals 1, 2, 3, and 4
only.
1.
1/2
(13)
Fig. 5. Attaching Two Wires (20 to 22 AWG) to Wall Module
STRIP 1/2 IN.
(13 MM) FROM
WIRES TO BE
ATTACHED AT
ONE TERMINAL.
TWIST WIRES
2.
TOGETHER
WITH PLIERS
(A MINIMUM OF
THREE TURNS).
CONTROLLER OR
WALL MODULE
E-BUS CONNECTOR
TERMINALS
3.
CUT TWISTED END OF WIRES TO
3/16 IN. (5 MM) BEFORE INSERTING
INTO TERMINAL AND TIGHTENING
SCREW. THEN PULL ON EACH WIRE
IN ALL TERMINALS TO CHECK FOR
GOOD MECHANICAL CONNECTION.
Terminals.
M11413
Improper Electrical Contact Hazard.
Wiring Wall Modules
Screw type terminal blocks are designed to accept
no more than one 16 AWG (1.31 sq. mm)
conductor.
Connect multiple wires that are 16-18 AWG
(1.31-0.82 sq. mm) with a wire nut. Include a pigtail
with this wire group and attach the pigtail to the
individual terminal block.
Wire the terminal block as follows:
1. For single wires, strip 3/16 in. (5 mm); for multiple wires
going into one terminal, strip 1/2 in. (13 mm) insulation
from the conductor.
2. If two or more wires (20 to 22 AWG only) are being
inserted into one terminal, twist the wires together
before inserting. See Fig. 5.
Attaching the Cover
When all wiring is complete, attach the cover of the Wall
Module as follows:
1. Optional: For models with a temperature dial, insert the
two setpoint screws into the inside of the cover to set
the desired temperature range limit. See Fig. 4.
2. Press the cover straight down onto the subbase until it
snaps into place.
3. For models with a temperature dial, insert the desired
dial through the opening in the cover. Align the keyed
shaft on the knob with the keyed slot into the fitting on
the subbase, then press down until it snaps into place.
3 62-0267—09
TR21, TR22, TR23, AND TR24 WALL MODULES
M3 1110
DIP SWITCH S3
(TR23 and TR24 ONLY.)
ON
SW1 SW2 SW3
DIP SWITCH S2
ON
SW1 SW2
DIP SWITCH
S1
ON
SW1 SW2
1
DIP SWITCH S1 FOR HUMIDITY MODELS ONLY.
1
DO NOT CHANGE THIS
SWITCH POSITION.
Wiring and DIP switch settings:
See Table 1 to determine DIP switch positions and terminal usage for each controller.
Table 1. DIP Switch Settings and Terminal Connections.
Controller Model(s) TR23-TR24 DIP Switch Settings TR22-TR24 Terminal Connections
No fan switching from sensor
XL1O:
W7750, W7751, and W7752
Spyder: PUL, PVL
T7350: Use +/- offset knob
only!
DIP SWITCH
ON
S1
1
SW1 SW2
DIP SWITCH S1 FOR HUMIDITY MODELS ONLY.
1
ON
SW1 SW2
ON
SW1 SW2 SW3
NOTE: These switch positions are the factory
default settings for non-fan models.
DIP SWITCH S2
DO NOT CHANGE THIS
SWITCH POSITION.
DIP SWITCH S3
(TR23 AND TR24 ONLY.)
M28128
NOT USED ON TR24
SENSOR
SETPT
LON +
LON -
GND
111109876543212
LED
NOT USED ON TR22
OVERRIDE
M28133
Fan switching from sensor.
W7753
Spyder: PUL, PVL
XL5000:
Excel 600/500/100/80/50
• Used with TR23, TR24,
TR22-F5, TR23-F3, and
TR23-F5 models.
Any controller noted above.
For humidity models – TR21-H
and TR23-H only!
DIP SWITCH
ON
S1
1
SW1 SW2
DIP SWITCH S1 FO R HUMID ITY MO DELS ON LY.
1
ON
SW1 SW2
ON
SW1 SW2 SW3
DIP SWITCH S2
DIP SWITCH S3
(TR23 and TR24 ONLY.)
DIP SWITCH S1
0 TO 10 VDC 0 TO 5 VDC 4 TO 20 mA
ON
SW1 SW2
ON
SW1 SW2
DO NOT CHANGE THIS
SWITCH POSITION.
M28129
ON
SW1 SW2
M28132
NOT USED ON TR24
SENSOR
SETPT
LON +
LON -
GND
111109876543212
NOT USED
ON TR24
SENSOR
LON +
GND
111109876543212
111109876543212
REFER TO CONTROLLER SPECIFIC
WIRING ABOVE FOR TERMINAL
CONNECTIONS 1 THROUGH 10.
LON -
BYPASS RET
SETPT
LED
LED
NOT USED ON TR22
OVERRIDE
FAN
NOT USED ON TR22
OVERRIDE
FAN
HUM
M3111 2
M31111
24 VAC
M28137
62-0267—09 4
TR21, TR22, TR23, AND TR24 WALL MODULES
60
70
80
M28144
LED
OVERRIDE (BYPASS)
PUSHBUTTON
LED AND OVERRIDE (BYPASS) PUSHBUTTON AVAILABLE
ONLY ON THE TR23 AND TR24 MODELS.
1
1
TR22 and TR23 Setpoint Adjustment
For the TR22 and TR23 Wall Modules with a setpoint
adjustment, the controller must be programmed for the values
in Table 2 and Table 3.
Table 2. Setpoint Values.
Setpoint Value Program Setting
55°F (13°C) 2.773 V
65°F (18°C) 2.148 V
75°F (24°C) 1.345 V
85°F (29°C) 0.43 V
Table 3. Wall Module Setpoint Configuration.
Model Setpoint Resistance (Ohms)
°F Absolute 55°F 9574
85°F 1426
Relative -9°F offset from 70°F 9574
+9°F offset from 70°F 1426
°C Absolute 12°C 9945
30°C 1150
TR23-KL and TR23-H-KL
The TR23-KL and TR23-H-KL ship in packs of 20 and are
supplied without setpoint adjustment knobs. Knobs can be
ordered separately. See Table 4 for Knob model numbers.
Table 4. Knob Model Numbers
Model Description
KNOB-C Celsius scale knob (pack of 20)
KNOB-F Fahrenheit scale knob (pack of 20)
KNOB-O Relative scale knob (pack of 20)
Humidity Settings (DIP switch S1)
The humidity sensing control mode is set with this 2-position
DIP switch. Refer to Fig. 4 on page 3 for location of DIP switch
S1.
NOTE: These switch settings apply only to the TR21-H and
TR23-H models.
To change the setting, first disconnect the power, then set
SW1 and SW2 according to Table 5.
Table 5. DIP Switch S1 Settings.
Individual
Switches
12
Wall Module Model
Sensing
Control
0-10 Vdc OFF OFF
TR21-H
TR23-H
0-5 Vdc OFF ON
4-20 mA ON OFF
TR23 and TR24 Wall Module Override (Bypass) Pushbutton and LED Operation
When Used With Excel 10 Controllers:
The Excel 10 controllers (W7750, W7751, W7752, and
W7753) provide timed occupied and unoccupied temperature
setpoints for the Wall Module, see Fig. 6. The override
pushbutton is used to change the controller into the modes
shown in Table 6 and illustrated in Fig. 7 on page 6. The
override (bypass) LED displays the override status of the
controller.
Fig. 6. LED and override pushbutton locations
(TR23-F Wall Module shown).
5 62-0267—09
TR21, TR22, TR23, AND TR24 WALL MODULES
Table 6. Wall Module Operation.
Pushbutton Held Down Controller Model LED Status
0 to 1 second No override Off
1 to 4 seconds Timed occupied
On
override
4 to 7 seconds Unoccupied override Single blink per second
Longer than 7 seconds No override Off
not applicable Continuous occupied
a
override
a
Remote function, which is generated from the network.
RESET
NOT ASSIGNED
(LED OFF)
Two blinks per second
TR22-F5, TR23-F3, and TR23-F5 Wall Module Fan Switch
With the switch in the far left position (Auto), the fan
automatically runs at the speed determined by the controller
temperature control algorithm.
With the switch in the 0 position, the fan is off. Position 1 is fan
speed 1, etc.
The wall module fan speed switch overrides the temperature
control algorithm.
When Used With Excel 10 Controllers:
The Excel 10 Controllers (W7750, W7751, W7752, and
W7753) can be programmed so that the fan speed switch and
override button function the way that the application engineer/
programmer wants. See Table 7 for controller-programming
resistances. Switch 1 on Dip Switch S2 adds 10k Ohms
resistance when OPEN (for Excel 600-80 controllers) and
removes it when CLOSED (for Excel 10 controllers).
PRESS FOR
LESS THAN
ONE SECOND
PRESS FOR
LESS THAN
ONE SECOND
PRESS FOR ONE
TO FOUR SECONDS
OVERRIDE
OCCUPIED
(LED ON)
PRESS FOR FOUR
TO SEVEN SECONDS
UNOCCUPIED
(LED BLINK)
SEVEN SECONDS
PRESS FOR
MORE THAN
BYPASS
TIMEOUT
M28145
Fig. 7. Override pushbutton operation.
When Used With Excel 600/500/100/80/50
Controllers:
The application engineer/programmer can program the
override (bypass) and LED to operate in any manner desired.
The override (bypass) input is a dry contact, normally open,
momentary digital input when the wall module does not have a
fan switch. When a fan speed switch (basically a series of
resistances based on fan switch position) is present, the
override button is an analog input. See Table 4 for
resistances.
When Used With T7350 Thermostat:
TR21, TR21-A, TR21-H, TR22, TR23, and TR24 are the
models compatible with the T7350 thermostat. When using
with the T7350 thermostat be sure to use the relative +/- offset
knob only. The Celsius and Fahrenheit knobs will not work
properly with the T7350 Thermostat.
Table 7. Program Settings for Wall Modules with
Fan Switch using Excel 10 Controllers.
For Switch Position Resistance (Ohms) Comment
Auto 1861 ±119 Left most position
0 2686 ±127 Fan Off position
1 3866 ±139
2 3041 ±130
3 4601 ±146 Right most position
Override button closed Closed circuit
When Used With Excel 600/500/100/80/50
Controllers:
Excel 600/500/100/80 Controllers can be programmed so that
the fan speed switch and override button function the way that
the application engineer/programmer wants. See Table 8 for
controller-programming resistances. Switch 1 on Dip Switch
S2 adds 10k Ohms resistance when OPEN (for Excel 600-80
controllers) and removes it when CLOSED (for Excel 10
controllers).
Table 8. Program Settings for Wall Modules with
Fan Switch using Excel 600/500/100/80 Controllers.
For Switch Position Resistance (Ohms) Comment
Auto 11.861K ±119 Left most position
0 12.686K ±127 Fan Off position
1 13.866K ±139
2 13.04K ±130
3 14.60K ±146 Right most position
Override button closed 10K ±100
62-0267—09 6
TR21, TR22, TR23, AND TR24 WALL MODULES
7 62-0267—09
TR21, TR22, TR23, AND TR24 WALL MODULES
LONWORKS® is a registered trademark of Echelon® Corporation.
ONMARK
L
®
and the LonMark Logo are trademarks of the LonMark Association.
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
© 2009 Honeywell International Inc.
62-0267—09 E.K. Rev. 09-09
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