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.
®
LONWORKS bus jack on all models except the TR21
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 +).
PRODUCT DESCRIPTION
SPECIFICATIONS
The TR21, TR22, TR23, and TR24 are a family of direct-wired
wall modules for use with:
Models: For specific model information, see TR21, TR22,
TR23, and TR24 Wall Modules – Specification Data,
form 63-1321.
—
—
Spyder Unitary Controllers: PUL, PVL
Excel 10 W7750, W7751 , W7752, and W7753
a
Environmental Ratings:
controllers
•
•
Operating Temperature: 45° to 99° F (7° to 37° C).
Shipping Temperature: -40° to 150° F (-40° to 65.5° C).
—
Honeywell Excel 800, 600, 500, 100, and 80 (all fully
programmable) controllers
—
—
W7761 Controller
ComfortPoint LON Controllers: CP-UL, CP-VL
Accessories: 50007298-001 (pack of 12) medium, cover
plate; 6-7/8 x 5 in. (175 x 127 mm).
All models have a space temperature sensor. Some models
have a temperature dial, setpoint adjustment, LONWORKS bus
jack, override (bypass) with LED, and fan switch.
Approvals: CE; UL94 plastic enclosure; FCC Part 15, Class B
Temperature Sensor
NOTE: Refer to the TR21, TR22, TR23, and TR24 Wall
Modules – Specification Data, form 63-1321, for
specific model features and additional information.
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
Ohm nonlinear NTC temperature sensors in parallel,
which provide 10K NTC temperature sensing
necessary for averaging.
a
The TR21, TR22, TR23, and TR24 wall modules are not
compatible with W7751A,C,E,G Controllers.
62-0267-09
TR21, TR22, TR23, AND TR24 WALL MODULES
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.
3 (76)
1 1/2 (38)
9/16 (14)
1 3/16 (31)
NOTE: Wire the Lon connection (terminals 3 and 4) using
STANDARD
UTILITY
CONDUIT
BOX (2 X 4)
MOUNTING
HOLES
2
Level IV 22 AWG (0.34 mm ) plenum or non-plenum
rated, unshielded, twisted pair, solid conductor wire.
7/8 (22)
4 13/16 (122)
70
Wiring Examples
2 3/8 (60)
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
2 1/4 (57)
70
3/16 (5)
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.
TEMPERATURE LIMIT
75
65
INSIDE OF
FRONT
COVER
SCREW POSITION (X12)
25
NOTE: IF DESIRED, INSERT THE
TWO SETPOINT SCREWS INTO
THE DESIRED POSITIONS.
DO NOT change the position of this switch.
°C
8 5
–
+
5 5
°F
NOTES:
1.
2.
3.
The TR21 and TR22 models do not use DIP
Switch S1 and S3.
DIP Switch S1 is used only on the humidity
models, TR21-H and TR23-H.
Models TR21 and TR21-A use terminals 1 and 2
only. Model TR21-J uses terminals 1, 2, 3, and 4
only.
M25482
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.
1.STRIP 1/2 IN.
1/2
CONTROLLER OR
(13 MM) FROM
WALL MODULE
WIRES TO BE
(13)
E-BUS CONNECTOR
ATTACHED AT
TERMINALS
ONE TERMINAL.
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.
3. CUT TWISTED END OF WIRES TO
2.TWIST WIRES
TOGETHER
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.
WITH PLIERS
(A MINIMUM OF
THREE TURNS).
Wiring
Attach the wires from the device sensor terminals to the
appropriate wall module terminals. See Table 1 on page 4.
M11413
Fig. 5. Attaching Two Wires (20 to 22 AWG) to Wall Module
Terminals.
CAUTION
Improper Electrical Contact Hazard.
Screw type terminal blocks are designed to accept
no more than one 16 AWG (1.31 sq. mm)
conductor.
Attaching the Cover
When all wiring is complete, attach the cover of the Wall
Module as follows:
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.
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.
Wiring Wall Modules
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.
3
62-0267—09
TR21, TR22, TR23, AND TR24 WALL MODULES
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
DIP SWITCH
DIP SWITCH S2
ON
ON
NOT USED ON TR24
NOT USED ON TR22
S1
1
DO NOT CHANGE THIS
SWITCH POSITION.
XL1O:
SW1 SW2
SW1 SW2
W7750, W7751, and W7752
ON
DIP SWITCH S3
(TR23 AND TR24 ONLY.)
Spyder: PUL, PVL
SW1 SW2 SW3
DIP SWITCH S1 FOR HUMIDITY MODELS ONLY.
T7350: Use +/- offset knob
M28128
1
M28133
1
2
3
4
5
6
7
8
9
10 11 12
only!
NOTE: These switch positions are the factory
default settings for non-fan models.
NOT USED ON TR24
NOT USED ON TR22
DIP SWITCH
DIP SWITCH S2
ON
ON
S1
Fan switching from sensor.
1
DO NOT CHANGE THIS
SWITCH POSITION.
SW1 SW2
SW1 SW2
ON
DIP SWITCH S3
(TR23 and TR24 ONLY.)
W7753
SW1 SW2 SW3
DIP SWITCH S1 FOR HUMIDITY MODELS ONLY.
Spyder: PUL, PVL
1
2
3
4
5
6
7
8
9
10 11 12
M28129
1
M31112
ON
ON
DIP SWITCH
DIP SWITCH S2
NOT USED
ON TR24
NOT USED ON TR22
S1
XL5000:
1
DO NOT CHANGE THIS
SWITCH POSITION.
SW1 SW2
SW1 SW2
Excel 600/500/100/80/50
DIP SWITCH S3
(TR23 and TR24 ONLY.)
ON
•
Used with TR23, TR24,
TR22-F5, TR23-F3, and
TR23-F5 models.
SW1 SW2 SW3
M31111
1
2
3
4
5
6
7
8
9
9
10 11 12
M31110
1
DIP SWITCH S1 FOR HUMIDITY MODELS ONLY.
DIP SWITCH S1
Any controller noted above.
0 TO 10 VDC
0 TO 5 VDC
4 TO 20 mA
ON
ON
ON
For humidity models – TR21-H
and TR23-H only!
1
2
3
4
5
6
7
8
10 11 12
REFER TO CONTROLLER SPECIFIC
WIRING ABOVE FOR TERMINAL
CONNECTIONS 1 THROUGH 10.
SW1 SW2
SW1 SW2
SW1 SW2
M28137
M28132
62-0267—09
4
TR21, TR22, TR23, AND TR24 WALL MODULES
TR22 and TR23 Setpoint Adjustment
Humidity Settings (DIP switch S1)
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.
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.
Table 2. Setpoint Values.
NOTE: These switch settings apply only to the TR21-H and
TR23-H models.
Setpoint Value
55°F (13°C)
65°F (18°C)
75°F (24°C)
85°F (29°C)
Program Setting
2.773 V
To change the setting, first disconnect the power, then set
SW1 and SW2 according to Table 5.
2.148 V
1.345 V
0.43 V
Table 5. DIP Switch S1 Settings.
Individual
Switches
Sensing
Table 3. Wall Module Setpoint Configuration.
Wall Module Model
Control
0-10 Vdc
0-5 Vdc
4-20 mA
1
2
Model
Setpoint
Resistance (Ohms)
OFF
OFF
ON
OFF
ON
TR21-H
TR23-H
°F Absolute
55°F
85°F
9574
1426
9574
1426
9945
1150
OFF
Relative
-9°F offset from 70°F
+9°F offset from 70°F
12°C
TR23 and TR24 Wall Module Override
(Bypass) Pushbutton and LED
Operation
°C Absolute
30°C
TR23-KL and TR23-H-KL
When Used With Excel 10 Controllers:
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.
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.
Table 4. Knob Model Numbers
Model
KNOB-C
KNOB-F
KNOB-O
Description
Celsius scale knob (pack of 20)
Fahrenheit scale knob (pack of 20)
Relative scale knob (pack of 20)
70
LED
1
OVERRIDE (BYPASS)
PUSHBUTTON
LED AND OVERRIDE (BYPASS) PUSHBUTTON AVAILABLE
ONLY ON THE TR23 AND TR24 MODELS.
1
M28144
Fig. 6. LED and override pushbutton locations
(TR23-F Wall Module shown).
5
62-0267—09
TR21, TR22, TR23, AND TR24 WALL MODULES
TR22-F5, TR23-F3, and TR23-F5 Wall
Module Fan Switch
Table 6. Wall Module Operation.
With the switch in the far left position (Auto), the fan
automatically runs at the speed determined by the controller
temperature control algorithm.
Pushbutton Held Down Controller Model
LED Status
0 to 1 second
1 to 4 seconds
No override
Off
On
Timed occupied
override
With the switch in the 0 position, the fan is off. Position 1 is fan
speed 1, etc.
4 to 7 seconds
Unoccupied override Single blink per second
Off
The wall module fan speed switch overrides the temperature
control algorithm.
Longer than 7 seconds No override
not applicable
Continuous occupied Two blinks per second
a
override
When Used With Excel 10 Controllers:
a
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).
Remote function, which is generated from the network.
RESET
NOT ASSIGNED
(LED OFF)
PRESS FOR ONE
TO FOUR SECONDS
PRESS FOR
LESS THAN
ONE SECOND
BYPASS
TIMEOUT
Table 7. Program Settings for Wall Modules with
Fan Switch using Excel 10 Controllers.
OVERRIDE
OCCUPIED
(LED ON)
For Switch Position
Auto
Resistance (Ohms)
1861 ±119
Comment
Left most position
Fan Off position
0
1
2
3
2686 ±127
PRESS FOR FOUR
TO SEVEN SECONDS
3866 ±139
3041 ±130
PRESS FOR
LESS THAN
ONE SECOND
UNOCCUPIED
(LED BLINK)
4601 ±146
Right most position
Override button closed Closed circuit
PRESS FOR
MORE THAN
SEVEN SECONDS
When Used With Excel 600/500/100/80/50
Controllers:
M28145
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).
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.
Table 8. Program Settings for Wall Modules with
Fan Switch using Excel 600/500/100/80 Controllers.
For Switch Position
Auto
Resistance (Ohms)
11.861K ±119
12.686K ±127
13.866K ±139
13.04K ±130
Comment
Left most position
Fan Off position
0
1
2
3
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.
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.
®
LONMARK and the LonMark Logo are trademarks of the LonMark Association.
Automation and Control Solutions
Honeywell International Inc.
1985 Douglas Drive North
Golden Valley, MN 55422
customer.honeywell.com
Honeywell Limited-Honeywell Limitée
35 Dynamic Drive
Toronto, Ontario M1V 4Z9
® U.S. Registered Trademark
© 2009 Honeywell International Inc.
62-0267—09 E.K. Rev. 09-09
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